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Signed-off-by: Rick Kern <kernrj@gmail.com>
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Signed-off-by: Rick Kern <kernrj@gmail.com>
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Handles insertion into existing SEI NAL unit, inserts emulation
prevention bytes.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Prevents encode callback from running after codec is closed.
Fixes a crash when an error is returned.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Signed-off-by: Rick Kern <kernrj@gmail.com>
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Signed-off-by: Rick Kern <kernrj@gmail.com>
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VideoToolbox doesn't supply parameter sets until the first frame is done
encoding. This spins up a temporary encoder and encodes a single frame to
get this data.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Allocates a buffer with padding, and with enough room for start codes when
length codes are smaller.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Signed-off-by: Rick Kern <kernrj@gmail.com>
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Signed-off-by: Rick Kern <kernrj@gmail.com>
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Setting AVFrame.pic_type to AV_PICTURE_TYPE_I will force an I-frame.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Add frames_before and frames_after as hints that there will be frames before
or after the frames produced in this session. This may help with
concatenation issues like bit rate spikes.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Hint to the encoder that encoding should be done in real-time, even at the
expense of quality.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Signed-off-by: Rick Kern <kernrj@gmail.com>
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Some devices output an invalid DTS when B-frames aren't used. Using PTS for
the DTS in this case.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Now set by the encoder, not used as an input parameter.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Add an entropy setting to choose between CAVLC and CABAC.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Software encoding can be allowed by setting allow_sw to 1.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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Handle AV_PIX_FMT_VIDEOTOOLBOX.
This results in better energy usage and faster encoding, especially on iOS.
When the buffer comes from the media server, no memcpy's are needed.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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This reduces the chance of a memcpy in the media server.
Signed-off-by: Rick Kern <kernrj@gmail.com>
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CMVideoFormatDescriptionGetH264ParameterSetAtIndex() fails on some
hardware/OS versions when retrieving the parameter set count alone.
Signed-off-by: Rick Kern <kernrj@gmail.com>
Signed-off-by: wm4 <nfxjfg@googlemail.com>
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Fixes crash in #5352. VTCompressionSessionInvalidate() crashes if the
internal encoder hasn't completed, but hasn't experienced an error.
The function call isn't needed since the encoder is invalidated when
the reference count reaches 0 anyway.
Signed-off-by: Rick Kern <kernrj@gmail.com>
Signed-off-by: wm4 <nfxjfg@googlemail.com>
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These macros were added in OS X 10.11, and the file compiles without warnings
on both 10.10 and 10.11 with them removed.
Thanks to mark4o on IRC for pointing out the failure and testing the patch.
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Autodetected by default. Encode using -codec:v h264_videotoolbox.
Signed-off-by: Rick Kern <kernrj@gmail.com>
Signed-off-by: wm4 <nfxjfg@googlemail.com>
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