Opened 15 months ago

Closed 3 months ago

Last modified 3 months ago

#5733 closed enhancement (fixed)

Dolby-E decoding

Reported by: smallishzulu Owned by:
Priority: wish Component: avcodec
Version: git-master Keywords: aes3
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Hello,

Does FFmpeg support Dolby-E decoding ?
I have attached 2 files:

a) Dolby-E data with SMPTE-337
b) Dolby-E data

Kind Regards,

Attachments (2)

dolbyE_binary.zip (1.5 MB) - added by smallishzulu 15 months ago.
Dolby-E Data
dolbyE_with_ST337.zip (2.4 MB) - added by smallishzulu 15 months ago.
Dolby-E Data with SMPTE 337

Change History (5)

Changed 15 months ago by smallishzulu

Dolby-E Data

Changed 15 months ago by smallishzulu

Dolby-E Data with SMPTE 337

comment:1 Changed 15 months ago by cehoyos

  • Component changed from undetermined to avcodec
  • Keywords aes3 added; dolby-e removed
  • Priority changed from normal to wish
  • Status changed from new to open
  • Version changed from unspecified to git-master

A more useful sample is in http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket3890/
Using that sample, this maybe isn't just an enhancement request: Audio is incorrectly identified.

comment:2 follow-up: Changed 3 months ago by richardpl

  • Resolution set to fixed
  • Status changed from open to closed

comment:3 in reply to: ↑ 2 Changed 3 months ago by cepesh

Replying to richardpl:

Fixed in 930fe4b1f75d4176a7226fccdcbd6c68b816a1b7.

Thank you very much. Would you please be so kind and clarify whether Dolby E can now be detected by ffmpeg and ffprobe?

On the example TS file from one of the comments in this thread I get this:

[s302m @ 000000000033b9e0] S302 non PCM mode with data type 28 not supported
[mpeg2video @ 00000000006dd740] Invalid frame dimensions 0x0.
[s302m @ 000000000033b9e0] S302 non PCM mode with data type 28 not supported
    Last message repeated 175 times
[mpegts @ 000000000033a6c0] decoding for stream 3 failed
[mpegts @ 000000000033a6c0] PES packet size mismatch
    Last message repeated 2 times
[mpegts @ 000000000033a6c0] Could not find codec parameters for stream 3 (Audio: s302m (BSSD / 0x44535342), stereo, s32 (20 bit), 2304 kb/s): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'C:\Temp\20170807\ffmpeg isnt able to demux video stream.ts':
  Duration: 00:00:19.96, start: 32171.787089, bitrate: 20976 kb/s
  Program 1
    Stream #0:0[0x200]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, bt709, bottom first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:1[0x1010](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 384 kb/s
    Stream #0:2[0x1020](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 384 kb/s
    Stream #0:3[0x1030](eng): Audio: s302m (BSSD / 0x44535342), stereo, s32 (20 bit), 2304 kb/s

And I'm not sure how to work with those .bin files from the other comments. Are we supposed to inform ffprobe/ffmpeg that input codec is Dolby E? Can you please supply an example?

Thanks in advance.

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