diff options
Diffstat (limited to 'demux/video.c')
| -rw-r--r-- | demux/video.c | 622 |
1 files changed, 622 insertions, 0 deletions
diff --git a/demux/video.c b/demux/video.c new file mode 100644 index 0000000000..11e512f119 --- /dev/null +++ b/demux/video.c @@ -0,0 +1,622 @@ +/* + * video frame reading + * + * This file is part of MPlayer. + * + * MPlayer is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MPlayer 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include <libavutil/mem.h> + +#include "mp_msg.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/sub_cc.h" + +/* biCompression constant */ +#define BI_RGB 0L + +static mp_mpeg_header_t picture; + +static int telecine=0; +static float telecine_cnt=-2.5; + +typedef enum { + VIDEO_MPEG12, + VIDEO_MPEG4, + VIDEO_H264, + VIDEO_VC1, + VIDEO_OTHER +} video_codec_t; + +static video_codec_t find_video_codec(sh_video_t *sh_video) +{ + demux_stream_t *d_video=sh_video->ds; + int fmt = d_video->demuxer->file_format; + + if( + (fmt == DEMUXER_TYPE_MPEG_ES) || + (fmt == DEMUXER_TYPE_MPEG_GXF) || + (fmt == DEMUXER_TYPE_MPEG_PES) || + ( + (fmt == DEMUXER_TYPE_MPEG_PS || fmt == DEMUXER_TYPE_MPEG_TS) && + ((! sh_video->format) || (sh_video->format==0x10000001) || (sh_video->format==0x10000002)) + ) + ) + return VIDEO_MPEG12; + else if((fmt == DEMUXER_TYPE_MPEG4_ES) || + ((fmt == DEMUXER_TYPE_MPEG_TS) && (sh_video->format==0x10000004)) || + ((fmt == DEMUXER_TYPE_MPEG_PS) && (sh_video->format==0x10000004)) + ) + return VIDEO_MPEG4; + else if((fmt == DEMUXER_TYPE_H264_ES) || + ((fmt == DEMUXER_TYPE_MPEG_TS) && (sh_video->format==0x10000005)) || + ((fmt == DEMUXER_TYPE_MPEG_PS) && (sh_video->format==0x10000005)) + ) + return VIDEO_H264; + else if((fmt == DEMUXER_TYPE_MPEG_PS || fmt == DEMUXER_TYPE_MPEG_TS) && + (sh_video->format==mmioFOURCC('W', 'V', 'C', '1'))) + return VIDEO_VC1; + else if (fmt == DEMUXER_TYPE_ASF && sh_video->bih && sh_video->bih->biCompression == mmioFOURCC('D', 'V', 'R', ' ')) + return VIDEO_MPEG12; + else + return VIDEO_OTHER; +} + +int video_read_properties(sh_video_t *sh_video){ +demux_stream_t *d_video=sh_video->ds; +video_codec_t video_codec = find_video_codec(sh_video); +// 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: + // in case no strf chunk has been seen in avi, we have no bitmap header + if(!sh_video->bih) return 0; + 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... "); + 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 = av_malloc(VIDEOBUFFER_SIZE + MP_INPUT_BUFFER_PADDING_SIZE); + if (videobuffer) memset(videobuffer+VIDEOBUFFER_SIZE, 0, MP_INPUT_BUFFER_PADDING_SIZE); + else { + mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"Cannot allocate shared memory.\n"); + return 0; + } + } + mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for Video Object Layer Start code... "); + 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); + 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])); + sh_video->disp_w = picture.display_picture_width; + sh_video->disp_h = picture.display_picture_height; + 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... "); + 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 = av_malloc(VIDEOBUFFER_SIZE + MP_INPUT_BUFFER_PADDING_SIZE); + if (videobuffer) memset(videobuffer+VIDEOBUFFER_SIZE, 0, MP_INPUT_BUFFER_PADDING_SIZE); + else { + mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"Cannot allocate shared memory.\n"); + 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); + sh_video->disp_w=picture.display_picture_width; + sh_video->disp_h=picture.display_picture_height; + mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for picture parameter set... "); + 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... "); + 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: { + if (d_video->demuxer->file_format == DEMUXER_TYPE_ASF) { // DVR-MS + if(!sh_video->bih) return 0; + sh_video->format=sh_video->bih->biCompression; + } +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... "); + 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_tmsg(MSGT_DECVIDEO,MSGL_ERR,"MPEG: FATAL: EOF while searching for sequence header.\n"); + return 0; + } + } + mp_msg(MSGT_DECVIDEO,MSGL_V,"OK!\n"); + // ========= Read & process sequence header & extension ============ + if(!videobuffer) { + videobuffer = av_malloc(VIDEOBUFFER_SIZE + MP_INPUT_BUFFER_PADDING_SIZE); + if (videobuffer) memset(videobuffer+VIDEOBUFFER_SIZE, 0, MP_INPUT_BUFFER_PADDING_SIZE); + else { + mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"Cannot allocate shared memory.\n"); + return 0; + } + } + + if(!read_video_packet(d_video)){ + mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"FATAL: Cannot read sequence header.\n"); + return 0; + } + if(mp_header_process_sequence_header (&picture, &videobuffer[4])) { + mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"MPEG: bad sequence header\n"); + 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_tmsg(MSGT_DECVIDEO,MSGL_ERR,"FATAL: Cannot read sequence header extension.\n"); + return 0; + } + if(mp_header_process_extension (&picture, &videobuffer[pos+4])) { + mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"MPEG: bad sequence header extension\n"); + return 0; + } + } + + // display info: + sh_video->format=picture.mpeg1?0x10000001:0x10000002; // mpeg video + sh_video->fps=picture.fps * picture.frame_rate_extension_n / picture.frame_rate_extension_d; + if(!sh_video->fps){ + sh_video->frametime=0; + } else { + sh_video->frametime=1.0/sh_video->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 = av_malloc(VIDEOBUFFER_SIZE + MP_INPUT_BUFFER_PADDING_SIZE); + if (videobuffer) memset(videobuffer+VIDEOBUFFER_SIZE, 0, MP_INPUT_BUFFER_PADDING_SIZE); + else { + mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"Cannot allocate shared memory.\n"); + 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 = calloc(1, sizeof(*sh_video->bih) + videobuf_len); + if(sh_video->bih == NULL) { + mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Couldn't alloc %zu bytes for VC-1 extradata!\n", sizeof(*sh_video->bih) + videobuf_len); + return 0; + } + sh_video->bih->biSize= sizeof(*sh_video->bih) + 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; +} + +static void process_userdata(const 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(verbose<2) return; + fprintf(stderr, "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) fputc(buf[i], stderr); + if(buf[i]&0x60) fputc(buf[i]&0x7F, stderr); + fprintf(stderr, "'\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; + float fps; + int picture_coding_type=0; + int in_size=0; + video_codec_t video_codec = find_video_codec(sh_video); + + *start=NULL; + + if(video_codec == VIDEO_MPEG12){ + 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; + } + } + fps = picture.fps * picture.frame_rate_extension_n / picture.frame_rate_extension_d; + + *start=videobuffer; in_size=videobuf_len; + + // get mpeg fps: + if(sh_video->fps!=fps) if(!force_fps && !telecine){ + mp_msg(MSGT_CPLAYER,MSGL_WARN,"Warning! FPS changed %5.3f -> %5.3f (%f) [%d] \n",sh_video->fps,fps,sh_video->fps-fps,picture.frame_rate_code); + sh_video->fps=fps; + sh_video->frametime=1.0/fps; + } + + // 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_tmsg(MSGT_DECVIDEO,MSGL_INFO,"\ndemux_mpg: 30000/1001fps NTSC content detected, switching framerate.\n"); + 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_tmsg(MSGT_DECVIDEO,MSGL_INFO,"\ndemux_mpg: 24000/1001fps progressive NTSC content detected, switching framerate.\n"); + telecine=1; + } + } else if(video_codec == VIDEO_MPEG4){ + 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(video_codec == VIDEO_H264){ + 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(video_codec == VIDEO_VC1) { + 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: + case DEMUXER_TYPE_MNG: + if(d_video->pts>0 && pts1>0 && d_video->pts>pts1) + frame_time=d_video->pts-pts1; + break; + case DEMUXER_TYPE_TV: + 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: + case DEMUXER_TYPE_LAVF_PREFERRED: + 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; + } + + if(video_codec == VIDEO_MPEG12){ + sh_video->pts+=frame_time; + if(picture_coding_type==1) + d_video->keyframe = true; + 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; +} |