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https://github.com/mpv-player/mpv
synced 2024-12-25 08:12:17 +00:00
moved mpeg-ps/es probing code to demux_mpg.c
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15671 b3059339-0415-0410-9bf9-f77b7e298cf2
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nicodvb
parent
8f224ba1bc
commit
2b1fef3a98
@ -387,20 +387,100 @@ static int demux_mpg_read_packet(demuxer_t *demux,int id){
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return 0;
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}
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int num_elementary_packets100=0;
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int num_elementary_packets101=0;
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int num_elementary_packets12x=0;
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int num_elementary_packets1B6=0;
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int num_elementary_packetsPES=0;
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int num_h264_slice=0; //combined slice
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int num_h264_dpa=0; //DPA Slice
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int num_h264_dpb=0; //DPB Slice
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int num_h264_dpc=0; //DPC Slice
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int num_h264_idr=0; //IDR Slice
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int num_h264_sps=0;
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int num_h264_pps=0;
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static int num_elementary_packets100=0;
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static int num_elementary_packets101=0;
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static int num_elementary_packets12x=0;
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static int num_elementary_packets1B6=0;
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static int num_elementary_packetsPES=0;
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static int num_h264_slice=0; //combined slice
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static int num_h264_dpa=0; //DPA Slice
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static int num_h264_dpb=0; //DPB Slice
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static int num_h264_dpc=0; //DPC Slice
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static int num_h264_idr=0; //IDR Slice
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static int num_h264_sps=0;
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static int num_h264_pps=0;
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int num_mp3audio_packets=0;
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static int num_mp3audio_packets=0;
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int demux_mpg_probe(demuxer_t *demuxer) {
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int pes=1;
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int tmp;
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off_t tmppos;
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int file_format = DEMUXER_TYPE_UNKNOWN;
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tmppos=stream_tell(demuxer->stream);
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tmp=stream_read_dword(demuxer->stream);
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if(tmp==0x1E0 || tmp==0x1C0) {
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tmp=stream_read_word(demuxer->stream);
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if(tmp>1 && tmp<=2048) pes=0; // demuxer->synced=3; // PES...
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}
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stream_seek(demuxer->stream,tmppos);
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num_elementary_packets100=0;
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num_elementary_packets101=0;
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num_elementary_packets1B6=0;
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num_elementary_packets12x=0;
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num_elementary_packetsPES=0;
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num_h264_slice=0; //combined slice
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num_h264_dpa=0; //DPA Slice
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num_h264_dpb=0; //DPB Slice
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num_h264_dpc=0; //DPC Slice
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num_h264_idr=0; //IDR Slice
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num_h264_sps=0;
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num_h264_pps=0;
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num_mp3audio_packets=0;
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if(demux_mpg_open(demuxer))
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file_format=DEMUXER_TYPE_MPEG_PS;
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else {
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mp_msg(MSGT_DEMUX,MSGL_V,"MPEG packet stats: p100: %d p101: %d p1B6: %d p12x: %d sli: %d a: %d b: %d c: %d idr: %d sps: %d pps: %d PES: %d MP3: %d, synced: %d\n",
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num_elementary_packets100,num_elementary_packets101,
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num_elementary_packets1B6,num_elementary_packets12x,
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num_h264_slice, num_h264_dpa,
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num_h264_dpb, num_h264_dpc=0,
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num_h264_idr, num_h264_sps=0,
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num_h264_pps,
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num_elementary_packetsPES,num_mp3audio_packets, demuxer->synced);
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//MPEG packet stats: p100: 458 p101: 458 PES: 0 MP3: 1103 (.m2v)
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if(num_mp3audio_packets>50 && num_mp3audio_packets>2*num_elementary_packets100
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&& abs(num_elementary_packets100-num_elementary_packets101)>2)
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return file_format;
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// some hack to get meaningfull error messages to our unhappy users:
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if(num_elementary_packets100>=2 && num_elementary_packets101>=2 &&
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abs(num_elementary_packets101+8-num_elementary_packets100)<16) {
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if(num_elementary_packetsPES>=4 && num_elementary_packetsPES>=num_elementary_packets100-4) {
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return file_format;
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}
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file_format=DEMUXER_TYPE_MPEG_ES; // <-- hack is here :)
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} else
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#if 1
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// fuzzy mpeg4-es detection. do NOT enable without heavy testing of mpeg formats detection!
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if(num_elementary_packets1B6>3 && num_elementary_packets12x>=1 &&
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num_elementary_packetsPES==0 && num_elementary_packets100<=num_elementary_packets12x &&
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demuxer->synced<2) {
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file_format=DEMUXER_TYPE_MPEG4_ES;
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} else
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#endif
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#if 1
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// fuzzy h264-es detection. do NOT enable without heavy testing of mpeg formats detection!
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if((num_h264_slice>3 || (num_h264_dpa>3 && num_h264_dpb>3 && num_h264_dpc>3)) &&
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/* FIXME num_h264_sps>=1 && */ num_h264_pps>=1 && num_h264_idr>=1 &&
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num_elementary_packets1B6==0 && num_elementary_packetsPES==0 &&
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demuxer->synced<2) {
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file_format=DEMUXER_TYPE_H264_ES;
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} else
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#endif
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{
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if(demuxer->synced==2)
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mp_msg(MSGT_DEMUXER,MSGL_ERR,"MPEG: " MSGTR_MissingVideoStreamBug);
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else
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mp_msg(MSGT_DEMUXER,MSGL_V,MSGTR_NotSystemStream);
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}
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}
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return file_format;
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}
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int demux_mpg_es_fill_buffer(demuxer_t *demux){
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// Elementary video stream
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@ -584,21 +584,6 @@ float ds_get_next_pts(demux_stream_t *ds) {
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// ====================================================================
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// feed-back from demuxers:
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extern int num_elementary_packets100; // for MPEG-ES fileformat detection
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extern int num_elementary_packets101;
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extern int num_elementary_packetsPES;
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extern int num_elementary_packets1B6;
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extern int num_elementary_packets12x;
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extern int num_h264_slice; //combined slice
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extern int num_h264_dpa; //DPA Slice
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extern int num_h264_dpb; //DPB Slice
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extern int num_h264_dpc; //DPC Slice
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extern int num_h264_idr; //IDR Slice
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extern int num_h264_sps;
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extern int num_h264_pps;
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extern int num_mp3audio_packets;
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// commandline options, flags:
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extern int force_ni;
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extern int pts_from_bps;
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@ -617,6 +602,7 @@ int demux_open_fli(demuxer_t* demuxer);
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int demux_open_mf(demuxer_t* demuxer);
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int demux_open_film(demuxer_t* demuxer);
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int demux_open_roq(demuxer_t* demuxer);
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int demux_mpg_probe(demuxer_t *demuxer);
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#ifdef HAVE_LIBDV095
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int demux_open_rawdv(demuxer_t* demuxer);
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extern int rawdv_check_file(demuxer_t *demuxer);
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@ -1000,96 +986,25 @@ if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_LMLM4){
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demuxer = NULL;
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}
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}
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//=============== Try to open as MPEG-PS file: =================
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if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_MPEG_PS){
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int pes=1;
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int tmp;
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off_t tmppos;
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file_format=DEMUXER_TYPE_UNKNOWN;
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while(pes>=0){
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demuxer=new_demuxer(stream,DEMUXER_TYPE_MPEG_PS,audio_id,video_id,dvdsub_id);
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// try to pre-detect PES:
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tmppos=stream_tell(demuxer->stream);
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tmp=stream_read_dword(demuxer->stream);
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if(tmp==0x1E0 || tmp==0x1C0){
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tmp=stream_read_word(demuxer->stream);
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if(tmp>1 && tmp<=2048) pes=0; // demuxer->synced=3; // PES...
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}
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stream_seek(demuxer->stream,tmppos);
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if(!pes) demuxer->synced=3; // hack!
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num_elementary_packets100=0;
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num_elementary_packets101=0;
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num_elementary_packets1B6=0;
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num_elementary_packets12x=0;
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num_elementary_packetsPES=0;
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num_h264_slice=0; //combined slice
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num_h264_dpa=0; //DPA Slice
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num_h264_dpb=0; //DPB Slice
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num_h264_dpc=0; //DPC Slice
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num_h264_idr=0; //IDR Slice
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num_h264_sps=0;
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num_h264_pps=0;
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num_mp3audio_packets=0;
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if(demux_mpg_open(demuxer)){
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if(!pes)
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demuxer=new_demuxer(stream,DEMUXER_TYPE_MPEG_PS,audio_id,video_id,dvdsub_id);
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file_format = demux_mpg_probe(demuxer);
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mp_msg(MSGT_DEMUXER,MSGL_V,"demux_mpg_probe returned file_format %d\n", file_format);
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if(file_format==DEMUXER_TYPE_UNKNOWN) {
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free_demuxer(demuxer);
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demuxer=new_demuxer(stream,DEMUXER_TYPE_MPEG_PS,audio_id,video_id,dvdsub_id);
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demuxer->synced = 3;
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file_format = demux_mpg_probe(demuxer);
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mp_msg(MSGT_DEMUXER,MSGL_V,"demux_mpg_probe returned file_format %d\n", file_format);
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if(file_format==DEMUXER_TYPE_MPEG_PS)
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mp_msg(MSGT_DEMUXER,MSGL_INFO,MSGTR_Detected_XXX_FileFormat,"MPEG-PES");
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else
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} else if(file_format==DEMUXER_TYPE_MPEG_PS)
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mp_msg(MSGT_DEMUXER,MSGL_INFO,MSGTR_Detected_XXX_FileFormat,"MPEG-PS");
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file_format=DEMUXER_TYPE_MPEG_PS;
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} else {
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mp_msg(MSGT_DEMUX,MSGL_V,"MPEG packet stats: p100: %d p101: %d p1B6: %d p12x: %d sli: %d a: %d b: %d c: %d idr: %d sps: %d pps: %d PES: %d MP3: %d \n",
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num_elementary_packets100,num_elementary_packets101,
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num_elementary_packets1B6,num_elementary_packets12x,
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num_h264_slice, num_h264_dpa,
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num_h264_dpb, num_h264_dpc=0,
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num_h264_idr, num_h264_sps=0,
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num_h264_pps,
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num_elementary_packetsPES,num_mp3audio_packets);
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//MPEG packet stats: p100: 458 p101: 458 PES: 0 MP3: 1103 (.m2v)
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if(num_mp3audio_packets>50 && num_mp3audio_packets>2*num_elementary_packets100
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&& abs(num_elementary_packets100-num_elementary_packets101)>2)
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break; // it's .MP3
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// some hack to get meaningfull error messages to our unhappy users:
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if(num_elementary_packets100>=2 && num_elementary_packets101>=2 &&
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abs(num_elementary_packets101+8-num_elementary_packets100)<16){
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if(num_elementary_packetsPES>=4 && num_elementary_packetsPES>=num_elementary_packets100-4){
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--pes;continue; // tricky...
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}
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file_format=DEMUXER_TYPE_MPEG_ES; // <-- hack is here :)
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} else
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#if 1
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// fuzzy mpeg4-es detection. do NOT enable without heavy testing of mpeg formats detection!
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if(num_elementary_packets1B6>3 && num_elementary_packets12x>=1 &&
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num_elementary_packetsPES==0 && num_elementary_packets100<=num_elementary_packets12x &&
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demuxer->synced<2){
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file_format=DEMUXER_TYPE_MPEG4_ES;
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} else
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#endif
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#if 1
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// fuzzy h264-es detection. do NOT enable without heavy testing of mpeg formats detection!
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if((num_h264_slice>3 || (num_h264_dpa>3 && num_h264_dpb>3 && num_h264_dpc>3)) &&
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/* FIXME num_h264_sps>=1 && */ num_h264_pps>=1 && num_h264_idr>=1 &&
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num_elementary_packets1B6==0 && num_elementary_packetsPES==0 &&
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demuxer->synced<2){
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file_format=DEMUXER_TYPE_H264_ES;
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} else
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#endif
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{
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if(demuxer->synced==2)
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mp_msg(MSGT_DEMUXER,MSGL_ERR,"MPEG: " MSGTR_MissingVideoStreamBug);
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else
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mp_msg(MSGT_DEMUXER,MSGL_V,MSGTR_NotSystemStream);
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}
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if (demuxer && file_format != DEMUXER_TYPE_MPEG_PS) {
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free_demuxer(demuxer);
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demuxer = NULL;
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}
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}
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break;
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if(file_format != DEMUXER_TYPE_MPEG_PS) {
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free_demuxer(demuxer);
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demuxer = NULL;
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}
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}
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//=============== Try to open as MPEG-ES file: =================
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