[FFmpeg-trac] #8349(undetermined:reopened): Dolby AC-4 Support

[FFmpeg]

#8349: Dolby AC-4 Support
-------------------------------------+-------------------------------------
             Reporter:  Nomis101     |                    Owner:
                 Type:  enhancement  |                   Status:  reopened
             Priority:  wish         |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Nomis101):

 Replying to [comment:22 richardpl]:
 > This is latest AC4 WIP code:
 https://github.com/richardpl/FFmpeg/tree/ac4

 Playback does also work nicely for me. But if I try to convert the audio
 stream in e.g. AAC, I see different errors with the provided samples.

 Sample from comment 24 gives me:
 [ac4 @ 0x7fef1480a200] substream audio data overread: 1153
 Error while decoding stream #0:0: Invalid data found when processing input
 [ac4 @ 0x7fef1480a200] substream audio data overread: 598
 Error while decoding stream #0:0: Invalid data found when processing input
 [ac4 @ 0x7fef1480a200] substream audio data underread: 8
 [ac4 @ 0x7fef1480a200] substream audio data underread: 10eed= 229x
 [ac4 @ 0x7fef1480a200] sect_cb[0][0] > 11
 Error while decoding stream #0:0: Invalid data found when processing input
 [ac4 @ 0x7fef1480a200] substream audio data underread: 257
 [ac4 @ 0x7fef1480a200] substream audio data underread: 131
 [ac4 @ 0x7fef1480a200] substream audio data overread: 1217
 Error while decoding stream #0:0: Invalid data found when processing input
 [ac4 @ 0x7fef1480a200] substream audio data underread: 104
 [ac4 @ 0x7fef1480a200] substream audio data underread: 119
 [ac4 @ 0x7fef1480a200] sect_cb[0][0] > 11
 Error while decoding stream #0:0: Invalid data found when processing input
 [ac4 @ 0x7fef1480a200] sect_cb[0][3] > 11
 Error while decoding stream #0:0: Invalid data found when processing input
 [ac4 @ 0x7fef1480a200] substream audio data underread: 106
 [ac4 @ 0x7fef1480a200] substream audio data underread: 122
 [ac4 @ 0x7fef1480a200] sect_cb[0][0] > 11
 Error while decoding stream #0:0: Invalid data found when processing input


 Sample from comment 27 gives me:
 [ac4 @ 0x7fe01f008c00] substream audio data overread: 2
 Error while decoding stream #0:1: Invalid data found when processing input
 [mpegts @ 0x7fe020809a00] Packet corrupt (stream = 0, dts = 1229347550).
 [ac4 @ 0x7fe01f008c00] invalid aspx num env: 7 (class 3)
 Error while decoding stream #0:1: Invalid data found when processing input


 Sample (first one) from comment 28 gives me:
 [ac4 @ 0x7ff98980f600] substream audio data overread: 6
 Error while decoding stream #0:2: Invalid data found when processing input

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Ticket URL: <https://trac.ffmpeg.org/ticket/8349#comment:30>
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