2009-11-11 23:50:21 +00:00
/*
2010-11-28 10:22:58 +00:00
* Copyright ( c ) 2007 Bobby Bingham
2009-11-11 23:50:21 +00:00
*
* This file is part of FFmpeg .
*
* FFmpeg is free software ; you can redistribute it and / or
* 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 .
*
* FFmpeg is distributed in the hope that it will be useful ,
* 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
* License along with FFmpeg ; if not , write to the Free Software
* Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1301 USA
*/
/**
2010-04-20 14:45:34 +00:00
* @ file
2009-11-11 23:50:21 +00:00
* scale video filter
*/
2023-01-06 14:16:31 +00:00
# include <float.h>
2012-08-06 13:49:32 +00:00
# include <stdio.h>
# include <string.h>
2009-11-11 23:50:21 +00:00
# include "avfilter.h"
2012-05-30 08:12:55 +00:00
# include "formats.h"
2012-06-12 18:12:42 +00:00
# include "internal.h"
2019-12-08 11:12:36 +00:00
# include "scale_eval.h"
2012-05-30 09:20:32 +00:00
# include "video.h"
2011-03-27 20:58:08 +00:00
# include "libavutil/avstring.h"
2019-12-31 11:40:58 +00:00
# include "libavutil/eval.h"
2012-08-06 13:49:32 +00:00
# include "libavutil/internal.h"
2011-06-04 11:58:23 +00:00
# include "libavutil/mathematics.h"
2012-04-09 04:05:50 +00:00
# include "libavutil/opt.h"
2012-10-29 10:48:53 +00:00
# include "libavutil/parseutils.h"
2010-01-31 16:33:29 +00:00
# include "libavutil/pixdesc.h"
2012-04-08 13:11:13 +00:00
# include "libavutil/imgutils.h"
2009-11-11 23:50:21 +00:00
# include "libswscale/swscale.h"
2019-12-31 11:40:58 +00:00
static const char * const var_names [ ] = {
" in_w " , " iw " ,
" in_h " , " ih " ,
" out_w " , " ow " ,
" out_h " , " oh " ,
" a " ,
" sar " ,
" dar " ,
" hsub " ,
" vsub " ,
" ohsub " ,
" ovsub " ,
2019-12-15 13:26:06 +00:00
" n " ,
" t " ,
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# if FF_API_FRAME_PKT
2019-12-15 13:26:06 +00:00
" pos " ,
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# endif
2019-12-31 11:45:01 +00:00
" main_w " ,
" main_h " ,
" main_a " ,
" main_sar " ,
" main_dar " , " mdar " ,
" main_hsub " ,
" main_vsub " ,
2019-12-15 13:26:06 +00:00
" main_n " ,
" main_t " ,
" main_pos " ,
2019-12-31 11:40:58 +00:00
NULL
} ;
enum var_name {
VAR_IN_W , VAR_IW ,
VAR_IN_H , VAR_IH ,
VAR_OUT_W , VAR_OW ,
VAR_OUT_H , VAR_OH ,
VAR_A ,
VAR_SAR ,
VAR_DAR ,
VAR_HSUB ,
VAR_VSUB ,
VAR_OHSUB ,
VAR_OVSUB ,
2019-12-15 13:26:06 +00:00
VAR_N ,
VAR_T ,
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# if FF_API_FRAME_PKT
2019-12-15 13:26:06 +00:00
VAR_POS ,
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# endif
2019-12-31 11:40:58 +00:00
VAR_S2R_MAIN_W ,
VAR_S2R_MAIN_H ,
VAR_S2R_MAIN_A ,
VAR_S2R_MAIN_SAR ,
VAR_S2R_MAIN_DAR , VAR_S2R_MDAR ,
VAR_S2R_MAIN_HSUB ,
VAR_S2R_MAIN_VSUB ,
2019-12-15 13:26:06 +00:00
VAR_S2R_MAIN_N ,
VAR_S2R_MAIN_T ,
VAR_S2R_MAIN_POS ,
2019-12-31 11:45:01 +00:00
VARS_NB
2019-12-31 11:40:58 +00:00
} ;
2016-01-18 17:44:09 +00:00
enum EvalMode {
EVAL_MODE_INIT ,
EVAL_MODE_FRAME ,
EVAL_MODE_NB
} ;
2014-04-11 09:54:15 +00:00
typedef struct ScaleContext {
2012-10-06 10:30:26 +00:00
const AVClass * class ;
2009-11-11 23:50:21 +00:00
struct SwsContext * sws ; ///< software scaler context
2011-03-27 22:09:58 +00:00
struct SwsContext * isws [ 2 ] ; ///< software scaler context for interlaced material
2023-01-06 14:16:31 +00:00
// context used for forwarding options to sws
struct SwsContext * sws_opts ;
2009-11-11 23:50:21 +00:00
/**
* New dimensions . Special values are :
* 0 = original width / height
* - 1 = keep original aspect
2014-01-25 14:02:15 +00:00
* - N = try to keep aspect but make sure it is divisible by N
2009-11-11 23:50:21 +00:00
*/
int w , h ;
2012-10-29 10:48:53 +00:00
char * size_str ;
2015-08-25 21:04:12 +00:00
double param [ 2 ] ; // sws params
2009-11-11 23:50:21 +00:00
int hsub , vsub ; ///< chroma subsampling
int slice_y ; ///< top of current output slice
int input_is_pal ; ///< set to 1 if the input format is paletted
2012-04-08 12:59:53 +00:00
int output_is_pal ; ///< set to 1 if the output format is paletted
2011-03-27 22:09:58 +00:00
int interlaced ;
2011-03-27 20:58:08 +00:00
2012-10-06 10:30:26 +00:00
char * w_expr ; ///< width expression string
char * h_expr ; ///< height expression string
2019-12-31 11:40:58 +00:00
AVExpr * w_pexpr ;
AVExpr * h_pexpr ;
2019-12-31 11:45:01 +00:00
double var_values [ VARS_NB ] ;
2019-12-31 11:40:58 +00:00
2013-02-25 20:21:29 +00:00
char * flags_str ;
2013-07-20 20:11:50 +00:00
char * in_color_matrix ;
char * out_color_matrix ;
2013-07-20 20:12:42 +00:00
int in_range ;
2022-02-23 20:48:40 +00:00
int in_frame_range ;
2013-07-20 20:12:42 +00:00
int out_range ;
2013-07-14 03:03:06 +00:00
int out_h_chr_pos ;
int out_v_chr_pos ;
2013-07-24 16:33:58 +00:00
int in_h_chr_pos ;
int in_v_chr_pos ;
2013-08-03 23:30:00 +00:00
int force_original_aspect_ratio ;
2019-08-12 13:58:14 +00:00
int force_divisible_by ;
2015-12-18 14:44:33 +00:00
2016-01-18 17:44:09 +00:00
int eval_mode ; ///< expression evaluation mode
2009-11-11 23:50:21 +00:00
} ScaleContext ;
2021-04-19 16:33:56 +00:00
const AVFilter ff_vf_scale2ref ;
2015-08-15 16:38:06 +00:00
2019-12-31 11:40:58 +00:00
static int config_props ( AVFilterLink * outlink ) ;
2019-12-31 11:45:01 +00:00
static int check_exprs ( AVFilterContext * ctx )
{
ScaleContext * scale = ctx - > priv ;
unsigned vars_w [ VARS_NB ] = { 0 } , vars_h [ VARS_NB ] = { 0 } ;
if ( ! scale - > w_pexpr & & ! scale - > h_pexpr )
return AVERROR ( EINVAL ) ;
if ( scale - > w_pexpr )
av_expr_count_vars ( scale - > w_pexpr , vars_w , VARS_NB ) ;
if ( scale - > h_pexpr )
av_expr_count_vars ( scale - > h_pexpr , vars_h , VARS_NB ) ;
if ( vars_w [ VAR_OUT_W ] | | vars_w [ VAR_OW ] ) {
av_log ( ctx , AV_LOG_ERROR , " Width expression cannot be self-referencing: '%s'. \n " , scale - > w_expr ) ;
return AVERROR ( EINVAL ) ;
}
if ( vars_h [ VAR_OUT_H ] | | vars_h [ VAR_OH ] ) {
av_log ( ctx , AV_LOG_ERROR , " Height expression cannot be self-referencing: '%s'. \n " , scale - > h_expr ) ;
return AVERROR ( EINVAL ) ;
}
if ( ( vars_w [ VAR_OUT_H ] | | vars_w [ VAR_OH ] ) & &
( vars_h [ VAR_OUT_W ] | | vars_h [ VAR_OW ] ) ) {
2020-01-26 15:36:53 +00:00
av_log ( ctx , AV_LOG_WARNING , " Circular references detected for width '%s' and height '%s' - possibly invalid. \n " , scale - > w_expr , scale - > h_expr ) ;
2019-12-31 11:45:01 +00:00
}
if ( ctx - > filter ! = & ff_vf_scale2ref & &
( vars_w [ VAR_S2R_MAIN_W ] | | vars_h [ VAR_S2R_MAIN_W ] | |
vars_w [ VAR_S2R_MAIN_H ] | | vars_h [ VAR_S2R_MAIN_H ] | |
vars_w [ VAR_S2R_MAIN_A ] | | vars_h [ VAR_S2R_MAIN_A ] | |
vars_w [ VAR_S2R_MAIN_SAR ] | | vars_h [ VAR_S2R_MAIN_SAR ] | |
vars_w [ VAR_S2R_MAIN_DAR ] | | vars_h [ VAR_S2R_MAIN_DAR ] | |
vars_w [ VAR_S2R_MDAR ] | | vars_h [ VAR_S2R_MDAR ] | |
vars_w [ VAR_S2R_MAIN_HSUB ] | | vars_h [ VAR_S2R_MAIN_HSUB ] | |
2019-12-15 13:26:06 +00:00
vars_w [ VAR_S2R_MAIN_VSUB ] | | vars_h [ VAR_S2R_MAIN_VSUB ] | |
vars_w [ VAR_S2R_MAIN_N ] | | vars_h [ VAR_S2R_MAIN_N ] | |
vars_w [ VAR_S2R_MAIN_T ] | | vars_h [ VAR_S2R_MAIN_T ] | |
vars_w [ VAR_S2R_MAIN_POS ] | | vars_h [ VAR_S2R_MAIN_POS ] ) ) {
2019-12-31 11:45:01 +00:00
av_log ( ctx , AV_LOG_ERROR , " Expressions with scale2ref variables are not valid in scale filter. \n " ) ;
return AVERROR ( EINVAL ) ;
}
2019-12-15 13:26:06 +00:00
if ( scale - > eval_mode = = EVAL_MODE_INIT & &
( vars_w [ VAR_N ] | | vars_h [ VAR_N ] | |
vars_w [ VAR_T ] | | vars_h [ VAR_T ] | |
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# if FF_API_FRAME_PKT
2019-12-15 13:26:06 +00:00
vars_w [ VAR_POS ] | | vars_h [ VAR_POS ] | |
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# endif
2019-12-15 13:26:06 +00:00
vars_w [ VAR_S2R_MAIN_N ] | | vars_h [ VAR_S2R_MAIN_N ] | |
vars_w [ VAR_S2R_MAIN_T ] | | vars_h [ VAR_S2R_MAIN_T ] | |
vars_w [ VAR_S2R_MAIN_POS ] | | vars_h [ VAR_S2R_MAIN_POS ] ) ) {
av_log ( ctx , AV_LOG_ERROR , " Expressions with frame variables 'n', 't', 'pos' are not valid in init eval_mode. \n " ) ;
return AVERROR ( EINVAL ) ;
}
2019-12-31 11:45:01 +00:00
return 0 ;
}
2019-12-31 11:40:58 +00:00
static int scale_parse_expr ( AVFilterContext * ctx , char * str_expr , AVExpr * * pexpr_ptr , const char * var , const char * args )
{
ScaleContext * scale = ctx - > priv ;
int ret , is_inited = 0 ;
char * old_str_expr = NULL ;
AVExpr * old_pexpr = NULL ;
if ( str_expr ) {
old_str_expr = av_strdup ( str_expr ) ;
if ( ! old_str_expr )
return AVERROR ( ENOMEM ) ;
av_opt_set ( scale , var , args , 0 ) ;
}
if ( * pexpr_ptr ) {
old_pexpr = * pexpr_ptr ;
* pexpr_ptr = NULL ;
is_inited = 1 ;
}
2019-12-31 11:45:01 +00:00
ret = av_expr_parse ( pexpr_ptr , args , var_names ,
2019-12-31 11:40:58 +00:00
NULL , NULL , NULL , NULL , 0 , ctx ) ;
if ( ret < 0 ) {
av_log ( ctx , AV_LOG_ERROR , " Cannot parse expression for %s: '%s' \n " , var , args ) ;
goto revert ;
}
2019-12-31 11:45:01 +00:00
ret = check_exprs ( ctx ) ;
if ( ret < 0 )
goto revert ;
2019-12-31 11:40:58 +00:00
if ( is_inited & & ( ret = config_props ( ctx - > outputs [ 0 ] ) ) < 0 )
goto revert ;
av_expr_free ( old_pexpr ) ;
old_pexpr = NULL ;
av_freep ( & old_str_expr ) ;
return 0 ;
revert :
av_expr_free ( * pexpr_ptr ) ;
* pexpr_ptr = NULL ;
if ( old_str_expr ) {
av_opt_set ( scale , var , old_str_expr , 0 ) ;
av_free ( old_str_expr ) ;
}
if ( old_pexpr )
* pexpr_ptr = old_pexpr ;
return ret ;
}
2023-01-06 14:16:31 +00:00
static av_cold int preinit ( AVFilterContext * ctx )
2009-11-11 23:50:21 +00:00
{
ScaleContext * scale = ctx - > priv ;
2012-10-06 10:30:26 +00:00
int ret ;
2023-01-06 14:16:31 +00:00
scale - > sws_opts = sws_alloc_context ( ) ;
if ( ! scale - > sws_opts )
return AVERROR ( ENOMEM ) ;
// set threads=0, so we can later check whether the user modified it
ret = av_opt_set_int ( scale - > sws_opts , " threads " , 0 , 0 ) ;
if ( ret < 0 )
return ret ;
return 0 ;
}
static av_cold int init ( AVFilterContext * ctx )
{
ScaleContext * scale = ctx - > priv ;
int64_t threads ;
int ret ;
2012-10-29 10:48:53 +00:00
if ( scale - > size_str & & ( scale - > w_expr | | scale - > h_expr ) ) {
av_log ( ctx , AV_LOG_ERROR ,
" Size and width/height expressions cannot be set at the same time. \n " ) ;
return AVERROR ( EINVAL ) ;
}
2013-04-12 00:34:40 +00:00
if ( scale - > w_expr & & ! scale - > h_expr )
FFSWAP ( char * , scale - > w_expr , scale - > size_str ) ;
2012-10-29 10:48:53 +00:00
if ( scale - > size_str ) {
char buf [ 32 ] ;
if ( ( ret = av_parse_video_size ( & scale - > w , & scale - > h , scale - > size_str ) ) < 0 ) {
av_log ( ctx , AV_LOG_ERROR ,
" Invalid size '%s' \n " , scale - > size_str ) ;
return ret ;
}
snprintf ( buf , sizeof ( buf ) - 1 , " %d " , scale - > w ) ;
av_opt_set ( scale , " w " , buf , 0 ) ;
snprintf ( buf , sizeof ( buf ) - 1 , " %d " , scale - > h ) ;
av_opt_set ( scale , " h " , buf , 0 ) ;
}
if ( ! scale - > w_expr )
av_opt_set ( scale , " w " , " iw " , 0 ) ;
if ( ! scale - > h_expr )
av_opt_set ( scale , " h " , " ih " , 0 ) ;
2019-12-31 11:40:58 +00:00
ret = scale_parse_expr ( ctx , NULL , & scale - > w_pexpr , " width " , scale - > w_expr ) ;
if ( ret < 0 )
return ret ;
ret = scale_parse_expr ( ctx , NULL , & scale - > h_pexpr , " height " , scale - > h_expr ) ;
if ( ret < 0 )
return ret ;
2012-10-31 14:45:28 +00:00
av_log ( ctx , AV_LOG_VERBOSE , " w:%s h:%s flags:'%s' interl:%d \n " ,
scale - > w_expr , scale - > h_expr , ( char * ) av_x_if_null ( scale - > flags_str , " " ) , scale - > interlaced ) ;
2011-03-27 20:58:08 +00:00
2021-08-04 16:35:02 +00:00
if ( scale - > flags_str & & * scale - > flags_str ) {
2023-01-06 14:16:31 +00:00
ret = av_opt_set ( scale - > sws_opts , " sws_flags " , scale - > flags_str , 0 ) ;
2012-10-06 10:30:26 +00:00
if ( ret < 0 )
return ret ;
2010-05-07 09:20:45 +00:00
}
2023-01-06 14:16:31 +00:00
for ( int i = 0 ; i < FF_ARRAY_ELEMS ( scale - > param ) ; i + + )
if ( scale - > param [ i ] ! = DBL_MAX ) {
ret = av_opt_set_double ( scale - > sws_opts , i ? " param1 " : " param0 " ,
scale - > param [ i ] , 0 ) ;
if ( ret < 0 )
return ret ;
}
// use generic thread-count if the user did not set it explicitly
ret = av_opt_get_int ( scale - > sws_opts , " threads " , 0 , & threads ) ;
if ( ret < 0 )
return ret ;
if ( ! threads )
av_opt_set_int ( scale - > sws_opts , " threads " , ff_filter_get_nb_threads ( ctx ) , 0 ) ;
2009-11-11 23:50:21 +00:00
2022-02-23 20:48:40 +00:00
scale - > in_frame_range = AVCOL_RANGE_UNSPECIFIED ;
2009-11-11 23:50:21 +00:00
return 0 ;
}
static av_cold void uninit ( AVFilterContext * ctx )
{
ScaleContext * scale = ctx - > priv ;
2019-12-31 11:40:58 +00:00
av_expr_free ( scale - > w_pexpr ) ;
av_expr_free ( scale - > h_pexpr ) ;
scale - > w_pexpr = scale - > h_pexpr = NULL ;
2023-01-06 14:16:31 +00:00
sws_freeContext ( scale - > sws_opts ) ;
2009-11-11 23:50:21 +00:00
sws_freeContext ( scale - > sws ) ;
2011-03-27 22:09:58 +00:00
sws_freeContext ( scale - > isws [ 0 ] ) ;
sws_freeContext ( scale - > isws [ 1 ] ) ;
2009-11-11 23:50:21 +00:00
scale - > sws = NULL ;
}
static int query_formats ( AVFilterContext * ctx )
{
AVFilterFormats * formats ;
2021-10-05 19:55:18 +00:00
const AVPixFmtDescriptor * desc ;
2012-10-06 10:10:34 +00:00
enum AVPixelFormat pix_fmt ;
2010-01-08 23:48:32 +00:00
int ret ;
2009-11-11 23:50:21 +00:00
2021-10-05 19:55:18 +00:00
desc = NULL ;
formats = NULL ;
while ( ( desc = av_pix_fmt_desc_next ( desc ) ) ) {
pix_fmt = av_pix_fmt_desc_get_id ( desc ) ;
if ( ( sws_isSupportedInput ( pix_fmt ) | |
sws_isSupportedEndiannessConversion ( pix_fmt ) )
& & ( ret = ff_add_format ( & formats , pix_fmt ) ) < 0 ) {
2015-10-05 03:39:25 +00:00
return ret ;
2014-05-24 09:15:15 +00:00
}
2021-10-05 19:55:18 +00:00
}
if ( ( ret = ff_formats_ref ( formats , & ctx - > inputs [ 0 ] - > outcfg . formats ) ) < 0 )
return ret ;
desc = NULL ;
formats = NULL ;
while ( ( desc = av_pix_fmt_desc_next ( desc ) ) ) {
pix_fmt = av_pix_fmt_desc_get_id ( desc ) ;
if ( ( sws_isSupportedOutput ( pix_fmt ) | | pix_fmt = = AV_PIX_FMT_PAL8 | |
sws_isSupportedEndiannessConversion ( pix_fmt ) )
& & ( ret = ff_add_format ( & formats , pix_fmt ) ) < 0 ) {
2015-10-05 03:39:25 +00:00
return ret ;
2021-10-05 19:55:18 +00:00
}
}
if ( ( ret = ff_formats_ref ( formats , & ctx - > outputs [ 0 ] - > incfg . formats ) ) < 0 )
return ret ;
2009-11-11 23:50:21 +00:00
return 0 ;
}
2013-07-20 20:11:50 +00:00
static const int * parse_yuv_type ( const char * s , enum AVColorSpace colorspace )
{
if ( ! s )
s = " bt601 " ;
if ( s & & strstr ( s , " bt709 " ) ) {
colorspace = AVCOL_SPC_BT709 ;
} else if ( s & & strstr ( s , " fcc " ) ) {
colorspace = AVCOL_SPC_FCC ;
} else if ( s & & strstr ( s , " smpte240m " ) ) {
colorspace = AVCOL_SPC_SMPTE240M ;
} else if ( s & & ( strstr ( s , " bt601 " ) | | strstr ( s , " bt470 " ) | | strstr ( s , " smpte170m " ) ) ) {
colorspace = AVCOL_SPC_BT470BG ;
2016-04-15 18:26:37 +00:00
} else if ( s & & strstr ( s , " bt2020 " ) ) {
colorspace = AVCOL_SPC_BT2020_NCL ;
2013-07-20 20:11:50 +00:00
}
2016-04-15 18:26:37 +00:00
if ( colorspace < 1 | | colorspace > 10 | | colorspace = = 8 ) {
2013-07-20 20:11:50 +00:00
colorspace = AVCOL_SPC_BT470BG ;
}
2013-07-26 21:03:58 +00:00
return sws_getCoefficients ( colorspace ) ;
2013-07-20 20:11:50 +00:00
}
2019-12-31 11:40:58 +00:00
static int scale_eval_dimensions ( AVFilterContext * ctx )
{
ScaleContext * scale = ctx - > priv ;
const char scale2ref = ctx - > filter = = & ff_vf_scale2ref ;
const AVFilterLink * inlink = scale2ref ? ctx - > inputs [ 1 ] : ctx - > inputs [ 0 ] ;
const AVFilterLink * outlink = ctx - > outputs [ 0 ] ;
const AVPixFmtDescriptor * desc = av_pix_fmt_desc_get ( inlink - > format ) ;
const AVPixFmtDescriptor * out_desc = av_pix_fmt_desc_get ( outlink - > format ) ;
char * expr ;
int eval_w , eval_h ;
int ret ;
double res ;
const AVPixFmtDescriptor * main_desc ;
const AVFilterLink * main_link ;
if ( scale2ref ) {
main_link = ctx - > inputs [ 0 ] ;
main_desc = av_pix_fmt_desc_get ( main_link - > format ) ;
}
scale - > var_values [ VAR_IN_W ] = scale - > var_values [ VAR_IW ] = inlink - > w ;
scale - > var_values [ VAR_IN_H ] = scale - > var_values [ VAR_IH ] = inlink - > h ;
scale - > var_values [ VAR_OUT_W ] = scale - > var_values [ VAR_OW ] = NAN ;
scale - > var_values [ VAR_OUT_H ] = scale - > var_values [ VAR_OH ] = NAN ;
scale - > var_values [ VAR_A ] = ( double ) inlink - > w / inlink - > h ;
scale - > var_values [ VAR_SAR ] = inlink - > sample_aspect_ratio . num ?
( double ) inlink - > sample_aspect_ratio . num / inlink - > sample_aspect_ratio . den : 1 ;
scale - > var_values [ VAR_DAR ] = scale - > var_values [ VAR_A ] * scale - > var_values [ VAR_SAR ] ;
scale - > var_values [ VAR_HSUB ] = 1 < < desc - > log2_chroma_w ;
scale - > var_values [ VAR_VSUB ] = 1 < < desc - > log2_chroma_h ;
scale - > var_values [ VAR_OHSUB ] = 1 < < out_desc - > log2_chroma_w ;
scale - > var_values [ VAR_OVSUB ] = 1 < < out_desc - > log2_chroma_h ;
if ( scale2ref ) {
2019-12-31 11:45:01 +00:00
scale - > var_values [ VAR_S2R_MAIN_W ] = main_link - > w ;
scale - > var_values [ VAR_S2R_MAIN_H ] = main_link - > h ;
scale - > var_values [ VAR_S2R_MAIN_A ] = ( double ) main_link - > w / main_link - > h ;
scale - > var_values [ VAR_S2R_MAIN_SAR ] = main_link - > sample_aspect_ratio . num ?
2019-12-31 11:40:58 +00:00
( double ) main_link - > sample_aspect_ratio . num / main_link - > sample_aspect_ratio . den : 1 ;
2019-12-31 11:45:01 +00:00
scale - > var_values [ VAR_S2R_MAIN_DAR ] = scale - > var_values [ VAR_S2R_MDAR ] =
scale - > var_values [ VAR_S2R_MAIN_A ] * scale - > var_values [ VAR_S2R_MAIN_SAR ] ;
scale - > var_values [ VAR_S2R_MAIN_HSUB ] = 1 < < main_desc - > log2_chroma_w ;
scale - > var_values [ VAR_S2R_MAIN_VSUB ] = 1 < < main_desc - > log2_chroma_h ;
2019-12-31 11:40:58 +00:00
}
res = av_expr_eval ( scale - > w_pexpr , scale - > var_values , NULL ) ;
eval_w = scale - > var_values [ VAR_OUT_W ] = scale - > var_values [ VAR_OW ] = ( int ) res = = 0 ? inlink - > w : ( int ) res ;
res = av_expr_eval ( scale - > h_pexpr , scale - > var_values , NULL ) ;
if ( isnan ( res ) ) {
expr = scale - > h_expr ;
ret = AVERROR ( EINVAL ) ;
goto fail ;
}
eval_h = scale - > var_values [ VAR_OUT_H ] = scale - > var_values [ VAR_OH ] = ( int ) res = = 0 ? inlink - > h : ( int ) res ;
res = av_expr_eval ( scale - > w_pexpr , scale - > var_values , NULL ) ;
if ( isnan ( res ) ) {
expr = scale - > w_expr ;
ret = AVERROR ( EINVAL ) ;
goto fail ;
}
eval_w = scale - > var_values [ VAR_OUT_W ] = scale - > var_values [ VAR_OW ] = ( int ) res = = 0 ? inlink - > w : ( int ) res ;
scale - > w = eval_w ;
scale - > h = eval_h ;
return 0 ;
fail :
av_log ( ctx , AV_LOG_ERROR ,
" Error when evaluating the expression '%s'. \n " , expr ) ;
return ret ;
}
2009-11-11 23:50:21 +00:00
static int config_props ( AVFilterLink * outlink )
{
AVFilterContext * ctx = outlink - > src ;
2015-08-15 16:38:06 +00:00
AVFilterLink * inlink0 = outlink - > src - > inputs [ 0 ] ;
AVFilterLink * inlink = ctx - > filter = = & ff_vf_scale2ref ?
outlink - > src - > inputs [ 1 ] :
outlink - > src - > inputs [ 0 ] ;
2012-10-08 18:54:00 +00:00
enum AVPixelFormat outfmt = outlink - > format ;
2012-10-06 11:29:37 +00:00
const AVPixFmtDescriptor * desc = av_pix_fmt_desc_get ( inlink - > format ) ;
2017-02-02 00:30:18 +00:00
ScaleContext * scale = ctx - > priv ;
2023-01-06 14:16:31 +00:00
uint8_t * flags_val = NULL ;
2011-03-27 20:58:08 +00:00
int ret ;
2009-11-11 23:50:21 +00:00
2019-12-31 11:40:58 +00:00
if ( ( ret = scale_eval_dimensions ( ctx ) ) < 0 )
2017-02-02 00:30:18 +00:00
goto fail ;
2014-01-25 13:40:48 +00:00
2022-09-05 02:43:04 +00:00
outlink - > w = scale - > w ;
outlink - > h = scale - > h ;
ff_scale_adjust_dimensions ( inlink , & outlink - > w , & outlink - > h ,
2019-12-02 15:41:21 +00:00
scale - > force_original_aspect_ratio ,
scale - > force_divisible_by ) ;
2013-08-03 23:30:00 +00:00
2022-09-05 02:43:04 +00:00
if ( outlink - > w > INT_MAX | |
outlink - > h > INT_MAX | |
( outlink - > h * inlink - > w ) > INT_MAX | |
( outlink - > w * inlink - > h ) > INT_MAX )
2009-11-11 23:50:21 +00:00
av_log ( ctx , AV_LOG_ERROR , " Rescaled value for width or height is too big. \n " ) ;
/* TODO: make algorithm configurable */
avutil/pixdesc: deprecate AV_PIX_FMT_FLAG_PSEUDOPAL
PSEUDOPAL pixel formats are not paletted, but carried a palette with the
intention of allowing code to treat unpaletted formats as paletted. The
palette simply mapped the byte values to the resulting RGB values,
making it some sort of LUT for RGB conversion.
It was used for 1 byte formats only: RGB4_BYTE, BGR4_BYTE, RGB8, BGR8,
GRAY8. The first 4 are awfully obscure, used only by some ancient bitmap
formats. The last one, GRAY8, is more common, but its treatment is
grossly incorrect. It considers full range GRAY8 only, so GRAY8 coming
from typical Y video planes was not mapped to the correct RGB values.
This cannot be fixed, because AVFrame.color_range can be freely changed
at runtime, and there is nothing to ensure the pseudo palette is
updated.
Also, nothing actually used the PSEUDOPAL palette data, except xwdenc
(trivially changed in the previous commit). All other code had to treat
it as a special case, just to ignore or to propagate palette data.
In conclusion, this was just a very strange old mechnaism that has no
real justification to exist anymore (although it may have been nice and
useful in the past). Now it's an artifact that makes the API harder to
use: API users who allocate their own pixel data have to be aware that
they need to allocate the palette, or FFmpeg will crash on them in
_some_ situations. On top of this, there was no API to allocate the
pseuo palette outside of av_frame_get_buffer().
This patch not only deprecates AV_PIX_FMT_FLAG_PSEUDOPAL, but also makes
the pseudo palette optional. Nothing accesses it anymore, though if it's
set, it's propagated. It's still allocated and initialized for
compatibility with API users that rely on this feature. But new API
users do not need to allocate it. This was an explicit goal of this
patch.
Most changes replace AV_PIX_FMT_FLAG_PSEUDOPAL with FF_PSEUDOPAL. I
first tried #ifdefing all code, but it was a mess. The FF_PSEUDOPAL
macro reduces the mess, and still allows defining FF_API_PSEUDOPAL to 0.
Passes FATE with FF_API_PSEUDOPAL enabled and disabled. In addition,
FATE passes with FF_API_PSEUDOPAL set to 1, but with allocation
functions manually changed to not allocating a palette.
2018-03-29 13:18:28 +00:00
scale - > input_is_pal = desc - > flags & AV_PIX_FMT_FLAG_PAL ;
2012-10-08 18:54:00 +00:00
if ( outfmt = = AV_PIX_FMT_PAL8 ) outfmt = AV_PIX_FMT_BGR8 ;
2021-04-13 23:46:26 +00:00
scale - > output_is_pal = av_pix_fmt_desc_get ( outfmt ) - > flags & AV_PIX_FMT_FLAG_PAL ;
2009-11-11 23:50:21 +00:00
2011-05-02 10:35:39 +00:00
if ( scale - > sws )
2011-03-09 02:30:24 +00:00
sws_freeContext ( scale - > sws ) ;
2013-07-14 03:19:46 +00:00
if ( scale - > isws [ 0 ] )
sws_freeContext ( scale - > isws [ 0 ] ) ;
if ( scale - > isws [ 1 ] )
sws_freeContext ( scale - > isws [ 1 ] ) ;
scale - > isws [ 0 ] = scale - > isws [ 1 ] = scale - > sws = NULL ;
2015-08-15 16:38:06 +00:00
if ( inlink0 - > w = = outlink - > w & &
inlink0 - > h = = outlink - > h & &
2015-08-30 21:49:04 +00:00
! scale - > out_color_matrix & &
2015-08-30 21:46:11 +00:00
scale - > in_range = = scale - > out_range & &
2015-08-15 16:38:06 +00:00
inlink0 - > format = = outlink - > format )
2013-07-14 03:19:46 +00:00
;
2012-03-29 05:02:27 +00:00
else {
2013-07-14 03:19:46 +00:00
struct SwsContext * * swscs [ 3 ] = { & scale - > sws , & scale - > isws [ 0 ] , & scale - > isws [ 1 ] } ;
int i ;
for ( i = 0 ; i < 3 ; i + + ) {
2017-02-06 15:03:17 +00:00
int in_v_chr_pos = scale - > in_v_chr_pos , out_v_chr_pos = scale - > out_v_chr_pos ;
2021-08-10 17:07:36 +00:00
struct SwsContext * const s = sws_alloc_context ( ) ;
if ( ! s )
2013-07-14 03:19:46 +00:00
return AVERROR ( ENOMEM ) ;
2021-08-10 17:07:36 +00:00
* swscs [ i ] = s ;
2023-01-06 14:16:31 +00:00
ret = av_opt_copy ( s , scale - > sws_opts ) ;
if ( ret < 0 )
return ret ;
2021-08-10 17:07:36 +00:00
av_opt_set_int ( s , " srcw " , inlink0 - > w , 0 ) ;
av_opt_set_int ( s , " srch " , inlink0 - > h > > ! ! i , 0 ) ;
av_opt_set_int ( s , " src_format " , inlink0 - > format , 0 ) ;
av_opt_set_int ( s , " dstw " , outlink - > w , 0 ) ;
av_opt_set_int ( s , " dsth " , outlink - > h > > ! ! i , 0 ) ;
av_opt_set_int ( s , " dst_format " , outfmt , 0 ) ;
2015-09-01 07:17:26 +00:00
if ( scale - > in_range ! = AVCOL_RANGE_UNSPECIFIED )
2021-08-10 17:07:36 +00:00
av_opt_set_int ( s , " src_range " ,
2015-09-01 07:17:26 +00:00
scale - > in_range = = AVCOL_RANGE_JPEG , 0 ) ;
2022-02-23 20:48:40 +00:00
else if ( scale - > in_frame_range ! = AVCOL_RANGE_UNSPECIFIED )
av_opt_set_int ( s , " src_range " ,
scale - > in_frame_range = = AVCOL_RANGE_JPEG , 0 ) ;
2015-09-01 07:17:26 +00:00
if ( scale - > out_range ! = AVCOL_RANGE_UNSPECIFIED )
2021-08-10 17:07:36 +00:00
av_opt_set_int ( s , " dst_range " ,
2015-09-01 07:17:26 +00:00
scale - > out_range = = AVCOL_RANGE_JPEG , 0 ) ;
2013-07-14 03:19:46 +00:00
2015-09-23 13:06:01 +00:00
/* Override YUV420P default settings to have the correct (MPEG-2) chroma positions
2014-12-24 23:52:46 +00:00
* MPEG - 2 chroma positions are used by convention
* XXX : support other 4 : 2 : 0 pixel formats */
2015-09-23 13:06:01 +00:00
if ( inlink0 - > format = = AV_PIX_FMT_YUV420P & & scale - > in_v_chr_pos = = - 513 ) {
2017-02-06 15:03:17 +00:00
in_v_chr_pos = ( i = = 0 ) ? 128 : ( i = = 1 ) ? 64 : 192 ;
2014-12-24 23:52:46 +00:00
}
2015-09-23 13:06:01 +00:00
if ( outlink - > format = = AV_PIX_FMT_YUV420P & & scale - > out_v_chr_pos = = - 513 ) {
2017-02-06 15:03:17 +00:00
out_v_chr_pos = ( i = = 0 ) ? 128 : ( i = = 1 ) ? 64 : 192 ;
2014-12-24 23:52:46 +00:00
}
2021-08-10 17:07:36 +00:00
av_opt_set_int ( s , " src_h_chr_pos " , scale - > in_h_chr_pos , 0 ) ;
av_opt_set_int ( s , " src_v_chr_pos " , in_v_chr_pos , 0 ) ;
av_opt_set_int ( s , " dst_h_chr_pos " , scale - > out_h_chr_pos , 0 ) ;
av_opt_set_int ( s , " dst_v_chr_pos " , out_v_chr_pos , 0 ) ;
2013-07-14 03:03:06 +00:00
2021-08-10 17:07:36 +00:00
if ( ( ret = sws_init_context ( s , NULL , NULL ) ) < 0 )
2013-07-14 03:19:46 +00:00
return ret ;
2013-07-18 09:03:56 +00:00
if ( ! scale - > interlaced )
break ;
2013-07-14 03:19:46 +00:00
}
2012-03-29 05:02:27 +00:00
}
2010-05-07 22:12:13 +00:00
2017-06-05 10:55:21 +00:00
if ( inlink0 - > sample_aspect_ratio . num ) {
outlink - > sample_aspect_ratio = av_mul_q ( ( AVRational ) { outlink - > h * inlink0 - > w , outlink - > w * inlink0 - > h } , inlink0 - > sample_aspect_ratio ) ;
2011-08-26 23:49:55 +00:00
} else
2017-06-05 10:55:21 +00:00
outlink - > sample_aspect_ratio = inlink0 - > sample_aspect_ratio ;
2011-08-26 23:49:55 +00:00
2023-01-06 14:16:31 +00:00
if ( scale - > sws )
av_opt_get ( scale - > sws , " sws_flags " , 0 , & flags_val ) ;
av_log ( ctx , AV_LOG_VERBOSE , " w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d flags:%s \n " ,
2012-10-12 15:04:58 +00:00
inlink - > w , inlink - > h , av_get_pix_fmt_name ( inlink - > format ) ,
2012-03-17 11:28:35 +00:00
inlink - > sample_aspect_ratio . num , inlink - > sample_aspect_ratio . den ,
2012-10-12 15:04:58 +00:00
outlink - > w , outlink - > h , av_get_pix_fmt_name ( outlink - > format ) ,
2012-03-17 11:28:35 +00:00
outlink - > sample_aspect_ratio . num , outlink - > sample_aspect_ratio . den ,
2023-01-06 14:16:31 +00:00
flags_val ) ;
av_freep ( & flags_val ) ;
2011-01-16 20:11:46 +00:00
return 0 ;
2011-03-27 20:58:08 +00:00
fail :
return ret ;
2009-11-11 23:50:21 +00:00
}
2015-08-15 16:38:06 +00:00
static int config_props_ref ( AVFilterLink * outlink )
{
AVFilterLink * inlink = outlink - > src - > inputs [ 1 ] ;
outlink - > w = inlink - > w ;
outlink - > h = inlink - > h ;
outlink - > sample_aspect_ratio = inlink - > sample_aspect_ratio ;
2015-08-18 13:06:10 +00:00
outlink - > time_base = inlink - > time_base ;
2017-11-08 08:15:29 +00:00
outlink - > frame_rate = inlink - > frame_rate ;
2015-08-15 16:38:06 +00:00
return 0 ;
}
2015-08-18 13:10:30 +00:00
static int request_frame ( AVFilterLink * outlink )
{
return ff_request_frame ( outlink - > src - > inputs [ 0 ] ) ;
}
static int request_frame_ref ( AVFilterLink * outlink )
{
return ff_request_frame ( outlink - > src - > inputs [ 1 ] ) ;
}
2021-07-07 13:00:19 +00:00
static void frame_offset ( AVFrame * frame , int dir , int is_pal )
2009-11-11 23:50:21 +00:00
{
2021-07-07 13:00:19 +00:00
for ( int i = 0 ; i < 4 & & frame - > data [ i ] ; i + + ) {
if ( i = = 1 & & is_pal )
break ;
frame - > data [ i ] + = frame - > linesize [ i ] * dir ;
2011-03-27 22:09:58 +00:00
}
2021-07-07 13:00:19 +00:00
}
static int scale_field ( ScaleContext * scale , AVFrame * dst , AVFrame * src ,
int field )
{
int orig_h_src = src - > height ;
int orig_h_dst = dst - > height ;
int ret ;
// offset the data pointers for the bottom field
if ( field ) {
frame_offset ( src , 1 , scale - > input_is_pal ) ;
frame_offset ( dst , 1 , scale - > output_is_pal ) ;
}
// take every second line
for ( int i = 0 ; i < 4 ; i + + ) {
src - > linesize [ i ] * = 2 ;
dst - > linesize [ i ] * = 2 ;
}
src - > height / = 2 ;
dst - > height / = 2 ;
2011-03-27 22:09:58 +00:00
2021-07-07 13:00:19 +00:00
ret = sws_scale_frame ( scale - > isws [ field ] , dst , src ) ;
if ( ret < 0 )
return ret ;
// undo the changes we made above
for ( int i = 0 ; i < 4 ; i + + ) {
src - > linesize [ i ] / = 2 ;
dst - > linesize [ i ] / = 2 ;
}
src - > height = orig_h_src ;
dst - > height = orig_h_dst ;
if ( field ) {
frame_offset ( src , - 1 , scale - > input_is_pal ) ;
frame_offset ( dst , - 1 , scale - > output_is_pal ) ;
}
return 0 ;
2011-03-27 22:09:58 +00:00
}
2019-09-07 15:11:25 +00:00
static int scale_frame ( AVFilterLink * link , AVFrame * in , AVFrame * * frame_out )
2009-11-11 23:50:21 +00:00
{
2019-12-08 10:24:28 +00:00
AVFilterContext * ctx = link - > dst ;
ScaleContext * scale = ctx - > priv ;
AVFilterLink * outlink = ctx - > outputs [ 0 ] ;
2012-11-28 07:41:07 +00:00
AVFrame * out ;
2012-11-29 00:19:35 +00:00
const AVPixFmtDescriptor * desc = av_pix_fmt_desc_get ( link - > format ) ;
char buf [ 32 ] ;
2021-05-23 14:06:55 +00:00
int ret ;
2013-07-24 23:27:00 +00:00
int in_range ;
2019-12-08 10:13:42 +00:00
int frame_changed ;
2012-11-29 00:19:35 +00:00
2019-09-07 15:11:25 +00:00
* frame_out = NULL ;
2017-04-22 08:57:18 +00:00
if ( in - > colorspace = = AVCOL_SPC_YCGCO )
2015-04-13 11:45:41 +00:00
av_log ( link - > dst , AV_LOG_WARNING , " Detected unsupported YCgCo colorspace. \n " ) ;
2019-12-08 10:13:42 +00:00
frame_changed = in - > width ! = link - > w | |
in - > height ! = link - > h | |
in - > format ! = link - > format | |
in - > sample_aspect_ratio . den ! = link - > sample_aspect_ratio . den | |
in - > sample_aspect_ratio . num ! = link - > sample_aspect_ratio . num ;
2022-02-23 20:48:40 +00:00
if ( in - > color_range ! = AVCOL_RANGE_UNSPECIFIED & &
scale - > in_range = = AVCOL_RANGE_UNSPECIFIED & &
in - > color_range ! = scale - > in_frame_range ) {
scale - > in_frame_range = in - > color_range ;
frame_changed = 1 ;
}
2019-12-15 13:26:06 +00:00
if ( scale - > eval_mode = = EVAL_MODE_FRAME | | frame_changed ) {
unsigned vars_w [ VARS_NB ] = { 0 } , vars_h [ VARS_NB ] = { 0 } ;
av_expr_count_vars ( scale - > w_pexpr , vars_w , VARS_NB ) ;
av_expr_count_vars ( scale - > h_pexpr , vars_h , VARS_NB ) ;
if ( scale - > eval_mode = = EVAL_MODE_FRAME & &
! frame_changed & &
ctx - > filter ! = & ff_vf_scale2ref & &
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
! ( vars_w [ VAR_N ] | | vars_w [ VAR_T ]
# if FF_API_FRAME_PKT
| | vars_w [ VAR_POS ]
# endif
) & &
! ( vars_h [ VAR_N ] | | vars_h [ VAR_T ]
# if FF_API_FRAME_PKT
| | vars_h [ VAR_POS ]
# endif
) & &
2019-12-15 13:26:06 +00:00
scale - > w & & scale - > h )
goto scale ;
2016-01-18 17:44:09 +00:00
if ( scale - > eval_mode = = EVAL_MODE_INIT ) {
2022-09-05 02:43:04 +00:00
snprintf ( buf , sizeof ( buf ) - 1 , " %d " , scale - > w ) ;
2016-01-18 17:44:09 +00:00
av_opt_set ( scale , " w " , buf , 0 ) ;
2022-09-05 02:43:04 +00:00
snprintf ( buf , sizeof ( buf ) - 1 , " %d " , scale - > h ) ;
2016-01-18 17:44:09 +00:00
av_opt_set ( scale , " h " , buf , 0 ) ;
2019-12-31 11:40:58 +00:00
ret = scale_parse_expr ( ctx , NULL , & scale - > w_pexpr , " width " , scale - > w_expr ) ;
if ( ret < 0 )
return ret ;
ret = scale_parse_expr ( ctx , NULL , & scale - > h_pexpr , " height " , scale - > h_expr ) ;
if ( ret < 0 )
return ret ;
2016-01-18 17:44:09 +00:00
}
2009-11-11 23:50:21 +00:00
2019-12-15 13:26:06 +00:00
if ( ctx - > filter = = & ff_vf_scale2ref ) {
scale - > var_values [ VAR_S2R_MAIN_N ] = link - > frame_count_out ;
scale - > var_values [ VAR_S2R_MAIN_T ] = TS2T ( in - > pts , link - > time_base ) ;
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# if FF_API_FRAME_PKT
FF_DISABLE_DEPRECATION_WARNINGS
2019-12-15 13:26:06 +00:00
scale - > var_values [ VAR_S2R_MAIN_POS ] = in - > pkt_pos = = - 1 ? NAN : in - > pkt_pos ;
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
FF_ENABLE_DEPRECATION_WARNINGS
# endif
2019-12-15 13:26:06 +00:00
} else {
scale - > var_values [ VAR_N ] = link - > frame_count_out ;
scale - > var_values [ VAR_T ] = TS2T ( in - > pts , link - > time_base ) ;
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# if FF_API_FRAME_PKT
FF_DISABLE_DEPRECATION_WARNINGS
2019-12-15 13:26:06 +00:00
scale - > var_values [ VAR_POS ] = in - > pkt_pos = = - 1 ? NAN : in - > pkt_pos ;
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
FF_ENABLE_DEPRECATION_WARNINGS
# endif
2019-12-15 13:26:06 +00:00
}
2012-11-29 00:19:35 +00:00
link - > dst - > inputs [ 0 ] - > format = in - > format ;
2013-03-10 00:30:30 +00:00
link - > dst - > inputs [ 0 ] - > w = in - > width ;
link - > dst - > inputs [ 0 ] - > h = in - > height ;
2012-11-29 00:19:35 +00:00
2016-01-18 17:44:09 +00:00
link - > dst - > inputs [ 0 ] - > sample_aspect_ratio . den = in - > sample_aspect_ratio . den ;
link - > dst - > inputs [ 0 ] - > sample_aspect_ratio . num = in - > sample_aspect_ratio . num ;
2012-11-29 00:19:35 +00:00
if ( ( ret = config_props ( outlink ) ) < 0 )
return ret ;
2012-03-29 05:02:27 +00:00
}
2019-12-15 13:26:06 +00:00
scale :
2019-09-07 15:11:25 +00:00
if ( ! scale - > sws ) {
* frame_out = in ;
return 0 ;
}
2012-11-29 00:19:35 +00:00
scale - > hsub = desc - > log2_chroma_w ;
scale - > vsub = desc - > log2_chroma_h ;
2012-11-28 07:41:07 +00:00
out = ff_get_video_buffer ( outlink , outlink - > w , outlink - > h ) ;
2012-11-29 00:19:35 +00:00
if ( ! out ) {
2012-11-28 07:41:07 +00:00
av_frame_free ( & in ) ;
2012-11-29 00:19:35 +00:00
return AVERROR ( ENOMEM ) ;
}
2019-09-07 15:11:25 +00:00
* frame_out = out ;
2012-11-29 00:19:35 +00:00
2012-11-28 07:41:07 +00:00
av_frame_copy_props ( out , in ) ;
out - > width = outlink - > w ;
out - > height = outlink - > h ;
2012-11-29 00:19:35 +00:00
2021-08-28 21:38:29 +00:00
// Sanity checks:
// 1. If the output is RGB, set the matrix coefficients to RGB.
// 2. If the output is not RGB and we've got the RGB/XYZ (identity)
// matrix configured, unset the matrix.
// In theory these should be in swscale itself as the AVFrame
// based API gets in, so that not every swscale API user has
// to go through duplicating such sanity checks.
if ( av_pix_fmt_desc_get ( out - > format ) - > flags & AV_PIX_FMT_FLAG_RGB )
out - > colorspace = AVCOL_SPC_RGB ;
else if ( out - > colorspace = = AVCOL_SPC_RGB )
2021-08-22 20:28:55 +00:00
out - > colorspace = AVCOL_SPC_UNSPECIFIED ;
2019-09-26 15:36:54 +00:00
if ( scale - > output_is_pal )
2012-11-29 00:19:35 +00:00
avpriv_set_systematic_pal2 ( ( uint32_t * ) out - > data [ 1 ] , outlink - > format = = AV_PIX_FMT_PAL8 ? AV_PIX_FMT_BGR8 : outlink - > format ) ;
2017-04-22 08:57:18 +00:00
in_range = in - > color_range ;
2013-07-24 23:27:00 +00:00
2013-07-20 20:11:50 +00:00
if ( scale - > in_color_matrix
| | scale - > out_color_matrix
| | scale - > in_range ! = AVCOL_RANGE_UNSPECIFIED
2013-07-24 23:27:00 +00:00
| | in_range ! = AVCOL_RANGE_UNSPECIFIED
2013-07-20 20:11:50 +00:00
| | scale - > out_range ! = AVCOL_RANGE_UNSPECIFIED ) {
int in_full , out_full , brightness , contrast , saturation ;
const int * inv_table , * table ;
sws_getColorspaceDetails ( scale - > sws , ( int * * ) & inv_table , & in_full ,
( int * * ) & table , & out_full ,
& brightness , & contrast , & saturation ) ;
if ( scale - > in_color_matrix )
2017-04-22 08:57:18 +00:00
inv_table = parse_yuv_type ( scale - > in_color_matrix , in - > colorspace ) ;
2013-07-20 20:11:50 +00:00
if ( scale - > out_color_matrix )
table = parse_yuv_type ( scale - > out_color_matrix , AVCOL_SPC_UNSPECIFIED ) ;
2015-08-30 22:17:50 +00:00
else if ( scale - > in_color_matrix )
table = inv_table ;
2013-07-20 20:11:50 +00:00
2013-07-20 20:12:42 +00:00
if ( scale - > in_range ! = AVCOL_RANGE_UNSPECIFIED )
in_full = ( scale - > in_range = = AVCOL_RANGE_JPEG ) ;
2013-07-24 23:27:00 +00:00
else if ( in_range ! = AVCOL_RANGE_UNSPECIFIED )
in_full = ( in_range = = AVCOL_RANGE_JPEG ) ;
2013-07-20 20:12:42 +00:00
if ( scale - > out_range ! = AVCOL_RANGE_UNSPECIFIED )
out_full = ( scale - > out_range = = AVCOL_RANGE_JPEG ) ;
2013-07-20 20:11:50 +00:00
sws_setColorspaceDetails ( scale - > sws , inv_table , in_full ,
table , out_full ,
brightness , contrast , saturation ) ;
if ( scale - > isws [ 0 ] )
2013-07-20 20:20:25 +00:00
sws_setColorspaceDetails ( scale - > isws [ 0 ] , inv_table , in_full ,
table , out_full ,
brightness , contrast , saturation ) ;
2013-07-20 20:11:50 +00:00
if ( scale - > isws [ 1 ] )
2013-07-20 20:20:25 +00:00
sws_setColorspaceDetails ( scale - > isws [ 1 ] , inv_table , in_full ,
table , out_full ,
brightness , contrast , saturation ) ;
2015-12-30 23:01:21 +00:00
2017-04-22 08:57:18 +00:00
out - > color_range = out_full ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG ;
2013-07-20 20:11:50 +00:00
}
2012-11-28 07:41:07 +00:00
av_reduce ( & out - > sample_aspect_ratio . num , & out - > sample_aspect_ratio . den ,
( int64_t ) in - > sample_aspect_ratio . num * outlink - > h * link - > w ,
( int64_t ) in - > sample_aspect_ratio . den * outlink - > w * link - > h ,
2012-11-29 00:19:35 +00:00
INT_MAX ) ;
2009-11-11 23:50:21 +00:00
2019-09-26 15:36:54 +00:00
if ( scale - > interlaced > 0 | | ( scale - > interlaced < 0 & & in - > interlaced_frame ) ) {
2021-07-07 13:00:19 +00:00
ret = scale_field ( scale , out , in , 0 ) ;
2021-05-23 14:06:55 +00:00
if ( ret > = 0 )
2021-07-07 13:00:19 +00:00
ret = scale_field ( scale , out , in , 1 ) ;
2019-09-26 15:36:54 +00:00
} else {
2021-07-07 13:00:19 +00:00
ret = sws_scale_frame ( scale - > sws , out , in ) ;
2011-03-27 22:09:58 +00:00
}
2009-11-11 23:50:21 +00:00
2012-11-28 07:41:07 +00:00
av_frame_free ( & in ) ;
2021-05-23 14:06:55 +00:00
if ( ret < 0 )
av_frame_free ( frame_out ) ;
return ret ;
2019-09-07 15:11:25 +00:00
}
static int filter_frame ( AVFilterLink * link , AVFrame * in )
{
AVFilterContext * ctx = link - > dst ;
AVFilterLink * outlink = ctx - > outputs [ 0 ] ;
AVFrame * out ;
int ret ;
ret = scale_frame ( link , in , & out ) ;
if ( out )
return ff_filter_frame ( outlink , out ) ;
return ret ;
2009-11-11 23:50:21 +00:00
}
2015-08-15 16:38:06 +00:00
static int filter_frame_ref ( AVFilterLink * link , AVFrame * in )
{
2019-12-15 13:26:06 +00:00
ScaleContext * scale = link - > dst - > priv ;
2015-08-15 16:38:06 +00:00
AVFilterLink * outlink = link - > dst - > outputs [ 1 ] ;
2019-12-08 10:24:28 +00:00
int frame_changed ;
frame_changed = in - > width ! = link - > w | |
in - > height ! = link - > h | |
in - > format ! = link - > format | |
in - > sample_aspect_ratio . den ! = link - > sample_aspect_ratio . den | |
in - > sample_aspect_ratio . num ! = link - > sample_aspect_ratio . num ;
if ( frame_changed ) {
link - > format = in - > format ;
link - > w = in - > width ;
link - > h = in - > height ;
link - > sample_aspect_ratio . num = in - > sample_aspect_ratio . num ;
link - > sample_aspect_ratio . den = in - > sample_aspect_ratio . den ;
config_props_ref ( outlink ) ;
}
2015-08-15 16:38:06 +00:00
2019-12-15 13:26:06 +00:00
if ( scale - > eval_mode = = EVAL_MODE_FRAME ) {
scale - > var_values [ VAR_N ] = link - > frame_count_out ;
scale - > var_values [ VAR_T ] = TS2T ( in - > pts , link - > time_base ) ;
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
# if FF_API_FRAME_PKT
FF_DISABLE_DEPRECATION_WARNINGS
2019-12-15 13:26:06 +00:00
scale - > var_values [ VAR_POS ] = in - > pkt_pos = = - 1 ? NAN : in - > pkt_pos ;
lavu/frame: deprecate AVFrame.pkt_{pos,size}
These fields are supposed to store information about the packet the
frame was decoded from, specifically the byte offset it was stored at
and its size.
However,
- the fields are highly ad-hoc - there is no strong reason why
specifically those (and not any other) packet properties should have a
dedicated field in AVFrame; unlike e.g. the timestamps, there is no
fundamental link between coded packet offset/size and decoded frames
- they only make sense for frames produced by decoding demuxed packets,
and even then it is not always the case that the encoded data was
stored in the file as a contiguous sequence of bytes (in order for pos
to be well-defined)
- pkt_pos was added without much explanation, apparently to allow
passthrough of this information through lavfi in order to handle byte
seeking in ffplay. That is now implemented using arbitrary user data
passthrough in AVFrame.opaque_ref.
- several filters use pkt_pos as a variable available to user-supplied
expressions, but there seems to be no established motivation for using them.
- pkt_size was added for use in ffprobe, but that too is now handled
without using this field. Additonally, the values of this field
produced by libavcodec are flawed, as described in the previous
ffprobe conversion commit.
In summary - these fields are ill-defined and insufficiently motivated,
so deprecate them.
2023-03-10 09:48:34 +00:00
FF_ENABLE_DEPRECATION_WARNINGS
# endif
2019-12-15 13:26:06 +00:00
}
2015-08-15 16:38:06 +00:00
return ff_filter_frame ( outlink , in ) ;
}
2015-07-21 10:45:43 +00:00
static int process_command ( AVFilterContext * ctx , const char * cmd , const char * args ,
char * res , int res_len , int flags )
{
ScaleContext * scale = ctx - > priv ;
2019-12-31 11:40:58 +00:00
char * str_expr ;
AVExpr * * pexpr_ptr ;
int ret , w , h ;
2015-07-21 10:45:43 +00:00
2019-12-31 11:40:58 +00:00
w = ! strcmp ( cmd , " width " ) | | ! strcmp ( cmd , " w " ) ;
h = ! strcmp ( cmd , " height " ) | | ! strcmp ( cmd , " h " ) ;
2015-07-21 10:45:43 +00:00
2019-12-31 11:40:58 +00:00
if ( w | | h ) {
str_expr = w ? scale - > w_expr : scale - > h_expr ;
pexpr_ptr = w ? & scale - > w_pexpr : & scale - > h_pexpr ;
2015-07-21 10:45:43 +00:00
2019-12-31 11:40:58 +00:00
ret = scale_parse_expr ( ctx , str_expr , pexpr_ptr , cmd , args ) ;
2015-07-21 10:45:43 +00:00
} else
ret = AVERROR ( ENOSYS ) ;
2019-12-31 11:40:58 +00:00
if ( ret < 0 )
av_log ( ctx , AV_LOG_ERROR , " Failed to process command. Continuing with existing parameters. \n " ) ;
2015-07-21 10:45:43 +00:00
return ret ;
}
2020-05-27 13:34:07 +00:00
static const AVClass * child_class_iterate ( void * * iter )
{
const AVClass * c = * iter ? NULL : sws_get_class ( ) ;
* iter = ( void * ) ( uintptr_t ) c ;
return c ;
}
2013-08-15 20:42:56 +00:00
2023-01-06 14:16:31 +00:00
static void * child_next ( void * obj , void * prev )
{
ScaleContext * s = obj ;
if ( ! prev )
return s - > sws_opts ;
return NULL ;
}
2013-02-25 20:21:29 +00:00
# define OFFSET(x) offsetof(ScaleContext, x)
2013-04-10 18:29:25 +00:00
# define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
2020-01-11 01:31:40 +00:00
# define TFLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
2013-04-10 18:29:25 +00:00
static const AVOption scale_options [ ] = {
2020-01-11 01:31:40 +00:00
{ " w " , " Output video width " , OFFSET ( w_expr ) , AV_OPT_TYPE_STRING , . flags = TFLAGS } ,
{ " width " , " Output video width " , OFFSET ( w_expr ) , AV_OPT_TYPE_STRING , . flags = TFLAGS } ,
{ " h " , " Output video height " , OFFSET ( h_expr ) , AV_OPT_TYPE_STRING , . flags = TFLAGS } ,
{ " height " , " Output video height " , OFFSET ( h_expr ) , AV_OPT_TYPE_STRING , . flags = TFLAGS } ,
2021-08-04 16:35:02 +00:00
{ " flags " , " Flags to pass to libswscale " , OFFSET ( flags_str ) , AV_OPT_TYPE_STRING , { . str = " " } , . flags = FLAGS } ,
2015-11-21 21:04:54 +00:00
{ " interl " , " set interlacing " , OFFSET ( interlaced ) , AV_OPT_TYPE_BOOL , { . i64 = 0 } , - 1 , 1 , FLAGS } ,
2013-04-10 18:29:25 +00:00
{ " size " , " set video size " , OFFSET ( size_str ) , AV_OPT_TYPE_STRING , { . str = NULL } , 0 , FLAGS } ,
{ " s " , " set video size " , OFFSET ( size_str ) , AV_OPT_TYPE_STRING , { . str = NULL } , 0 , FLAGS } ,
2019-07-05 04:00:12 +00:00
{ " in_color_matrix " , " set input YCbCr type " , OFFSET ( in_color_matrix ) , AV_OPT_TYPE_STRING , { . str = " auto " } , . flags = FLAGS , " color " } ,
{ " out_color_matrix " , " set output YCbCr type " , OFFSET ( out_color_matrix ) , AV_OPT_TYPE_STRING , { . str = NULL } , . flags = FLAGS , " color " } ,
{ " auto " , NULL , 0 , AV_OPT_TYPE_CONST , { . str = " auto " } , 0 , 0 , FLAGS , " color " } ,
{ " bt601 " , NULL , 0 , AV_OPT_TYPE_CONST , { . str = " bt601 " } , 0 , 0 , FLAGS , " color " } ,
{ " bt470 " , NULL , 0 , AV_OPT_TYPE_CONST , { . str = " bt470 " } , 0 , 0 , FLAGS , " color " } ,
{ " smpte170m " , NULL , 0 , AV_OPT_TYPE_CONST , { . str = " smpte170m " } , 0 , 0 , FLAGS , " color " } ,
{ " bt709 " , NULL , 0 , AV_OPT_TYPE_CONST , { . str = " bt709 " } , 0 , 0 , FLAGS , " color " } ,
{ " fcc " , NULL , 0 , AV_OPT_TYPE_CONST , { . str = " fcc " } , 0 , 0 , FLAGS , " color " } ,
{ " smpte240m " , NULL , 0 , AV_OPT_TYPE_CONST , { . str = " smpte240m " } , 0 , 0 , FLAGS , " color " } ,
{ " bt2020 " , NULL , 0 , AV_OPT_TYPE_CONST , { . str = " bt2020 " } , 0 , 0 , FLAGS , " color " } ,
2013-07-20 20:12:42 +00:00
{ " in_range " , " set input color range " , OFFSET ( in_range ) , AV_OPT_TYPE_INT , { . i64 = AVCOL_RANGE_UNSPECIFIED } , 0 , 2 , FLAGS , " range " } ,
{ " out_range " , " set output color range " , OFFSET ( out_range ) , AV_OPT_TYPE_INT , { . i64 = AVCOL_RANGE_UNSPECIFIED } , 0 , 2 , FLAGS , " range " } ,
{ " auto " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_UNSPECIFIED } , 0 , 0 , FLAGS , " range " } ,
2017-12-08 19:35:08 +00:00
{ " unknown " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_UNSPECIFIED } , 0 , 0 , FLAGS , " range " } ,
2013-07-20 20:12:42 +00:00
{ " full " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_JPEG } , 0 , 0 , FLAGS , " range " } ,
2017-12-08 19:35:08 +00:00
{ " limited " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_MPEG } , 0 , 0 , FLAGS , " range " } ,
2013-07-20 20:12:42 +00:00
{ " jpeg " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_JPEG } , 0 , 0 , FLAGS , " range " } ,
{ " mpeg " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_MPEG } , 0 , 0 , FLAGS , " range " } ,
2013-10-23 10:50:07 +00:00
{ " tv " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_MPEG } , 0 , 0 , FLAGS , " range " } ,
{ " pc " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_JPEG } , 0 , 0 , FLAGS , " range " } ,
2014-09-21 10:12:50 +00:00
{ " in_v_chr_pos " , " input vertical chroma position in luma grid/256 " , OFFSET ( in_v_chr_pos ) , AV_OPT_TYPE_INT , { . i64 = - 513 } , - 513 , 512 , FLAGS } ,
{ " in_h_chr_pos " , " input horizontal chroma position in luma grid/256 " , OFFSET ( in_h_chr_pos ) , AV_OPT_TYPE_INT , { . i64 = - 513 } , - 513 , 512 , FLAGS } ,
{ " out_v_chr_pos " , " output vertical chroma position in luma grid/256 " , OFFSET ( out_v_chr_pos ) , AV_OPT_TYPE_INT , { . i64 = - 513 } , - 513 , 512 , FLAGS } ,
{ " out_h_chr_pos " , " output horizontal chroma position in luma grid/256 " , OFFSET ( out_h_chr_pos ) , AV_OPT_TYPE_INT , { . i64 = - 513 } , - 513 , 512 , FLAGS } ,
2013-08-03 23:30:00 +00:00
{ " force_original_aspect_ratio " , " decrease or increase w/h if necessary to keep the original AR " , OFFSET ( force_original_aspect_ratio ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 2 , FLAGS , " force_oar " } ,
{ " disable " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = 0 } , 0 , 0 , FLAGS , " force_oar " } ,
{ " decrease " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = 1 } , 0 , 0 , FLAGS , " force_oar " } ,
{ " increase " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = 2 } , 0 , 0 , FLAGS , " force_oar " } ,
2019-08-12 13:58:14 +00:00
{ " force_divisible_by " , " enforce that the output resolution is divisible by a defined integer when force_original_aspect_ratio is used " , OFFSET ( force_divisible_by ) , AV_OPT_TYPE_INT , { . i64 = 1 } , 1 , 256 , FLAGS } ,
2023-01-06 14:16:31 +00:00
{ " param0 " , " Scaler param 0 " , OFFSET ( param [ 0 ] ) , AV_OPT_TYPE_DOUBLE , { . dbl = DBL_MAX } , - DBL_MAX , DBL_MAX , FLAGS } ,
{ " param1 " , " Scaler param 1 " , OFFSET ( param [ 1 ] ) , AV_OPT_TYPE_DOUBLE , { . dbl = DBL_MAX } , - DBL_MAX , DBL_MAX , FLAGS } ,
2016-01-18 17:44:09 +00:00
{ " eval " , " specify when to evaluate expressions " , OFFSET ( eval_mode ) , AV_OPT_TYPE_INT , { . i64 = EVAL_MODE_INIT } , 0 , EVAL_MODE_NB - 1 , FLAGS , " eval " } ,
{ " init " , " eval expressions once during initialization " , 0 , AV_OPT_TYPE_CONST , { . i64 = EVAL_MODE_INIT } , . flags = FLAGS , . unit = " eval " } ,
{ " frame " , " eval expressions during initialization and per-frame " , 0 , AV_OPT_TYPE_CONST , { . i64 = EVAL_MODE_FRAME } , . flags = FLAGS , . unit = " eval " } ,
2013-09-07 12:13:50 +00:00
{ NULL }
2013-02-25 20:21:29 +00:00
} ;
2013-08-15 20:42:56 +00:00
static const AVClass scale_class = {
2021-09-13 21:02:37 +00:00
. class_name = " scale(2ref) " ,
2013-08-15 20:42:56 +00:00
. item_name = av_default_item_name ,
. option = scale_options ,
. version = LIBAVUTIL_VERSION_INT ,
2014-07-28 03:15:16 +00:00
. category = AV_CLASS_CATEGORY_FILTER ,
2020-05-27 13:34:07 +00:00
. child_class_iterate = child_class_iterate ,
2023-01-06 14:16:31 +00:00
. child_next = child_next ,
2013-08-15 20:42:56 +00:00
} ;
2013-02-25 20:21:29 +00:00
2012-07-24 13:14:01 +00:00
static const AVFilterPad avfilter_vf_scale_inputs [ ] = {
{
2013-09-07 12:13:50 +00:00
. name = " default " ,
. type = AVMEDIA_TYPE_VIDEO ,
2012-11-29 00:19:35 +00:00
. filter_frame = filter_frame ,
2012-07-24 13:14:01 +00:00
} ,
} ;
static const AVFilterPad avfilter_vf_scale_outputs [ ] = {
{
. name = " default " ,
. type = AVMEDIA_TYPE_VIDEO ,
. config_props = config_props ,
} ,
} ;
2021-04-19 16:33:56 +00:00
const AVFilter ff_vf_scale = {
2015-07-21 10:45:43 +00:00
. name = " scale " ,
. description = NULL_IF_CONFIG_SMALL ( " Scale the input video size and/or convert the image format. " ) ,
2023-01-06 14:16:31 +00:00
. preinit = preinit ,
. init = init ,
2015-07-21 10:45:43 +00:00
. uninit = uninit ,
. priv_size = sizeof ( ScaleContext ) ,
. priv_class = & scale_class ,
2021-08-12 11:05:31 +00:00
FILTER_INPUTS ( avfilter_vf_scale_inputs ) ,
FILTER_OUTPUTS ( avfilter_vf_scale_outputs ) ,
2021-09-27 10:07:35 +00:00
FILTER_QUERY_FUNC ( query_formats ) ,
2015-07-21 10:45:43 +00:00
. process_command = process_command ,
2009-11-11 23:50:21 +00:00
} ;
2015-08-15 16:38:06 +00:00
static const AVFilterPad avfilter_vf_scale2ref_inputs [ ] = {
{
. name = " default " ,
. type = AVMEDIA_TYPE_VIDEO ,
. filter_frame = filter_frame ,
} ,
{
. name = " ref " ,
. type = AVMEDIA_TYPE_VIDEO ,
. filter_frame = filter_frame_ref ,
} ,
} ;
static const AVFilterPad avfilter_vf_scale2ref_outputs [ ] = {
{
. name = " default " ,
. type = AVMEDIA_TYPE_VIDEO ,
. config_props = config_props ,
2015-08-18 13:10:30 +00:00
. request_frame = request_frame ,
2015-08-15 16:38:06 +00:00
} ,
{
. name = " ref " ,
. type = AVMEDIA_TYPE_VIDEO ,
. config_props = config_props_ref ,
2015-08-18 13:10:30 +00:00
. request_frame = request_frame_ref ,
2015-08-15 16:38:06 +00:00
} ,
} ;
2021-04-19 16:33:56 +00:00
const AVFilter ff_vf_scale2ref = {
2015-08-15 16:38:06 +00:00
. name = " scale2ref " ,
. description = NULL_IF_CONFIG_SMALL ( " Scale the input video size and/or convert the image format to the given reference. " ) ,
2023-01-06 14:16:31 +00:00
. preinit = preinit ,
. init = init ,
2015-08-15 16:38:06 +00:00
. uninit = uninit ,
. priv_size = sizeof ( ScaleContext ) ,
2021-09-13 21:02:37 +00:00
. priv_class = & scale_class ,
2021-08-12 11:05:31 +00:00
FILTER_INPUTS ( avfilter_vf_scale2ref_inputs ) ,
FILTER_OUTPUTS ( avfilter_vf_scale2ref_outputs ) ,
2021-09-27 10:07:35 +00:00
FILTER_QUERY_FUNC ( query_formats ) ,
2015-08-15 16:38:06 +00:00
. process_command = process_command ,
} ;