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mpv/libmpdemux/video.c

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// read video frame
#include "config.h"
#include <stdio.h>
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "mp_msg.h"
#include "help_mp.h"
#include "stream/stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "parse_es.h"
#include "mpeg_hdr.h"
/* sub_cc (closed captions)*/
#include "sub_cc.h"
#ifdef USE_LIBAVCODEC_SO
#include <ffmpeg/avcodec.h>
#elif defined(USE_LIBAVCODEC)
#include "libavcodec/avcodec.h"
#else
#define FF_INPUT_BUFFER_PADDING_SIZE 8
#endif
/* biCompression constant */
#define BI_RGB 0L
#ifdef STREAMING_LIVE555
#include "demux_rtp.h"
#endif
static mp_mpeg_header_t picture;
static int telecine=0;
static float telecine_cnt=-2.5;
int video_read_properties(sh_video_t *sh_video){
demux_stream_t *d_video=sh_video->ds;
enum {
VIDEO_MPEG12,
VIDEO_MPEG4,
VIDEO_H264,
VIDEO_VC1,
VIDEO_OTHER
} video_codec;
if((d_video->demuxer->file_format == DEMUXER_TYPE_PVA) ||
(d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_ES) ||
(d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_GXF) ||
(d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_PES) ||
(d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_PS && ((! sh_video->format) || (sh_video->format==0x10000001) || (sh_video->format==0x10000002))) ||
(d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_TY) ||
(d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_TS && ((sh_video->format==0x10000001) || (sh_video->format==0x10000002)))
#ifdef STREAMING_LIVE555
|| ((d_video->demuxer->file_format == DEMUXER_TYPE_RTP) && demux_is_mpeg_rtp_stream(d_video->demuxer))
#endif
)
video_codec = VIDEO_MPEG12;
else if((d_video->demuxer->file_format == DEMUXER_TYPE_MPEG4_ES) ||
((d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_TS) && (sh_video->format==0x10000004)) ||
((d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_PS) && (sh_video->format==0x10000004))
)
video_codec = VIDEO_MPEG4;
else if((d_video->demuxer->file_format == DEMUXER_TYPE_H264_ES) ||
((d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_TS) && (sh_video->format==0x10000005)) ||
((d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_PS) && (sh_video->format==0x10000005))
)
video_codec = VIDEO_H264;
else if((d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_PS || d_video->demuxer->file_format == DEMUXER_TYPE_MPEG_TS) && (sh_video->format==mmioFOURCC('W', 'V', 'C', '1')))
video_codec = VIDEO_VC1;
else
video_codec = VIDEO_OTHER;
// Determine image properties:
switch(video_codec){
case VIDEO_OTHER: {
if((d_video->demuxer->file_format == DEMUXER_TYPE_ASF) || (d_video->demuxer->file_format == DEMUXER_TYPE_AVI)) {
// display info:
sh_video->format=sh_video->bih->biCompression;
sh_video->disp_w=sh_video->bih->biWidth;
sh_video->disp_h=abs(sh_video->bih->biHeight);
}
break;
}
case VIDEO_MPEG4: {
int pos = 0, vop_cnt=0, units[3];
videobuf_len=0; videobuf_code_len=0;
mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for Video Object Start code... ");fflush(stdout);
while(1){
int i=sync_video_packet(d_video);
if(i<=0x11F) break; // found it!
if(!i || !skip_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
return 0;
}
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"OK!\n");
if(!videobuffer) {
videobuffer=(char*)memalign(8,VIDEOBUFFER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
if (videobuffer) memset(videobuffer+VIDEOBUFFER_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
else {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_ShMemAllocFail);
return 0;
}
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for Video Object Layer Start code... ");fflush(stdout);
while(1){
int i=sync_video_packet(d_video);
mp_msg(MSGT_DECVIDEO,MSGL_V,"M4V: 0x%X\n",i);
if(i>=0x120 && i<=0x12F) break; // found it!
if(!i || !read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
return 0;
}
}
pos = videobuf_len+4;
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Can't read Video Object Layer Header\n");
return 0;
}
mp4_header_process_vol(&picture, &(videobuffer[pos]));
mp_msg(MSGT_DECVIDEO,MSGL_V,"OK! FPS SEEMS TO BE %.3f\nSearching for Video Object Plane Start code... ", sh_video->fps);fflush(stdout);
mp4_init:
while(1){
int i=sync_video_packet(d_video);
if(i==0x1B6) break; // found it!
if(!i || !read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
return 0;
}
}
pos = videobuf_len+4;
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Can't read Video Object Plane Header\n");
return 0;
}
mp4_header_process_vop(&picture, &(videobuffer[pos]));
units[vop_cnt] = picture.timeinc_unit;
vop_cnt++;
//mp_msg(MSGT_DECVIDEO,MSGL_V, "TYPE: %d, unit: %d\n", picture.picture_type, picture.timeinc_unit);
if(!picture.fps) {
int i, mn, md, mx, diff;
if(vop_cnt < 3)
goto mp4_init;
i=0;
mn = mx = units[0];
for(i=0; i<3; i++) {
if(units[i] < mn)
mn = units[i];
if(units[i] > mx)
mx = units[i];
}
md = mn;
for(i=0; i<3; i++) {
if((units[i] > mn) && (units[i] < mx))
md = units[i];
}
mp_msg(MSGT_DECVIDEO,MSGL_V, "MIN: %d, mid: %d, max: %d\n", mn, md, mx);
if(mx - md > md - mn)
diff = md - mn;
else
diff = mx - md;
if(diff > 0){
picture.fps = ((float)picture.timeinc_resolution) / diff;
mp_msg(MSGT_DECVIDEO,MSGL_V, "FPS seems to be: %f, resolution: %d, delta_units: %d\n", picture.fps, picture.timeinc_resolution, diff);
}
}
if(picture.fps) {
sh_video->fps=picture.fps;
sh_video->frametime=1.0/picture.fps;
mp_msg(MSGT_DECVIDEO,MSGL_INFO, "FPS seems to be: %f\n", picture.fps);
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"OK!\n");
sh_video->format=0x10000004;
break;
}
case VIDEO_H264: {
int pos = 0;
videobuf_len=0; videobuf_code_len=0;
mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for sequence parameter set... ");fflush(stdout);
while(1){
int i=sync_video_packet(d_video);
if((i&~0x60) == 0x107 && i != 0x107) break; // found it!
if(!i || !skip_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
return 0;
}
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"OK!\n");
if(!videobuffer) {
videobuffer=(char*)memalign(8,VIDEOBUFFER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
if (videobuffer) memset(videobuffer+VIDEOBUFFER_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
else {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_ShMemAllocFail);
return 0;
}
}
pos = videobuf_len+4;
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Can't read sequence parameter set\n");
return 0;
}
h264_parse_sps(&picture, &(videobuffer[pos]), videobuf_len - pos);
mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for picture parameter set... ");fflush(stdout);
while(1){
int i=sync_video_packet(d_video);
mp_msg(MSGT_DECVIDEO,MSGL_V,"H264: 0x%X\n",i);
if((i&~0x60) == 0x108 && i != 0x108) break; // found it!
if(!i || !read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
return 0;
}
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"OK!\nSearching for Slice... ");fflush(stdout);
while(1){
int i=sync_video_packet(d_video);
if((i&~0x60) == 0x101 || (i&~0x60) == 0x102 || (i&~0x60) == 0x105) break; // found it!
if(!i || !read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
return 0;
}
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"OK!\n");
sh_video->format=0x10000005;
if(picture.fps) {
sh_video->fps=picture.fps;
sh_video->frametime=1.0/picture.fps;
mp_msg(MSGT_DECVIDEO,MSGL_INFO, "FPS seems to be: %f\n", picture.fps);
}
break;
}
case VIDEO_MPEG12: {
mpeg_header_parser:
// Find sequence_header first:
videobuf_len=0; videobuf_code_len=0;
telecine=0; telecine_cnt=-2.5;
mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for sequence header... ");fflush(stdout);
while(1){
int i=sync_video_packet(d_video);
if(i==0x1B3) break; // found it!
if(!i || !skip_video_packet(d_video)){
if( mp_msg_test(MSGT_DECVIDEO,MSGL_V) ) mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MpegNoSequHdr);
return 0;
}
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"OK!\n");
// ========= Read & process sequence header & extension ============
if(!videobuffer) {
videobuffer=(char*)memalign(8,VIDEOBUFFER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
if (videobuffer) memset(videobuffer+VIDEOBUFFER_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
else {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_ShMemAllocFail);
return 0;
}
}
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_CannotReadMpegSequHdr);
return 0;
}
if(mp_header_process_sequence_header (&picture, &videobuffer[4])) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_BadMpegSequHdr);
goto mpeg_header_parser;
}
if(sync_video_packet(d_video)==0x1B5){ // next packet is seq. ext.
int pos=videobuf_len;
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_CannotReadMpegSequHdrEx);
return 0;
}
if(mp_header_process_extension (&picture, &videobuffer[pos+4])) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_BadMpegSequHdrEx);
return 0;
}
}
// display info:
sh_video->format=picture.mpeg1?0x10000001:0x10000002; // mpeg video
sh_video->fps=picture.fps;
if(!sh_video->fps){
sh_video->frametime=0;
} else {
sh_video->frametime=1.0/picture.fps;
}
sh_video->disp_w=picture.display_picture_width;
sh_video->disp_h=picture.display_picture_height;
// bitrate:
if(picture.bitrate!=0x3FFFF) // unspecified/VBR ?
sh_video->i_bps=picture.bitrate * 400 / 8;
// info:
mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"mpeg bitrate: %d (%X)\n",picture.bitrate,picture.bitrate);
mp_msg(MSGT_DECVIDEO,MSGL_INFO,"VIDEO: %s %dx%d (aspect %d) %5.3f fps %5.1f kbps (%4.1f kbyte/s)\n",
picture.mpeg1?"MPEG1":"MPEG2",
sh_video->disp_w,sh_video->disp_h,
picture.aspect_ratio_information,
sh_video->fps,
sh_video->i_bps * 8 / 1000.0,
sh_video->i_bps / 1000.0 );
break;
}
case VIDEO_VC1: {
// Find sequence_header:
videobuf_len=0;
videobuf_code_len=0;
mp_msg(MSGT_DECVIDEO,MSGL_INFO,"Searching for VC1 sequence header... ");
while(1){
int i=sync_video_packet(d_video);
if(i==0x10F) break; // found it!
if(!i || !skip_video_packet(d_video)){
if( mp_msg_test(MSGT_DECVIDEO,MSGL_V) ) mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
mp_msg(MSGT_DECVIDEO,MSGL_ERR, "Couldn't find VC-1 sequence header\n");
return 0;
}
}
mp_msg(MSGT_DECVIDEO,MSGL_INFO,"found\n");
if(!videobuffer) {
videobuffer=(char*)memalign(8,VIDEOBUFFER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
if (videobuffer) memset(videobuffer+VIDEOBUFFER_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
else {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_ShMemAllocFail);
return 0;
}
}
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR, "Couldn't read VC-1 sequence header!\n");
return 0;
}
while(1) {
int i=sync_video_packet(d_video);
if(i==0x10E) break; // found it!
if(!i || !skip_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"Couldn't find VC-1 entry point sync-code:(\n");
return 0;
}
}
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"Couldn't read VC-1 entry point sync-code:(\n");
return 0;
}
if(mp_vc1_decode_sequence_header(&picture, &videobuffer[4], videobuf_len-4)) {
sh_video->bih = (BITMAPINFOHEADER *) calloc(1, sizeof(BITMAPINFOHEADER) + videobuf_len);
if(sh_video->bih == NULL) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Couldn't alloc %d bytes for VC-1 extradata!\n", sizeof(BITMAPINFOHEADER) + videobuf_len);
return 0;
}
sh_video->bih->biSize= sizeof(BITMAPINFOHEADER) + videobuf_len;
memcpy(sh_video->bih + 1, videobuffer, videobuf_len);
sh_video->bih->biCompression = sh_video->format;
sh_video->bih->biWidth = sh_video->disp_w = picture.display_picture_width;
sh_video->bih->biHeight = sh_video->disp_h = picture.display_picture_height;
if(picture.fps > 0) {
sh_video->frametime=1.0/picture.fps;
sh_video->fps = picture.fps;
}
mp_msg(MSGT_DECVIDEO,MSGL_INFO,"VIDEO: VC-1 %dx%d, %5.3f fps, header len: %d\n",
sh_video->disp_w, sh_video->disp_h, sh_video->fps, videobuf_len);
}
break;
}
} // switch(file_format)
return 1;
}
void ty_processuserdata( unsigned char* buf, int len );
static void process_userdata(unsigned char* buf,int len){
int i;
/* if the user data starts with "CC", assume it is a CC info packet */
if(len>2 && buf[0]=='C' && buf[1]=='C'){
// mp_msg(MSGT_DECVIDEO,MSGL_DBG2,"video.c: process_userdata() detected Closed Captions!\n");
subcc_process_data(buf+2,len-2);
}
if( len > 2 && buf[ 0 ] == 'T' && buf[ 1 ] == 'Y' )
{
ty_processuserdata( buf + 2, len - 2 );
return;
}
if(verbose<2) return;
printf( "user_data: len=%3d %02X %02X %02X %02X '",
len, buf[0], buf[1], buf[2], buf[3]);
for(i=0;i<len;i++)
// if(buf[i]>=32 && buf[i]<127) putchar(buf[i]);
if(buf[i]&0x60) putchar(buf[i]&0x7F);
printf("'\n");
}
int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char** start,int force_fps){
demux_stream_t *d_video=sh_video->ds;
demuxer_t *demuxer=d_video->demuxer;
float frame_time=1;
float pts1=d_video->pts;
float pts=0;
int picture_coding_type=0;
int in_size=0;
*start=NULL;
if(demuxer->file_format==DEMUXER_TYPE_MPEG_ES ||
demuxer->file_format==DEMUXER_TYPE_MPEG_GXF ||
demuxer->file_format==DEMUXER_TYPE_MPEG_PES ||
(demuxer->file_format==DEMUXER_TYPE_MPEG_PS && ((! sh_video->format) || (sh_video->format==0x10000001) || (sh_video->format==0x10000002)))
|| demuxer->file_format==DEMUXER_TYPE_PVA ||
((demuxer->file_format==DEMUXER_TYPE_MPEG_TS) && ((sh_video->format==0x10000001) || (sh_video->format==0x10000002)))
|| demuxer->file_format==DEMUXER_TYPE_MPEG_TY
#ifdef STREAMING_LIVE555
|| (demuxer->file_format==DEMUXER_TYPE_RTP && demux_is_mpeg_rtp_stream(demuxer))
#endif
){
int in_frame=0;
//float newfps;
//videobuf_len=0;
while(videobuf_len<VIDEOBUFFER_SIZE-MAX_VIDEO_PACKET_SIZE){
int i=sync_video_packet(d_video);
//void* buffer=&videobuffer[videobuf_len+4];
int start=videobuf_len+4;
if(in_frame){
if(i<0x101 || i>=0x1B0){ // not slice code -> end of frame
if(!i) return -1; // EOF
break;
}
} else {
if(i==0x100){
pts=d_video->pts;
d_video->pts=0;
}
if(i>=0x101 && i<0x1B0) in_frame=1; // picture startcode
else if(!i) return -1; // EOF
}
if(!read_video_packet(d_video)) return -1; // EOF
// process headers:
switch(i){
case 0x1B3: mp_header_process_sequence_header (&picture, &videobuffer[start]);break;
case 0x1B5: mp_header_process_extension (&picture, &videobuffer[start]);break;
case 0x1B2: process_userdata (&videobuffer[start], videobuf_len-start);break;
case 0x100: picture_coding_type=(videobuffer[start+1] >> 3) & 7;break;
}
}
*start=videobuffer; in_size=videobuf_len;
#if 1
// get mpeg fps:
if(sh_video->fps!=picture.fps) if(!force_fps && !telecine){
mp_msg(MSGT_CPLAYER,MSGL_WARN,"Warning! FPS changed %5.3f -> %5.3f (%f) [%d] \n",sh_video->fps,picture.fps,sh_video->fps-picture.fps,picture.frame_rate_code);
sh_video->fps=picture.fps;
sh_video->frametime=1.0/picture.fps;
}
#endif
// fix mpeg2 frametime:
frame_time=(picture.display_time)*0.01f;
picture.display_time=100;
videobuf_len=0;
telecine_cnt*=0.9; // drift out error
telecine_cnt+=frame_time-5.0/4.0;
mp_msg(MSGT_DECVIDEO,MSGL_DBG2,"\r telecine = %3.1f %5.3f \n",frame_time,telecine_cnt);
if(telecine){
frame_time=1;
if(telecine_cnt<-1.5 || telecine_cnt>1.5){
mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_LeaveTelecineMode);
telecine=0;
}
} else
if(telecine_cnt>-0.5 && telecine_cnt<0.5 && !force_fps){
sh_video->fps=sh_video->fps*4/5;
sh_video->frametime=sh_video->frametime*5/4;
mp_msg(MSGT_DECVIDEO,MSGL_INFO,MSGTR_EnterTelecineMode);
telecine=1;
}
} else if((demuxer->file_format==DEMUXER_TYPE_MPEG4_ES) || ((demuxer->file_format==DEMUXER_TYPE_MPEG_TS) && (sh_video->format==0x10000004)) ||
((demuxer->file_format==DEMUXER_TYPE_MPEG_PS) && (sh_video->format==0x10000004))
){
while(videobuf_len<VIDEOBUFFER_SIZE-MAX_VIDEO_PACKET_SIZE){
int i=sync_video_packet(d_video);
if(!i) return -1;
if(!read_video_packet(d_video)) return -1; // EOF
if(i==0x1B6) break;
}
*start=videobuffer; in_size=videobuf_len;
videobuf_len=0;
} else if(demuxer->file_format==DEMUXER_TYPE_H264_ES || ((demuxer->file_format==DEMUXER_TYPE_MPEG_TS) && (sh_video->format==0x10000005)) ||
((demuxer->file_format==DEMUXER_TYPE_MPEG_PS) && (sh_video->format==0x10000005))
){
int in_picture = 0;
while(videobuf_len<VIDEOBUFFER_SIZE-MAX_VIDEO_PACKET_SIZE){
int i=sync_video_packet(d_video);
int pos = videobuf_len+4;
if(!i) return -1;
if(!read_video_packet(d_video)) return -1; // EOF
if((i&~0x60) == 0x107 && i != 0x107) {
h264_parse_sps(&picture, &(videobuffer[pos]), videobuf_len - pos);
if(picture.fps > 0) {
sh_video->fps=picture.fps;
sh_video->frametime=1.0/picture.fps;
}
i=sync_video_packet(d_video);
if(!i) return -1;
if(!read_video_packet(d_video)) return -1; // EOF
}
// here starts the access unit end detection code
// see the mail on MPlayer-dev-eng for details:
// Date: Sat, 17 Sep 2005 11:24:06 +0200
// Subject: Re: [MPlayer-dev-eng] [RFC] h264 ES parser problems
// Message-ID: <20050917092406.GA7699@rz.uni-karlsruhe.de>
if((i&~0x60) == 0x101 || (i&~0x60) == 0x102 || (i&~0x60) == 0x105)
// found VCL NAL with slice header i.e. start of current primary coded
// picture, so start scanning for the end now
in_picture = 1;
if (in_picture) {
i = sync_video_packet(d_video) & ~0x60; // code of next packet
if(i == 0x106 || i == 0x109) break; // SEI or access unit delim.
if(i == 0x101 || i == 0x102 || i == 0x105) {
// assuming arbitrary slice ordering is not allowed, the
// first_mb_in_slice (golomb encoded) value should be 0 then
// for the first VCL NAL in a picture
if (demux_peekc(d_video) & 0x80)
break;
}
}
}
*start=videobuffer; in_size=videobuf_len;
videobuf_len=0;
} else if((demuxer->file_format==DEMUXER_TYPE_MPEG_PS || demuxer->file_format==DEMUXER_TYPE_MPEG_TS) && (sh_video->format==mmioFOURCC('W', 'V', 'C', '1'))) {
while(videobuf_len<VIDEOBUFFER_SIZE-MAX_VIDEO_PACKET_SIZE) {
int i=sync_video_packet(d_video);
if(!i) return -1;
if(!read_video_packet(d_video)) return -1; // EOF
if(i==0x10D) break;
}
*start=videobuffer;
in_size=videobuf_len;
videobuf_len=0;
} else {
// frame-based file formats: (AVI,ASF,MOV)
in_size=ds_get_packet(d_video,start);
if(in_size<0) return -1; // EOF
}
//------------------------ frame decoded. --------------------
// Increase video timers:
sh_video->num_frames+=frame_time;
++sh_video->num_frames_decoded;
frame_time*=sh_video->frametime;
// override frame_time for variable/unknown FPS formats:
if(!force_fps) switch(demuxer->file_format){
case DEMUXER_TYPE_GIF:
case DEMUXER_TYPE_MATROSKA:
if(d_video->pts>0 && pts1>0 && d_video->pts>pts1)
frame_time=d_video->pts-pts1;
break;
#ifdef USE_TV
case DEMUXER_TYPE_TV:
#endif
case DEMUXER_TYPE_MOV:
case DEMUXER_TYPE_FILM:
case DEMUXER_TYPE_VIVO:
case DEMUXER_TYPE_OGG:
case DEMUXER_TYPE_ASF: {
double next_pts = ds_get_next_pts(d_video);
double d= (next_pts != MP_NOPTS_VALUE) ? next_pts - d_video->pts : d_video->pts-pts1;
if(d>=0){
if(d>0){
if((int)sh_video->fps==1000)
mp_msg(MSGT_CPLAYER,MSGL_V,"\navg. framerate: %d fps \n",(int)(1.0f/d));
sh_video->frametime=d; // 1ms
sh_video->fps=1.0f/d;
}
frame_time = d;
} else {
mp_msg(MSGT_CPLAYER,MSGL_WARN,"\nInvalid frame duration value (%5.3f/%5.3f => %5.3f). Defaulting to %5.3f sec.\n",d_video->pts,next_pts,d,frame_time);
// frame_time = 1/25.0;
}
}
break;
case DEMUXER_TYPE_LAVF:
if((int)sh_video->fps==1000 || (int)sh_video->fps<=1){
double next_pts = ds_get_next_pts(d_video);
double d= (next_pts != MP_NOPTS_VALUE) ? next_pts - d_video->pts : d_video->pts-pts1;
if(d>=0){
frame_time = d;
}
}
break;
case DEMUXER_TYPE_REAL:
{
double next_pts = ds_get_next_pts(d_video);
double d = (next_pts != MP_NOPTS_VALUE) ? next_pts - d_video->pts : d_video->pts - pts1;
frame_time = (d >= 0 && pts1 > 0) ? d : 0.001;
}
break;
}
if(demuxer->file_format==DEMUXER_TYPE_MPEG_PS ||
demuxer->file_format==DEMUXER_TYPE_MPEG_PES ||
((demuxer->file_format==DEMUXER_TYPE_MPEG_TS) && ((sh_video->format==0x10000001) || (sh_video->format==0x10000002))) ||
demuxer->file_format==DEMUXER_TYPE_MPEG_ES ||
demuxer->file_format==DEMUXER_TYPE_MPEG_TY){
sh_video->pts+=frame_time;
if(picture_coding_type<=2 && sh_video->i_pts){
sh_video->pts=sh_video->i_pts;
sh_video->i_pts=pts;
} else {
if(pts){
if(picture_coding_type<=2) sh_video->i_pts=pts;
else {
sh_video->pts=pts;
}
}
}
} else
sh_video->pts=d_video->pts;
if(frame_time_ptr) *frame_time_ptr=frame_time;
return in_size;
}
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