[FFmpeg-trac] #6800(avformat:new): Keep MOV tags in "meta" atom during transcode
FFmpeg
trac at avcodec.org
Thu Nov 2 22:24:10 EET 2017
#6800: Keep MOV tags in "meta" atom during transcode
-------------------------------------+-------------------------------------
Reporter: Zenitram | Type:
Status: new | enhancement
Component: avformat | Priority: normal
Keywords: bounty tags | Version: git-
Blocking: | master
Analyzed by developer: 0 | Blocked By:
| Reproduced by developer: 0
-------------------------------------+-------------------------------------
Some tags in "moov"/"udta" atom (e.g. "©nam", but not "©src") are kept
during a transcode from MOV to MOV, but all tags in "moov"/"meta" atom are
discarded, despite the fact they are listed in the Output section during
transcode:
How to reproduce:
{{{
% ffmpeg -i input.mov output.mov
ffmpeg version N-88514-gd5995c531d Copyright (c) 2000-2017 the FFmpeg
developers
built with gcc 7.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass
--enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-
libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy
--enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx
--enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp
--enable-libvidstab --enable-libvorbis --enable-cuda --enable-cuvid
--enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-
libmfx
libavutil 56. 0.100 / 56. 0.100
libavcodec 58. 1.100 / 58. 1.100
libavformat 58. 0.102 / 58. 0.102
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 0.101 / 7. 0.101
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
title : test nam
encoder : Lavf58.0.102
net.mediaarea.blablablabla01: test 1
net.mediaarea.blablabla02: test 2
Duration: 00:00:00.04, start: 0.000000, bitrate: 465 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
320x240 [SAR 1:1 DAR 4:3], 264 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
(default)
Metadata:
handler_name : DataHandler
encoder : Lavc58.1.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 000001f556dceb20] using SAR=1/1
[libx264 @ 000001f556dceb20] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 000001f556dceb20] profile High, level 1.3
[libx264 @ 000001f556dceb20] 264 - core 152 r2851 ba24899 - H.264/MPEG-4
AVC codec - Copyleft 2003-2017 - 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=7
lookahead_threads=1 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=25
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
Output #0, mov, to 'output.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
title : test nam
net.mediaarea.blablabla02: test 2
net.mediaarea.blablablabla01: test 1
encoder : Lavf58.0.102
Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p,
320x240 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
handler_name : DataHandler
encoder : Lavc58.1.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 1 fps=0.0 q=28.0 Lsize= 2kB time=00:00:00.00
bitrate=219179.5kbits/s speed=0.00311x
video:1kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 60.074905%
[libx264 @ 000001f556dceb20] frame I:1 Avg QP:15.87 size: 646
[libx264 @ 000001f556dceb20] mb I I16..4: 90.7% 4.7% 4.7%
[libx264 @ 000001f556dceb20] 8x8 transform intra:4.7%
[libx264 @ 000001f556dceb20] coded y,uvDC,uvAC intra: 2.8% 12.7% 7.0%
[libx264 @ 000001f556dceb20] i16 v,h,dc,p: 83% 11% 6% 0%
[libx264 @ 000001f556dceb20] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 29% 29%
7% 0% 0% 0% 0% 0%
[libx264 @ 000001f556dceb20] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 53% 5%
0% 1% 0% 0% 0% 1%
[libx264 @ 000001f556dceb20] i8c dc,h,v,p: 49% 11% 39% 0%
[libx264 @ 000001f556dceb20] kb/s:129.20
}}}
same with " -map_metadata 0".
metadata from "meta" atom should be kept (mapped to the output file),
preferably by default ("ffmpeg -i input.mov output.mov") or with "
-map_metadata 0".
File with "udta" and "meta" atoms attached.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6800>
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