#4835: Using -ac:a:0 6 with DCA as codec fails
-----------------------------------+----------------------------------
Reporter: microchip | Type: defect
Status: new | Priority: normal
Component: avcodec | Version: 2.7
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-----------------------------------+----------------------------------
Summary of the bug: When using -ac:a:0 6 with dca as encoder, ffmpeg
errors out with DCA saying that channel layout 5.1 is not supported. If I
use -ac:a:0 9 instead, the encoding works and dca uses 5.1 channels
How to reproduce:
{{{
ffmpeg -i DLNA/Punk/Nemesis.mkv -map_metadata -1 -map 0:0 -c:v libx264
-map 0:1 -c:a:0 dca -b:a:0 1509k -ac:a:0 6 -strict -2 -y output.mkv
ffmpeg version 2.7.2 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8 (SUSE Linux)
configuration: --shlibdir=/usr/lib64 --prefix=/usr
--mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-
static --enable-debug --disable-stripping --extra-cflags='-fmessage-
length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-
protector -funwind-tables -fasynchronous-unwind-tables -g' --enable-pic
--optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall
-D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-
unwind-tables -g' --enable-gpl --enable-x11grab --enable-version3
--enable-pthreads --datadir=/usr/share/ffmpeg --enable-avfilter --enable-
libpulse --enable-libwebp --enable-libvpx --enable-libopus --enable-
libmp3lame --enable-libvorbis --enable-libtheora --enable-libspeex
--enable-libxvid --enable-libx264 --enable-libx265 --enable-
libschroedinger --enable-libgsm --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-postproc --enable-libdc1394 --enable-librtmp
--enable-libfreetype --enable-avresample --enable-libtwolame --enable-
libvo-aacenc --enable-gnutls --enable-libass --enable-frei0r --enable-
libcelt --enable-libcdio --enable-ladspa
libavutil 54. 27.100 / 54. 27.100
libavcodec 56. 41.100 / 56. 41.100
libavformat 56. 36.100 / 56. 36.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 16.101 / 5. 16.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.100 / 1. 2.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, matroska,webm, from 'DLNA/Punk/Nemesis.mkv':
Metadata:
encoder : libebml v1.3.0 + libmatroska v1.4.1
creation_time : 2014-08-05 07:59:22
Duration: 01:35:41.28, start: 0.000000, bitrate: 10257 kb/s
Stream #0:0: Video: h264 (High), yuv420p, 1920x1080, SAR 1:1 DAR 16:9,
23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
Metadata:
_STATISTICS_WRITING_APP: mkvmerge v7.1.0 ('Good Love') 64bit built
on Jul 27 2014 15:30:41
_STATISTICS_WRITING_APP-eng: mkvmerge v7.1.0 ('Good Love') 64bit
built on Jul 27 2014 15:30:41
_STATISTICS_WRITING_DATE_UTC: 2014-08-05 07:59:22
_STATISTICS_WRITING_DATE_UTC-eng: 2014-08-05 07:59:22
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
BPS : 9359707
BPS-eng : 9359707
DURATION : 01:35:41.277000000
DURATION-eng : 01:35:41.277000000
NUMBER_OF_FRAMES: 137653
NUMBER_OF_FRAMES-eng: 137653
NUMBER_OF_BYTES : 6717083928
NUMBER_OF_BYTES-eng: 6717083928
Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
(default)
Metadata:
title : AC-3 5.1
_STATISTICS_WRITING_APP: mkvmerge v7.1.0 ('Good Love') 64bit built
on Jul 27 2014 15:30:41
_STATISTICS_WRITING_APP-eng: mkvmerge v7.1.0 ('Good Love') 64bit
built on Jul 27 2014 15:30:41
_STATISTICS_WRITING_DATE_UTC: 2014-08-05 07:59:22
_STATISTICS_WRITING_DATE_UTC-eng: 2014-08-05 07:59:22
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
BPS : 448000
BPS-eng : 448000
DURATION : 01:35:41.120000000
DURATION-eng : 01:35:41.120000000
NUMBER_OF_FRAMES: 179410
NUMBER_OF_FRAMES-eng: 179410
NUMBER_OF_BYTES : 321502720
NUMBER_OF_BYTES-eng: 321502720
Stream #0:2(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
Metadata:
title : AC-3 5.1
_STATISTICS_WRITING_APP: mkvmerge v7.1.0 ('Good Love') 64bit built
on Jul 27 2014 15:30:41
_STATISTICS_WRITING_APP-eng: mkvmerge v7.1.0 ('Good Love') 64bit
built on Jul 27 2014 15:30:41
_STATISTICS_WRITING_DATE_UTC: 2014-08-05 07:59:22
_STATISTICS_WRITING_DATE_UTC-eng: 2014-08-05 07:59:22
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
BPS : 448000
BPS-eng : 448000
DURATION : 01:35:41.248000000
DURATION-eng : 01:35:41.248000000
NUMBER_OF_FRAMES: 179414
NUMBER_OF_FRAMES-eng: 179414
NUMBER_OF_BYTES : 321509888
NUMBER_OF_BYTES-eng: 321509888
[libx264 @ 0xd395a0] using SAR=1/1
[libx264 @ 0xd395a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX XOP FMA4 FMA3 LZCNT BMI1
[libx264 @ 0xd395a0] profile High, level 4.0
[libx264 @ 0xd395a0] 264 - core 148 r2597 e86f3a1 - H.264/MPEG-4 AVC codec
- Copyleft 2003-2015 - http://www.videolan.org/x264.html - options:
cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1
cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23
scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[dca @ 0xd09c60] Specified channel layout '5.1' is not supported
Output #0, matroska, to 'output.mkv':
Stream #0:0: Video: h264 (libx264), yuv420p, 1920x1080 [SAR 1:1 DAR
16:9], q=-1--1, 23.98 fps, 23.98 tbn, 23.98 tbc (default)
Metadata:
encoder : Lavc56.41.100 libx264
Stream #0:1: Audio: dts, 0 channels, 128 kb/s (default)
Metadata:
encoder : Lavc56.41.100 dca
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (ac3 (native) -> dts (dca))
Error while opening encoder for output stream #0:1 - maybe incorrect
parameters such as bit_rate, rate, width or height
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4835>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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