[FFmpeg-trac] #9996(ffmpeg:new): When remuxing dolby atmos mkv to mp4, complexity index is not present.
FFmpeg
trac at avcodec.org
Fri Oct 28 18:58:56 EEST 2022
#9996: When remuxing dolby atmos mkv to mp4, complexity index is not present.
-----------------------------------+---------------------------------------
Reporter: BlueWindy | Type: defect
Status: new | Priority: normal
Component: ffmpeg | Version: unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-----------------------------------+---------------------------------------
Summary of the bug:
Here is a Dolby Atmos sample file with an EAC3-JOC audio stream :
https://we.tl/jxvi4Pgwz9
source : https://thedigitaltheater.com/dolby-trailers/
From this, if I demux the EAC3-JOC, as you can see the complexity index is
set correctly.
<img width="346" alt="demuxed eac3-joc" src="https://user-
images.githubusercontent.com/40682277/198607696-cace19e5-ea56-4544-a1a7-6767ffe5027d.png">
However, when I remux MKV to MP4, the complexity index is not present.
<img width="338" alt="MKV to MP4" src="https://user-
images.githubusercontent.com/40682277/198609017-02fc30f6-d458-4412-81d5-2ba1bc04a44c.png">
The reason this bug needs to be resolved is that, in the case of a
smartphone that supports Dolby Atmos, the Dolby Atmos virtualizer is
automatically activated only when the complexity index is presented.
How to reproduce:
{{{
ffmpeg -i DD+Atmos.mkv -c copy DD+Atmos.mp4
ffmpeg version N-108886-g79508ee523-20221028 Copyright (c) 2000-2022 the
FFmpeg developers
built with gcc 12.2.0 (crosstool-NG 1.25.0.90_cf9beb1)
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static
--pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64
--target-os=mingw32 --enable-gpl --enable-version3 --disable-debug
--disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2
--enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp
--enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl
--disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib
--enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth
--enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-
ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-
libkvazaar --enable-libass --enable-libbluray --enable-libjxl --enable-
libmp3lame --enable-libopus --enable-librist --enable-libssh --enable-
libtheora --enable-libvpx --enable-libwebp --enable-lv2 --disable-libmfx
--enable-libvpl --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-
librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-
libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-
libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-
vulkan --enable-libshaderc --enable-libplacebo --enable-libx264 --enable-
libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-
libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-
ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-
version=20221028
libavutil 57. 39.101 / 57. 39.101
libavcodec 59. 51.100 / 59. 51.100
libavformat 59. 34.101 / 59. 34.101
libavdevice 59. 8.101 / 59. 8.101
libavfilter 8. 49.101 / 8. 49.101
libswscale 6. 8.112 / 6. 8.112
libswresample 4. 9.100 / 4. 9.100
libpostproc 56. 7.100 / 56. 7.100
Input #0, matroska,webm, from 'DD+Atmos.mkv':
Metadata:
encoder : libebml v1.3.4 + libmatroska v1.4.5
creation_time : 2018-03-08T15:37:18.000000Z
Duration: 00:01:51.03, start: 0.000000, bitrate: 9165 kb/s
Stream #0:0: Video: h264 (High), yuv420p(progressive), 1920x1080 [SAR
1:1 DAR 16:9], 30 fps, 30 tbr, 1k tbn (default)
Metadata:
BPS : 8719852
BPS-eng : 8719852
DURATION : 00:01:50.966000000
DURATION-eng : 00:01:50.966000000
NUMBER_OF_FRAMES: 3329
NUMBER_OF_FRAMES-eng: 3329
NUMBER_OF_BYTES : 120950899
NUMBER_OF_BYTES-eng: 120950899
_STATISTICS_WRITING_APP: mkvmerge v12.0.0 ('Trust / Lust') 64bit
_STATISTICS_WRITING_APP-eng: mkvmerge v12.0.0 ('Trust / Lust') 64bit
_STATISTICS_WRITING_DATE_UTC: 2018-03-08 15:37:18
_STATISTICS_WRITING_DATE_UTC-eng: 2018-03-08 15:37:18
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
(default)
Metadata:
BPS : 448000
BPS-eng : 448000
DURATION : 00:01:50.944000000
DURATION-eng : 00:01:50.944000000
NUMBER_OF_FRAMES: 3467
NUMBER_OF_FRAMES-eng: 3467
NUMBER_OF_BYTES : 6212864
NUMBER_OF_BYTES-eng: 6212864
_STATISTICS_WRITING_APP: mkvmerge v12.0.0 ('Trust / Lust') 64bit
_STATISTICS_WRITING_APP-eng: mkvmerge v12.0.0 ('Trust / Lust') 64bit
_STATISTICS_WRITING_DATE_UTC: 2018-03-08 15:37:18
_STATISTICS_WRITING_DATE_UTC-eng: 2018-03-08 15:37:18
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[mp4 @ 000001d3e2ed6980] track 1: codec frame size is not set
Output #0, mp4, to 'DD+Atmos.mp4':
Metadata:
encoder : Lavf59.34.101
Stream #0:0: Video: h264 (High) (avc1 / 0x31637661),
yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 30 fps, 30
tbr, 16k tbn (default)
Metadata:
BPS : 8719852
BPS-eng : 8719852
DURATION : 00:01:50.966000000
DURATION-eng : 00:01:50.966000000
NUMBER_OF_FRAMES: 3329
NUMBER_OF_FRAMES-eng: 3329
NUMBER_OF_BYTES : 120950899
NUMBER_OF_BYTES-eng: 120950899
_STATISTICS_WRITING_APP: mkvmerge v12.0.0 ('Trust / Lust') 64bit
_STATISTICS_WRITING_APP-eng: mkvmerge v12.0.0 ('Trust / Lust') 64bit
_STATISTICS_WRITING_DATE_UTC: 2018-03-08 15:37:18
_STATISTICS_WRITING_DATE_UTC-eng: 2018-03-08 15:37:18
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:1(eng): Audio: eac3 (ec-3 / 0x332D6365), 48000 Hz, 5.1(side),
fltp, 448 kb/s (default)
Metadata:
BPS : 448000
BPS-eng : 448000
DURATION : 00:01:50.944000000
DURATION-eng : 00:01:50.944000000
NUMBER_OF_FRAMES: 3467
NUMBER_OF_FRAMES-eng: 3467
NUMBER_OF_BYTES : 6212864
NUMBER_OF_BYTES-eng: 6212864
_STATISTICS_WRITING_APP: mkvmerge v12.0.0 ('Trust / Lust') 64bit
_STATISTICS_WRITING_APP-eng: mkvmerge v12.0.0 ('Trust / Lust') 64bit
_STATISTICS_WRITING_DATE_UTC: 2018-03-08 15:37:18
_STATISTICS_WRITING_DATE_UTC-eng: 2018-03-08 15:37:18
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 3329 fps=0.0 q=-1.0 Lsize= 124269kB time=00:01:50.93
bitrate=9176.7kbits/s speed= 995x
video:118116kB audio:6067kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 0.068845%
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9996>
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