"Lions!" "And tigers!" "And bears!" "Oh, My!" -- The Wizard of Oz.
I did search for answers, but this subject is apparently too esoteric.
1, Do I need to explicitly specify BT.709 for an encoder or does ffmpeg default
to it?
2, Should I specify '-color_primaries' or '-color_trc' or '-colorspace'?
Codec documentation (https://ffmpeg.org/ffmpeg-codecs.html) references to
'bt709' [1]
-color_primaries 0
-color_trc 0
-colorspace 1
[1] The integers I use assume that the documentation lists are ascending from
zero.
Aside from the integer assigned, what's the difference between the '-color_primaries' & '-color_trc'
& '-colorspace' directives?
As you can see below, the transcode 'Output' status doesn't say what it
defaults to.
Thanks,
Mark.
Input #0, mpegts, from 'IN.M2TS':
Duration: 00:51:03.85, start: 600.000000, bitrate: 29370 kb/s
Program 1
Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(tv, bt709, progressive),
1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc
Output #0, matroska, to 'OUT.MKV':
Metadata:
encoder : Lavf58.31.104
Stream #0:0: Video: hevc (libx265), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 59.94 fps,
1k tbn, 59.94 tbc
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