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device (vaapi or dxva2)
Reason: For some cases, such as 2 or more graphics cards existing, the
default command line may fail because ffmpeg does not open the correct
device node:
ffmpeg -hwaccel qsv -c:v h264_qsv -i test.264 -c:v h264_qsv out.264
Let user choose the proper one by running like below:
ffmpeg -hwaccel qsv -qsv_device /dev/dri/renderD128 -c:v h264_qsv \
-i test.264 -c:v h264_qsv out.264
Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
Signed-off-by: Huang, Zhengxu <zhengxu.maxwell@gmail.com>
Signed-off-by: Andrew, Zhang <huazh407@gmail.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>
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Set up the encoder with a hardware context which will match the one
the decoder will use when it starts later.
Includes 02c2761973dfc886e94a60a9c7d6d30c296d5b8c, with additional
hackery to get around a3a0230a9870b9018dc7415ae5872784d524cfe5 being
skipped.
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the merge commit 1b04ea1 "avconv: create simple filtergraphs earlier"
will init the filtergraphs earlier, then init the QSV transcode can't
suppose the nb_filters's value, else lead to the QSV transcode performance
drop.
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
Reviewed-by: Ivan Uskov <ivan.uskov@nablet.com
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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* commit 'fb472e1a11a4e0caed2c3c91da01ea8e35d9e3f8':
avconv: add support for Intel QSV-accelerated transcoding
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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