H.264 encoder header problem

[nandkishorbirad]

Hi all,

     I am working on i.MX53 platform on linux 2.6.35. It captures the camera feed and encodes to H.264 file format. I used mxc_vpu_test as a reference project. The problem is it doesn't play in VLC player or other than the movie player of ubuntu.

     When I checked the video created by mxc_vpu_test.out, It is also having same problem. I think, this some encoder header issue.

Has anybody faced same issue & how to fix it?

the command for mxc_vpu_test is,

./mxc_vpu_test -E "-o Out.mp4 -f 2 -c 300 -w 640 -h 480"

Regards,

Nandkishor.

[YixingKong]

Nandkishor

This discussion is closed since no activity. If you still need help, please feel free to reply with an update to this discussion, or create another discussion.

Thanks,

Yixing

[YixingKong]

Nandkishor

Had your issue got resolved? If yes, we are going to close the discussion in 3 days. If you still need help, please feel free to reply with an update to this discussion.

Thanks,

Yixing

[joanxie]

as I mentioned in the SR, I send the link to you, try to change the raw data to mp4 file first, hope that helpful for you.

[BrilliantovKiri]

Use ffplay, Luke! :smileywink:

[nandkishorbirad]

Hi Kirill,

    The encoded video file should play in common video players. This is the primary requirement, I can't suggest user to use some specific player.

[BrilliantovKiri]

For this you should add video frames in container, e.g. avi.

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[prasannakumar_m]

Guess the header is not stored. Using vpu_EncGiveCommand(handle, ENC_PUT_AVC_HEADER, &hdr_sps) api with appropriate parameters will provide the headers. Write the header to the file before writing the encoded data.Sample code may be fetching the header already - try to use it.

[nandkishorbirad]

Hi Prasanna,

     vpu_EncGiveCommand is already used as below,

enchdr_param.headerType = SPS_RBSP;

vpu_EncGiveCommand(handle, ENC_PUT_AVC_HEADER, &enchdr_param);

vbuf = (virt_bsbuf + enchdr_param.buf - phy_bsbuf);

ret = vpu_write(enc->cmdl, (void *)vbuf, enchdr_param.size);

enchdr_param.headerType = PPS_RBSP;

vpu_EncGiveCommand(handle, ENC_PUT_AVC_HEADER, &enchdr_param);

vbuf = (virt_bsbuf + enchdr_param.buf - phy_bsbuf);

ret = vpu_write(enc->cmdl, (void *)vbuf, enchdr_param.size);

I have attached the screen-shot of video file in hex editor. (mxc_vpu_test.png) and the video file created using G-streamer (g-streamer.png),

Regards,

Nandkishor.

[prasannakumar_m]

Looks like the header is present in the vpu encoded file. There must be some other problem. Please try playing in mplayer or ffplay.

[nandkishorbirad]

Hi Prasanna,

As I mentioned earlier the video plays in movie player in ubuntu 12.04. But not in other players like VLC player.

The video file recorded using g-streamer plays in all video player.

Did you see the attached screen shot of both video files in hex editor. g-streamer video file has more informations.

Can you point out what information is missing in other video file (mxc_vpu_test.png) & how can I generate it?

Regards,

Nandkishor.