FFmpeg

45139 Commits

37 Branches

400 Tags

484 MiB

Tag: Branch: Tree: 5d01bd181b

Commit Graph

Author	SHA1	Message	Date
Maxym Dmytrychenko	cca5e4f040	qsv: adding Multi Frame Encode support Starting from API 1.25 helps to improve performance of the simultaneous encode, 1:N scenario, like: ./avconv -y -hwaccel qsv -c:v h264_qsv -r 30000/1001 -i ~/bbb_sunflower_1080p_60fps_normal.mp4 -vframes 600 -an \ -filter_complex "split=2[s1][s2]; [s1]scale_qsv=1280:720[o1]; [s2]scale_qsv=960:540[o2]" \ -map [o1] -c:v h264_qsv -b:v 3200k -minrate 3200k -maxrate 3200k -f rawvideo /tmp/3200a.264 \ -map [o2] -c:v h264_qsv -b:v 1750k -minrate 1750k -maxrate 1750k -f rawvideo /tmp/1750a.264 Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>	7 years ago
Luca Barbato	ea25ccd1b2	qsv: Join the derived session to the parent Should improve the performance on multiple transcoding from a single source.	7 years ago
Huang, Zhengxu	a5a6ac1a12	libavfilter/overlay_qsv: Add QSV overlay vpp filter The filter supports two inputs and (implicitly) scaling the second input during composition, unlike the software overlay. The code has been separated into common interface and qsv overlay implementation. The common part mainly creates the qsv session and manages the surface which is nearly the same for all qsv filters. So the qsvvpp.c/qsvvpp.h API can be used by other QSV vpp filters to reduce code redundancy. Usage: -hwaccel qsv -c:v mpeg2_qsv -r 25 -i in.m2v -hwaccel qsv -c:v h264_qsv -i in.h264 -filter_complex "overlay_qsv=eof_action=repeat:x=(W-w)/2:y=(H-h)/2" -b 2M -maxrate 3M -c:v h264_qsv -y out.h264 Two inputs should have different sizes otherwise one will be completely covered or you need to scale the second input as follows: -hwaccel qsv -c:v mpeg2_qsv -r 25 -i in.m2v -hwaccel qsv -c:v h264_qsv -i in.h264 -filter_complex "overlay_qsv=w=720:h=576:x=(W-w)/2:y=(H-h)/2" -b 2M -maxrate 3M -c:v h264_qsv -y out.h264 Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com> Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com> Signed-off-by: Andrew Zhang <huazh407@gmail.com> Change-Id: I5c381febb0af6e2f9622c54ba00490ab99d48297 Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>	7 years ago

Author

SHA1

Message

Date

Maxym Dmytrychenko

cca5e4f040

qsv: adding Multi Frame Encode support

Starting from API 1.25 helps to improve performance of the simultaneous
encode, 1:N scenario, like:

./avconv  -y -hwaccel qsv -c:v h264_qsv -r 30000/1001 -i
~/bbb_sunflower_1080p_60fps_normal.mp4  -vframes 600 -an \
    -filter_complex "split=2[s1][s2]; [s1]scale_qsv=1280:720[o1];
[s2]scale_qsv=960:540[o2]" \
    -map [o1] -c:v h264_qsv -b:v 3200k -minrate 3200k -maxrate 3200k -f
rawvideo /tmp/3200a.264 \
    -map [o2] -c:v h264_qsv -b:v 1750k -minrate 1750k -maxrate 1750k -f
rawvideo /tmp/1750a.264

Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>

7 years ago

Luca Barbato

ea25ccd1b2

qsv: Join the derived session to the parent

Should improve the performance on multiple transcoding from a single
source.

7 years ago

Huang, Zhengxu

a5a6ac1a12

libavfilter/overlay_qsv: Add QSV overlay vpp filter

The filter supports two inputs and (implicitly) scaling the second input
during composition, unlike the software overlay.

The code has been separated into common interface and qsv overlay
implementation. The common part mainly creates the qsv session and
manages the surface which is nearly the same for all qsv filters.
So the qsvvpp.c/qsvvpp.h API can be used by other QSV vpp filters
to reduce code redundancy.

Usage:
 -hwaccel qsv -c:v mpeg2_qsv -r 25 -i in.m2v -hwaccel qsv -c:v h264_qsv
 -i in.h264 -filter_complex
 "overlay_qsv=eof_action=repeat:x=(W-w)/2:y=(H-h)/2"  -b 2M -maxrate 3M
 -c:v h264_qsv -y out.h264

Two inputs should have different sizes otherwise one will be completely
covered or you need to scale the second input as follows:
  -hwaccel qsv -c:v mpeg2_qsv -r 25 -i in.m2v -hwaccel qsv -c:v h264_qsv
  -i in.h264 -filter_complex
  "overlay_qsv=w=720:h=576:x=(W-w)/2:y=(H-h)/2" -b 2M -maxrate 3M -c:v
  h264_qsv -y out.h264

  Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
  Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com>
  Signed-off-by: Andrew Zhang <huazh407@gmail.com>
  Change-Id: I5c381febb0af6e2f9622c54ba00490ab99d48297
  Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>

7 years ago

3 Commits (5d01bd181bb77e6740462095d7be4e0733a59420)