Hi
i have problems using -tag:v or -vtag to set the correct codec for Quicktime
in my case encoding xdcamhd422 defaults to xd5e for 25P but needs to be
set xd5c for 50i when encoded with interlaced video.
ffmpeg -i PRORES_HD50I.MOV -map 0:v -c:v mpeg2video -flags +ildct+ilme -top 1
-dc 10 -q:v 1 -qmin 1 -bf 2 \
-rc_max_vbv_use 1 -rc_min_vbv_use 1 -g 12 -b:v
50000k -minrate 50000k \
-maxrate 50000k -bufsize 17825792 -tag:v xd5c
TEST.MOV
This seems to be true for all codecs this is a simple example to show this
-tag:v apcs = prores LT
./ffmpeg -f lavfi -r 25 -i testsrc -t 10 -c:v prores -tag:v apcs
~/Desktop/TEST_SRC.MOV
With this command de resulting file is still set to apcn as tested with dumpster
and Quicktime7 player.
ffmpeg version N-79717-gdeaf58a Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 7.0.2 (clang-700.1.81)
configuration: --disable-sdl --enable-gpl --enable-nonfree --enable-static
libavutil 55. 23.100 / 55. 23.100
libavcodec 57. 38.100 / 57. 38.100
libavformat 57. 35.100 / 57. 35.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 44.100 / 6. 44.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, lavfi, from 'testsrc':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR
1:1 DAR 4:3], 25 fps, 25 tbr, 25 tbn
File '/Users/macbook/Desktop/TEST_SRC.MOV' already exists. Overwrite ? [y/N] y
[prores @ 0x7fa6ac824400] encoding with ProRes standard (apcn) profile
[prores @ 0x7fa6ac017400] encoding with ProRes standard (apcn) profile
[prores @ 0x7fa6ac807400] encoding with ProRes standard (apcn) profile
[mov @ 0x7fa6ac009600] Using AVStream.codec to pass codec parameters to muxers
is deprecated, use AVStream.codecpar instead.
Output #0, mov, to '/Users/macbook/Desktop/TEST_SRC.MOV':
Metadata:
encoder : Lavf57.35.100
Stream #0:0: Video: prores (apcn / 0x6E637061), yuv422p10le, 320x240 [SAR
1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 12800 tbn
Metadata:
encoder : Lavc57.38.100 prores
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> prores (native))
Press [q] to stop, [?] for help
frame= 250 fps=0.0 q=-0.0 Lsize= 4902kB time=00:00:09.96
bitrate=4032.1kbits/s speed=13.3x
video:4901kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 0.034953%
Regards Rens
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