Play H264 MPEG-PES stream

Could you provide a short bit-stream?

Hi,

sure i have attached a pes stream captured with mplayer "dumpstream".

Regards

Andy

by checking , there're errors in the header of the stream.

.

Could you give the stream from your platform directly?

or are you sure this stream is totally the same as the one from your platform.

Andreas Werner said:

Is there another way to Play the mpeg-pes stream? Or is there something which i do not understand exactly regarding playing a mpeg-pes stream.

I hope there is someboady out who can help me.

Please download ffmpeg tool(ffplay) and execute "ffplay.exe bitstream"

and you'll see all messages in your problem bit-stream.

Sorry got the wrong file.

Attached you will find the new one.

I can Play it with avplay (ffplay) and with mplayer (-demuxer h264es) but not with -demuxer mpegpes.

I have checked the Header with h264analyze.

Regards

Andy

You also have to specify "-fps 60" in mplayer because i am not sending VUI info.

hi,

Andreas Werner said:

I have checked the Header with h264analyze.

did you mean the header in your bit-stream is verified without any error?

by checking you BS, we still find

and one more thing, I checked video frame by frame and found following, you may try to play without error concealment. 

Hi,

thanks. I will also check this Kind of error. Maybe the stream send is to short, and there are still Errors at the beginning.

I have checked the Header with h264_analyze to verify if all fields are filled out correctly and if the bitstream length is eqal to the length given in the Header.

I still do not understand why the stream is playing "almost" good with avplay and mplayer (with -demuxer h264es) but not with "-demxuer mpegpes".

Do you have any idea about that issue?

Regards

Andy

By parsing pes header in your BS,

By checking description of the standard of ITU-T Rec. H.262   

MPEG-1 refers to ISO/IEC 11172-2 whilst MPEG-2 refers to ISO/IEC 13818-2.

And you video is H264 (Mpeg4-part10) instead of  MPEG1/MPEG2. That means there's conflict between your header (MPEG1/2) and contents (H264).

And that might be the root cause about why "-demuxer mpegpes"  will show following 

It's because the video header of MPEG1/MPEG2 can't be found.

Hi,

thanks for the nice Explanation.

But as I know, it is possible to carry an MPEG4/H264 Stream within a PES.

The Problem sounds like that mplayer expects MPEG1/2 within PES and cannot find anything else like h264. Or do you mean that the stream ID (0xE0 = MPEG1, -2, -4 Part 2, MPEG-4 Part 10) is the Problem?

Regards

Andy

But as I know, it is possible to carry an MPEG4/H264 Stream within a PES.

> Sure . As I checked the standard of H.222, it was described as below

As your speaking, it looks like something done in mplayer. 

By checking the source code about flag "-demuxer mpegpes" inside mplayer, 

As below, we know it just check if your BS is real mpeg video defined in ISO/IEC 13818-2 Video or ISO/IEC 11172-2.

Others such as MPEG4/H264 were classified as unknown type.

static int demux_mpg_pes_probe(demuxer_t *demuxer) {
demuxer->synced = 3;
return (demux_mpg_probe(demuxer) == DEMUXER_TYPE_MPEG_PS) ? DEMUXER_TYPE_MPEG_PES : DEMUXER_TYPE_UNKNOWN;
}

static int demux_mpg_probe(demuxer_t *demuxer) {
...
file_format=DEMUXER_TYPE_MPEG_ES;
...
file_format=DEMUXER_TYPE_MPEG4_ES;
...
file_format=DEMUXER_TYPE_H264_ES;
...
return file_format;
}