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/*
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* ffmpeg option parsing
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*
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* This file is part of FFmpeg .
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*
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* FFmpeg is free software ; you can redistribute it and / or
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* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation ; either
* version 2.1 of the License , or ( at your option ) any later version .
*
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* FFmpeg is distributed in the hope that it will be useful ,
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* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg ; if not , write to the Free Software
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* Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1301 USA
*/
# include <stdint.h>
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# include "ffmpeg.h"
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# include "cmdutils.h"
# include "libavformat/avformat.h"
# include "libavcodec/avcodec.h"
# include "libavfilter/avfilter.h"
# include "libavfilter/avfiltergraph.h"
# include "libavutil/audioconvert.h"
# include "libavutil/avassert.h"
# include "libavutil/avstring.h"
# include "libavutil/avutil.h"
# include "libavutil/intreadwrite.h"
# include "libavutil/fifo.h"
# include "libavutil/mathematics.h"
# include "libavutil/opt.h"
# include "libavutil/parseutils.h"
# include "libavutil/pixdesc.h"
# include "libavutil/pixfmt.h"
# define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
{ \
int i , ret ; \
for ( i = 0 ; i < o - > nb_ # # name ; i + + ) { \
char * spec = o - > name [ i ] . specifier ; \
if ( ( ret = check_stream_specifier ( fmtctx , st , spec ) ) > 0 ) \
outvar = o - > name [ i ] . u . type ; \
else if ( ret < 0 ) \
exit_program ( 1 ) ; \
} \
}
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const char * pass_logfilename_prefix ;
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char * vstats_filename ;
float audio_drift_threshold = 0.1 ;
float dts_delta_threshold = 10 ;
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float dts_error_threshold = 3600 * 30 ;
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int audio_volume = 256 ;
int audio_sync_method = 0 ;
int video_sync_method = VSYNC_AUTO ;
int do_deinterlace = 0 ;
int do_benchmark = 0 ;
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int do_benchmark_all = 0 ;
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int do_hex_dump = 0 ;
int do_pkt_dump = 0 ;
int copy_ts = 0 ;
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int copy_tb = - 1 ;
int debug_ts = 0 ;
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int opt_shortest = 0 ;
int exit_on_error = 0 ;
int print_stats = 1 ;
int qp_hist = 0 ;
int same_quant = 0 ;
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int stdin_interaction = 1 ;
int frame_bits_per_raw_sample = 0 ;
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static int intra_only = 0 ;
static const char * video_codec_name = NULL ;
static const char * audio_codec_name = NULL ;
static const char * subtitle_codec_name = NULL ;
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static int file_overwrite = 0 ;
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static int no_file_overwrite = 0 ;
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static int video_discard = 0 ;
static int intra_dc_precision = 8 ;
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static int do_psnr = 0 ;
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static int do_pass = 0 ;
static int input_sync ;
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void reset_options ( OptionsContext * o , int is_input )
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{
const OptionDef * po = options ;
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OptionsContext bak = * o ;
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int i ;
/* all OPT_SPEC and OPT_STRING can be freed in generic way */
while ( po - > name ) {
void * dst = ( uint8_t * ) o + po - > u . off ;
if ( po - > flags & OPT_SPEC ) {
SpecifierOpt * * so = dst ;
int i , * count = ( int * ) ( so + 1 ) ;
for ( i = 0 ; i < * count ; i + + ) {
av_freep ( & ( * so ) [ i ] . specifier ) ;
if ( po - > flags & OPT_STRING )
av_freep ( & ( * so ) [ i ] . u . str ) ;
}
av_freep ( so ) ;
* count = 0 ;
} else if ( po - > flags & OPT_OFFSET & & po - > flags & OPT_STRING )
av_freep ( dst ) ;
po + + ;
}
for ( i = 0 ; i < o - > nb_stream_maps ; i + + )
av_freep ( & o - > stream_maps [ i ] . linklabel ) ;
av_freep ( & o - > stream_maps ) ;
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av_freep ( & o - > audio_channel_maps ) ;
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av_freep ( & o - > streamid_map ) ;
memset ( o , 0 , sizeof ( * o ) ) ;
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if ( is_input ) {
o - > recording_time = bak . recording_time ;
if ( o - > recording_time ! = INT64_MAX )
av_log ( NULL , AV_LOG_WARNING ,
" -t is not an input option, keeping it for the next output; "
" consider fixing your command line. \n " ) ;
} else
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o - > recording_time = INT64_MAX ;
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o - > mux_max_delay = 0.7 ;
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o - > limit_filesize = UINT64_MAX ;
o - > chapters_input_file = INT_MAX ;
uninit_opts ( ) ;
init_opts ( ) ;
}
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static int opt_frame_crop ( const char * opt , const char * arg )
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{
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av_log ( NULL , AV_LOG_FATAL , " Option '%s' has been removed, use the crop filter instead \n " , opt ) ;
return AVERROR ( EINVAL ) ;
}
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static int opt_pad ( const char * opt , const char * arg )
{
av_log ( NULL , AV_LOG_FATAL , " Option '%s' has been removed, use the pad filter instead \n " , opt ) ;
return - 1 ;
}
static int opt_video_channel ( const char * opt , const char * arg )
{
av_log ( NULL , AV_LOG_WARNING , " This option is deprecated, use -channel. \n " ) ;
return opt_default ( " channel " , arg ) ;
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}
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static int opt_video_standard ( const char * opt , const char * arg )
{
av_log ( NULL , AV_LOG_WARNING , " This option is deprecated, use -standard. \n " ) ;
return opt_default ( " standard " , arg ) ;
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}
static int opt_audio_codec ( OptionsContext * o , const char * opt , const char * arg )
{
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audio_codec_name = arg ;
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return parse_option ( o , " codec:a " , arg , options ) ;
}
static int opt_video_codec ( OptionsContext * o , const char * opt , const char * arg )
{
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video_codec_name = arg ;
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return parse_option ( o , " codec:v " , arg , options ) ;
}
static int opt_subtitle_codec ( OptionsContext * o , const char * opt , const char * arg )
{
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subtitle_codec_name = arg ;
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return parse_option ( o , " codec:s " , arg , options ) ;
}
static int opt_data_codec ( OptionsContext * o , const char * opt , const char * arg )
{
return parse_option ( o , " codec:d " , arg , options ) ;
}
static int opt_map ( OptionsContext * o , const char * opt , const char * arg )
{
StreamMap * m = NULL ;
int i , negative = 0 , file_idx ;
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int sync_file_idx = - 1 , sync_stream_idx = 0 ;
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char * p , * sync ;
char * map ;
if ( * arg = = ' - ' ) {
negative = 1 ;
arg + + ;
}
map = av_strdup ( arg ) ;
/* parse sync stream first, just pick first matching stream */
if ( sync = strchr ( map , ' , ' ) ) {
* sync = 0 ;
sync_file_idx = strtol ( sync + 1 , & sync , 0 ) ;
if ( sync_file_idx > = nb_input_files | | sync_file_idx < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid sync file index: %d. \n " , sync_file_idx ) ;
exit_program ( 1 ) ;
}
if ( * sync )
sync + + ;
for ( i = 0 ; i < input_files [ sync_file_idx ] - > nb_streams ; i + + )
if ( check_stream_specifier ( input_files [ sync_file_idx ] - > ctx ,
input_files [ sync_file_idx ] - > ctx - > streams [ i ] , sync ) = = 1 ) {
sync_stream_idx = i ;
break ;
}
if ( i = = input_files [ sync_file_idx ] - > nb_streams ) {
av_log ( NULL , AV_LOG_FATAL , " Sync stream specification in map %s does not "
" match any streams. \n " , arg ) ;
exit_program ( 1 ) ;
}
}
if ( map [ 0 ] = = ' [ ' ) {
/* this mapping refers to lavfi output */
const char * c = map + 1 ;
o - > stream_maps = grow_array ( o - > stream_maps , sizeof ( * o - > stream_maps ) ,
& o - > nb_stream_maps , o - > nb_stream_maps + 1 ) ;
m = & o - > stream_maps [ o - > nb_stream_maps - 1 ] ;
m - > linklabel = av_get_token ( & c , " ] " ) ;
if ( ! m - > linklabel ) {
av_log ( NULL , AV_LOG_ERROR , " Invalid output link label: %s. \n " , map ) ;
exit_program ( 1 ) ;
}
} else {
file_idx = strtol ( map , & p , 0 ) ;
if ( file_idx > = nb_input_files | | file_idx < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid input file index: %d. \n " , file_idx ) ;
exit_program ( 1 ) ;
}
if ( negative )
/* disable some already defined maps */
for ( i = 0 ; i < o - > nb_stream_maps ; i + + ) {
m = & o - > stream_maps [ i ] ;
if ( file_idx = = m - > file_index & &
check_stream_specifier ( input_files [ m - > file_index ] - > ctx ,
input_files [ m - > file_index ] - > ctx - > streams [ m - > stream_index ] ,
* p = = ' : ' ? p + 1 : p ) > 0 )
m - > disabled = 1 ;
}
else
for ( i = 0 ; i < input_files [ file_idx ] - > nb_streams ; i + + ) {
if ( check_stream_specifier ( input_files [ file_idx ] - > ctx , input_files [ file_idx ] - > ctx - > streams [ i ] ,
* p = = ' : ' ? p + 1 : p ) < = 0 )
continue ;
o - > stream_maps = grow_array ( o - > stream_maps , sizeof ( * o - > stream_maps ) ,
& o - > nb_stream_maps , o - > nb_stream_maps + 1 ) ;
m = & o - > stream_maps [ o - > nb_stream_maps - 1 ] ;
m - > file_index = file_idx ;
m - > stream_index = i ;
if ( sync_file_idx > = 0 ) {
m - > sync_file_index = sync_file_idx ;
m - > sync_stream_index = sync_stream_idx ;
} else {
m - > sync_file_index = file_idx ;
m - > sync_stream_index = i ;
}
}
}
if ( ! m ) {
av_log ( NULL , AV_LOG_FATAL , " Stream map '%s' matches no streams. \n " , arg ) ;
exit_program ( 1 ) ;
}
av_freep ( & map ) ;
return 0 ;
}
static int opt_attach ( OptionsContext * o , const char * opt , const char * arg )
{
o - > attachments = grow_array ( o - > attachments , sizeof ( * o - > attachments ) ,
& o - > nb_attachments , o - > nb_attachments + 1 ) ;
o - > attachments [ o - > nb_attachments - 1 ] = arg ;
return 0 ;
}
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static int opt_map_channel ( OptionsContext * o , const char * opt , const char * arg )
{
int n ;
AVStream * st ;
AudioChannelMap * m ;
o - > audio_channel_maps =
grow_array ( o - > audio_channel_maps , sizeof ( * o - > audio_channel_maps ) ,
& o - > nb_audio_channel_maps , o - > nb_audio_channel_maps + 1 ) ;
m = & o - > audio_channel_maps [ o - > nb_audio_channel_maps - 1 ] ;
/* muted channel syntax */
n = sscanf ( arg , " %d:%d.%d " , & m - > channel_idx , & m - > ofile_idx , & m - > ostream_idx ) ;
if ( ( n = = 1 | | n = = 3 ) & & m - > channel_idx = = - 1 ) {
m - > file_idx = m - > stream_idx = - 1 ;
if ( n = = 1 )
m - > ofile_idx = m - > ostream_idx = - 1 ;
return 0 ;
}
/* normal syntax */
n = sscanf ( arg , " %d.%d.%d:%d.%d " ,
& m - > file_idx , & m - > stream_idx , & m - > channel_idx ,
& m - > ofile_idx , & m - > ostream_idx ) ;
if ( n ! = 3 & & n ! = 5 ) {
av_log ( NULL , AV_LOG_FATAL , " Syntax error, mapchan usage: "
" [file.stream.channel|-1][:syncfile:syncstream] \n " ) ;
exit_program ( 1 ) ;
}
if ( n ! = 5 ) // only file.stream.channel specified
m - > ofile_idx = m - > ostream_idx = - 1 ;
/* check input */
if ( m - > file_idx < 0 | | m - > file_idx > = nb_input_files ) {
av_log ( NULL , AV_LOG_FATAL , " mapchan: invalid input file index: %d \n " ,
m - > file_idx ) ;
exit_program ( 1 ) ;
}
if ( m - > stream_idx < 0 | |
m - > stream_idx > = input_files [ m - > file_idx ] - > nb_streams ) {
av_log ( NULL , AV_LOG_FATAL , " mapchan: invalid input file stream index #%d.%d \n " ,
m - > file_idx , m - > stream_idx ) ;
exit_program ( 1 ) ;
}
st = input_files [ m - > file_idx ] - > ctx - > streams [ m - > stream_idx ] ;
if ( st - > codec - > codec_type ! = AVMEDIA_TYPE_AUDIO ) {
av_log ( NULL , AV_LOG_FATAL , " mapchan: stream #%d.%d is not an audio stream. \n " ,
m - > file_idx , m - > stream_idx ) ;
exit_program ( 1 ) ;
}
if ( m - > channel_idx < 0 | | m - > channel_idx > = st - > codec - > channels ) {
av_log ( NULL , AV_LOG_FATAL , " mapchan: invalid audio channel #%d.%d.%d \n " ,
m - > file_idx , m - > stream_idx , m - > channel_idx ) ;
exit_program ( 1 ) ;
}
return 0 ;
}
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/**
* Parse a metadata specifier in arg .
* @ param type metadata type is written here - - g ( lobal ) / s ( tream ) / c ( hapter ) / p ( rogram )
* @ param index for type c / p , chapter / program index is written here
* @ param stream_spec for type s , the stream specifier is written here
*/
static void parse_meta_type ( char * arg , char * type , int * index , const char * * stream_spec )
{
if ( * arg ) {
* type = * arg ;
switch ( * arg ) {
case ' g ' :
break ;
case ' s ' :
if ( * ( + + arg ) & & * arg ! = ' : ' ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid metadata specifier %s. \n " , arg ) ;
exit_program ( 1 ) ;
}
* stream_spec = * arg = = ' : ' ? arg + 1 : " " ;
break ;
case ' c ' :
case ' p ' :
if ( * ( + + arg ) = = ' : ' )
* index = strtol ( + + arg , NULL , 0 ) ;
break ;
default :
av_log ( NULL , AV_LOG_FATAL , " Invalid metadata type %c. \n " , * arg ) ;
exit_program ( 1 ) ;
}
} else
* type = ' g ' ;
}
static int copy_metadata ( char * outspec , char * inspec , AVFormatContext * oc , AVFormatContext * ic , OptionsContext * o )
{
AVDictionary * * meta_in = NULL ;
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AVDictionary * * meta_out = NULL ;
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int i , ret = 0 ;
char type_in , type_out ;
const char * istream_spec = NULL , * ostream_spec = NULL ;
int idx_in = 0 , idx_out = 0 ;
parse_meta_type ( inspec , & type_in , & idx_in , & istream_spec ) ;
parse_meta_type ( outspec , & type_out , & idx_out , & ostream_spec ) ;
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if ( ! ic ) {
if ( type_out = = ' g ' | | ! * outspec )
o - > metadata_global_manual = 1 ;
if ( type_out = = ' s ' | | ! * outspec )
o - > metadata_streams_manual = 1 ;
if ( type_out = = ' c ' | | ! * outspec )
o - > metadata_chapters_manual = 1 ;
return 0 ;
}
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if ( type_in = = ' g ' | | type_out = = ' g ' )
o - > metadata_global_manual = 1 ;
if ( type_in = = ' s ' | | type_out = = ' s ' )
o - > metadata_streams_manual = 1 ;
if ( type_in = = ' c ' | | type_out = = ' c ' )
o - > metadata_chapters_manual = 1 ;
# define METADATA_CHECK_INDEX(index, nb_elems, desc)\
if ( ( index ) < 0 | | ( index ) > = ( nb_elems ) ) { \
av_log ( NULL , AV_LOG_FATAL , " Invalid %s index %d while processing metadata maps. \n " , \
( desc ) , ( index ) ) ; \
exit_program ( 1 ) ; \
}
# define SET_DICT(type, meta, context, index)\
switch ( type ) { \
case ' g ' : \
meta = & context - > metadata ; \
break ; \
case ' c ' : \
METADATA_CHECK_INDEX ( index , context - > nb_chapters , " chapter " ) \
meta = & context - > chapters [ index ] - > metadata ; \
break ; \
case ' p ' : \
METADATA_CHECK_INDEX ( index , context - > nb_programs , " program " ) \
meta = & context - > programs [ index ] - > metadata ; \
break ; \
default : av_assert0 ( 0 ) ; \
} \
SET_DICT ( type_in , meta_in , ic , idx_in ) ;
SET_DICT ( type_out , meta_out , oc , idx_out ) ;
/* for input streams choose first matching stream */
if ( type_in = = ' s ' ) {
for ( i = 0 ; i < ic - > nb_streams ; i + + ) {
if ( ( ret = check_stream_specifier ( ic , ic - > streams [ i ] , istream_spec ) ) > 0 ) {
meta_in = & ic - > streams [ i ] - > metadata ;
break ;
} else if ( ret < 0 )
exit_program ( 1 ) ;
}
if ( ! meta_in ) {
av_log ( NULL , AV_LOG_FATAL , " Stream specifier %s does not match any streams. \n " , istream_spec ) ;
exit_program ( 1 ) ;
}
}
if ( type_out = = ' s ' ) {
for ( i = 0 ; i < oc - > nb_streams ; i + + ) {
if ( ( ret = check_stream_specifier ( oc , oc - > streams [ i ] , ostream_spec ) ) > 0 ) {
meta_out = & oc - > streams [ i ] - > metadata ;
av_dict_copy ( meta_out , * meta_in , AV_DICT_DONT_OVERWRITE ) ;
} else if ( ret < 0 )
exit_program ( 1 ) ;
}
} else
av_dict_copy ( meta_out , * meta_in , AV_DICT_DONT_OVERWRITE ) ;
return 0 ;
}
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static int opt_recording_timestamp ( OptionsContext * o , const char * opt , const char * arg )
{
char buf [ 128 ] ;
int64_t recording_timestamp = parse_time_or_die ( opt , arg , 0 ) / 1E6 ;
struct tm time = * gmtime ( ( time_t * ) & recording_timestamp ) ;
strftime ( buf , sizeof ( buf ) , " creation_time=%FT%T%z " , & time ) ;
parse_option ( o , " metadata " , buf , options ) ;
av_log ( NULL , AV_LOG_WARNING , " %s is deprecated, set the 'creation_time' metadata "
" tag instead. \n " , opt ) ;
return 0 ;
}
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static AVCodec * find_codec_or_die ( const char * name , enum AVMediaType type , int encoder )
{
const char * codec_string = encoder ? " encoder " : " decoder " ;
AVCodec * codec ;
codec = encoder ?
avcodec_find_encoder_by_name ( name ) :
avcodec_find_decoder_by_name ( name ) ;
if ( ! codec ) {
av_log ( NULL , AV_LOG_FATAL , " Unknown %s '%s' \n " , codec_string , name ) ;
exit_program ( 1 ) ;
}
if ( codec - > type ! = type ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid %s type '%s' \n " , codec_string , name ) ;
exit_program ( 1 ) ;
}
return codec ;
}
static AVCodec * choose_decoder ( OptionsContext * o , AVFormatContext * s , AVStream * st )
{
char * codec_name = NULL ;
MATCH_PER_STREAM_OPT ( codec_names , str , codec_name , s , st ) ;
if ( codec_name ) {
AVCodec * codec = find_codec_or_die ( codec_name , st - > codec - > codec_type , 0 ) ;
st - > codec - > codec_id = codec - > id ;
return codec ;
} else
return avcodec_find_decoder ( st - > codec - > codec_id ) ;
}
/**
* Add all the streams from the given input file to the global
* list of input streams .
*/
static void add_input_streams ( OptionsContext * o , AVFormatContext * ic )
{
int i ;
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char * next , * codec_tag = NULL ;
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for ( i = 0 ; i < ic - > nb_streams ; i + + ) {
AVStream * st = ic - > streams [ i ] ;
AVCodecContext * dec = st - > codec ;
InputStream * ist = av_mallocz ( sizeof ( * ist ) ) ;
char * framerate = NULL ;
if ( ! ist )
exit_program ( 1 ) ;
input_streams = grow_array ( input_streams , sizeof ( * input_streams ) , & nb_input_streams , nb_input_streams + 1 ) ;
input_streams [ nb_input_streams - 1 ] = ist ;
ist - > st = st ;
ist - > file_index = nb_input_files ;
ist - > discard = 1 ;
st - > discard = AVDISCARD_ALL ;
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ist - > opts = filter_codec_opts ( codec_opts , ist - > st - > codec - > codec_id , ic , st , choose_decoder ( o , ic , st ) ) ;
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ist - > ts_scale = 1.0 ;
MATCH_PER_STREAM_OPT ( ts_scale , dbl , ist - > ts_scale , ic , st ) ;
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MATCH_PER_STREAM_OPT ( codec_tags , str , codec_tag , ic , st ) ;
if ( codec_tag ) {
uint32_t tag = strtol ( codec_tag , & next , 0 ) ;
if ( * next )
tag = AV_RL32 ( codec_tag ) ;
st - > codec - > codec_tag = tag ;
}
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ist - > dec = choose_decoder ( o , ic , st ) ;
switch ( dec - > codec_type ) {
case AVMEDIA_TYPE_VIDEO :
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if ( ! ist - > dec )
ist - > dec = avcodec_find_decoder ( dec - > codec_id ) ;
if ( dec - > lowres ) {
dec - > flags | = CODEC_FLAG_EMU_EDGE ;
}
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ist - > resample_height = dec - > height ;
ist - > resample_width = dec - > width ;
ist - > resample_pix_fmt = dec - > pix_fmt ;
MATCH_PER_STREAM_OPT ( frame_rates , str , framerate , ic , st ) ;
if ( framerate & & av_parse_video_rate ( & ist - > framerate ,
framerate ) < 0 ) {
av_log ( NULL , AV_LOG_ERROR , " Error parsing framerate %s. \n " ,
framerate ) ;
exit_program ( 1 ) ;
}
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ist - > top_field_first = - 1 ;
MATCH_PER_STREAM_OPT ( top_field_first , i , ist - > top_field_first , ic , st ) ;
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break ;
case AVMEDIA_TYPE_AUDIO :
guess_input_channel_layout ( ist ) ;
ist - > resample_sample_fmt = dec - > sample_fmt ;
ist - > resample_sample_rate = dec - > sample_rate ;
ist - > resample_channels = dec - > channels ;
ist - > resample_channel_layout = dec - > channel_layout ;
break ;
case AVMEDIA_TYPE_DATA :
case AVMEDIA_TYPE_SUBTITLE :
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if ( ! ist - > dec )
ist - > dec = avcodec_find_decoder ( dec - > codec_id ) ;
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MATCH_PER_STREAM_OPT ( fix_sub_duration , i , ist - > fix_sub_duration , ic , st ) ;
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break ;
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case AVMEDIA_TYPE_ATTACHMENT :
case AVMEDIA_TYPE_UNKNOWN :
break ;
default :
abort ( ) ;
}
}
}
static void assert_file_overwrite ( const char * filename )
{
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if ( ( ! file_overwrite | | no_file_overwrite ) & &
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( strchr ( filename , ' : ' ) = = NULL | | filename [ 1 ] = = ' : ' | |
av_strstart ( filename , " file: " , NULL ) ) ) {
if ( avio_check ( filename , 0 ) = = 0 ) {
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if ( stdin_interaction & & ( ! no_file_overwrite | | file_overwrite ) ) {
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fprintf ( stderr , " File '%s' already exists. Overwrite ? [y/N] " , filename ) ;
fflush ( stderr ) ;
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term_exit ( ) ;
signal ( SIGINT , SIG_DFL ) ;
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if ( ! read_yesno ( ) ) {
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av_log ( NULL , AV_LOG_FATAL , " Not overwriting - exiting \n " ) ;
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exit_program ( 1 ) ;
}
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term_init ( ) ;
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}
else {
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av_log ( NULL , AV_LOG_FATAL , " File '%s' already exists. Exiting. \n " , filename ) ;
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exit_program ( 1 ) ;
}
}
}
}
static void dump_attachment ( AVStream * st , const char * filename )
{
int ret ;
AVIOContext * out = NULL ;
AVDictionaryEntry * e ;
if ( ! st - > codec - > extradata_size ) {
av_log ( NULL , AV_LOG_WARNING , " No extradata to dump in stream #%d:%d. \n " ,
nb_input_files - 1 , st - > index ) ;
return ;
}
if ( ! * filename & & ( e = av_dict_get ( st - > metadata , " filename " , NULL , 0 ) ) )
filename = e - > value ;
if ( ! * filename ) {
av_log ( NULL , AV_LOG_FATAL , " No filename specified and no 'filename' tag "
" in stream #%d:%d. \n " , nb_input_files - 1 , st - > index ) ;
exit_program ( 1 ) ;
}
assert_file_overwrite ( filename ) ;
if ( ( ret = avio_open2 ( & out , filename , AVIO_FLAG_WRITE , & int_cb , NULL ) ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Could not open file %s for writing. \n " ,
filename ) ;
exit_program ( 1 ) ;
}
avio_write ( out , st - > codec - > extradata , st - > codec - > extradata_size ) ;
avio_flush ( out ) ;
avio_close ( out ) ;
}
static int opt_input_file ( OptionsContext * o , const char * opt , const char * filename )
{
AVFormatContext * ic ;
AVInputFormat * file_iformat = NULL ;
int err , i , ret ;
int64_t timestamp ;
uint8_t buf [ 128 ] ;
AVDictionary * * opts ;
int orig_nb_streams ; // number of streams before avformat_find_stream_info
if ( o - > format ) {
if ( ! ( file_iformat = av_find_input_format ( o - > format ) ) ) {
av_log ( NULL , AV_LOG_FATAL , " Unknown input format: '%s' \n " , o - > format ) ;
exit_program ( 1 ) ;
}
}
if ( ! strcmp ( filename , " - " ) )
filename = " pipe: " ;
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stdin_interaction & = strncmp ( filename , " pipe: " , 5 ) & &
strcmp ( filename , " /dev/stdin " ) ;
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/* get default parameters from command line */
ic = avformat_alloc_context ( ) ;
if ( ! ic ) {
print_error ( filename , AVERROR ( ENOMEM ) ) ;
exit_program ( 1 ) ;
}
if ( o - > nb_audio_sample_rate ) {
snprintf ( buf , sizeof ( buf ) , " %d " , o - > audio_sample_rate [ o - > nb_audio_sample_rate - 1 ] . u . i ) ;
av_dict_set ( & format_opts , " sample_rate " , buf , 0 ) ;
}
if ( o - > nb_audio_channels ) {
/* because we set audio_channels based on both the "ac" and
* " channel_layout " options , we need to check that the specified
* demuxer actually has the " channels " option before setting it */
if ( file_iformat & & file_iformat - > priv_class & &
av_opt_find ( & file_iformat - > priv_class , " channels " , NULL , 0 ,
AV_OPT_SEARCH_FAKE_OBJ ) ) {
snprintf ( buf , sizeof ( buf ) , " %d " ,
o - > audio_channels [ o - > nb_audio_channels - 1 ] . u . i ) ;
av_dict_set ( & format_opts , " channels " , buf , 0 ) ;
}
}
if ( o - > nb_frame_rates ) {
/* set the format-level framerate option;
* this is important for video grabbers , e . g . x11 */
if ( file_iformat & & file_iformat - > priv_class & &
av_opt_find ( & file_iformat - > priv_class , " framerate " , NULL , 0 ,
AV_OPT_SEARCH_FAKE_OBJ ) ) {
av_dict_set ( & format_opts , " framerate " ,
o - > frame_rates [ o - > nb_frame_rates - 1 ] . u . str , 0 ) ;
}
}
if ( o - > nb_frame_sizes ) {
av_dict_set ( & format_opts , " video_size " , o - > frame_sizes [ o - > nb_frame_sizes - 1 ] . u . str , 0 ) ;
}
if ( o - > nb_frame_pix_fmts )
av_dict_set ( & format_opts , " pixel_format " , o - > frame_pix_fmts [ o - > nb_frame_pix_fmts - 1 ] . u . str , 0 ) ;
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ic - > video_codec_id = video_codec_name ?
find_codec_or_die ( video_codec_name , AVMEDIA_TYPE_VIDEO , 0 ) - > id : AV_CODEC_ID_NONE ;
ic - > audio_codec_id = audio_codec_name ?
find_codec_or_die ( audio_codec_name , AVMEDIA_TYPE_AUDIO , 0 ) - > id : AV_CODEC_ID_NONE ;
ic - > subtitle_codec_id = subtitle_codec_name ?
find_codec_or_die ( subtitle_codec_name , AVMEDIA_TYPE_SUBTITLE , 0 ) - > id : AV_CODEC_ID_NONE ;
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ic - > flags | = AVFMT_FLAG_NONBLOCK ;
ic - > interrupt_callback = int_cb ;
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/* open the input file with generic avformat function */
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err = avformat_open_input ( & ic , filename , file_iformat , & format_opts ) ;
if ( err < 0 ) {
print_error ( filename , err ) ;
exit_program ( 1 ) ;
}
assert_avoptions ( format_opts ) ;
/* apply forced codec ids */
for ( i = 0 ; i < ic - > nb_streams ; i + + )
choose_decoder ( o , ic , ic - > streams [ i ] ) ;
/* Set AVCodecContext options for avformat_find_stream_info */
opts = setup_find_stream_info_opts ( ic , codec_opts ) ;
orig_nb_streams = ic - > nb_streams ;
/* If not enough info to get the stream parameters, we decode the
first frames to get it . ( used in mpeg case for example ) */
ret = avformat_find_stream_info ( ic , opts ) ;
if ( ret < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " %s: could not find codec parameters \n " , filename ) ;
avformat_close_input ( & ic ) ;
exit_program ( 1 ) ;
}
timestamp = o - > start_time ;
/* add the stream start time */
if ( ic - > start_time ! = AV_NOPTS_VALUE )
timestamp + = ic - > start_time ;
/* if seeking requested, we execute it */
if ( o - > start_time ! = 0 ) {
ret = av_seek_frame ( ic , - 1 , timestamp , AVSEEK_FLAG_BACKWARD ) ;
if ( ret < 0 ) {
av_log ( NULL , AV_LOG_WARNING , " %s: could not seek to position %0.3f \n " ,
filename , ( double ) timestamp / AV_TIME_BASE ) ;
}
}
/* update the current parameters so that they match the one of the input stream */
add_input_streams ( o , ic ) ;
/* dump the file content */
av_dump_format ( ic , nb_input_files , filename , 0 ) ;
input_files = grow_array ( input_files , sizeof ( * input_files ) , & nb_input_files , nb_input_files + 1 ) ;
if ( ! ( input_files [ nb_input_files - 1 ] = av_mallocz ( sizeof ( * input_files [ 0 ] ) ) ) )
exit_program ( 1 ) ;
input_files [ nb_input_files - 1 ] - > ctx = ic ;
input_files [ nb_input_files - 1 ] - > ist_index = nb_input_streams - ic - > nb_streams ;
input_files [ nb_input_files - 1 ] - > ts_offset = o - > input_ts_offset - ( copy_ts ? 0 : timestamp ) ;
input_files [ nb_input_files - 1 ] - > nb_streams = ic - > nb_streams ;
input_files [ nb_input_files - 1 ] - > rate_emu = o - > rate_emu ;
for ( i = 0 ; i < o - > nb_dump_attachment ; i + + ) {
int j ;
for ( j = 0 ; j < ic - > nb_streams ; j + + ) {
AVStream * st = ic - > streams [ j ] ;
if ( check_stream_specifier ( ic , st , o - > dump_attachment [ i ] . specifier ) = = 1 )
dump_attachment ( st , o - > dump_attachment [ i ] . u . str ) ;
}
}
for ( i = 0 ; i < orig_nb_streams ; i + + )
av_dict_free ( & opts [ i ] ) ;
av_freep ( & opts ) ;
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reset_options ( o , 1 ) ;
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return 0 ;
}
static uint8_t * get_line ( AVIOContext * s )
{
AVIOContext * line ;
uint8_t * buf ;
char c ;
if ( avio_open_dyn_buf ( & line ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Could not alloc buffer for reading preset. \n " ) ;
exit_program ( 1 ) ;
}
while ( ( c = avio_r8 ( s ) ) & & c ! = ' \n ' )
avio_w8 ( line , c ) ;
avio_w8 ( line , 0 ) ;
avio_close_dyn_buf ( line , & buf ) ;
return buf ;
}
static int get_preset_file_2 ( const char * preset_name , const char * codec_name , AVIOContext * * s )
{
int i , ret = 1 ;
char filename [ 1000 ] ;
const char * base [ 3 ] = { getenv ( " AVCONV_DATADIR " ) ,
getenv ( " HOME " ) ,
AVCONV_DATADIR ,
} ;
for ( i = 0 ; i < FF_ARRAY_ELEMS ( base ) & & ret ; i + + ) {
if ( ! base [ i ] )
continue ;
if ( codec_name ) {
snprintf ( filename , sizeof ( filename ) , " %s%s/%s-%s.avpreset " , base [ i ] ,
i ! = 1 ? " " : " /.avconv " , codec_name , preset_name ) ;
ret = avio_open2 ( s , filename , AVIO_FLAG_READ , & int_cb , NULL ) ;
}
if ( ret ) {
snprintf ( filename , sizeof ( filename ) , " %s%s/%s.avpreset " , base [ i ] ,
i ! = 1 ? " " : " /.avconv " , preset_name ) ;
ret = avio_open2 ( s , filename , AVIO_FLAG_READ , & int_cb , NULL ) ;
}
}
return ret ;
}
static void choose_encoder ( OptionsContext * o , AVFormatContext * s , OutputStream * ost )
{
char * codec_name = NULL ;
MATCH_PER_STREAM_OPT ( codec_names , str , codec_name , s , ost - > st ) ;
if ( ! codec_name ) {
ost - > st - > codec - > codec_id = av_guess_codec ( s - > oformat , NULL , s - > filename ,
NULL , ost - > st - > codec - > codec_type ) ;
ost - > enc = avcodec_find_encoder ( ost - > st - > codec - > codec_id ) ;
} else if ( ! strcmp ( codec_name , " copy " ) )
ost - > stream_copy = 1 ;
else {
ost - > enc = find_codec_or_die ( codec_name , ost - > st - > codec - > codec_type , 1 ) ;
ost - > st - > codec - > codec_id = ost - > enc - > id ;
}
}
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static OutputStream * new_output_stream ( OptionsContext * o , AVFormatContext * oc , enum AVMediaType type , int source_index )
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{
OutputStream * ost ;
AVStream * st = avformat_new_stream ( oc , NULL ) ;
int idx = oc - > nb_streams - 1 , ret = 0 ;
char * bsf = NULL , * next , * codec_tag = NULL ;
AVBitStreamFilterContext * bsfc , * bsfc_prev = NULL ;
double qscale = - 1 ;
char * buf = NULL , * arg = NULL , * preset = NULL ;
AVIOContext * s = NULL ;
if ( ! st ) {
av_log ( NULL , AV_LOG_FATAL , " Could not alloc stream. \n " ) ;
exit_program ( 1 ) ;
}
if ( oc - > nb_streams - 1 < o - > nb_streamid_map )
st - > id = o - > streamid_map [ oc - > nb_streams - 1 ] ;
output_streams = grow_array ( output_streams , sizeof ( * output_streams ) , & nb_output_streams ,
nb_output_streams + 1 ) ;
if ( ! ( ost = av_mallocz ( sizeof ( * ost ) ) ) )
exit_program ( 1 ) ;
output_streams [ nb_output_streams - 1 ] = ost ;
ost - > file_index = nb_output_files ;
ost - > index = idx ;
ost - > st = st ;
st - > codec - > codec_type = type ;
choose_encoder ( o , oc , ost ) ;
if ( ost - > enc ) {
ost - > opts = filter_codec_opts ( codec_opts , ost - > enc - > id , oc , st , ost - > enc ) ;
}
avcodec_get_context_defaults3 ( st - > codec , ost - > enc ) ;
st - > codec - > codec_type = type ; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
MATCH_PER_STREAM_OPT ( presets , str , preset , oc , st ) ;
if ( preset & & ( ! ( ret = get_preset_file_2 ( preset , ost - > enc - > name , & s ) ) ) ) {
do {
buf = get_line ( s ) ;
if ( ! buf [ 0 ] | | buf [ 0 ] = = ' # ' ) {
av_free ( buf ) ;
continue ;
}
if ( ! ( arg = strchr ( buf , ' = ' ) ) ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid line found in the preset file. \n " ) ;
exit_program ( 1 ) ;
}
* arg + + = 0 ;
av_dict_set ( & ost - > opts , buf , arg , AV_DICT_DONT_OVERWRITE ) ;
av_free ( buf ) ;
} while ( ! s - > eof_reached ) ;
avio_close ( s ) ;
}
if ( ret ) {
av_log ( NULL , AV_LOG_FATAL ,
" Preset %s specified for stream %d:%d, but could not be opened. \n " ,
preset , ost - > file_index , ost - > index ) ;
exit_program ( 1 ) ;
}
ost - > max_frames = INT64_MAX ;
MATCH_PER_STREAM_OPT ( max_frames , i64 , ost - > max_frames , oc , st ) ;
MATCH_PER_STREAM_OPT ( bitstream_filters , str , bsf , oc , st ) ;
while ( bsf ) {
if ( next = strchr ( bsf , ' , ' ) )
* next + + = 0 ;
if ( ! ( bsfc = av_bitstream_filter_init ( bsf ) ) ) {
av_log ( NULL , AV_LOG_FATAL , " Unknown bitstream filter %s \n " , bsf ) ;
exit_program ( 1 ) ;
}
if ( bsfc_prev )
bsfc_prev - > next = bsfc ;
else
ost - > bitstream_filters = bsfc ;
bsfc_prev = bsfc ;
bsf = next ;
}
MATCH_PER_STREAM_OPT ( codec_tags , str , codec_tag , oc , st ) ;
if ( codec_tag ) {
uint32_t tag = strtol ( codec_tag , & next , 0 ) ;
if ( * next )
tag = AV_RL32 ( codec_tag ) ;
st - > codec - > codec_tag = tag ;
}
MATCH_PER_STREAM_OPT ( qscale , dbl , qscale , oc , st ) ;
if ( qscale > = 0 | | same_quant ) {
st - > codec - > flags | = CODEC_FLAG_QSCALE ;
st - > codec - > global_quality = FF_QP2LAMBDA * qscale ;
}
if ( oc - > oformat - > flags & AVFMT_GLOBALHEADER )
st - > codec - > flags | = CODEC_FLAG_GLOBAL_HEADER ;
av_opt_get_int ( sws_opts , " sws_flags " , 0 , & ost - > sws_flags ) ;
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av_opt_get_int ( swr_opts , " dither_method " , 0 , & ost - > swr_dither_method ) ;
av_opt_get_double ( swr_opts , " dither_scale " , 0 , & ost - > swr_dither_scale ) ;
ost - > source_index = source_index ;
if ( source_index > = 0 ) {
ost - > sync_ist = input_streams [ source_index ] ;
input_streams [ source_index ] - > discard = 0 ;
input_streams [ source_index ] - > st - > discard = AVDISCARD_NONE ;
}
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return ost ;
}
static void parse_matrix_coeffs ( uint16_t * dest , const char * str )
{
int i ;
const char * p = str ;
for ( i = 0 ; ; i + + ) {
dest [ i ] = atoi ( p ) ;
if ( i = = 63 )
break ;
p = strchr ( p , ' , ' ) ;
if ( ! p ) {
av_log ( NULL , AV_LOG_FATAL , " Syntax error in matrix \" %s \" at coeff %d \n " , str , i ) ;
exit_program ( 1 ) ;
}
p + + ;
}
}
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static OutputStream * new_video_stream ( OptionsContext * o , AVFormatContext * oc , int source_index )
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{
AVStream * st ;
OutputStream * ost ;
AVCodecContext * video_enc ;
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char * frame_rate = NULL ;
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ost = new_output_stream ( o , oc , AVMEDIA_TYPE_VIDEO , source_index ) ;
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st = ost - > st ;
video_enc = st - > codec ;
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MATCH_PER_STREAM_OPT ( frame_rates , str , frame_rate , oc , st ) ;
if ( frame_rate & & av_parse_video_rate ( & ost - > frame_rate , frame_rate ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid framerate value: %s \n " , frame_rate ) ;
exit_program ( 1 ) ;
}
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if ( ! ost - > stream_copy ) {
const char * p = NULL ;
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char * frame_size = NULL ;
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char * frame_aspect_ratio = NULL , * frame_pix_fmt = NULL ;
char * intra_matrix = NULL , * inter_matrix = NULL ;
const char * filters = " null " ;
int i ;
MATCH_PER_STREAM_OPT ( frame_sizes , str , frame_size , oc , st ) ;
if ( frame_size & & av_parse_video_size ( & video_enc - > width , & video_enc - > height , frame_size ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid frame size: %s. \n " , frame_size ) ;
exit_program ( 1 ) ;
}
MATCH_PER_STREAM_OPT ( frame_aspect_ratios , str , frame_aspect_ratio , oc , st ) ;
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if ( frame_aspect_ratio ) {
AVRational q ;
if ( av_parse_ratio ( & q , frame_aspect_ratio , 255 , 0 , NULL ) < 0 | |
q . num < = 0 | | q . den < = 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid aspect ratio: %s \n " , frame_aspect_ratio ) ;
exit_program ( 1 ) ;
}
ost - > frame_aspect_ratio = av_q2d ( q ) ;
}
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video_enc - > bits_per_raw_sample = frame_bits_per_raw_sample ;
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MATCH_PER_STREAM_OPT ( frame_pix_fmts , str , frame_pix_fmt , oc , st ) ;
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if ( frame_pix_fmt & & * frame_pix_fmt = = ' + ' ) {
ost - > keep_pix_fmt = 1 ;
if ( ! * + + frame_pix_fmt )
frame_pix_fmt = NULL ;
}
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if ( frame_pix_fmt & & ( video_enc - > pix_fmt = av_get_pix_fmt ( frame_pix_fmt ) ) = = PIX_FMT_NONE ) {
av_log ( NULL , AV_LOG_FATAL , " Unknown pixel format requested: %s. \n " , frame_pix_fmt ) ;
exit_program ( 1 ) ;
}
st - > sample_aspect_ratio = video_enc - > sample_aspect_ratio ;
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if ( intra_only )
video_enc - > gop_size = 0 ;
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MATCH_PER_STREAM_OPT ( intra_matrices , str , intra_matrix , oc , st ) ;
if ( intra_matrix ) {
if ( ! ( video_enc - > intra_matrix = av_mallocz ( sizeof ( * video_enc - > intra_matrix ) * 64 ) ) ) {
av_log ( NULL , AV_LOG_FATAL , " Could not allocate memory for intra matrix. \n " ) ;
exit_program ( 1 ) ;
}
parse_matrix_coeffs ( video_enc - > intra_matrix , intra_matrix ) ;
}
MATCH_PER_STREAM_OPT ( inter_matrices , str , inter_matrix , oc , st ) ;
if ( inter_matrix ) {
if ( ! ( video_enc - > inter_matrix = av_mallocz ( sizeof ( * video_enc - > inter_matrix ) * 64 ) ) ) {
av_log ( NULL , AV_LOG_FATAL , " Could not allocate memory for inter matrix. \n " ) ;
exit_program ( 1 ) ;
}
parse_matrix_coeffs ( video_enc - > inter_matrix , inter_matrix ) ;
}
MATCH_PER_STREAM_OPT ( rc_overrides , str , p , oc , st ) ;
for ( i = 0 ; p ; i + + ) {
int start , end , q ;
int e = sscanf ( p , " %d,%d,%d " , & start , & end , & q ) ;
if ( e ! = 3 ) {
av_log ( NULL , AV_LOG_FATAL , " error parsing rc_override \n " ) ;
exit_program ( 1 ) ;
}
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/* FIXME realloc failure */
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video_enc - > rc_override =
av_realloc ( video_enc - > rc_override ,
sizeof ( RcOverride ) * ( i + 1 ) ) ;
video_enc - > rc_override [ i ] . start_frame = start ;
video_enc - > rc_override [ i ] . end_frame = end ;
if ( q > 0 ) {
video_enc - > rc_override [ i ] . qscale = q ;
video_enc - > rc_override [ i ] . quality_factor = 1.0 ;
}
else {
video_enc - > rc_override [ i ] . qscale = 0 ;
video_enc - > rc_override [ i ] . quality_factor = - q / 100.0 ;
}
p = strchr ( p , ' / ' ) ;
if ( p ) p + + ;
}
video_enc - > rc_override_count = i ;
if ( ! video_enc - > rc_initial_buffer_occupancy )
video_enc - > rc_initial_buffer_occupancy = video_enc - > rc_buffer_size * 3 / 4 ;
video_enc - > intra_dc_precision = intra_dc_precision - 8 ;
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if ( do_psnr )
video_enc - > flags | = CODEC_FLAG_PSNR ;
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/* two pass mode */
if ( do_pass ) {
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if ( do_pass & 1 ) {
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video_enc - > flags | = CODEC_FLAG_PASS1 ;
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}
if ( do_pass & 2 ) {
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video_enc - > flags | = CODEC_FLAG_PASS2 ;
}
}
MATCH_PER_STREAM_OPT ( forced_key_frames , str , ost - > forced_keyframes , oc , st ) ;
if ( ost - > forced_keyframes )
ost - > forced_keyframes = av_strdup ( ost - > forced_keyframes ) ;
MATCH_PER_STREAM_OPT ( force_fps , i , ost - > force_fps , oc , st ) ;
ost - > top_field_first = - 1 ;
MATCH_PER_STREAM_OPT ( top_field_first , i , ost - > top_field_first , oc , st ) ;
MATCH_PER_STREAM_OPT ( filters , str , filters , oc , st ) ;
ost - > avfilter = av_strdup ( filters ) ;
} else {
MATCH_PER_STREAM_OPT ( copy_initial_nonkeyframes , i , ost - > copy_initial_nonkeyframes , oc , st ) ;
}
return ost ;
}
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static OutputStream * new_audio_stream ( OptionsContext * o , AVFormatContext * oc , int source_index )
2012-08-01 16:23:12 +00:00
{
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int n ;
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AVStream * st ;
OutputStream * ost ;
AVCodecContext * audio_enc ;
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ost = new_output_stream ( o , oc , AVMEDIA_TYPE_AUDIO , source_index ) ;
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st = ost - > st ;
audio_enc = st - > codec ;
audio_enc - > codec_type = AVMEDIA_TYPE_AUDIO ;
if ( ! ost - > stream_copy ) {
char * sample_fmt = NULL ;
const char * filters = " anull " ;
MATCH_PER_STREAM_OPT ( audio_channels , i , audio_enc - > channels , oc , st ) ;
MATCH_PER_STREAM_OPT ( sample_fmts , str , sample_fmt , oc , st ) ;
if ( sample_fmt & &
( audio_enc - > sample_fmt = av_get_sample_fmt ( sample_fmt ) ) = = AV_SAMPLE_FMT_NONE ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid sample format '%s' \n " , sample_fmt ) ;
exit_program ( 1 ) ;
}
MATCH_PER_STREAM_OPT ( audio_sample_rate , i , audio_enc - > sample_rate , oc , st ) ;
MATCH_PER_STREAM_OPT ( filters , str , filters , oc , st ) ;
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av_assert1 ( filters ) ;
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ost - > avfilter = av_strdup ( filters ) ;
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/* check for channel mapping for this audio stream */
for ( n = 0 ; n < o - > nb_audio_channel_maps ; n + + ) {
AudioChannelMap * map = & o - > audio_channel_maps [ n ] ;
InputStream * ist = input_streams [ ost - > source_index ] ;
if ( ( map - > channel_idx = = - 1 | | ( ist - > file_index = = map - > file_idx & & ist - > st - > index = = map - > stream_idx ) ) & &
( map - > ofile_idx = = - 1 | | ost - > file_index = = map - > ofile_idx ) & &
( map - > ostream_idx = = - 1 | | ost - > st - > index = = map - > ostream_idx ) ) {
if ( ost - > audio_channels_mapped < FF_ARRAY_ELEMS ( ost - > audio_channels_map ) )
ost - > audio_channels_map [ ost - > audio_channels_mapped + + ] = map - > channel_idx ;
else
av_log ( NULL , AV_LOG_FATAL , " Max channel mapping for output %d.%d reached \n " ,
ost - > file_index , ost - > st - > index ) ;
}
}
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}
return ost ;
}
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static OutputStream * new_data_stream ( OptionsContext * o , AVFormatContext * oc , int source_index )
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{
OutputStream * ost ;
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ost = new_output_stream ( o , oc , AVMEDIA_TYPE_DATA , source_index ) ;
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if ( ! ost - > stream_copy ) {
av_log ( NULL , AV_LOG_FATAL , " Data stream encoding not supported yet (only streamcopy) \n " ) ;
exit_program ( 1 ) ;
}
return ost ;
}
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static OutputStream * new_attachment_stream ( OptionsContext * o , AVFormatContext * oc , int source_index )
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{
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OutputStream * ost = new_output_stream ( o , oc , AVMEDIA_TYPE_ATTACHMENT , source_index ) ;
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ost - > stream_copy = 1 ;
return ost ;
}
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static OutputStream * new_subtitle_stream ( OptionsContext * o , AVFormatContext * oc , int source_index )
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{
AVStream * st ;
OutputStream * ost ;
AVCodecContext * subtitle_enc ;
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ost = new_output_stream ( o , oc , AVMEDIA_TYPE_SUBTITLE , source_index ) ;
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st = ost - > st ;
subtitle_enc = st - > codec ;
subtitle_enc - > codec_type = AVMEDIA_TYPE_SUBTITLE ;
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MATCH_PER_STREAM_OPT ( copy_initial_nonkeyframes , i , ost - > copy_initial_nonkeyframes , oc , st ) ;
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if ( ! ost - > stream_copy ) {
char * frame_size = NULL ;
MATCH_PER_STREAM_OPT ( frame_sizes , str , frame_size , oc , st ) ;
if ( frame_size & & av_parse_video_size ( & subtitle_enc - > width , & subtitle_enc - > height , frame_size ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid frame size: %s. \n " , frame_size ) ;
exit_program ( 1 ) ;
}
}
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return ost ;
}
/* arg format is "output-stream-index:streamid-value". */
static int opt_streamid ( OptionsContext * o , const char * opt , const char * arg )
{
int idx ;
char * p ;
char idx_str [ 16 ] ;
av_strlcpy ( idx_str , arg , sizeof ( idx_str ) ) ;
p = strchr ( idx_str , ' : ' ) ;
if ( ! p ) {
av_log ( NULL , AV_LOG_FATAL ,
" Invalid value '%s' for option '%s', required syntax is 'index:value' \n " ,
arg , opt ) ;
exit_program ( 1 ) ;
}
* p + + = ' \0 ' ;
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idx = parse_number_or_die ( opt , idx_str , OPT_INT , 0 , MAX_STREAMS - 1 ) ;
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o - > streamid_map = grow_array ( o - > streamid_map , sizeof ( * o - > streamid_map ) , & o - > nb_streamid_map , idx + 1 ) ;
o - > streamid_map [ idx ] = parse_number_or_die ( opt , p , OPT_INT , 0 , INT_MAX ) ;
return 0 ;
}
static int copy_chapters ( InputFile * ifile , OutputFile * ofile , int copy_metadata )
{
AVFormatContext * is = ifile - > ctx ;
AVFormatContext * os = ofile - > ctx ;
int i ;
for ( i = 0 ; i < is - > nb_chapters ; i + + ) {
AVChapter * in_ch = is - > chapters [ i ] , * out_ch ;
int64_t ts_off = av_rescale_q ( ofile - > start_time - ifile - > ts_offset ,
AV_TIME_BASE_Q , in_ch - > time_base ) ;
int64_t rt = ( ofile - > recording_time = = INT64_MAX ) ? INT64_MAX :
av_rescale_q ( ofile - > recording_time , AV_TIME_BASE_Q , in_ch - > time_base ) ;
if ( in_ch - > end < ts_off )
continue ;
if ( rt ! = INT64_MAX & & in_ch - > start > rt + ts_off )
break ;
out_ch = av_mallocz ( sizeof ( AVChapter ) ) ;
if ( ! out_ch )
return AVERROR ( ENOMEM ) ;
out_ch - > id = in_ch - > id ;
out_ch - > time_base = in_ch - > time_base ;
out_ch - > start = FFMAX ( 0 , in_ch - > start - ts_off ) ;
out_ch - > end = FFMIN ( rt , in_ch - > end - ts_off ) ;
if ( copy_metadata )
av_dict_copy ( & out_ch - > metadata , in_ch - > metadata , 0 ) ;
os - > nb_chapters + + ;
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os - > chapters = av_realloc_f ( os - > chapters , os - > nb_chapters , sizeof ( AVChapter ) ) ;
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if ( ! os - > chapters )
return AVERROR ( ENOMEM ) ;
os - > chapters [ os - > nb_chapters - 1 ] = out_ch ;
}
return 0 ;
}
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static int read_ffserver_streams ( OptionsContext * o , AVFormatContext * s , const char * filename )
{
int i , err ;
AVFormatContext * ic = avformat_alloc_context ( ) ;
ic - > interrupt_callback = int_cb ;
err = avformat_open_input ( & ic , filename , NULL , NULL ) ;
if ( err < 0 )
return err ;
/* copy stream format */
for ( i = 0 ; i < ic - > nb_streams ; i + + ) {
AVStream * st ;
OutputStream * ost ;
AVCodec * codec ;
AVCodecContext * avctx ;
codec = avcodec_find_encoder ( ic - > streams [ i ] - > codec - > codec_id ) ;
ost = new_output_stream ( o , s , codec - > type , - 1 ) ;
st = ost - > st ;
avctx = st - > codec ;
ost - > enc = codec ;
// FIXME: a more elegant solution is needed
memcpy ( st , ic - > streams [ i ] , sizeof ( AVStream ) ) ;
st - > cur_dts = 0 ;
st - > info = av_malloc ( sizeof ( * st - > info ) ) ;
memcpy ( st - > info , ic - > streams [ i ] - > info , sizeof ( * st - > info ) ) ;
st - > codec = avctx ;
avcodec_copy_context ( st - > codec , ic - > streams [ i ] - > codec ) ;
if ( st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO & & ! ost - > stream_copy )
choose_sample_fmt ( st , codec ) ;
else if ( st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO & & ! ost - > stream_copy )
choose_pixel_fmt ( st , codec , st - > codec - > pix_fmt ) ;
}
avformat_close_input ( & ic ) ;
return 0 ;
}
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static void init_output_filter ( OutputFilter * ofilter , OptionsContext * o ,
AVFormatContext * oc )
{
OutputStream * ost ;
switch ( avfilter_pad_get_type ( ofilter - > out_tmp - > filter_ctx - > output_pads ,
ofilter - > out_tmp - > pad_idx ) ) {
2012-08-08 22:26:38 +00:00
case AVMEDIA_TYPE_VIDEO : ost = new_video_stream ( o , oc , - 1 ) ; break ;
case AVMEDIA_TYPE_AUDIO : ost = new_audio_stream ( o , oc , - 1 ) ; break ;
2012-08-01 16:23:12 +00:00
default :
av_log ( NULL , AV_LOG_FATAL , " Only video and audio filters are supported "
" currently. \n " ) ;
exit_program ( 1 ) ;
}
ost - > source_index = - 1 ;
ost - > filter = ofilter ;
ofilter - > ost = ost ;
if ( ost - > stream_copy ) {
av_log ( NULL , AV_LOG_ERROR , " Streamcopy requested for output stream %d:%d, "
" which is fed from a complex filtergraph. Filtering and streamcopy "
" cannot be used together. \n " , ost - > file_index , ost - > index ) ;
exit_program ( 1 ) ;
}
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if ( o - > recording_time ! = INT64_MAX )
av_log ( NULL , AV_LOG_WARNING ,
" -t does not work with -filter_complex (yet). \n " ) ;
2012-08-01 16:23:12 +00:00
if ( configure_output_filter ( ofilter - > graph , ofilter , ofilter - > out_tmp ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Error configuring filter. \n " ) ;
exit_program ( 1 ) ;
}
avfilter_inout_free ( & ofilter - > out_tmp ) ;
}
static int configure_complex_filters ( void )
{
int i , ret = 0 ;
for ( i = 0 ; i < nb_filtergraphs ; i + + )
if ( ! filtergraphs [ i ] - > graph & &
( ret = configure_filtergraph ( filtergraphs [ i ] ) ) < 0 )
return ret ;
return 0 ;
}
void opt_output_file ( void * optctx , const char * filename )
{
OptionsContext * o = optctx ;
AVFormatContext * oc ;
int i , j , err ;
AVOutputFormat * file_oformat ;
OutputStream * ost ;
InputStream * ist ;
if ( configure_complex_filters ( ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Error configuring filters. \n " ) ;
exit_program ( 1 ) ;
}
if ( ! strcmp ( filename , " - " ) )
filename = " pipe: " ;
2012-08-08 22:26:38 +00:00
err = avformat_alloc_output_context2 ( & oc , NULL , o - > format , filename ) ;
2012-08-01 16:23:12 +00:00
if ( ! oc ) {
2012-08-08 22:26:38 +00:00
print_error ( filename , err ) ;
2012-08-01 16:23:12 +00:00
exit_program ( 1 ) ;
}
2012-08-08 22:26:38 +00:00
file_oformat = oc - > oformat ;
2012-08-01 16:23:12 +00:00
oc - > interrupt_callback = int_cb ;
/* create streams for all unlabeled output pads */
for ( i = 0 ; i < nb_filtergraphs ; i + + ) {
FilterGraph * fg = filtergraphs [ i ] ;
for ( j = 0 ; j < fg - > nb_outputs ; j + + ) {
OutputFilter * ofilter = fg - > outputs [ j ] ;
if ( ! ofilter - > out_tmp | | ofilter - > out_tmp - > name )
continue ;
switch ( avfilter_pad_get_type ( ofilter - > out_tmp - > filter_ctx - > output_pads ,
ofilter - > out_tmp - > pad_idx ) ) {
case AVMEDIA_TYPE_VIDEO : o - > video_disable = 1 ; break ;
case AVMEDIA_TYPE_AUDIO : o - > audio_disable = 1 ; break ;
case AVMEDIA_TYPE_SUBTITLE : o - > subtitle_disable = 1 ; break ;
}
init_output_filter ( ofilter , o , oc ) ;
}
}
2012-08-08 22:26:38 +00:00
if ( ! strcmp ( file_oformat - > name , " ffm " ) & &
av_strstart ( filename , " http: " , NULL ) ) {
int j ;
/* special case for files sent to ffserver: we get the stream
parameters from ffserver */
int err = read_ffserver_streams ( o , oc , filename ) ;
if ( err < 0 ) {
print_error ( filename , err ) ;
exit_program ( 1 ) ;
}
for ( j = nb_output_streams - oc - > nb_streams ; j < nb_output_streams ; j + + ) {
ost = output_streams [ j ] ;
for ( i = 0 ; i < nb_input_streams ; i + + ) {
ist = input_streams [ i ] ;
if ( ist - > st - > codec - > codec_type = = ost - > st - > codec - > codec_type ) {
ost - > sync_ist = ist ;
ost - > source_index = i ;
if ( ost - > st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO ) ost - > avfilter = av_strdup ( " anull " ) ;
if ( ost - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO ) ost - > avfilter = av_strdup ( " null " ) ;
ist - > discard = 0 ;
ist - > st - > discard = AVDISCARD_NONE ;
break ;
}
}
if ( ! ost - > sync_ist ) {
av_log ( NULL , AV_LOG_FATAL , " Missing %s stream which is required by this ffm \n " , av_get_media_type_string ( ost - > st - > codec - > codec_type ) ) ;
exit_program ( 1 ) ;
}
2012-08-01 16:23:12 +00:00
}
2012-08-08 22:26:38 +00:00
} else if ( ! o - > nb_stream_maps ) {
/* pick the "best" stream of each type */
2012-08-01 16:23:12 +00:00
/* video: highest resolution */
if ( ! o - > video_disable & & oc - > oformat - > video_codec ! = AV_CODEC_ID_NONE ) {
int area = 0 , idx = - 1 ;
2012-08-04 17:00:11 +00:00
int qcr = avformat_query_codec ( oc - > oformat , oc - > oformat - > video_codec , 0 ) ;
2012-08-01 16:23:12 +00:00
for ( i = 0 ; i < nb_input_streams ; i + + ) {
ist = input_streams [ i ] ;
if ( ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO & &
ist - > st - > codec - > width * ist - > st - > codec - > height > area ) {
2012-08-04 17:00:11 +00:00
if ( ( qcr = = MKTAG ( ' A ' , ' P ' , ' I ' , ' C ' ) ) & & ! ( ist - > st - > disposition & AV_DISPOSITION_ATTACHED_PIC ) )
continue ;
2012-08-01 16:23:12 +00:00
area = ist - > st - > codec - > width * ist - > st - > codec - > height ;
idx = i ;
}
}
2012-08-08 22:26:38 +00:00
if ( idx > = 0 )
new_video_stream ( o , oc , idx ) ;
2012-08-01 16:23:12 +00:00
}
/* audio: most channels */
if ( ! o - > audio_disable & & oc - > oformat - > audio_codec ! = AV_CODEC_ID_NONE ) {
int channels = 0 , idx = - 1 ;
for ( i = 0 ; i < nb_input_streams ; i + + ) {
ist = input_streams [ i ] ;
if ( ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO & &
ist - > st - > codec - > channels > channels ) {
channels = ist - > st - > codec - > channels ;
idx = i ;
}
}
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if ( idx > = 0 )
new_audio_stream ( o , oc , idx ) ;
2012-08-01 16:23:12 +00:00
}
/* subtitles: pick first */
2012-08-08 22:26:38 +00:00
if ( ! o - > subtitle_disable & & ( oc - > oformat - > subtitle_codec ! = AV_CODEC_ID_NONE | | subtitle_codec_name ) ) {
2012-08-01 16:23:12 +00:00
for ( i = 0 ; i < nb_input_streams ; i + + )
if ( input_streams [ i ] - > st - > codec - > codec_type = = AVMEDIA_TYPE_SUBTITLE ) {
2012-08-08 22:26:38 +00:00
new_subtitle_stream ( o , oc , i ) ;
2012-08-01 16:23:12 +00:00
break ;
}
}
/* do something with data? */
} else {
for ( i = 0 ; i < o - > nb_stream_maps ; i + + ) {
StreamMap * map = & o - > stream_maps [ i ] ;
2012-08-08 22:26:38 +00:00
int src_idx = input_files [ map - > file_index ] - > ist_index + map - > stream_index ;
2012-08-01 16:23:12 +00:00
if ( map - > disabled )
continue ;
if ( map - > linklabel ) {
FilterGraph * fg ;
OutputFilter * ofilter = NULL ;
int j , k ;
for ( j = 0 ; j < nb_filtergraphs ; j + + ) {
fg = filtergraphs [ j ] ;
for ( k = 0 ; k < fg - > nb_outputs ; k + + ) {
AVFilterInOut * out = fg - > outputs [ k ] - > out_tmp ;
if ( out & & ! strcmp ( out - > name , map - > linklabel ) ) {
ofilter = fg - > outputs [ k ] ;
goto loop_end ;
}
}
}
loop_end :
if ( ! ofilter ) {
av_log ( NULL , AV_LOG_FATAL , " Output with label '%s' does not exist "
" in any defined filter graph. \n " , map - > linklabel ) ;
exit_program ( 1 ) ;
}
init_output_filter ( ofilter , o , oc ) ;
} else {
ist = input_streams [ input_files [ map - > file_index ] - > ist_index + map - > stream_index ] ;
2012-08-08 22:26:38 +00:00
if ( o - > subtitle_disable & & ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_SUBTITLE )
continue ;
if ( o - > audio_disable & & ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO )
continue ;
if ( o - > video_disable & & ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO )
continue ;
if ( o - > data_disable & & ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_DATA )
continue ;
2012-08-01 16:23:12 +00:00
switch ( ist - > st - > codec - > codec_type ) {
2012-08-08 22:26:38 +00:00
case AVMEDIA_TYPE_VIDEO : ost = new_video_stream ( o , oc , src_idx ) ; break ;
case AVMEDIA_TYPE_AUDIO : ost = new_audio_stream ( o , oc , src_idx ) ; break ;
case AVMEDIA_TYPE_SUBTITLE : ost = new_subtitle_stream ( o , oc , src_idx ) ; break ;
case AVMEDIA_TYPE_DATA : ost = new_data_stream ( o , oc , src_idx ) ; break ;
case AVMEDIA_TYPE_ATTACHMENT : ost = new_attachment_stream ( o , oc , src_idx ) ; break ;
2012-08-01 16:23:12 +00:00
default :
av_log ( NULL , AV_LOG_FATAL , " Cannot map stream #%d:%d - unsupported type. \n " ,
map - > file_index , map - > stream_index ) ;
exit_program ( 1 ) ;
}
}
}
}
2012-08-08 22:26:38 +00:00
for ( i = nb_output_streams - oc - > nb_streams ; i < nb_output_streams ; i + + ) { //for all streams of this output file
AVDictionaryEntry * e ;
ost = output_streams [ i ] ;
if ( ost - > stream_copy
& & ( e = av_dict_get ( codec_opts , " flags " , NULL , AV_DICT_IGNORE_SUFFIX ) )
& & ( ! e - > key [ 5 ] | | check_stream_specifier ( oc , ost - > st , e - > key + 6 ) ) )
if ( av_opt_set ( ost - > st - > codec , " flags " , e - > value , 0 ) < 0 )
exit_program ( 1 ) ;
}
2012-08-01 16:23:12 +00:00
/* handle attached files */
for ( i = 0 ; i < o - > nb_attachments ; i + + ) {
AVIOContext * pb ;
uint8_t * attachment ;
const char * p ;
int64_t len ;
if ( ( err = avio_open2 ( & pb , o - > attachments [ i ] , AVIO_FLAG_READ , & int_cb , NULL ) ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Could not open attachment file %s. \n " ,
o - > attachments [ i ] ) ;
exit_program ( 1 ) ;
}
if ( ( len = avio_size ( pb ) ) < = 0 ) {
av_log ( NULL , AV_LOG_FATAL , " Could not get size of the attachment %s. \n " ,
o - > attachments [ i ] ) ;
exit_program ( 1 ) ;
}
if ( ! ( attachment = av_malloc ( len ) ) ) {
av_log ( NULL , AV_LOG_FATAL , " Attachment %s too large to fit into memory. \n " ,
o - > attachments [ i ] ) ;
exit_program ( 1 ) ;
}
avio_read ( pb , attachment , len ) ;
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ost = new_attachment_stream ( o , oc , - 1 ) ;
2012-08-01 16:23:12 +00:00
ost - > stream_copy = 0 ;
ost - > attachment_filename = o - > attachments [ i ] ;
ost - > st - > codec - > extradata = attachment ;
ost - > st - > codec - > extradata_size = len ;
p = strrchr ( o - > attachments [ i ] , ' / ' ) ;
av_dict_set ( & ost - > st - > metadata , " filename " , ( p & & * p ) ? p + 1 : o - > attachments [ i ] , AV_DICT_DONT_OVERWRITE ) ;
avio_close ( pb ) ;
}
output_files = grow_array ( output_files , sizeof ( * output_files ) , & nb_output_files , nb_output_files + 1 ) ;
if ( ! ( output_files [ nb_output_files - 1 ] = av_mallocz ( sizeof ( * output_files [ 0 ] ) ) ) )
exit_program ( 1 ) ;
output_files [ nb_output_files - 1 ] - > ctx = oc ;
output_files [ nb_output_files - 1 ] - > ost_index = nb_output_streams - oc - > nb_streams ;
output_files [ nb_output_files - 1 ] - > recording_time = o - > recording_time ;
if ( o - > recording_time ! = INT64_MAX )
oc - > duration = o - > recording_time ;
output_files [ nb_output_files - 1 ] - > start_time = o - > start_time ;
output_files [ nb_output_files - 1 ] - > limit_filesize = o - > limit_filesize ;
av_dict_copy ( & output_files [ nb_output_files - 1 ] - > opts , format_opts , 0 ) ;
/* check filename in case of an image number is expected */
if ( oc - > oformat - > flags & AVFMT_NEEDNUMBER ) {
if ( ! av_filename_number_test ( oc - > filename ) ) {
print_error ( oc - > filename , AVERROR ( EINVAL ) ) ;
exit_program ( 1 ) ;
}
}
if ( ! ( oc - > oformat - > flags & AVFMT_NOFILE ) ) {
/* test if it already exists to avoid losing precious files */
assert_file_overwrite ( filename ) ;
/* open the file */
if ( ( err = avio_open2 ( & oc - > pb , filename , AVIO_FLAG_WRITE ,
& oc - > interrupt_callback ,
& output_files [ nb_output_files - 1 ] - > opts ) ) < 0 ) {
print_error ( filename , err ) ;
exit_program ( 1 ) ;
}
}
if ( o - > mux_preload ) {
uint8_t buf [ 64 ] ;
snprintf ( buf , sizeof ( buf ) , " %d " , ( int ) ( o - > mux_preload * AV_TIME_BASE ) ) ;
av_dict_set ( & output_files [ nb_output_files - 1 ] - > opts , " preload " , buf , 0 ) ;
}
oc - > max_delay = ( int ) ( o - > mux_max_delay * AV_TIME_BASE ) ;
/* copy metadata */
for ( i = 0 ; i < o - > nb_metadata_map ; i + + ) {
char * p ;
int in_file_index = strtol ( o - > metadata_map [ i ] . u . str , & p , 0 ) ;
if ( in_file_index > = nb_input_files ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid input file index %d while processing metadata maps \n " , in_file_index ) ;
exit_program ( 1 ) ;
}
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copy_metadata ( o - > metadata_map [ i ] . specifier , * p ? p + 1 : p , oc , in_file_index > = 0 ? input_files [ in_file_index ] - > ctx : NULL , o ) ;
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}
/* copy chapters */
if ( o - > chapters_input_file > = nb_input_files ) {
if ( o - > chapters_input_file = = INT_MAX ) {
/* copy chapters from the first input file that has them*/
o - > chapters_input_file = - 1 ;
for ( i = 0 ; i < nb_input_files ; i + + )
if ( input_files [ i ] - > ctx - > nb_chapters ) {
o - > chapters_input_file = i ;
break ;
}
} else {
av_log ( NULL , AV_LOG_FATAL , " Invalid input file index %d in chapter mapping. \n " ,
o - > chapters_input_file ) ;
exit_program ( 1 ) ;
}
}
if ( o - > chapters_input_file > = 0 )
copy_chapters ( input_files [ o - > chapters_input_file ] , output_files [ nb_output_files - 1 ] ,
! o - > metadata_chapters_manual ) ;
/* copy global metadata by default */
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if ( ! o - > metadata_global_manual & & nb_input_files ) {
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av_dict_copy ( & oc - > metadata , input_files [ 0 ] - > ctx - > metadata ,
AV_DICT_DONT_OVERWRITE ) ;
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if ( o - > recording_time ! = INT64_MAX )
av_dict_set ( & oc - > metadata , " duration " , NULL , 0 ) ;
av_dict_set ( & oc - > metadata , " creation_time " , NULL , 0 ) ;
}
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if ( ! o - > metadata_streams_manual )
for ( i = output_files [ nb_output_files - 1 ] - > ost_index ; i < nb_output_streams ; i + + ) {
InputStream * ist ;
if ( output_streams [ i ] - > source_index < 0 ) /* this is true e.g. for attached files */
continue ;
ist = input_streams [ output_streams [ i ] - > source_index ] ;
av_dict_copy ( & output_streams [ i ] - > st - > metadata , ist - > st - > metadata , AV_DICT_DONT_OVERWRITE ) ;
}
/* process manually set metadata */
for ( i = 0 ; i < o - > nb_metadata ; i + + ) {
AVDictionary * * m ;
char type , * val ;
const char * stream_spec ;
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int index = 0 , j , ret = 0 ;
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val = strchr ( o - > metadata [ i ] . u . str , ' = ' ) ;
if ( ! val ) {
av_log ( NULL , AV_LOG_FATAL , " No '=' character in metadata string %s. \n " ,
o - > metadata [ i ] . u . str ) ;
exit_program ( 1 ) ;
}
* val + + = 0 ;
parse_meta_type ( o - > metadata [ i ] . specifier , & type , & index , & stream_spec ) ;
if ( type = = ' s ' ) {
for ( j = 0 ; j < oc - > nb_streams ; j + + ) {
if ( ( ret = check_stream_specifier ( oc , oc - > streams [ j ] , stream_spec ) ) > 0 ) {
av_dict_set ( & oc - > streams [ j ] - > metadata , o - > metadata [ i ] . u . str , * val ? val : NULL , 0 ) ;
} else if ( ret < 0 )
exit_program ( 1 ) ;
}
}
else {
switch ( type ) {
case ' g ' :
m = & oc - > metadata ;
break ;
case ' c ' :
if ( index < 0 | | index > = oc - > nb_chapters ) {
av_log ( NULL , AV_LOG_FATAL , " Invalid chapter index %d in metadata specifier. \n " , index ) ;
exit_program ( 1 ) ;
}
m = & oc - > chapters [ index ] - > metadata ;
break ;
default :
av_log ( NULL , AV_LOG_FATAL , " Invalid metadata specifier %s. \n " , o - > metadata [ i ] . specifier ) ;
exit_program ( 1 ) ;
}
av_dict_set ( m , o - > metadata [ i ] . u . str , * val ? val : NULL , 0 ) ;
}
}
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reset_options ( o , 0 ) ;
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}
/* same option as mencoder */
static int opt_pass ( const char * opt , const char * arg )
{
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do_pass = parse_number_or_die ( opt , arg , OPT_INT , 1 , 3 ) ;
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return 0 ;
}
static int opt_target ( OptionsContext * o , const char * opt , const char * arg )
{
enum { PAL , NTSC , FILM , UNKNOWN } norm = UNKNOWN ;
static const char * const frame_rates [ ] = { " 25 " , " 30000/1001 " , " 24000/1001 " } ;
if ( ! strncmp ( arg , " pal- " , 4 ) ) {
norm = PAL ;
arg + = 4 ;
} else if ( ! strncmp ( arg , " ntsc- " , 5 ) ) {
norm = NTSC ;
arg + = 5 ;
} else if ( ! strncmp ( arg , " film- " , 5 ) ) {
norm = FILM ;
arg + = 5 ;
} else {
/* Try to determine PAL/NTSC by peeking in the input files */
if ( nb_input_files ) {
int i , j , fr ;
for ( j = 0 ; j < nb_input_files ; j + + ) {
for ( i = 0 ; i < input_files [ j ] - > nb_streams ; i + + ) {
AVCodecContext * c = input_files [ j ] - > ctx - > streams [ i ] - > codec ;
if ( c - > codec_type ! = AVMEDIA_TYPE_VIDEO )
continue ;
fr = c - > time_base . den * 1000 / c - > time_base . num ;
if ( fr = = 25000 ) {
norm = PAL ;
break ;
} else if ( ( fr = = 29970 ) | | ( fr = = 23976 ) ) {
norm = NTSC ;
break ;
}
}
if ( norm ! = UNKNOWN )
break ;
}
}
if ( norm ! = UNKNOWN )
av_log ( NULL , AV_LOG_INFO , " Assuming %s for target. \n " , norm = = PAL ? " PAL " : " NTSC " ) ;
}
if ( norm = = UNKNOWN ) {
av_log ( NULL , AV_LOG_FATAL , " Could not determine norm (PAL/NTSC/NTSC-Film) for target. \n " ) ;
av_log ( NULL , AV_LOG_FATAL , " Please prefix target with \" pal- \" , \" ntsc- \" or \" film- \" , \n " ) ;
av_log ( NULL , AV_LOG_FATAL , " or set a framerate with \" -r xxx \" . \n " ) ;
exit_program ( 1 ) ;
}
if ( ! strcmp ( arg , " vcd " ) ) {
opt_video_codec ( o , " c:v " , " mpeg1video " ) ;
opt_audio_codec ( o , " c:a " , " mp2 " ) ;
parse_option ( o , " f " , " vcd " , options ) ;
parse_option ( o , " s " , norm = = PAL ? " 352x288 " : " 352x240 " , options ) ;
parse_option ( o , " r " , frame_rates [ norm ] , options ) ;
opt_default ( " g " , norm = = PAL ? " 15 " : " 18 " ) ;
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opt_default ( " b:v " , " 1150000 " ) ;
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opt_default ( " maxrate " , " 1150000 " ) ;
opt_default ( " minrate " , " 1150000 " ) ;
opt_default ( " bufsize " , " 327680 " ) ; // 40*1024*8;
opt_default ( " b:a " , " 224000 " ) ;
parse_option ( o , " ar " , " 44100 " , options ) ;
parse_option ( o , " ac " , " 2 " , options ) ;
opt_default ( " packetsize " , " 2324 " ) ;
opt_default ( " muxrate " , " 1411200 " ) ; // 2352 * 75 * 8;
/* We have to offset the PTS, so that it is consistent with the SCR.
SCR starts at 36000 , but the first two packs contain only padding
and the first pack from the other stream , respectively , may also have
been written before .
So the real data starts at SCR 36000 + 3 * 1200. */
o - > mux_preload = ( 36000 + 3 * 1200 ) / 90000.0 ; // 0.44
} else if ( ! strcmp ( arg , " svcd " ) ) {
opt_video_codec ( o , " c:v " , " mpeg2video " ) ;
opt_audio_codec ( o , " c:a " , " mp2 " ) ;
parse_option ( o , " f " , " svcd " , options ) ;
parse_option ( o , " s " , norm = = PAL ? " 480x576 " : " 480x480 " , options ) ;
parse_option ( o , " r " , frame_rates [ norm ] , options ) ;
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parse_option ( o , " pix_fmt " , " yuv420p " , options ) ;
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opt_default ( " g " , norm = = PAL ? " 15 " : " 18 " ) ;
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opt_default ( " b:v " , " 2040000 " ) ;
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opt_default ( " maxrate " , " 2516000 " ) ;
opt_default ( " minrate " , " 0 " ) ; // 1145000;
opt_default ( " bufsize " , " 1835008 " ) ; // 224*1024*8;
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opt_default ( " scan_offset " , " 1 " ) ;
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opt_default ( " b:a " , " 224000 " ) ;
parse_option ( o , " ar " , " 44100 " , options ) ;
opt_default ( " packetsize " , " 2324 " ) ;
} else if ( ! strcmp ( arg , " dvd " ) ) {
opt_video_codec ( o , " c:v " , " mpeg2video " ) ;
opt_audio_codec ( o , " c:a " , " ac3 " ) ;
parse_option ( o , " f " , " dvd " , options ) ;
parse_option ( o , " s " , norm = = PAL ? " 720x576 " : " 720x480 " , options ) ;
parse_option ( o , " r " , frame_rates [ norm ] , options ) ;
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parse_option ( o , " pix_fmt " , " yuv420p " , options ) ;
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opt_default ( " g " , norm = = PAL ? " 15 " : " 18 " ) ;
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opt_default ( " b:v " , " 6000000 " ) ;
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opt_default ( " maxrate " , " 9000000 " ) ;
opt_default ( " minrate " , " 0 " ) ; // 1500000;
opt_default ( " bufsize " , " 1835008 " ) ; // 224*1024*8;
opt_default ( " packetsize " , " 2048 " ) ; // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
opt_default ( " muxrate " , " 10080000 " ) ; // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
opt_default ( " b:a " , " 448000 " ) ;
parse_option ( o , " ar " , " 48000 " , options ) ;
} else if ( ! strncmp ( arg , " dv " , 2 ) ) {
parse_option ( o , " f " , " dv " , options ) ;
parse_option ( o , " s " , norm = = PAL ? " 720x576 " : " 720x480 " , options ) ;
parse_option ( o , " pix_fmt " , ! strncmp ( arg , " dv50 " , 4 ) ? " yuv422p " :
norm = = PAL ? " yuv420p " : " yuv411p " , options ) ;
parse_option ( o , " r " , frame_rates [ norm ] , options ) ;
parse_option ( o , " ar " , " 48000 " , options ) ;
parse_option ( o , " ac " , " 2 " , options ) ;
} else {
av_log ( NULL , AV_LOG_ERROR , " Unknown target: %s \n " , arg ) ;
return AVERROR ( EINVAL ) ;
}
return 0 ;
}
static int opt_vstats_file ( const char * opt , const char * arg )
{
av_free ( vstats_filename ) ;
vstats_filename = av_strdup ( arg ) ;
return 0 ;
}
static int opt_vstats ( const char * opt , const char * arg )
{
char filename [ 40 ] ;
time_t today2 = time ( NULL ) ;
struct tm * today = localtime ( & today2 ) ;
snprintf ( filename , sizeof ( filename ) , " vstats_%02d%02d%02d.log " , today - > tm_hour , today - > tm_min ,
today - > tm_sec ) ;
return opt_vstats_file ( opt , filename ) ;
}
static int opt_video_frames ( OptionsContext * o , const char * opt , const char * arg )
{
return parse_option ( o , " frames:v " , arg , options ) ;
}
static int opt_audio_frames ( OptionsContext * o , const char * opt , const char * arg )
{
return parse_option ( o , " frames:a " , arg , options ) ;
}
static int opt_data_frames ( OptionsContext * o , const char * opt , const char * arg )
{
return parse_option ( o , " frames:d " , arg , options ) ;
}
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static int opt_preset ( OptionsContext * o , const char * opt , const char * arg )
{
FILE * f = NULL ;
char filename [ 1000 ] , line [ 1000 ] , tmp_line [ 1000 ] ;
const char * codec_name = * opt = = ' v ' ? video_codec_name :
* opt = = ' a ' ? audio_codec_name :
subtitle_codec_name ;
if ( ! ( f = get_preset_file ( filename , sizeof ( filename ) , arg , * opt = = ' f ' , codec_name ) ) ) {
if ( ! strncmp ( arg , " libx264-lossless " , strlen ( " libx264-lossless " ) ) ) {
av_log ( NULL , AV_LOG_FATAL , " Please use -preset <speed> -qp 0 \n " ) ;
} else
av_log ( NULL , AV_LOG_FATAL , " File for preset '%s' not found \n " , arg ) ;
exit_program ( 1 ) ;
}
while ( fgets ( line , sizeof ( line ) , f ) ) {
char * key = tmp_line , * value , * endptr ;
if ( strcspn ( line , " # \n \r " ) = = 0 )
continue ;
strcpy ( tmp_line , line ) ;
if ( ! av_strtok ( key , " = " , & value ) | |
! av_strtok ( value , " \r \n " , & endptr ) ) {
av_log ( NULL , AV_LOG_FATAL , " %s: Invalid syntax: '%s' \n " , filename , line ) ;
exit_program ( 1 ) ;
}
av_log ( NULL , AV_LOG_DEBUG , " ffpreset[%s]: set '%s' = '%s' \n " , filename , key , value ) ;
if ( ! strcmp ( key , " acodec " ) ) opt_audio_codec ( o , key , value ) ;
else if ( ! strcmp ( key , " vcodec " ) ) opt_video_codec ( o , key , value ) ;
else if ( ! strcmp ( key , " scodec " ) ) opt_subtitle_codec ( o , key , value ) ;
else if ( ! strcmp ( key , " dcodec " ) ) opt_data_codec ( o , key , value ) ;
else if ( opt_default ( key , value ) < 0 ) {
av_log ( NULL , AV_LOG_FATAL , " %s: Invalid option or argument: '%s', parsed as '%s' = '%s' \n " ,
filename , line , key , value ) ;
exit_program ( 1 ) ;
}
}
fclose ( f ) ;
return 0 ;
}
static int opt_passlogfile ( const char * opt , const char * arg )
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{
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pass_logfilename_prefix = arg ;
# if CONFIG_LIBX264_ENCODER
return opt_default ( opt , arg ) ;
# else
return 0 ;
# endif
}
static int opt_old2new ( OptionsContext * o , const char * opt , const char * arg )
{
char * s = av_asprintf ( " %s:%c " , opt + 1 , * opt ) ;
int ret = parse_option ( o , s , arg , options ) ;
av_free ( s ) ;
return ret ;
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}
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static int opt_bitrate ( OptionsContext * o , const char * opt , const char * arg )
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{
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if ( ! strcmp ( opt , " b " ) ) {
av_log ( NULL , AV_LOG_WARNING , " Please use -b:a or -b:v, -b is ambiguous \n " ) ;
return parse_option ( o , " b:v " , arg , options ) ;
}
return opt_default ( opt , arg ) ;
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}
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static int opt_qscale ( OptionsContext * o , const char * opt , const char * arg )
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{
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char * s ;
int ret ;
if ( ! strcmp ( opt , " qscale " ) ) {
av_log ( NULL , AV_LOG_WARNING , " Please use -q:a or -q:v, -qscale is ambiguous \n " ) ;
return parse_option ( o , " q:v " , arg , options ) ;
}
s = av_asprintf ( " q%s " , opt + 6 ) ;
ret = parse_option ( o , s , arg , options ) ;
av_free ( s ) ;
return ret ;
}
static int opt_profile ( OptionsContext * o , const char * opt , const char * arg )
{
if ( ! strcmp ( opt , " profile " ) ) {
av_log ( NULL , AV_LOG_WARNING , " Please use -profile:a or -profile:v, -profile is ambiguous \n " ) ;
return parse_option ( o , " profile:v " , arg , options ) ;
}
return opt_default ( opt , arg ) ;
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}
static int opt_video_filters ( OptionsContext * o , const char * opt , const char * arg )
{
return parse_option ( o , " filter:v " , arg , options ) ;
}
static int opt_audio_filters ( OptionsContext * o , const char * opt , const char * arg )
{
return parse_option ( o , " filter:a " , arg , options ) ;
}
static int opt_vsync ( const char * opt , const char * arg )
{
if ( ! av_strcasecmp ( arg , " cfr " ) ) video_sync_method = VSYNC_CFR ;
else if ( ! av_strcasecmp ( arg , " vfr " ) ) video_sync_method = VSYNC_VFR ;
else if ( ! av_strcasecmp ( arg , " passthrough " ) ) video_sync_method = VSYNC_PASSTHROUGH ;
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else if ( ! av_strcasecmp ( arg , " drop " ) ) video_sync_method = VSYNC_DROP ;
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if ( video_sync_method = = VSYNC_AUTO )
video_sync_method = parse_number_or_die ( " vsync " , arg , OPT_INT , VSYNC_AUTO , VSYNC_VFR ) ;
return 0 ;
}
static int opt_deinterlace ( const char * opt , const char * arg )
{
av_log ( NULL , AV_LOG_WARNING , " -%s is deprecated, use -filter:v yadif instead \n " , opt ) ;
do_deinterlace = 1 ;
return 0 ;
}
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static int opt_timecode ( OptionsContext * o , const char * opt , const char * arg )
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{
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char * tcr = av_asprintf ( " timecode=%s " , arg ) ;
int ret = parse_option ( o , " metadata:g " , tcr , options ) ;
if ( ret > = 0 )
ret = opt_default ( " gop_timecode " , arg ) ;
av_free ( tcr ) ;
return ret ;
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}
static int opt_channel_layout ( OptionsContext * o , const char * opt , const char * arg )
{
char layout_str [ 32 ] ;
char * stream_str ;
char * ac_str ;
int ret , channels , ac_str_size ;
uint64_t layout ;
layout = av_get_channel_layout ( arg ) ;
if ( ! layout ) {
av_log ( NULL , AV_LOG_ERROR , " Unknown channel layout: %s \n " , arg ) ;
return AVERROR ( EINVAL ) ;
}
snprintf ( layout_str , sizeof ( layout_str ) , " % " PRIu64 , layout ) ;
ret = opt_default ( opt , layout_str ) ;
if ( ret < 0 )
return ret ;
/* set 'ac' option based on channel layout */
channels = av_get_channel_layout_nb_channels ( layout ) ;
snprintf ( layout_str , sizeof ( layout_str ) , " %d " , channels ) ;
stream_str = strchr ( opt , ' : ' ) ;
ac_str_size = 3 + ( stream_str ? strlen ( stream_str ) : 0 ) ;
ac_str = av_mallocz ( ac_str_size ) ;
if ( ! ac_str )
return AVERROR ( ENOMEM ) ;
av_strlcpy ( ac_str , " ac " , 3 ) ;
if ( stream_str )
av_strlcat ( ac_str , stream_str , ac_str_size ) ;
ret = parse_option ( o , ac_str , layout_str , options ) ;
av_free ( ac_str ) ;
return ret ;
}
static int opt_audio_qscale ( OptionsContext * o , const char * opt , const char * arg )
{
return parse_option ( o , " q:a " , arg , options ) ;
}
static int opt_filter_complex ( const char * opt , const char * arg )
{
filtergraphs = grow_array ( filtergraphs , sizeof ( * filtergraphs ) ,
& nb_filtergraphs , nb_filtergraphs + 1 ) ;
if ( ! ( filtergraphs [ nb_filtergraphs - 1 ] = av_mallocz ( sizeof ( * filtergraphs [ 0 ] ) ) ) )
return AVERROR ( ENOMEM ) ;
filtergraphs [ nb_filtergraphs - 1 ] - > index = nb_filtergraphs - 1 ;
filtergraphs [ nb_filtergraphs - 1 ] - > graph_desc = arg ;
return 0 ;
}
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static int opt_help ( const char * opt , const char * arg )
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{
int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM ;
av_log_set_callback ( log_callback_help ) ;
show_usage ( ) ;
show_help_options ( options , " Main options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB , 0 ) ;
show_help_options ( options , " \n Advanced options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB ,
OPT_EXPERT ) ;
show_help_options ( options , " \n Video options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB ,
OPT_VIDEO ) ;
show_help_options ( options , " \n Advanced Video options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB ,
OPT_VIDEO | OPT_EXPERT ) ;
show_help_options ( options , " \n Audio options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB ,
OPT_AUDIO ) ;
show_help_options ( options , " \n Advanced Audio options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB ,
OPT_AUDIO | OPT_EXPERT ) ;
show_help_options ( options , " \n Subtitle options: \n " ,
OPT_SUBTITLE | OPT_GRAB ,
OPT_SUBTITLE ) ;
show_help_options ( options , " \n Audio/Video grab options: \n " ,
OPT_GRAB ,
OPT_GRAB ) ;
printf ( " \n " ) ;
show_help_children ( avcodec_get_class ( ) , flags ) ;
show_help_children ( avformat_get_class ( ) , flags ) ;
show_help_children ( sws_get_class ( ) , flags ) ;
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show_help_children ( swr_get_class ( ) , AV_OPT_FLAG_AUDIO_PARAM ) ;
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show_help_children ( avfilter_get_class ( ) , AV_OPT_FLAG_FILTERING_PARAM ) ;
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return 0 ;
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}
void show_usage ( void )
{
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av_log ( NULL , AV_LOG_INFO , " Hyper fast Audio and Video encoder \n " ) ;
av_log ( NULL , AV_LOG_INFO , " usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}... \n " , program_name ) ;
av_log ( NULL , AV_LOG_INFO , " \n " ) ;
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}
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static int opt_progress ( const char * opt , const char * arg )
{
AVIOContext * avio = NULL ;
int ret ;
if ( ! strcmp ( arg , " - " ) )
arg = " pipe: " ;
ret = avio_open2 ( & avio , arg , AVIO_FLAG_WRITE , & int_cb , NULL ) ;
if ( ret < 0 ) {
av_log ( 0 , AV_LOG_ERROR , " Failed to open progress URL \" %s \" : %s \n " ,
arg , av_err2str ( ret ) ) ;
return ret ;
}
progress_avio = avio ;
return 0 ;
}
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# define OFFSET(x) offsetof(OptionsContext, x)
const OptionDef options [ ] = {
/* main options */
# include "cmdutils_common_opts.h"
{ " f " , HAS_ARG | OPT_STRING | OPT_OFFSET , { . off = OFFSET ( format ) } , " force format " , " fmt " } ,
{ " i " , HAS_ARG | OPT_FUNC2 , { ( void * ) opt_input_file } , " input file name " , " filename " } ,
{ " y " , OPT_BOOL , { ( void * ) & file_overwrite } , " overwrite output files " } ,
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{ " n " , OPT_BOOL , { ( void * ) & no_file_overwrite } , " do not overwrite output files " } ,
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{ " c " , HAS_ARG | OPT_STRING | OPT_SPEC , { . off = OFFSET ( codec_names ) } , " codec name " , " codec " } ,
{ " codec " , HAS_ARG | OPT_STRING | OPT_SPEC , { . off = OFFSET ( codec_names ) } , " codec name " , " codec " } ,
{ " pre " , HAS_ARG | OPT_STRING | OPT_SPEC , { . off = OFFSET ( presets ) } , " preset name " , " preset " } ,
{ " map " , HAS_ARG | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_map } , " set input stream mapping " , " [-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]] " } ,
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{ " map_channel " , HAS_ARG | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_map_channel } , " map an audio channel from one stream to another " , " file.stream.channel[:syncfile.syncstream] " } ,
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{ " map_metadata " , HAS_ARG | OPT_STRING | OPT_SPEC , { . off = OFFSET ( metadata_map ) } , " set metadata information of outfile from infile " ,
" outfile[,metadata]:infile[,metadata] " } ,
{ " map_chapters " , OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET , { . off = OFFSET ( chapters_input_file ) } , " set chapters mapping " , " input_file_index " } ,
{ " t " , HAS_ARG | OPT_TIME | OPT_OFFSET , { . off = OFFSET ( recording_time ) } , " record or transcode \" duration \" seconds of audio/video " , " duration " } ,
{ " fs " , HAS_ARG | OPT_INT64 | OPT_OFFSET , { . off = OFFSET ( limit_filesize ) } , " set the limit file size in bytes " , " limit_size " } , //
{ " ss " , HAS_ARG | OPT_TIME | OPT_OFFSET , { . off = OFFSET ( start_time ) } , " set the start time offset " , " time_off " } ,
{ " itsoffset " , HAS_ARG | OPT_TIME | OPT_OFFSET , { . off = OFFSET ( input_ts_offset ) } , " set the input ts offset " , " time_off " } ,
{ " itsscale " , HAS_ARG | OPT_DOUBLE | OPT_SPEC , { . off = OFFSET ( ts_scale ) } , " set the input ts scale " , " scale " } ,
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{ " timestamp " , HAS_ARG | OPT_FUNC2 , { ( void * ) opt_recording_timestamp } , " set the recording timestamp ('now' to set the current time) " , " time " } ,
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{ " metadata " , HAS_ARG | OPT_STRING | OPT_SPEC , { . off = OFFSET ( metadata ) } , " add metadata " , " string=string " } ,
{ " dframes " , HAS_ARG | OPT_FUNC2 , { ( void * ) opt_data_frames } , " set the number of data frames to record " , " number " } ,
{ " benchmark " , OPT_BOOL | OPT_EXPERT , { ( void * ) & do_benchmark } ,
" add timings for benchmarking " } ,
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{ " benchmark_all " , OPT_BOOL | OPT_EXPERT , { ( void * ) & do_benchmark_all } ,
" add timings for each task " } ,
{ " progress " , HAS_ARG | OPT_EXPERT , { ( void * ) opt_progress } ,
" write program-readable progress information " , " url " } ,
{ " stdin " , OPT_BOOL | OPT_EXPERT , { ( void * ) & stdin_interaction } ,
" enable or disable interaction on standard input " } ,
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{ " timelimit " , HAS_ARG , { ( void * ) opt_timelimit } , " set max runtime in seconds " , " limit " } ,
{ " dump " , OPT_BOOL | OPT_EXPERT , { ( void * ) & do_pkt_dump } ,
" dump each input packet " } ,
{ " hex " , OPT_BOOL | OPT_EXPERT , { ( void * ) & do_hex_dump } ,
" when dumping packets, also dump the payload " } ,
{ " re " , OPT_BOOL | OPT_EXPERT | OPT_OFFSET , { . off = OFFSET ( rate_emu ) } , " read input at native frame rate " , " " } ,
{ " target " , HAS_ARG | OPT_FUNC2 , { ( void * ) opt_target } , " specify target file type ( \" vcd \" , \" svcd \" , \" dvd \" , \" dv \" , \" dv50 \" , \" pal-vcd \" , \" ntsc-svcd \" , ...) " , " type " } ,
{ " vsync " , HAS_ARG | OPT_EXPERT , { ( void * ) opt_vsync } , " video sync method " , " " } ,
{ " async " , HAS_ARG | OPT_INT | OPT_EXPERT , { ( void * ) & audio_sync_method } , " audio sync method " , " " } ,
{ " adrift_threshold " , HAS_ARG | OPT_FLOAT | OPT_EXPERT , { ( void * ) & audio_drift_threshold } , " audio drift threshold " , " threshold " } ,
{ " copyts " , OPT_BOOL | OPT_EXPERT , { ( void * ) & copy_ts } , " copy timestamps " } ,
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{ " copytb " , HAS_ARG | OPT_INT | OPT_EXPERT , { ( void * ) & copy_tb } , " copy input stream time base when stream copying " , " mode " } ,
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{ " shortest " , OPT_BOOL | OPT_EXPERT , { ( void * ) & opt_shortest } , " finish encoding within shortest input " } , //
{ " dts_delta_threshold " , HAS_ARG | OPT_FLOAT | OPT_EXPERT , { ( void * ) & dts_delta_threshold } , " timestamp discontinuity delta threshold " , " threshold " } ,
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{ " dts_error_threshold " , HAS_ARG | OPT_FLOAT | OPT_EXPERT , { ( void * ) & dts_error_threshold } , " timestamp error delta threshold " , " threshold " } ,
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{ " xerror " , OPT_BOOL , { ( void * ) & exit_on_error } , " exit on error " , " error " } ,
{ " copyinkf " , OPT_BOOL | OPT_EXPERT | OPT_SPEC , { . off = OFFSET ( copy_initial_nonkeyframes ) } , " copy initial non-keyframes " } ,
{ " frames " , OPT_INT64 | HAS_ARG | OPT_SPEC , { . off = OFFSET ( max_frames ) } , " set the number of frames to record " , " number " } ,
{ " tag " , OPT_STRING | HAS_ARG | OPT_SPEC , { . off = OFFSET ( codec_tags ) } , " force codec tag/fourcc " , " fourcc/tag " } ,
{ " q " , HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC , { . off = OFFSET ( qscale ) } , " use fixed quality scale (VBR) " , " q " } ,
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{ " qscale " , HAS_ARG | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_qscale } , " use fixed quality scale (VBR) " , " q " } ,
{ " profile " , HAS_ARG | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_profile } , " set profile " , " profile " } ,
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{ " filter " , HAS_ARG | OPT_STRING | OPT_SPEC , { . off = OFFSET ( filters ) } , " set stream filterchain " , " filter_list " } ,
{ " filter_complex " , HAS_ARG | OPT_EXPERT , { ( void * ) opt_filter_complex } , " create a complex filtergraph " , " graph_description " } ,
{ " stats " , OPT_BOOL , { & print_stats } , " print progress report during encoding " , } ,
{ " attach " , HAS_ARG | OPT_FUNC2 , { ( void * ) opt_attach } , " add an attachment to the output file " , " filename " } ,
{ " dump_attachment " , HAS_ARG | OPT_STRING | OPT_SPEC , { . off = OFFSET ( dump_attachment ) } , " extract an attachment into a file " , " filename " } ,
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{ " debug_ts " , OPT_BOOL | OPT_EXPERT , { & debug_ts } , " print timestamp debugging info " } ,
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/* video options */
{ " vframes " , HAS_ARG | OPT_VIDEO | OPT_FUNC2 , { ( void * ) opt_video_frames } , " set the number of video frames to record " , " number " } ,
{ " r " , HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC , { . off = OFFSET ( frame_rates ) } , " set frame rate (Hz value, fraction or abbreviation) " , " rate " } ,
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{ " s " , HAS_ARG | OPT_VIDEO | OPT_SUBTITLE | OPT_STRING | OPT_SPEC , { . off = OFFSET ( frame_sizes ) } , " set frame size (WxH or abbreviation) " , " size " } ,
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{ " aspect " , HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC , { . off = OFFSET ( frame_aspect_ratios ) } , " set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) " , " aspect " } ,
{ " pix_fmt " , HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC , { . off = OFFSET ( frame_pix_fmts ) } , " set pixel format " , " format " } ,
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{ " bits_per_raw_sample " , OPT_INT | HAS_ARG | OPT_VIDEO , { ( void * ) & frame_bits_per_raw_sample } , " set the number of bits per raw sample " , " number " } ,
{ " croptop " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_crop } , " Removed, use the crop filter instead " , " size " } ,
{ " cropbottom " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_crop } , " Removed, use the crop filter instead " , " size " } ,
{ " cropleft " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_crop } , " Removed, use the crop filter instead " , " size " } ,
{ " cropright " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_crop } , " Removed, use the crop filter instead " , " size " } ,
{ " padtop " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " size " } ,
{ " padbottom " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " size " } ,
{ " padleft " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " size " } ,
{ " padright " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " size " } ,
{ " padcolor " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " color " } ,
{ " intra " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO , { ( void * ) & intra_only } , " deprecated use -g 1 " } ,
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{ " vn " , OPT_BOOL | OPT_VIDEO | OPT_OFFSET , { . off = OFFSET ( video_disable ) } , " disable video " } ,
{ " vdt " , OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) & video_discard } , " discard threshold " , " n " } ,
{ " rc_override " , HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC , { . off = OFFSET ( rc_overrides ) } , " rate control override for specific intervals " , " override " } ,
{ " vcodec " , HAS_ARG | OPT_VIDEO | OPT_FUNC2 , { ( void * ) opt_video_codec } , " force video codec ('copy' to copy stream) " , " codec " } ,
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{ " sameq " , OPT_BOOL | OPT_VIDEO , { ( void * ) & same_quant } , " use same quantizer as source (implies VBR) " } ,
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{ " same_quant " , OPT_BOOL | OPT_VIDEO , { ( void * ) & same_quant } ,
" use same quantizer as source (implies VBR) " } ,
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{ " timecode " , HAS_ARG | OPT_VIDEO | OPT_FUNC2 , { ( void * ) opt_timecode } , " set initial TimeCode value. " , " hh:mm:ss[:;.]ff " } ,
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{ " pass " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pass } , " select the pass number (1 or 2) " , " n " } ,
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{ " passlogfile " , HAS_ARG | OPT_VIDEO , { ( void * ) & opt_passlogfile } , " select two pass log file name prefix " , " prefix " } ,
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{ " deinterlace " , OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_deinterlace } ,
" this option is deprecated, use the yadif filter instead " } ,
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{ " psnr " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO , { ( void * ) & do_psnr } , " calculate PSNR of compressed frames " } ,
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{ " vstats " , OPT_EXPERT | OPT_VIDEO , { ( void * ) & opt_vstats } , " dump video coding statistics to file " } ,
{ " vstats_file " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_vstats_file } , " dump video coding statistics to file " , " file " } ,
{ " vf " , HAS_ARG | OPT_VIDEO | OPT_FUNC2 , { ( void * ) opt_video_filters } , " video filters " , " filter list " } ,
{ " intra_matrix " , HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC , { . off = OFFSET ( intra_matrices ) } , " specify intra matrix coeffs " , " matrix " } ,
{ " inter_matrix " , HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC , { . off = OFFSET ( inter_matrices ) } , " specify inter matrix coeffs " , " matrix " } ,
{ " top " , HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT | OPT_SPEC , { . off = OFFSET ( top_field_first ) } , " top=1/bottom=0/auto=-1 field first " , " " } ,
{ " dc " , OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) & intra_dc_precision } , " intra_dc_precision " , " precision " } ,
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{ " vtag " , HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2 , { ( void * ) opt_old2new } , " force video tag/fourcc " , " fourcc/tag " } ,
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{ " qphist " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO , { ( void * ) & qp_hist } , " show QP histogram " } ,
{ " force_fps " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC , { . off = OFFSET ( force_fps ) } , " force the selected framerate, disable the best supported framerate selection " } ,
{ " streamid " , HAS_ARG | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_streamid } , " set the value of an outfile streamid " , " streamIndex:value " } ,
{ " force_key_frames " , OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC , { . off = OFFSET ( forced_key_frames ) } , " force key frames at specified timestamps " , " timestamps " } ,
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{ " b " , HAS_ARG | OPT_VIDEO | OPT_FUNC2 , { ( void * ) opt_bitrate } , " video bitrate (please use -b:v) " , " bitrate " } ,
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/* audio options */
{ " aframes " , HAS_ARG | OPT_AUDIO | OPT_FUNC2 , { ( void * ) opt_audio_frames } , " set the number of audio frames to record " , " number " } ,
{ " aq " , HAS_ARG | OPT_AUDIO | OPT_FUNC2 , { ( void * ) opt_audio_qscale } , " set audio quality (codec-specific) " , " quality " , } ,
{ " ar " , HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC , { . off = OFFSET ( audio_sample_rate ) } , " set audio sampling rate (in Hz) " , " rate " } ,
{ " ac " , HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC , { . off = OFFSET ( audio_channels ) } , " set number of audio channels " , " channels " } ,
{ " an " , OPT_BOOL | OPT_AUDIO | OPT_OFFSET , { . off = OFFSET ( audio_disable ) } , " disable audio " } ,
{ " acodec " , HAS_ARG | OPT_AUDIO | OPT_FUNC2 , { ( void * ) opt_audio_codec } , " force audio codec ('copy' to copy stream) " , " codec " } ,
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{ " atag " , HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2 , { ( void * ) opt_old2new } , " force audio tag/fourcc " , " fourcc/tag " } ,
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{ " vol " , OPT_INT | HAS_ARG | OPT_AUDIO , { ( void * ) & audio_volume } , " change audio volume (256=normal) " , " volume " } , //
{ " sample_fmt " , HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING , { . off = OFFSET ( sample_fmts ) } , " set sample format " , " format " } ,
{ " channel_layout " , HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2 , { ( void * ) opt_channel_layout } , " set channel layout " , " layout " } ,
{ " af " , HAS_ARG | OPT_AUDIO | OPT_FUNC2 , { ( void * ) opt_audio_filters } , " audio filters " , " filter list " } ,
/* subtitle options */
{ " sn " , OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET , { . off = OFFSET ( subtitle_disable ) } , " disable subtitle " } ,
{ " scodec " , HAS_ARG | OPT_SUBTITLE | OPT_FUNC2 , { ( void * ) opt_subtitle_codec } , " force subtitle codec ('copy' to copy stream) " , " codec " } ,
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{ " stag " , HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2 , { ( void * ) opt_old2new } , " force subtitle tag/fourcc " , " fourcc/tag " } ,
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{ " fix_sub_duration " , OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC , { . off = OFFSET ( fix_sub_duration ) } , " fix subtitles duration " } ,
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/* grab options */
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{ " vc " , HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB , { ( void * ) opt_video_channel } , " deprecated, use -channel " , " channel " } ,
{ " tvstd " , HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB , { ( void * ) opt_video_standard } , " deprecated, use -standard " , " standard " } ,
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{ " isync " , OPT_BOOL | OPT_EXPERT | OPT_GRAB , { ( void * ) & input_sync } , " sync read on input " , " " } ,
/* muxer options */
{ " muxdelay " , OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET , { . off = OFFSET ( mux_max_delay ) } , " set the maximum demux-decode delay " , " seconds " } ,
{ " muxpreload " , OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET , { . off = OFFSET ( mux_preload ) } , " set the initial demux-decode delay " , " seconds " } ,
{ " bsf " , HAS_ARG | OPT_STRING | OPT_SPEC , { . off = OFFSET ( bitstream_filters ) } , " A comma-separated list of bitstream filters " , " bitstream_filters " } ,
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{ " absf " , HAS_ARG | OPT_AUDIO | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_old2new } , " deprecated " , " audio bitstream_filters " } ,
{ " vbsf " , HAS_ARG | OPT_VIDEO | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_old2new } , " deprecated " , " video bitstream_filters " } ,
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{ " apre " , HAS_ARG | OPT_AUDIO | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_preset } , " set the audio options to the indicated preset " , " preset " } ,
{ " vpre " , HAS_ARG | OPT_VIDEO | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_preset } , " set the video options to the indicated preset " , " preset " } ,
{ " spre " , HAS_ARG | OPT_SUBTITLE | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_preset } , " set the subtitle options to the indicated preset " , " preset " } ,
{ " fpre " , HAS_ARG | OPT_EXPERT | OPT_FUNC2 , { ( void * ) opt_preset } , " set options from indicated preset file " , " filename " } ,
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/* data codec support */
{ " dcodec " , HAS_ARG | OPT_DATA | OPT_FUNC2 , { ( void * ) opt_data_codec } , " force data codec ('copy' to copy stream) " , " codec " } ,
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{ " dn " , OPT_BOOL | OPT_VIDEO | OPT_OFFSET , { . off = OFFSET ( data_disable ) } , " disable data " } ,
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{ " default " , HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT , { ( void * ) opt_default } , " generic catch all option " , " " } ,
{ NULL , } ,
} ;