[FFmpeg-trac] #2899(avfilter:open): -map_channel / -af pan are not processing 12 channel audio inputs
FFmpeg
trac at avcodec.org
Sat Aug 24 18:36:32 CEST 2013
#2899: -map_channel / -af pan are not processing 12 channel audio inputs
------------------------------------+------------------------------------
Reporter: hackeron | Owner:
Type: defect | Status: open
Priority: important | Component: avfilter
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Comment (by hackeron):
This was working in 2011-11 and was already broken in 2012-10 - I have
tried your suggestion but it still results in an empty file. This is the
full command with the debug output:
{{{
root at XanBox:/home/deployer# ffmpeg -v debug -i test.wav -filter:a
aformat=channel_layouts=0xFFF -af "pan=0x4|c0=c4" -y ch4.wav
ffmpeg version N-55065-g6b68e2a Copyright (c) 2000-2013 the FFmpeg
developers
built on Jul 29 2013 20:46:32 with gcc 4.7 (Ubuntu/Linaro
4.7.3-1ubuntu1)
configuration: --enable-pic --enable-shared --extra-ldflags=-ldl
--enable-gpl --enable-libfaac --enable-libfdk-aac --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora
--enable-libvorbis --enable-libx264 --enable-nonfree --enable-version3
--extra-cflags=-fPIC --extra-ldflags=-fPIC
libavutil 52. 40.100 / 52. 40.100
libavcodec 55. 19.100 / 55. 19.100
libavformat 55. 12.102 / 55. 12.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.100 / 3. 82.100
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
Splitting the commandline.
Reading option '-v' ... matched as option 'v' (set logging level) with
argument 'debug'.
Reading option '-i' ... matched as input file with argument 'test.wav'.
Reading option '-filter:a' ... matched as option 'filter' (set stream
filtergraph) with argument 'aformat=channel_layouts=0xFFF'.
Reading option '-af' ... matched as option 'af' (set audio filters) with
argument 'pan=0x4|c0=c4'.
Reading option '-y' ... matched as option 'y' (overwrite output files)
with argument '1'.
Reading option 'ch4.wav' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option v (set logging level) with argument debug.
Applying option y (overwrite output files) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input file test.wav.
Successfully parsed a group of options.
Opening an input file: test.wav.
[wav @ 0x13018c0] Format wav probed with size=2048 and score=99
[wav @ 0x13018c0] File position before avformat_find_stream_info() is 80
[wav @ 0x13018c0] parser not found for codec pcm_s16le, packets or times
may be invalid.
[wav @ 0x13018c0] probing stream 0 pp:4
[wav @ 0x13018c0] probing stream 0 pp:3
[wav @ 0x13018c0] probing stream 0 pp:2
[wav @ 0x13018c0] probing stream 0 pp:1
[wav @ 0x13018c0] probed stream 0
[wav @ 0x13018c0] parser not found for codec pcm_s16le, packets or times
may be invalid.
[wav @ 0x13018c0] Probe buffer size limit of 5000000 bytes reached
[wav @ 0x13018c0] File position after avformat_find_stream_info() is
5002160
Input #0, wav, from 'test.wav':
Metadata:
encoder : Lavf55.12.102
Duration: 00:00:10.89, bitrate: 9216 kb/s
Stream #0:0, 1226, 1/48000: Audio: pcm_s16le ([1][0][0][0] / 0x0001),
48000 Hz, 12 channels, s16, 9216 kb/s
Successfully opened the file.
Parsing a group of options: output file ch4.wav.
Applying option filter:a (set stream filtergraph) with argument
aformat=channel_layouts=0xFFF.
Applying option af (set audio filters) with argument pan=0x4|c0=c4.
Successfully parsed a group of options.
Opening an output file: ch4.wav.
Successfully opened the file.
detected 4 logical cores
[Parsed_pan_0 @ 0x17f72a0] compat: called with args=[0x4|c0=c4]
[Parsed_pan_0 @ 0x17f72a0] Setting 'args' to value '0x4|c0=c4'
[graph 0 input from stream 0:0 @ 0x17f7680] Setting 'time_base' to value
'1/48000'
[graph 0 input from stream 0:0 @ 0x17f7680] Setting 'sample_rate' to value
'48000'
[graph 0 input from stream 0:0 @ 0x17f7680] Setting 'sample_fmt' to value
's16'
[graph 0 input from stream 0:0 @ 0x17f7680] Setting 'channels' to value
'12'
[graph 0 input from stream 0:0 @ 0x17f7680] tb:1/48000 samplefmt:s16
samplerate:48000 chlayout:(null)
[audio format for output stream 0:0 @ 0x17f8d60] Setting 'sample_fmts' to
value 's16'
[Parsed_pan_0 @ 0x17f72a0] auto-inserting filter 'auto-inserted resampler
0' between the filter 'graph 0 input from stream 0:0' and the filter
'Parsed_pan_0'
[AVFilterGraph @ 0x17f6880] query_formats: 4 queried, 7 merged, 3 already
done, 0 delayed
[auto-inserted resampler 0 @ 0x17f9a80] ch:12 chl:12 channels fmt:s16
r:48000Hz -> ch:12 chl:12 channels fmt:s16 r:48000Hz
[Parsed_pan_0 @ 0x17f72a0] o0 =
[Parsed_pan_0 @ 0x17f72a0] Pure channel mapping detected: M
Output #0, wav, to 'ch4.wav':
Metadata:
ISFT : Lavf55.12.102
Stream #0:0, 0, 1/48000: Audio: pcm_s16le ([1][0][0][0] / 0x0001),
48000 Hz, mono, s16, 768 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le -> pcm_s16le)
Press [q] to stop, [?] for help
[output stream 0:0 @ 0x17f7860] EOF on sink link output stream
0:0:default.
No more output streams to write to, finishing.
size= 1021kB time=00:00:10.89 bitrate= 768.1kbits/s
video:0kB audio:1021kB subtitle:0 global headers:0kB muxing overhead
0.007650%
3076 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x17f6600] Statistics: 4 seeks, 3079 writeouts
[AVIOContext @ 0x1309fc0] Statistics: 12549584 bytes read, 0 seeks
}}}
Any ideas? - Am I not using the channel_layouts correctly?
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2899#comment:4>
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