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doc/indevs: Docs for Blackmagic high bit depth video/audio

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Reviewed-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Georg Lippitsch 2015-01-18 20:44:35 +01:00 committed by Michael Niedermayer
parent 03cecf45c1
commit c0367f78d5
1 changed files with 31 additions and 3 deletions
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doc/indevs.texi
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@ -1112,10 +1112,10 @@ need to configure with the appropriate @code{--extra-cflags}
and @code{--extra-ldflags}.
On Windows, you need to run the IDL files through @command{widl}.
DeckLink is very picky about the formats it supports. Pixel format is always
uyvy422, framerate and video size must be determined for your device with
DeckLink is very picky about the formats it supports. Pixel format is
uyvy422 or v210, framerate and video size must be determined for your device with
@command{-list_formats 1}. Audio sample rate is always 48 kHz and the number
of channels currently is limited to 2 (stereo).
of channels can be 2, 8 or 16.
@subsection Options
@ -1129,6 +1129,16 @@ Defaults to @option{false}.
If set to @option{true}, print a list of supported formats and exit.
Defaults to @option{false}.
@item bm_v210
If set to @samp{1}, video is captured in 10 bit v210 instead
of uyvy422. Not all Blackmagic devices support this option.
@item bm_channels <CHANNELS>
Number of audio channels, can be 2, 8 or 16
@item bm_audiodepth <BITDEPTH>
Audio bit depth, can be 16 or 32.
@end table
@subsection Examples
@ -1153,6 +1163,24 @@ Capture video clip at 1080i50 (format 11):
ffmpeg -f decklink -i 'Intensity Pro@@11' -acodec copy -vcodec copy output.avi
@end example
@item
Capture video clip at 1080i50 10 bit:
@example
ffmpeg -bm_v210 1 -f decklink -i 'UltraStudio Mini Recorder@@11' -acodec copy -vcodec copy output.avi
@end example
@item
Capture video clip at 720p50 with 32bit audio:
@example
ffmpeg -bm_audiodepth 32 -f decklink -i 'UltraStudio Mini Recorder@@14' -acodec copy -vcodec copy output.avi
@end example
@item
Capture video clip at 576i50 with 8 audio channels:
@example
ffmpeg -bm_channels 8 -f decklink -i 'UltraStudio Mini Recorder@@3' -acodec copy -vcodec copy output.avi
@end example
@end itemize