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mpv/libmpdemux/demuxer.c
ods15 d59f67f879 fix brokeness caused by demuxer patch, this code is useless for 
any case other than avi and should not be run even then.
patch by Uoti Urpala (urpala BANG cc MEEP helsinki MEEP fi)


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16199 b3059339-0415-0410-9bf9-f77b7e298cf2
2005-08-11 17:01:13 +00:00

929 lines
27 KiB
C
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//=================== DEMUXER v2.5 =========================
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "../m_config.h"
#include "stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "mf.h"
#include "../libaf/af_format.h"
#include "../libvo/fastmemcpy.h"
// Demuxer list
extern demuxer_desc_t demuxer_desc_rawaudio;
extern demuxer_desc_t demuxer_desc_rawvideo;
extern demuxer_desc_t demuxer_desc_tv;
extern demuxer_desc_t demuxer_desc_mf;
extern demuxer_desc_t demuxer_desc_avi;
extern demuxer_desc_t demuxer_desc_y4m;
extern demuxer_desc_t demuxer_desc_asf;
extern demuxer_desc_t demuxer_desc_nsv;
extern demuxer_desc_t demuxer_desc_nuv;
extern demuxer_desc_t demuxer_desc_real;
extern demuxer_desc_t demuxer_desc_smjpeg;
extern demuxer_desc_t demuxer_desc_matroska;
extern demuxer_desc_t demuxer_desc_realaudio;
extern demuxer_desc_t demuxer_desc_vqf;
extern demuxer_desc_t demuxer_desc_mov;
extern demuxer_desc_t demuxer_desc_vivo;
extern demuxer_desc_t demuxer_desc_fli;
extern demuxer_desc_t demuxer_desc_film;
extern demuxer_desc_t demuxer_desc_roq;
extern demuxer_desc_t demuxer_desc_gif;
extern demuxer_desc_t demuxer_desc_ogg;
extern demuxer_desc_t demuxer_desc_avs;
extern demuxer_desc_t demuxer_desc_pva;
extern demuxer_desc_t demuxer_desc_mpeg_ts;
extern demuxer_desc_t demuxer_desc_lmlm4;
extern demuxer_desc_t demuxer_desc_mpeg_ps;
extern demuxer_desc_t demuxer_desc_mpeg_pes;
extern demuxer_desc_t demuxer_desc_mpeg_es;
extern demuxer_desc_t demuxer_desc_mpeg4_es;
extern demuxer_desc_t demuxer_desc_h264_es;
extern demuxer_desc_t demuxer_desc_rawdv;
extern demuxer_desc_t demuxer_desc_audio;
extern demuxer_desc_t demuxer_desc_xmms;
extern demuxer_desc_t demuxer_desc_mpeg_ty;
extern demuxer_desc_t demuxer_desc_rtp;
extern demuxer_desc_t demuxer_desc_lavf;
extern demuxer_desc_t demuxer_desc_aac;
demuxer_desc_t* demuxer_list[] = {
&demuxer_desc_rawaudio,
&demuxer_desc_rawvideo,
#ifdef USE_TV
&demuxer_desc_tv,
#endif
&demuxer_desc_mf,
&demuxer_desc_avi,
&demuxer_desc_y4m,
&demuxer_desc_asf,
&demuxer_desc_nsv,
&demuxer_desc_nuv,
&demuxer_desc_real,
&demuxer_desc_smjpeg,
#ifdef HAVE_MATROSKA
&demuxer_desc_matroska,
#endif
&demuxer_desc_realaudio,
&demuxer_desc_vqf,
&demuxer_desc_mov,
&demuxer_desc_vivo,
&demuxer_desc_fli,
&demuxer_desc_film,
&demuxer_desc_roq,
#ifdef HAVE_GIF
&demuxer_desc_gif,
#endif
#ifdef HAVE_OGGVORBIS
&demuxer_desc_ogg,
#endif
#ifdef USE_WIN32DLL
&demuxer_desc_avs,
#endif
&demuxer_desc_pva,
&demuxer_desc_mpeg_ts,
&demuxer_desc_lmlm4,
&demuxer_desc_mpeg_ps,
&demuxer_desc_mpeg_pes,
&demuxer_desc_mpeg_es,
&demuxer_desc_mpeg4_es,
&demuxer_desc_h264_es,
#ifdef HAVE_LIBDV095
&demuxer_desc_rawdv,
#endif
&demuxer_desc_audio,
#ifdef HAVE_XMMS
&demuxer_desc_xmms,
#endif
&demuxer_desc_mpeg_ty,
#ifdef STREAMING_LIVE_DOT_COM
&demuxer_desc_rtp,
#endif
#ifdef USE_LIBAVFORMAT
&demuxer_desc_lavf,
#endif
&demuxer_desc_aac,
NULL
};
// Should be set to 1 by demux module if ids it passes to new_sh_audio and
// new_sh_video don't match aids and vids it accepts from the command line
int demux_aid_vid_mismatch = 0;
void free_demuxer_stream(demux_stream_t *ds){
ds_free_packs(ds);
free(ds);
}
demux_stream_t* new_demuxer_stream(struct demuxer_st *demuxer,int id){
demux_stream_t* ds=malloc(sizeof(demux_stream_t));
ds->buffer_pos=ds->buffer_size=0;
ds->buffer=NULL;
ds->pts=0;
ds->pts_bytes=0;
ds->eof=0;
ds->pos=0;
ds->dpos=0;
ds->pack_no=0;
//---------------
ds->packs=0;
ds->bytes=0;
ds->first=ds->last=ds->current=NULL;
ds->id=id;
ds->demuxer=demuxer;
//----------------
ds->asf_seq=-1;
ds->asf_packet=NULL;
//----------------
ds->ss_mul=ds->ss_div=0;
//----------------
ds->sh=NULL;
return ds;
}
/**
* Get demuxer description structure for a given demuxer type
*
* @param file_format type of the demuxer
* @return structure for the demuxer, NULL if not found
*/
static demuxer_desc_t* get_demuxer_desc_from_type(int file_format)
{
int i;
for (i = 0; demuxer_list[i]; i++)
if (file_format == demuxer_list[i]->type)
return demuxer_list[i];
return NULL;
}
demuxer_t* new_demuxer(stream_t *stream,int type,int a_id,int v_id,int s_id,char *filename){
demuxer_t *d=malloc(sizeof(demuxer_t));
memset(d,0,sizeof(demuxer_t));
d->stream=stream;
d->movi_start=stream->start_pos;
d->movi_end=stream->end_pos;
d->seekable=1;
d->synced=0;
d->filepos=0;
d->audio=new_demuxer_stream(d,a_id);
d->video=new_demuxer_stream(d,v_id);
d->sub=new_demuxer_stream(d,s_id);
d->type=type;
if(type)
if (!(d->desc = get_demuxer_desc_from_type(type)))
mp_msg(MSGT_DEMUXER,MSGL_ERR,"BUG! Invalid demuxer type in new_demuxer(), big troubles ahead.");
if(filename) // Filename hack for avs_check_file
d->filename=strdup(filename);
stream_reset(stream);
stream_seek(stream,stream->start_pos);
return d;
}
sh_audio_t* new_sh_audio(demuxer_t *demuxer,int id){
if(id > MAX_A_STREAMS-1 || id < 0)
{
mp_msg(MSGT_DEMUXER,MSGL_WARN,"Requested audio stream id overflow (%d > %d)\n",
id, MAX_A_STREAMS);
return NULL;
}
if(demuxer->a_streams[id]){
mp_msg(MSGT_DEMUXER,MSGL_WARN,MSGTR_AudioStreamRedefined,id);
} else {
sh_audio_t *sh;
mp_msg(MSGT_DEMUXER,MSGL_V,MSGTR_FoundAudioStream,id);
demuxer->a_streams[id]=malloc(sizeof(sh_audio_t));
memset(demuxer->a_streams[id],0,sizeof(sh_audio_t));
sh = demuxer->a_streams[id];
// set some defaults
sh->samplesize=2;
sh->sample_format=AF_FORMAT_S16_NE;
sh->audio_out_minsize=8192;/* default size, maybe not enough for Win32/ACM*/
if (identify && !demux_aid_vid_mismatch)
mp_msg(MSGT_GLOBAL, MSGL_INFO, "ID_AUDIO_ID=%d\n", id);
}
return demuxer->a_streams[id];
}
void free_sh_audio(sh_audio_t* sh){
mp_msg(MSGT_DEMUXER,MSGL_DBG2,"DEMUXER: freeing sh_audio at %p\n",sh);
if(sh->wf) free(sh->wf);
free(sh);
}
sh_video_t* new_sh_video(demuxer_t *demuxer,int id){
if(id > MAX_V_STREAMS-1 || id < 0)
{
mp_msg(MSGT_DEMUXER,MSGL_WARN,"Requested video stream id overflow (%d > %d)\n",
id, MAX_V_STREAMS);
return NULL;
}
if(demuxer->v_streams[id]){
mp_msg(MSGT_DEMUXER,MSGL_WARN,MSGTR_VideoStreamRedefined,id);
} else {
mp_msg(MSGT_DEMUXER,MSGL_V,MSGTR_FoundVideoStream,id);
demuxer->v_streams[id]=malloc(sizeof(sh_video_t));
memset(demuxer->v_streams[id],0,sizeof(sh_video_t));
if (identify && !demux_aid_vid_mismatch)
mp_msg(MSGT_GLOBAL, MSGL_INFO, "ID_VIDEO_ID=%d\n", id);
}
return demuxer->v_streams[id];
}
void free_sh_video(sh_video_t* sh){
mp_msg(MSGT_DEMUXER,MSGL_DBG2,"DEMUXER: freeing sh_video at %p\n",sh);
if(sh->bih) free(sh->bih);
free(sh);
}
void free_demuxer(demuxer_t *demuxer){
int i;
mp_msg(MSGT_DEMUXER,MSGL_DBG2,"DEMUXER: freeing demuxer at %p\n",demuxer);
if(demuxer->desc->close)
demuxer->desc->close(demuxer);
// Very ugly hack to make it behave like old implementation
if (demuxer->desc->type == DEMUXER_TYPE_DEMUXERS)
return;
// free streams:
for(i = 0; i < MAX_A_STREAMS; i++)
if(demuxer->a_streams[i]) free_sh_audio(demuxer->a_streams[i]);
for(i = 0; i < MAX_V_STREAMS; i++)
if(demuxer->v_streams[i]) free_sh_video(demuxer->v_streams[i]);
//if(sh_audio) free_sh_audio(sh_audio);
//if(sh_video) free_sh_video(sh_video);
// free demuxers:
free_demuxer_stream(demuxer->audio);
free_demuxer_stream(demuxer->video);
free_demuxer_stream(demuxer->sub);
if(demuxer->info) {
for(i=0;demuxer->info[i] != NULL; i++)
free(demuxer->info[i]);
free(demuxer->info);
}
if(demuxer->filename)
free(demuxer->filename);
free(demuxer);
}
void ds_add_packet(demux_stream_t *ds,demux_packet_t* dp){
// demux_packet_t* dp=new_demux_packet(len);
// stream_read(stream,dp->buffer,len);
// dp->pts=pts; //(float)pts/90000.0f;
// dp->pos=pos;
// append packet to DS stream:
++ds->packs;
ds->bytes+=dp->len;
if(ds->last){
// next packet in stream
ds->last->next=dp;
ds->last=dp;
} else {
// first packet in stream
ds->first=ds->last=dp;
}
mp_dbg(MSGT_DEMUXER,MSGL_DBG2,"DEMUX: Append packet to %s, len=%d pts=%5.3f pos=%u [packs: A=%d V=%d]\n",
(ds==ds->demuxer->audio)?"d_audio":"d_video",
dp->len,dp->pts,(unsigned int)dp->pos,ds->demuxer->audio->packs,ds->demuxer->video->packs);
}
void ds_read_packet(demux_stream_t *ds,stream_t *stream,int len,float pts,off_t pos,int flags){
demux_packet_t* dp=new_demux_packet(len);
len = stream_read(stream,dp->buffer,len);
resize_demux_packet(dp, len);
dp->pts=pts; //(float)pts/90000.0f;
dp->pos=pos;
dp->flags=flags;
// append packet to DS stream:
ds_add_packet(ds,dp);
}
// return value:
// 0 = EOF or no stream found or invalid type
// 1 = successfully read a packet
int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds){
// Note: parameter 'ds' can be NULL!
// printf("demux->type=%d\n",demux->type);
return demux->desc->fill_buffer(demux, ds);
}
// return value:
// 0 = EOF
// 1 = succesfull
int ds_fill_buffer(demux_stream_t *ds){
demuxer_t *demux=ds->demuxer;
if(ds->current) free_demux_packet(ds->current);
if(verbose>2){
if(ds==demux->audio) mp_dbg(MSGT_DEMUXER,MSGL_DBG3,"ds_fill_buffer(d_audio) called\n");else
if(ds==demux->video) mp_dbg(MSGT_DEMUXER,MSGL_DBG3,"ds_fill_buffer(d_video) called\n");else
if(ds==demux->sub) mp_dbg(MSGT_DEMUXER,MSGL_DBG3,"ds_fill_buffer(d_sub) called\n");else
mp_dbg(MSGT_DEMUXER,MSGL_DBG3,"ds_fill_buffer(unknown 0x%X) called\n",(unsigned int)ds);
}
while(1){
if(ds->packs){
demux_packet_t *p=ds->first;
// copy useful data:
ds->buffer=p->buffer;
ds->buffer_pos=0;
ds->buffer_size=p->len;
ds->pos=p->pos;
ds->dpos+=p->len; // !!!
++ds->pack_no;
if(p->pts){
ds->pts=p->pts;
ds->pts_bytes=0;
}
ds->pts_bytes+=p->len; // !!!
ds->flags=p->flags;
// unlink packet:
ds->bytes-=p->len;
ds->current=p;
ds->first=p->next;
if(!ds->first) ds->last=NULL;
--ds->packs;
return 1; //ds->buffer_size;
}
if(demux->audio->packs>=MAX_PACKS || demux->audio->bytes>=MAX_PACK_BYTES){
mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_TooManyAudioInBuffer,demux->audio->packs,demux->audio->bytes);
mp_msg(MSGT_DEMUXER,MSGL_HINT,MSGTR_MaybeNI);
break;
}
if(demux->video->packs>=MAX_PACKS || demux->video->bytes>=MAX_PACK_BYTES){
mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_TooManyVideoInBuffer,demux->video->packs,demux->video->bytes);
mp_msg(MSGT_DEMUXER,MSGL_HINT,MSGTR_MaybeNI);
break;
}
if(!demux_fill_buffer(demux,ds)){
mp_dbg(MSGT_DEMUXER,MSGL_DBG2,"ds_fill_buffer()->demux_fill_buffer() failed\n");
break; // EOF
}
}
ds->buffer_pos=ds->buffer_size=0;
ds->buffer=NULL;
ds->current=NULL;
mp_msg(MSGT_DEMUXER,MSGL_V,"ds_fill_buffer: EOF reached (stream: %s) \n",ds==demux->audio?"audio":"video");
ds->eof=1;
return 0;
}
int demux_read_data(demux_stream_t *ds,unsigned char* mem,int len){
int x;
int bytes=0;
while(len>0){
x=ds->buffer_size-ds->buffer_pos;
if(x==0){
if(!ds_fill_buffer(ds)) return bytes;
} else {
if(x>len) x=len;
if(mem) memcpy(mem+bytes,&ds->buffer[ds->buffer_pos],x);
bytes+=x;len-=x;ds->buffer_pos+=x;
}
}
return bytes;
}
int demux_read_data_pack(demux_stream_t *ds,unsigned char* mem,int len){
int x;
int bytes=0;
while(len>0){
x=ds->buffer_size-ds->buffer_pos;
if(x==0){
if(!ds_fill_buffer(ds)) return bytes;
} else {
if(x>len) x=len;
if(mem) memcpy(mem+bytes,&ds->buffer[ds->buffer_pos],x);
bytes+=x;len-=x;ds->buffer_pos+=x;
return bytes; // stop at end of package! (for correct timestamping)
}
}
return bytes;
}
void ds_free_packs(demux_stream_t *ds){
demux_packet_t *dp=ds->first;
while(dp){
demux_packet_t *dn=dp->next;
free_demux_packet(dp);
dp=dn;
}
if(ds->asf_packet){
// free unfinished .asf fragments:
free(ds->asf_packet->buffer);
free(ds->asf_packet);
ds->asf_packet=NULL;
}
ds->first=ds->last=NULL;
ds->packs=0; // !!!!!
ds->bytes=0;
if(ds->current) free_demux_packet(ds->current);
ds->current=NULL;
ds->buffer=NULL;
ds->buffer_pos=ds->buffer_size;
ds->pts=0; ds->pts_bytes=0;
}
int ds_get_packet(demux_stream_t *ds,unsigned char **start){
while(1){
int len;
if(ds->buffer_pos>=ds->buffer_size){
if(!ds_fill_buffer(ds)){
// EOF
*start = NULL;
return -1;
}
}
len=ds->buffer_size-ds->buffer_pos;
*start = &ds->buffer[ds->buffer_pos];
ds->buffer_pos+=len;
return len;
}
}
int ds_get_packet_sub(demux_stream_t *ds,unsigned char **start){
while(1){
int len;
if(ds->buffer_pos>=ds->buffer_size){
*start = NULL;
if(!ds->packs) return -1; // no sub
if(!ds_fill_buffer(ds)) return -1; // EOF
}
len=ds->buffer_size-ds->buffer_pos;
*start = &ds->buffer[ds->buffer_pos];
ds->buffer_pos+=len;
return len;
}
}
float ds_get_next_pts(demux_stream_t *ds) {
demuxer_t* demux = ds->demuxer;
while(!ds->first) {
if(demux->audio->packs>=MAX_PACKS || demux->audio->bytes>=MAX_PACK_BYTES){
mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_TooManyAudioInBuffer,demux->audio->packs,demux->audio->bytes);
mp_msg(MSGT_DEMUXER,MSGL_HINT,MSGTR_MaybeNI);
return -1;
}
if(demux->video->packs>=MAX_PACKS || demux->video->bytes>=MAX_PACK_BYTES){
mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_TooManyVideoInBuffer,demux->video->packs,demux->video->bytes);
mp_msg(MSGT_DEMUXER,MSGL_HINT,MSGTR_MaybeNI);
return -1;
}
if(!demux_fill_buffer(demux,ds))
return -1;
}
return ds->first->pts;
}
// ====================================================================
// commandline options, flags:
extern int force_ni;
extern int pts_from_bps;
//extern int audio_id;
//extern int video_id;
//extern int dvdsub_id;
void demuxer_help(void)
{
int i;
mp_msg(MSGT_DEMUXER, MSGL_INFO, "Available demuxers:\n");
mp_msg(MSGT_DEMUXER, MSGL_INFO, " demuxer: type info: (comment)\n");
for (i = 0; demuxer_list[i]; i++) {
if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Don't display special demuxers
continue;
if (demuxer_list[i]->comment && strlen(demuxer_list[i]->comment))
mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s (%s)\n",
demuxer_list[i]->name, demuxer_list[i]->type, demuxer_list[i]->info, demuxer_list[i]->comment);
else
mp_msg(MSGT_DEMUXER, MSGL_INFO, "%10s %2d %s\n",
demuxer_list[i]->name, demuxer_list[i]->type, demuxer_list[i]->info);
}
}
/**
* Get demuxer type for a given demuxer name
*
* @param demuxer_name string with demuxer name of demuxer number
* @return DEMUXER_TYPE_xxx, -1 if error or not found
*/
int get_demuxer_type_from_name(char *demuxer_name)
{
int i;
long type_int;
char *endptr;
for (i = 0; demuxer_list[i]; i++) {
if (demuxer_list[i]->type > DEMUXER_TYPE_MAX) // Can't select special demuxers from commandline
continue;
if (strcmp(demuxer_name, demuxer_list[i]->name) == 0)
return demuxer_list[i]->type;
}
// No match found, try to parse name as an integer (demuxer number)
type_int = strtol(demuxer_name, &endptr, 0);
if (*endptr) // Conversion failed
return -1;
if ((type_int > 0) && (type_int <= DEMUXER_TYPE_MAX))
return (int)type_int;
return -1;
}
int extension_parsing=1; // 0=off 1=mixed (used only for unstable formats)
/*
NOTE : Several demuxers may be opened at the same time so
demuxers should NEVER rely on an external var to enable them
self. If a demuxer can't do any autodection it should only use
file_format. The user can explictly set file_format with the -demuxer
option so there is really no need for another extra var.
For conivence an option can be added to set file_format directly
to the right type (ex: rawaudio,rawvideo).
Also the stream can override the file_format so a demuxer wich rely
on a special stream type can set file_format at the stream level
(ex: tv,mf).
*/
static demuxer_t* demux_open_stream(stream_t *stream,int file_format,int audio_id,int video_id,int dvdsub_id,char* filename){
//int file_format=(*file_format_ptr);
demuxer_t *demuxer=NULL;
sh_video_t *sh_video=NULL;
demuxer_desc_t *demuxer_desc;
int fformat;
int i;
//printf("demux_open(%p,%d,%d,%d,%d) \n",stream,file_format,audio_id,video_id,dvdsub_id);
// If somebody requested a demuxer check it
if (file_format) {
if ((demuxer_desc = get_demuxer_desc_from_type(file_format))) {
demuxer = new_demuxer(stream,demuxer_desc->type,audio_id,video_id,dvdsub_id,filename);
if (demuxer_desc->check_file) {
if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
if (fformat == demuxer_desc->type) {
// Move messages to demuxer detection code?
mp_msg(MSGT_DEMUXER, MSGL_INFO, MSGTR_Detected_XXX_FileFormat, demuxer_desc->shortdesc);
file_format = demuxer_desc->type = fformat;
} else {
// Format changed after check, recurse
free_demuxer(demuxer);
return demux_open_stream(stream,fformat,audio_id,video_id,dvdsub_id,filename);
}
} else {
// Check failed for forced demuxer, quit
free_demuxer(demuxer);
return NULL;
}
}
}
}
if (demuxer)
goto dmx_open;
// Test demuxers with safe file checks
for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
if (demuxer_desc->safe_check) {
demuxer = new_demuxer(stream,demuxer_desc->type,audio_id,video_id,dvdsub_id,filename);
if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
if (fformat == demuxer_desc->type) {
mp_msg(MSGT_DEMUXER, MSGL_INFO, MSGTR_Detected_XXX_FileFormat, demuxer_desc->shortdesc);
file_format = fformat;
break;
} else {
// Format changed after check, recurse
free_demuxer(demuxer);
demuxer=demux_open_stream(stream,fformat,audio_id,video_id,dvdsub_id,filename);
if(demuxer) return demuxer; // done!
file_format = DEMUXER_TYPE_UNKNOWN;
}
} else {
free_demuxer(demuxer);
demuxer = NULL;
}
}
}
if (demuxer)
goto dmx_open;
// If no forced demuxer perform file extension based detection
// Ok. We're over the stable detectable fileformats, the next ones are a bit
// fuzzy. So by default (extension_parsing==1) try extension-based detection
// first:
if(file_format==DEMUXER_TYPE_UNKNOWN && filename && extension_parsing==1){
file_format=demuxer_type_by_filename(filename);
if(file_format!=DEMUXER_TYPE_UNKNOWN){
// we like recursion :)
demuxer=demux_open_stream(stream,file_format,audio_id,video_id,dvdsub_id,filename);
if(demuxer) return demuxer; // done!
file_format=DEMUXER_TYPE_UNKNOWN; // continue fuzzy guessing...
mp_msg(MSGT_DEMUXER,MSGL_V,"demuxer: continue fuzzy content-based format guessing...\n");
}
}
// Try detection for all other demuxers
for (i = 0; (demuxer_desc = demuxer_list[i]); i++) {
if (!demuxer_desc->safe_check && demuxer_desc->check_file) {
demuxer = new_demuxer(stream,demuxer_desc->type,audio_id,video_id,dvdsub_id,filename);
if ((fformat = demuxer_desc->check_file(demuxer)) != 0) {
if (fformat == demuxer_desc->type) {
mp_msg(MSGT_DEMUXER, MSGL_INFO, MSGTR_Detected_XXX_FileFormat, demuxer_desc->shortdesc);
file_format = fformat;
break;
} else {
// Format changed after check, recurse
free_demuxer(demuxer);
demuxer=demux_open_stream(stream,fformat,audio_id,video_id,dvdsub_id,filename);
if(demuxer) return demuxer; // done!
file_format = DEMUXER_TYPE_UNKNOWN;
}
} else {
free_demuxer(demuxer);
demuxer = NULL;
}
}
}
//=============== Unknown, exiting... ===========================
if(file_format==DEMUXER_TYPE_UNKNOWN || demuxer == NULL){
//mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_FormatNotRecognized); // will be done by mplayer.c after fallback to playlist-parsing
return NULL;
}
//====== File format recognized, set up these for compatibility: =========
dmx_open:
demuxer->file_format=file_format;
if (demuxer->desc->open)
if (!(demuxer = demuxer->desc->open(demuxer)))
return NULL;
if ((sh_video=demuxer->video->sh) && sh_video->bih)
mp_msg(MSGT_DEMUX,MSGL_INFO,"VIDEO: [%.4s] %ldx%ld %dbpp %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
(char *)&sh_video->bih->biCompression,
sh_video->bih->biWidth,
sh_video->bih->biHeight,
sh_video->bih->biBitCount,
sh_video->fps,
sh_video->i_bps*0.008f,
sh_video->i_bps/1024.0f );
return demuxer;
}
char* audio_stream = NULL;
char* sub_stream = NULL;
int demuxer_type = 0; // used by rawaudio and rawvideo
int audio_stream_cache = 0;
char *demuxer_name = NULL; // parameter from -demuxer
char *audio_demuxer_name = NULL; // parameter from -audio-demuxer
char *sub_demuxer_name = NULL; // parameter from -sub-demuxer
extern int hr_mp3_seek;
extern float stream_cache_min_percent;
extern float stream_cache_seek_min_percent;
demuxer_t* demux_open(stream_t *vs,int file_format,int audio_id,int video_id,int dvdsub_id,char* filename){
stream_t *as = NULL,*ss = NULL;
demuxer_t *vd,*ad = NULL,*sd = NULL;
int afmt =DEMUXER_TYPE_UNKNOWN,sfmt = DEMUXER_TYPE_UNKNOWN ;
int audio_demuxer_type = 0, sub_demuxer_type = 0;
demux_aid_vid_mismatch = 0;
if (demuxer_name && ((demuxer_type = get_demuxer_type_from_name(demuxer_name)) < 0)) {
mp_msg(MSGT_DEMUXER,MSGL_ERR,"-demuxer %s does not exist.\n",demuxer_name);
}
if (audio_demuxer_name && ((audio_demuxer_type = get_demuxer_type_from_name(audio_demuxer_name)) < 0)) {
mp_msg(MSGT_DEMUXER,MSGL_ERR,"-audio-demuxer %s does not exist.\n",audio_demuxer_name);
}
if (sub_demuxer_name && ((sub_demuxer_type = get_demuxer_type_from_name(sub_demuxer_name)) < 0)) {
mp_msg(MSGT_DEMUXER,MSGL_ERR,"-sub-demuxer %s does not exist.\n",sub_demuxer_name);
}
if(audio_stream) {
as = open_stream(audio_stream,0,&afmt);
if(!as) {
mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_CannotOpenAudioStream,audio_stream);
return NULL;
}
if(audio_stream_cache) {
if(!stream_enable_cache(as,audio_stream_cache*1024,audio_stream_cache*1024*(stream_cache_min_percent / 100.0),
audio_stream_cache*1024*(stream_cache_seek_min_percent / 100.0))) {
free_stream(as);
mp_msg(MSGT_DEMUXER,MSGL_ERR,"Can't enable audio stream cache\n");
return NULL;
}
}
}
if(sub_stream) {
ss = open_stream(sub_stream,0,&sfmt);
if(!ss) {
mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_CannotOpenSubtitlesStream,sub_stream);
return NULL;
}
}
vd = demux_open_stream(vs,demuxer_type ? demuxer_type : file_format,audio_stream ? -2 : audio_id,video_id, sub_stream ? -2 : dvdsub_id, filename);
if(!vd) {
if(as) free_stream(as);
if(ss) free_stream(ss);
return NULL;
}
if(as) {
ad = demux_open_stream(as,audio_demuxer_type ? audio_demuxer_type : afmt,audio_id,-2,-2, audio_stream);
if(!ad) {
mp_msg(MSGT_DEMUXER,MSGL_WARN,MSGTR_OpeningAudioDemuxerFailed,audio_stream);
free_stream(as);
}
else if(ad->audio->sh && ((sh_audio_t*)ad->audio->sh)->format == 0x55) // MP3
hr_mp3_seek=1; // Enable high res seeking
}
if(ss) {
sd = demux_open_stream(ss,sub_demuxer_type ? sub_demuxer_type : sfmt,-2,-2,dvdsub_id, sub_stream);
if(!sd) {
mp_msg(MSGT_DEMUXER,MSGL_WARN,MSGTR_OpeningSubtitlesDemuxerFailed,sub_stream);
free_stream(ss);
}
}
if(ad && sd)
return new_demuxers_demuxer(vd,ad,sd);
else if(ad)
return new_demuxers_demuxer(vd,ad,vd);
else if(sd)
return new_demuxers_demuxer(vd,vd,sd);
else
return vd;
}
int demux_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){
demux_stream_t *d_audio=demuxer->audio;
demux_stream_t *d_video=demuxer->video;
sh_audio_t *sh_audio=d_audio->sh;
sh_video_t *sh_video=d_video->sh;
if(!demuxer->seekable){
if(demuxer->file_format==DEMUXER_TYPE_AVI)
mp_msg(MSGT_SEEK,MSGL_WARN,MSGTR_CantSeekRawAVI);
#ifdef USE_TV
else if (demuxer->file_format==DEMUXER_TYPE_TV)
mp_msg(MSGT_SEEK,MSGL_WARN,MSGTR_TVInputNotSeekable);
#endif
else
mp_msg(MSGT_SEEK,MSGL_WARN,MSGTR_CantSeekFile);
return 0;
}
// clear demux buffers:
if(sh_audio){ ds_free_packs(d_audio);sh_audio->a_buffer_len=0;}
ds_free_packs(d_video);
demuxer->stream->eof=0; // clear eof flag
demuxer->video->eof=0;
demuxer->audio->eof=0;
#if 0
if(sh_audio) sh_audio->timer=sh_video->timer;
#else
if(sh_audio) sh_audio->delay=0;
if(sh_video) sh_video->timer=0; // !!!!!!
#endif
if (demuxer->desc->seek)
demuxer->desc->seek(demuxer,rel_seek_secs,flags);
return 1;
}
int demux_info_add(demuxer_t *demuxer, char *opt, char *param)
{
char **info = demuxer->info;
int n = 0;
for(n = 0; info && info[2*n] != NULL; n++)
{
if(!strcasecmp(opt,info[2*n]))
{
mp_msg(MSGT_DEMUX, MSGL_WARN,MSGTR_DemuxerInfoAlreadyPresent,opt);
return 0;
}
}
info = demuxer->info = (char**)realloc(info,(2*(n+2))*sizeof(char*));
info[2*n] = strdup(opt);
info[2*n+1] = strdup(param);
memset(&info[2*(n+1)],0,2*sizeof(char*));
return 1;
}
int demux_info_print(demuxer_t *demuxer)
{
char **info = demuxer->info;
int n;
if(!info)
return 0;
mp_msg(MSGT_DEMUX, MSGL_INFO,MSGTR_ClipInfo);
for(n = 0; info[2*n] != NULL ; n++)
{
mp_msg(MSGT_DEMUX, MSGL_INFO, " %s: %s\n",info[2*n],info[2*n+1]);
if (identify) {
mp_msg(MSGT_GLOBAL, MSGL_INFO, "ID_CLIP_INFO_NAME%d=%s\n", n, info[2*n]);
mp_msg(MSGT_GLOBAL, MSGL_INFO, "ID_CLIP_INFO_VALUE%d=%s\n", n, info[2*n+1]);
}
}
if (identify)
mp_msg(MSGT_GLOBAL, MSGL_INFO, "ID_CLIP_INFO_N=%d\n", n);
return 0;
}
char* demux_info_get(demuxer_t *demuxer, char *opt) {
int i;
char **info = demuxer->info;
for(i = 0; info && info[2*i] != NULL; i++) {
if(!strcasecmp(opt,info[2*i]))
return info[2*i+1];
}
return NULL;
}
int demux_control(demuxer_t *demuxer, int cmd, void *arg) {
if (demuxer->desc->control)
return demuxer->desc->control(demuxer,cmd,arg);
return DEMUXER_CTRL_NOTIMPL;
}
unsigned long demuxer_get_time_length(demuxer_t *demuxer){
unsigned long get_time_ans;
sh_video_t *sh_video = demuxer->video->sh;
// <= 0 means DEMUXER_CTRL_NOTIMPL or DEMUXER_CTRL_DONTKNOW
if (demux_control(demuxer, DEMUXER_CTRL_GET_TIME_LENGTH,(void *)&get_time_ans)<=0) {
if (sh_video && sh_video->i_bps)
get_time_ans = (demuxer->movi_end-demuxer->movi_start)/sh_video->i_bps;
else
get_time_ans=0;
}
return get_time_ans;
}
int demuxer_get_percent_pos(demuxer_t *demuxer){
int ans = 0;
int res = demux_control(demuxer, DEMUXER_CTRL_GET_PERCENT_POS, &ans);
int len = (demuxer->movi_end - demuxer->movi_start) / 100;
if (res <= 0) {
if (len > 0)
ans = (demuxer->filepos - demuxer->movi_start) / len;
else
ans = 0;
}
if (ans < 0) ans = 0;
if (ans > 100) ans = 100;
return ans;
}
int demuxer_switch_audio(demuxer_t *demuxer, int index){
int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_AUDIO, &index);
if (res == DEMUXER_CTRL_NOTIMPL)
index = demuxer->audio->id;
return index;
}
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