ffmpeg cannot recognize an wave file PCM detected as mp1

[lesterkong]

Summary of the bug:when i use ffmpeg convert an wave file,the ffmpeg cannot recognize my file and probe result is mp1
How to reproduce:

% ./ffmpeg -i wav_format_recongnize_error.wav out.wav
ffmpeg version is 3.2.4
built with gcc 4.1.2 (GCC) 20070115 (prerelease) (SUSE Linux)

The full report is below:

ffmpeg started on 2017-02-22 at 22:00:00
Report written to "ffmpeg-20170222-220000.log"
Command line:
./ffmpeg -report -v 9 -loglevel 99 -i wav_format_recongnize_error.wav out.wav
ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 4.1.2 (GCC) 20070115 (prerelease) (SUSE Linux)
  configuration: --prefix=/data/AutoBuild/src/isd_musicadmin_proj/trunk/biz_pack/lesterkong/ffmpeg_3.2.4_video --disable-yasm --enable-static --disable-shared --enable-libx264 --enable-gpl --extra-cflags=-I/data/AutoBuild/src/isd_musicadmin_proj/trunk/biz_pack/lesterkong/x264_static/include --extra-ldflags=-L/data/AutoBuild/src/isd_musicadmin_proj/trunk/biz_pack/lesterkong/x264_static/lib --extra-libs='-lx264 -ldl' --enable-cross-compile --arch=i486 --target-os=linux
  libavutil      55. 34.101 / 55. 34.101
  libavcodec     57. 64.101 / 57. 64.101
  libavformat    57. 56.101 / 57. 56.101
  libavdevice    57.  1.100 / 57.  1.100
  libavfilter     6. 65.100 /  6. 65.100
  libswscale      4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc    54.  1.100 / 54.  1.100
Splitting the commandline.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Reading option '-v' ... matched as option 'v' (set logging level) with argument '9'.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '99'.
Reading option '-i' ... matched as input url with argument 'wav_format_recongnize_error.wav'.
Reading option 'out.wav' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Applying option v (set logging level) with argument 9.
Applying option loglevel (set logging level) with argument 99.
Successfully parsed a group of options.
Parsing a group of options: input url wav_format_recongnize_error.wav.
Successfully parsed a group of options.
Opening an input file: wav_format_recongnize_error.wav.
[file @ 0x97cfb20] Setting default whitelist 'file,crypto'
[wav @ 0x97cf400] Format wav probed with size=2048 and score=99
[wav @ 0x97cf400] Before avformat_find_stream_info() pos: 44 bytes read:65580 seeks:1 nb_streams:1
[wav @ 0x97cf400] probing stream 0 pp:32
[wav @ 0x97cf400] probing stream 0 pp:31
[wav @ 0x97cf400] probing stream 0 pp:30
[wav @ 0x97cf400] probing stream 0 pp:29
[wav @ 0x97cf400] Probe with size=16384, packets=2472 detected mp3 with score=25
[wav @ 0x97cf400] probing stream 0 pp:28
[wav @ 0x97cf400] probing stream 0 pp:27
[wav @ 0x97cf400] probing stream 0 pp:26
[wav @ 0x97cf400] probing stream 0 pp:25
[wav @ 0x97cf400] Probe with size=32768, packets=2476 detected mp3 with score=25
[wav @ 0x97cf400] probing stream 0 pp:24
[wav @ 0x97cf400] probing stream 0 pp:23
[wav @ 0x97cf400] probing stream 0 pp:22
[wav @ 0x97cf400] probing stream 0 pp:21
[wav @ 0x97cf400] probing stream 0 pp:20
[wav @ 0x97cf400] probing stream 0 pp:19
[wav @ 0x97cf400] probing stream 0 pp:18
[wav @ 0x97cf400] probing stream 0 pp:17
[wav @ 0x97cf400] Probe with size=65536, packets=2484 detected mp3 with score=25
[wav @ 0x97cf400] probing stream 0 pp:16
[wav @ 0x97cf400] probing stream 0 pp:15
[wav @ 0x97cf400] probing stream 0 pp:14
[wav @ 0x97cf400] probing stream 0 pp:13
[wav @ 0x97cf400] probing stream 0 pp:12
[wav @ 0x97cf400] probing stream 0 pp:11
[wav @ 0x97cf400] probing stream 0 pp:10
[wav @ 0x97cf400] probing stream 0 pp:9
[wav @ 0x97cf400] probing stream 0 pp:8
[wav @ 0x97cf400] probing stream 0 pp:7
[wav @ 0x97cf400] probing stream 0 pp:6
[wav @ 0x97cf400] probing stream 0 pp:5
[wav @ 0x97cf400] probing stream 0 pp:4
[wav @ 0x97cf400] probing stream 0 pp:3
[wav @ 0x97cf400] probing stream 0 pp:2
[wav @ 0x97cf400] probing stream 0 pp:1
[wav @ 0x97cf400] Probe with size=131072, packets=2500 detected mp3 with score=50
[wav @ 0x97cf400] probed stream 0
[mp1 @ 0x97d0500] Header missing
[mp1 @ 0x97d0500] Header missing
[wav @ 0x97cf400] All info found
[wav @ 0x97cf400] Estimating duration from bitrate, this may be inaccurate
[wav @ 0x97cf400] After avformat_find_stream_info() pos: 131116 bytes read:196652 seeks:1 frames:50
Input #0, wav, from 'wav_format_recongnize_error.wav':
  Duration: 00:00:58.05, bitrate: 1411 kb/s
    Stream #0:0, 50, 1/44100: Audio: mp1 ([1][0][0][0] / 0x0001), 48000 Hz, mono, s16p, 1411 kb/s
Successfully opened the file.
Parsing a group of options: output url out.wav.
Successfully parsed a group of options.
Opening an output file: out.wav.
[file @ 0x97d3760] Setting default whitelist 'file,crypto'
Successfully opened the file.
detected 6 logical cores
[graph 0 input from stream 0:0 @ 0x980dec0] Setting 'time_base' to value '1/48000'
[graph 0 input from stream 0:0 @ 0x980dec0] Setting 'sample_rate' to value '48000'
[graph 0 input from stream 0:0 @ 0x980dec0] Setting 'sample_fmt' to value 's16p'
[graph 0 input from stream 0:0 @ 0x980dec0] Setting 'channel_layout' to value '0x4'
[graph 0 input from stream 0:0 @ 0x980dec0] tb:1/48000 samplefmt:s16p samplerate:48000 chlayout:0x4
[audio format for output stream 0:0 @ 0x97e5700] Setting 'sample_fmts' to value 's16'
[audio format for output stream 0:0 @ 0x97e5700] auto-inserting filter 'auto-inserted resampler 0' between the filter 'Parsed_anull_0' and the filter 'audio format for output stream 0:0'
[AVFilterGraph @ 0x98036e0] query_formats: 4 queried, 6 merged, 3 already done, 0 delayed
[auto-inserted resampler 0 @ 0x97d0b60] [SWR @ 0x9817580] Using s16p internally between filters
[auto-inserted resampler 0 @ 0x97d0b60] ch:1 chl:mono fmt:s16p r:48000Hz -> ch:1 chl:mono fmt:s16 r:48000Hz
Output #0, wav, to 'out.wav':
  Metadata:
    ISFT            : Lavf57.56.101
    Stream #0:0, 0, 1/48000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, mono, s16, 768 kb/s
    Metadata:
      encoder         : Lavc57.64.101 pcm_s16le
Stream mapping:
  Stream #0:0 -> #0:0 (mp1 (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[mp1 @ 0x97d31c0] Header missing
Error while decoding stream #0:0: Invalid data found when processing input
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[mp1 @ 0x97d31c0] Header missing
Error while decoding stream #0:0: Invalid data found when processing input
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[mp1 @ 0x97d31c0] Header missing

.....

Error while decoding stream #0:0: Invalid data found when processing input
[mp1 @ 0x97d31c0] Header missing
Error while decoding stream #0:0: Invalid data found when processing input
[output stream 0:0 @ 0x97d2340] EOF on sink link output stream 0:0:default.
No more output streams to write to, finishing.
size=     620kB time=00:00:06.61 bitrate= 767.0kbits/s speed=7.94x    
video:0kB audio:620kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.012296%
Input file #0 (wav_format_recongnize_error.wav):
  Input stream #0:0 (audio): 4837 packets read (10239956 bytes); 827 frames decoded (317568 samples); 
  Total: 4837 packets (10239956 bytes) demuxed
Output file #0 (out.wav):
  Output stream #0:0 (audio): 826 frames encoded (317184 samples); 826 packets muxed (634368 bytes); 
  Total: 826 packets (634368 bytes) muxed
827 frames successfully decoded, 4010 decoding errors
[AVIOContext @ 0x97e0a60] Statistics: 4 seeks, 829 writeouts
[AVIOContext @ 0x97d7cc0] Statistics: 10305536 bytes read, 1 seeks
Conversion failed!}}}

[lesterkong]

the ffmpeg version 3.2.4 cannot recognize this wave file format

[lesterkong]

if I modify libavformat/wavdec.c line 157 st->probe_packets = FFMIN(st->probe_packets, 32); to st->probe_packets = FFMIN(st->probe_packets, 14); it's ok

[Carl Eugen Hoyos]

Regression since 40a3e1e9c54997e4dfc7802b5a758b68ceb64982, see ticket #6106.

[ngaullie]

Issue has been fixed (I have not tried to determine when).

[Carl Eugen Hoyos]

Fixed by Limin Wang in c22665ae691ca313793330bfa7c9a2b70d53cbdf