[FFmpeg-trac] #4906(undetermined:new): Wrong channel mapping
FFmpeg
trac at avcodec.org
Mon Oct 5 17:31:43 CEST 2015
#4906: Wrong channel mapping
-------------------------------------+-------------------------------------
Reporter: cgbug | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by cgbug):
The files contain an audible description of the channels. So you can
easily check if it is working on your system.
Command line:
ffplay -report surround-7-1-test.flac
ffplay version N-75746-g84b4998 Copyright (c) 2003-2015 the FFmpeg
developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype
--enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-libopus --enable-librtmp --enable-
libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-
libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack
--enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs
--enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 2.100 / 55. 2.100
libavcodec 57. 4.100 / 57. 4.100
libavformat 57. 3.100 / 57. 3.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 10.100 / 6. 10.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
nan : 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0
[flac @ 04d745c0] Format flac probed with size=2048 and score=50
[flac @ 04d745c0] Before avformat_find_stream_info() pos: 194 bytes
read:32768 seeks:0
[flac @ 04d745c0] All info found
[flac @ 04d745c0] After avformat_find_stream_info() pos: 120832 bytes
read:131072 seeks:0 frames:1
Input #0, flac, from 'surround-7-1-test.flac':
Metadata:
track : 1
TITLE : 7.1 Surround Test
DATE : 2015
ARTIST : Surround Test
COMMENTS : phoenixdigital
Duration: 00:00:36.09, start: 0.000000, bitrate: 1290 kb/s
Stream #0:0, 1, 1/44100: Audio: flac, 44100 Hz, 7.1, s16
detected 8 logical cores
[ffplay_abuffer @ 04e1ff40] Setting 'sample_rate' to value '44100'
[ffplay_abuffer @ 04e1ff40] Setting 'sample_fmt' to value 's16'
[ffplay_abuffer @ 04e1ff40] Setting 'channels' to value '8'
[ffplay_abuffer @ 04e1ff40] Setting 'time_base' to value '1/44100'
[ffplay_abuffer @ 04e1ff40] Setting 'channel_layout' to value '0x63f'
[ffplay_abuffer @ 04e1ff40] tb:1/44100 samplefmt:s16 samplerate:44100
chlayout:0x63f
[AVFilterGraph @ 04e1f9e0] query_formats: 2 queried, 3 merged, 0 already
done, 0 delayed
SDL_OpenAudio (8 channels, 44100 Hz): 1 (mono) and 2 (stereo) channels
supported
SDL_OpenAudio (6 channels, 44100 Hz): DirectSound CreateSoundBuffer:
Invalid parameter
SDL_OpenAudio (4 channels, 44100 Hz): DirectSound CreateSoundBuffer:
Invalid parameter
Audio frame changed from rate:44100 ch:8 fmt:s16 layout:7.1 serial:-1 to
rate:44100 ch:8 fmt:s16 layout:7.1 serial:1
[ffplay_abuffer @ 06501d80] Setting 'sample_rate' to value '44100'
[ffplay_abuffer @ 06501d80] Setting 'sample_fmt' to value 's16'
[ffplay_abuffer @ 06501d80] Setting 'channels' to value '8'
[ffplay_abuffer @ 06501d80] Setting 'time_base' to value '1/44100'
[ffplay_abuffer @ 06501d80] Setting 'channel_layout' to value '0x63f'
[ffplay_abuffer @ 06501d80] tb:1/44100 samplefmt:s16 samplerate:44100
chlayout:0x63f
[ffplay_abuffersink @ 06501e00] auto-inserting filter 'auto-inserted
resampler 0' between the filter 'ffplay_abuffer' and the filter
'ffplay_abuffersink'
[AVFilterGraph @ 04d7d920] query_formats: 2 queried, 1 merged, 3 already
done, 0 delayed
[auto-inserted resampler 0 @ 06501ee0] [SWR @ 06510c60] Using s16p
internally between filters
0.320377 0.000000 0.226541 0.000000 0.226541 0.000000 0.226541 0.000000
0.000000 0.320377 0.226541 0.000000 0.000000 0.226541 0.000000 0.226541
[auto-inserted resampler 0 @ 06501ee0] ch:8 chl:7.1 fmt:s16 r:44100Hz ->
ch:2 chl:stereo fmt:s16 r:44100Hz
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4906#comment:2>
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