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Code Issues Releases Wiki Activity
e08173e7e1
mpv/libmpdemux/demuxer.c
uau 1c5d870414 Fix missing subtitles after seeking back 
Subtitle packets that had been demuxed but whose start time had not
yet been reached were left in the demuxer stream after seeking.
When using the default (non-libass) subtitle rendering this could
block subtitles from appearing as long as the playback position stayed
below the original one before seek. External subtitle files were not
affected.

Fixed by making seek code free all packets from the subtitle stream.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24698 b3059339-0415-0410-9bf9-f77b7e298cf2
2007-10-04 02:35:34 +00:00

1217 lines
38 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 "libvo/fastmemcpy.h"
#include "stream/stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "mf.h"
#include "libaf/af_format.h"
extern void resync_video_stream(sh_video_t *sh_video);
extern void resync_audio_stream(sh_audio_t *sh_audio);
// 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_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_nsv;
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_mpeg_gxf;
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_mpc;
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_lavf_preferred;
extern demuxer_desc_t demuxer_desc_aac;
extern demuxer_desc_t demuxer_desc_nut;
demuxer_desc_t* demuxer_list[] = {
&demuxer_desc_rawaudio,
&demuxer_desc_rawvideo,
#ifdef USE_TV
&demuxer_desc_tv,
#endif
&demuxer_desc_mf,
#ifdef USE_LIBAVFORMAT
&demuxer_desc_lavf_preferred,
#endif
&demuxer_desc_avi,
&demuxer_desc_y4m,
&demuxer_desc_asf,
&demuxer_desc_nsv,
&demuxer_desc_nuv,
&demuxer_desc_real,
&demuxer_desc_smjpeg,
&demuxer_desc_matroska,
&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_mpeg_gxf,
&demuxer_desc_mpeg4_es,
&demuxer_desc_h264_es,
#ifdef MUSEPACK
&demuxer_desc_mpc,
#endif
&demuxer_desc_audio,
&demuxer_desc_mpeg_ty,
#if defined(STREAMING_LIVE555) || defined(LIBNEMESI)
&demuxer_desc_rtp,
#endif
#ifdef USE_LIBAVFORMAT
&demuxer_desc_lavf,
#endif
#ifdef HAVE_LIBDV095
&demuxer_desc_rawdv,
#endif
&demuxer_desc_aac,
#ifdef HAVE_LIBNUT
&demuxer_desc_nut,
#endif
#ifdef HAVE_XMMS
&demuxer_desc_xmms,
#endif
NULL
};
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->stream_pts = MP_NOPTS_VALUE;
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;
}
extern int dvdsub_id;
sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid) {
if (id > MAX_S_STREAMS - 1 || id < 0) {
mp_msg(MSGT_DEMUXER,MSGL_WARN,"Requested sub stream id overflow (%d > %d)\n",
id, MAX_S_STREAMS);
return NULL;
}
if (demuxer->s_streams[id])
mp_msg(MSGT_DEMUXER, MSGL_WARN, "Sub stream %i redefined\n", id);
else {
sh_sub_t *sh = calloc(1, sizeof(sh_sub_t));
demuxer->s_streams[id] = sh;
sh->sid = sid;
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sid);
if (dvdsub_id == id) {
demuxer->sub->id = id;
demuxer->sub->sh = sh;
}
}
return demuxer->s_streams[id];
}
void free_sh_sub(sh_sub_t *sh) {
mp_msg(MSGT_DEMUXER, MSGL_DBG2, "DEMUXER: freeing sh_sub at %p\n", sh);
free(sh);
}
sh_audio_t* new_sh_audio_aid(demuxer_t *demuxer,int id,int aid){
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]=calloc(1, 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*/
sh->pts=MP_NOPTS_VALUE;
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", aid);
}
((sh_audio_t *)demuxer->a_streams[id])->aid = aid;
return demuxer->a_streams[id];
}
void free_sh_audio(demuxer_t *demuxer, int id) {
sh_audio_t *sh = demuxer->a_streams[id];
demuxer->a_streams[id] = NULL;
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_vid(demuxer_t *demuxer,int id,int vid){
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]=calloc(1, sizeof(sh_video_t));
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_ID=%d\n", vid);
}
((sh_video_t *)demuxer->v_streams[id])->vid = vid;
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)
goto skip_streamfree;
// free streams:
for(i = 0; i < MAX_A_STREAMS; i++)
if(demuxer->a_streams[i]) free_sh_audio(demuxer, i);
for(i = 0; i < MAX_V_STREAMS; i++)
if(demuxer->v_streams[i]) free_sh_video(demuxer->v_streams[i]);
for(i = 0; i < MAX_S_STREAMS; i++)
if(demuxer->s_streams[i]) free_sh_sub(demuxer->s_streams[i]);
// free demuxers:
free_demuxer_stream(demuxer->audio);
free_demuxer_stream(demuxer->video);
free_demuxer_stream(demuxer->sub);
skip_streamfree:
if(demuxer->info) {
for(i=0;demuxer->info[i] != NULL; i++)
free(demuxer->info[i]);
free(demuxer->info);
}
if(demuxer->filename)
free(demuxer->filename);
if (demuxer->chapters) {
for (i=0; i<demuxer->num_chapters; i++)
if (demuxer->chapters[i].name)
free(demuxer->chapters[i].name);
free(demuxer->chapters);
}
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, double 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( mp_msg_test(MSGT_DEMUXER,MSGL_DBG3) ){
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 != (correct_pts ? MP_NOPTS_VALUE : 0)) {
ds->pts=p->pts;
ds->pts_bytes=0;
}
ds->pts_bytes+=p->len; // !!!
if(p->stream_pts != MP_NOPTS_VALUE) demux->stream_pts=p->stream_pts;
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) fast_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) fast_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;
}
/**
* \brief read data until the given 3-byte pattern is encountered, up to maxlen
* \param mem memory to read data into, may be NULL to discard data
* \param maxlen maximum number of bytes to read
* \param read number of bytes actually read
* \param pattern pattern to search for (lowest 8 bits are ignored)
* \return whether pattern was found
*/
int demux_pattern_3(demux_stream_t *ds, unsigned char *mem, int maxlen,
int *read, uint32_t pattern) {
register uint32_t head = 0xffffff00;
register uint32_t pat = pattern & 0xffffff00;
int total_len = 0;
do {
register unsigned char *ds_buf = &ds->buffer[ds->buffer_size];
int len = ds->buffer_size - ds->buffer_pos;
register long pos = -len;
if (unlikely(pos >= 0)) { // buffer is empty
ds_fill_buffer(ds);
continue;
}
do {
head |= ds_buf[pos];
head <<= 8;
} while (++pos && head != pat);
len += pos;
if (total_len + len > maxlen)
len = maxlen - total_len;
len = demux_read_data(ds, mem ? &mem[total_len] : NULL, len);
total_len += len;
} while ((head != pat || total_len < 3) && total_len < maxlen && !ds->eof);
if (read)
*read = total_len;
return total_len >= 3 && head == pat;
}
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_pts(demux_stream_t *ds,unsigned char **start, double *pts)
{
int len;
*pts = MP_NOPTS_VALUE;
if(ds->buffer_pos>=ds->buffer_size){
if (!ds_fill_buffer(ds)) {
// EOF
*start = NULL;
return -1;
}
}
// Should use MP_NOPTS_VALUE for "unknown pts" in the packets too
// Return pts unless this read starts from the middle of a packet
if (!ds->buffer_pos && (correct_pts || ds->current->pts))
*pts = ds->current->pts;
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;
}
}
double 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 MP_NOPTS_VALUE;
}
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 MP_NOPTS_VALUE;
}
if(!demux_fill_buffer(demux,ds))
return MP_NOPTS_VALUE;
}
return ds->first->pts;
}
// ====================================================================
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");
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DEMUXERS\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
* @param force will be set if demuxer should be forced.
* May be NULL.
* @return DEMUXER_TYPE_xxx, -1 if error or not found
*/
int get_demuxer_type_from_name(char *demuxer_name, int *force)
{
int i;
long type_int;
char *endptr;
if (!demuxer_name || !demuxer_name[0])
return DEMUXER_TYPE_UNKNOWN;
if (force) *force = demuxer_name[0] == '+';
if (demuxer_name[0] == '+')
demuxer_name = &demuxer_name[1];
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)
int correct_pts=0;
/*
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 force, 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 = 0;
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)
fformat = demuxer_desc->check_file(demuxer);
if (force || !demuxer_desc->check_file)
fformat = demuxer_desc->type;
if (fformat != 0) {
if (fformat == demuxer_desc->type) {
demuxer_t *demux2 = demuxer;
// 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;
if (!demuxer->desc->open || (demux2 = demuxer->desc->open(demuxer))) {
demuxer = demux2;
goto dmx_open;
}
} else {
// Format changed after check, recurse
free_demuxer(demuxer);
return demux_open_stream(stream, fformat, force,
audio_id, video_id, dvdsub_id, filename);
}
}
// Check failed for forced demuxer, quit
free_demuxer(demuxer);
return NULL;
}
}
// 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) {
demuxer_t *demux2 = demuxer;
mp_msg(MSGT_DEMUXER, MSGL_INFO, MSGTR_Detected_XXX_FileFormat, demuxer_desc->shortdesc);
file_format = fformat;
if (!demuxer->desc->open || (demux2 = demuxer->desc->open(demuxer))) {
demuxer = demux2;
goto dmx_open;
}
} else {
if (fformat == DEMUXER_TYPE_PLAYLIST)
return demuxer; // handled in mplayer.c
// Format changed after check, recurse
free_demuxer(demuxer);
demuxer=demux_open_stream(stream, fformat, force,
audio_id, video_id, dvdsub_id, filename);
if(demuxer) return demuxer; // done!
file_format = DEMUXER_TYPE_UNKNOWN;
}
}
free_demuxer(demuxer);
demuxer = NULL;
}
}
// 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, force,
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) {
demuxer_t *demux2 = demuxer;
mp_msg(MSGT_DEMUXER, MSGL_INFO, MSGTR_Detected_XXX_FileFormat, demuxer_desc->shortdesc);
file_format = fformat;
if (!demuxer->desc->open || (demux2 = demuxer->desc->open(demuxer))) {
demuxer = demux2;
goto dmx_open;
}
} else {
if (fformat == DEMUXER_TYPE_PLAYLIST)
return demuxer; // handled in mplayer.c
// Format changed after check, recurse
free_demuxer(demuxer);
demuxer=demux_open_stream(stream, fformat, force,
audio_id, video_id, dvdsub_id, filename);
if(demuxer) return demuxer; // done!
file_format = DEMUXER_TYPE_UNKNOWN;
}
}
free_demuxer(demuxer);
demuxer = NULL;
}
}
return NULL;
//====== File format recognized, set up these for compatibility: =========
dmx_open:
demuxer->file_format=file_format;
if ((sh_video=demuxer->video->sh) && sh_video->bih){
int biComp=le2me_32(sh_video->bih->biCompression);
mp_msg(MSGT_DEMUX,MSGL_INFO,"VIDEO: [%.4s] %dx%d %dbpp %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
(char *)&biComp,
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;
int demuxer_force = 0, audio_demuxer_force = 0,
sub_demuxer_force = 0;
if ((demuxer_type = get_demuxer_type_from_name(demuxer_name, &demuxer_force)) < 0) {
mp_msg(MSGT_DEMUXER,MSGL_ERR,"-demuxer %s does not exist.\n",demuxer_name);
}
if ((audio_demuxer_type = get_demuxer_type_from_name(audio_demuxer_name, &audio_demuxer_force)) < 0) {
mp_msg(MSGT_DEMUXER,MSGL_ERR,"-audio-demuxer %s does not exist.\n",audio_demuxer_name);
}
if ((sub_demuxer_type = get_demuxer_type_from_name(sub_demuxer_name, &sub_demuxer_force)) < 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,
demuxer_force, 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_demuxer_force, 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,
sub_demuxer_force, -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,float audio_delay,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;
double tmp = 0;
double pts;
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);
ds_free_packs(demuxer->sub);
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_video) sh_video->timer=0; // !!!!!!
#endif
if(flags & 1) // absolute seek
pts = 0.0f;
else {
if(demuxer->stream_pts == MP_NOPTS_VALUE)
goto dmx_seek;
pts = demuxer->stream_pts;
}
if(flags & 2) { // percent seek
if(stream_control(demuxer->stream, STREAM_CTRL_GET_TIME_LENGTH, &tmp) == STREAM_UNSUPPORTED)
goto dmx_seek;
pts += tmp * rel_seek_secs;
} else
pts += rel_seek_secs;
if(stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_TIME, &pts) != STREAM_UNSUPPORTED) {
demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
return 1;
}
dmx_seek:
if (demuxer->desc->seek)
demuxer->desc->seek(demuxer,rel_seek_secs,audio_delay,flags);
if (sh_audio) resync_audio_stream(sh_audio);
return 1;
}
int demux_info_add(demuxer_t *demuxer, const char *opt, const 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_INFO,MSGTR_DemuxerInfoChanged,opt,param);
free(info[2*n+1]);
info[2*n+1] = strdup(param);
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]);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_NAME%d=%s\n", n, info[2*n]);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_VALUE%d=%s\n", n, info[2*n+1]);
}
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CLIP_INFO_N=%d\n", n);
return 0;
}
char* demux_info_get(demuxer_t *demuxer, const 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;
}
double demuxer_get_time_length(demuxer_t *demuxer){
double get_time_ans;
sh_video_t *sh_video = demuxer->video->sh;
sh_audio_t *sh_audio = demuxer->audio->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 && sh_audio && sh_audio->i_bps)
get_time_ans = (double)(demuxer->movi_end-demuxer->movi_start)/(sh_video->i_bps+sh_audio->i_bps);
else if (sh_video && sh_video->i_bps)
get_time_ans = (double)(demuxer->movi_end-demuxer->movi_start)/sh_video->i_bps;
else if (sh_audio && sh_audio->i_bps)
get_time_ans = (double)(demuxer->movi_end-demuxer->movi_start)/sh_audio->i_bps;
else
get_time_ans=0;
}
return get_time_ans;
}
/**
* \brief demuxer_get_current_time() returns the time of the current play in three possible ways:
* either when the stream reader satisfies STREAM_CTRL_GET_CURRENT_TIME (e.g. dvd)
* or using sh_video->pts when the former method fails
* 0 otherwise
* \return the current play time
*/
int demuxer_get_current_time(demuxer_t *demuxer){
double get_time_ans = 0;
sh_video_t *sh_video = demuxer->video->sh;
if(demuxer->stream_pts != MP_NOPTS_VALUE)
get_time_ans = demuxer->stream_pts;
else if(sh_video) get_time_ans = sh_video->pts;
return (int) 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;
}
int demuxer_switch_video(demuxer_t *demuxer, int index){
int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_VIDEO, &index);
if (res == DEMUXER_CTRL_NOTIMPL)
index = demuxer->video->id;
return index;
}
int demuxer_add_chapter(demuxer_t* demuxer, const char* name, uint64_t start, uint64_t end){
if (demuxer->chapters == NULL)
demuxer->chapters = malloc (32*sizeof(*demuxer->chapters));
else if (!(demuxer->num_chapters % 32))
demuxer->chapters = realloc (demuxer->chapters, (demuxer->num_chapters + 32) * sizeof(*demuxer->chapters));
demuxer->chapters[demuxer->num_chapters].start = start;
demuxer->chapters[demuxer->num_chapters].end = end;
demuxer->chapters[demuxer->num_chapters].name = strdup(name);
return demuxer->num_chapters ++;
}
/**
* \brief demuxer_seek_chapter() seeks to a chapter in two possible ways:
* either using the demuxer->chapters structure set by the demuxer
* or asking help to the stream layer (e.g. dvd)
* \param chapter - chapter number wished - 0-based
* \param mode 0: relative to current main pts, 1: absolute
* \param seek_pts set by the function to the pts to seek to (if demuxer->chapters is set)
* \param num_chapters number of chapters present (set by this function is param is not null)
* \param chapter_name name of chapter found (set by this function is param is not null)
* \return -1 on error, current chapter if successful
*/
int demuxer_seek_chapter(demuxer_t *demuxer, int chapter, int mode, float *seek_pts, int *num_chapters, char **chapter_name) {
int ris;
int current, total;
sh_video_t *sh_video = demuxer->video->sh;
sh_audio_t *sh_audio = demuxer->audio->sh;
if (!demuxer->num_chapters || !demuxer->chapters) {
if(!mode) {
ris = stream_control(demuxer->stream, STREAM_CTRL_GET_CURRENT_CHAPTER, &current);
if(ris == STREAM_UNSUPPORTED) return -1;
chapter += current;
}
if(demuxer->video->sh)
ds_free_packs(demuxer->video);
if(demuxer->audio->sh)
ds_free_packs(demuxer->audio);
if(demuxer->sub->id >= 0)
ds_free_packs(demuxer->sub);
ris = stream_control(demuxer->stream, STREAM_CTRL_SEEK_TO_CHAPTER, &chapter);
if(ris != STREAM_UNSUPPORTED)
demux_control(demuxer, DEMUXER_CTRL_RESYNC, NULL);
if(sh_video) {
ds_fill_buffer(demuxer->video);
resync_video_stream(sh_video);
}
if(sh_audio) {
ds_fill_buffer(demuxer->audio);
resync_audio_stream(sh_audio);
}
//exit status may be ok, but main() doesn't have to seek itself (because e.g. dvds depend on sectors, not on pts)
*seek_pts = -1.0;
if(num_chapters) {
if(stream_control(demuxer->stream, STREAM_CTRL_GET_NUM_CHAPTERS, num_chapters) == STREAM_UNSUPPORTED)
*num_chapters = 0;
}
if(chapter_name) {
char *tmp = malloc(16);
*chapter_name = NULL;
if(num_chapters && *num_chapters && tmp) {
sprintf(tmp, " of %3d", *num_chapters);
*chapter_name = tmp;
}
}
return (ris != STREAM_UNSUPPORTED ? chapter : -1);
} else { //chapters structure is set in the demuxer
total = demuxer->num_chapters;
if (mode==1) { //absolute seeking
current = chapter;
} else { //relative seeking
uint64_t now;
now = (sh_video ? sh_video->pts : (sh_audio ? sh_audio->pts : 0.)) * 1000 + .5;
for (current = total - 1; current >= 0; --current) {
demux_chapter_t* chapter = demuxer->chapters + current;
if (chapter->start <= now)
break;
}
current += chapter;
}
if (current >= total)
return -1;
if (current < 0) current = 0;
*seek_pts = demuxer->chapters[current].start / 1000.0;
if(num_chapters)
*num_chapters = demuxer->num_chapters;
if(chapter_name) {
if(demuxer->chapters[current].name)
*chapter_name = strdup(demuxer->chapters[current].name);
else *chapter_name = NULL;
}
return current;
}
}
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