Skip to content

F
ffmpeg.wasm-core
Switch branch/tag
  1. 20 Aug, 2015 1 commit
  3. 17 May, 2015 1 commit
  5. 20 Apr, 2015 1 commit
  7. 19 Apr, 2015 1 commit
  9. 13 Apr, 2015 1 commit
  11. 03 Apr, 2015 2 commits
  13. 31 Jan, 2015 1 commit
  15. 13 Jan, 2015 1 commit
  17. 06 Dec, 2014 2 commits
  19. 16 Nov, 2014 1 commit
  21. 25 Oct, 2014 1 commit
  23. 24 Oct, 2014 1 commit
  25. 23 Oct, 2014 1 commit
  27. 13 Sep, 2014 1 commit
  29. 09 Sep, 2014 1 commit
  31. 08 Sep, 2014 1 commit
  33. 07 Aug, 2014 1 commit
  35. 03 Jun, 2014 1 commit
  37. 24 May, 2014 1 commit
  39. 01 May, 2014 2 commits
  41. 24 Mar, 2014 1 commit
  43. 05 Dec, 2013 1 commit
  45. 01 Dec, 2013 1 commit
  47. 20 Oct, 2013 1 commit
  49. 04 Oct, 2013 2 commits
    • Clément Bœsch's avatar
      avformat/vobsub: raise packet even if apparently incomplete. · d4dc6734
      Clément Bœsch authored 
      This restore the latest packet which was dropped from the FATE test in
dbfe6110.
      d4dc6734
    • Clément Bœsch's avatar
      avformat/vobsub: fix several issues. · dbfe6110
      Clément Bœsch authored 
      Here is an extract of fate-samples/sub/vobsub.idx, with an additional
text at the end of each line to better identify each bitmap:

    timestamp: 00:04:55:445, filepos: 00001b000 Ace!
    timestamp: 00:05:00:049, filepos: 00001b800 Wake up, honey!
    timestamp: 00:05:02:018, filepos: 00001c800 I gotta go to work.
    timestamp: 00:05:02:035, filepos: 00001d000 <???>
    timestamp: 00:05:04:203, filepos: 00001d800 Look after Clayton, okay?
    timestamp: 00:05:05:947, filepos: 00001e800 I'll be back tonight.
    timestamp: 00:05:07:957, filepos: 00001f800 Bye! Love you.
    timestamp: 00:05:21:295, filepos: 000020800 Hey, Ace! What's up?
    timestamp: 00:05:23:356, filepos: 000021800 Hey, how's it going?
    timestamp: 00:05:24:640, filepos: 000022800 Remember what today is? The 3rd!
    timestamp: 00:05:27:193, filepos: 000023800 Look over there!
    timestamp: 00:05:28:369, filepos: 000024800 Where are they going?
    timestamp: 00:05:28:361, filepos: 000025000 <???>
    timestamp: 00:05:29:946, filepos: 000025800 Let's go see.
    timestamp: 00:05:31:230, filepos: 000026000 I can't, man. I got Clayton.

Note the two "<???>": they are basically split subtitles (with the
previous one), which the dvdsub decoder is now supposed to reconstruct
with a previous commit. But also note that while the first chunk has
increasing timestamps,

    timestamp: 00:05:02:018, filepos: 00001c800
    timestamp: 00:05:02:035, filepos: 00001d000

...it's not the case of the second one (and this is not an exception in the
original file):

    timestamp: 00:05:28:369, filepos: 000024800
    timestamp: 00:05:28:361, filepos: 000025000

For the dvdsub decoder, they need to be "filepos'ed" ordered, but the
FFDemuxSubtitlesQueue is timestamps ordered, which is the reason of the
introduction of a sub sort method in the context, to allow giving
priority to the position, and then the timestamps. With that change, the
dvdsub decoder get fed with ordered packets.

Now the packet size estimation was also broken: the filepos differences
in the vobsub index defines the full data read between two subtitles
chunks, and it is necessary to take into account what is read by the
mpegps_read_pes_header() function since the length returned by that
function doesn't count the size of the data it reads. This is fixed with
the introduction of total_read, and {old,new}_pos. By doing this change,
we can drop the unreliable len16 heuristic and simplify the whole loop.
Note that mpegps_read_pes_header() often read more than one PES packet
(typically in one call it can read 0x1ba and 0x1be chunk along with the
relevant 0x1bd packet), which triggers the "total_read + pkt_size >
psize" check. This is an expected behaviour, which could be avoided by
having a more chunked version of mpegps_read_pes_header().

The latest change is the extraction of each stream into its own
subtitles queue. If we don't do this, the maximum size for a subtitle
chunk is broken, and the previous changes can not work. Having each
stream in a different queue requires some little adjustments in the
seek code of the demuxer.

This commit is only meaningful as a whole change and can not be easily
split. The FATE test changes because it uses the vobsub demuxer.
      dbfe6110
  51. 08 Sep, 2013 1 commit
  53. 31 Aug, 2013 1 commit
    • Christian Schmidt's avatar
      pcm_dvd: consolidate pieces from pcm.c and mpeg.c · a42e3a67
      Christian Schmidt authored 
      Remove the header decoding for PCM audio from mpeg.c and the
20/24bit parts from pcm.c and merge them into a new decoder in
pcm-dvd.c.

The decoder has added support for samples that span multiple
packets and modified 20/24bit group decoding. Both is needed to
decode samples that have been generated with DVD-Lab Pro 2. The
decoding of 16bit PCM and two channel 24bit is identical to
before. No other samples are known to verify the correctness of
the encoding this software does.
The complete list of tested formats is
48kHz/16bit/2-8 channels
48kHz/24bit/2-5 channels
96kHz/16bit/2-4 channels
96kHz/24bit/2 channels
Signed-off-by: 's avatarLuca Barbato <lu_zero@gentoo.org>
      a42e3a67
  55. 04 May, 2013 1 commit
  57. 10 Apr, 2013 1 commit
  59. 27 Mar, 2013 1 commit
  61. 20 Mar, 2013 1 commit
  63. 17 Mar, 2013 1 commit
  65. 24 Jan, 2013 1 commit
  67. 17 Jan, 2013 1 commit
  69. 02 Jan, 2013 1 commit
  71. 25 Dec, 2012 1 commit