Regression in mp3 "missing header"

[FernetMenta]

This defect is similar to ​https://trac.ffmpeg.org/ticket/5047 but this time related to lame encoder. Forcing AVSTREAM_PARSE_FULL cures the issue.

Sample to reproduce the issue is attached.

[Carl Eugen Hoyos]

Is the issue reproducible with ffmpeg or just with kodi? Which commit introduced the regression?
And please confirm that the issue is reproducible with current FFmpeg git head.

[FernetMenta]

Sample to reproduce: ​https://www.dropbox.com/s/dr8uqhyga9vzkbh/3%20Doors%20Down%20-%20Here%20Without%20You.mp4?dl=0

[FernetMenta]

I tried ffmpeg 3.0 and 3.1. The reason for this regression is exactly the same as mentioned in 5047:
​http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=6ec688e1bc76dd93151cbca1c340162ae4b10d77

If need_parsing is set to AVSTREAM_PARSE_FULL like prior to this change, it works again.

[Carl Eugen Hoyos]

Regression since ae215e2b42dd172f6bfd9f2dad44c9d5c11884bf
For future tickets: Please always test current FFmpeg git head and provide a command line that allows to reproduce the issue together with the console output.

$ ffmpeg -i 3\ Doors\ Down\ -\ Here\ Without\ You_cut.mp4 out.wav
ffmpeg version N-80906-gd5edb6c Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl
  libavutil      55. 28.100 / 55. 28.100
  libavcodec     57. 48.101 / 57. 48.101
  libavformat    57. 41.100 / 57. 41.100
  libavdevice    57.  0.102 / 57.  0.102
  libavfilter     6. 47.100 /  6. 47.100
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  1.100 /  2.  1.100
  libpostproc    54.  0.100 / 54.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '3 Doors Down - Here Without You_cut.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 1970-01-01 00:00:00
    title           : 3 Doors Down - Here Without You.mp4
    encoder         : Lavf52.108.0
  Duration: 00:03:55.57, start: 0.000000, bitrate: 86 kb/s
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x270 [SAR 1:1 DAR 16:9], 422 kb/s, 23.97 fps, 23.97 tbr, 23968 tbn, 47.94 tbc (default)
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, s16p, 127 kb/s (default)
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : SoundHandler
[wav @ 0x2f34ec0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
Output #0, wav, to 'out.wav':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    INAM            : 3 Doors Down - Here Without You.mp4
    ISFT            : Lavf57.41.100
    Stream #0:0(und): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s (default)
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : SoundHandler
      encoder         : Lavc57.48.101 pcm_s16le
Stream mapping:
  Stream #0:1 -> #0:0 (mp3 (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[mp3 @ 0x2f088c0] Header missing
Error while decoding stream #0:1: Invalid data found when processing input
[mp3 @ 0x2f088c0] Header missing
Error while decoding stream #0:1: Invalid data found when processing input                     

...

...

[mp3 @ 0x2f088c0] Header missing
Error while decoding stream #0:1: Invalid data found when processing input
[mp3 @ 0x2f088c0] Header missing
Error while decoding stream #0:1: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x2f033a0] stream 1, offset 0x27122f: partial file
3 Doors Down - Here Without You_cut.mp4: Invalid data found when processing input
size=       9kB time=00:00:00.05 bitrate=1429.9kbits/s speed=1.79x
video:0kB audio:9kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.323785%
Conversion failed!

[Michael Niedermayer]

Fixed in 803c058a6f0c835c3094621d03d6e8c02565f28e

[FernetMenta]

thanks!