jketreno/intel-media-ffmpeg
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Updated to set multi-card config

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Signed-off-by: James P. Ketrenos <james.p.ketrenos@intel.com>
This commit is contained in:
James P. Ketrenos 2019-09-17 15:53:35 -07:00
parent d68b3d435c
commit 493bb26732
1 changed files with 28 additions and 7 deletions
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README.md
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@ -32,21 +32,38 @@ wget https://fate-suite.libav.org/h264-conformance/AUD_MW_E.264
cd ..
```
**NOTE:** In each of the following, if you have a multi-card host system
you may need to change the qsv_device used by changing QSV_DEVICE
to whichever node is connected to your hardware.
You can find out the paths via:
```
ls -l /dev/dri/by-path/pci-*$(lspci | grep Intel.*Graphics | cut -d " " -f1)*
```
On my system, my Intel graphics adapter is /dev/dri/renderD129, so I use:
```
export QSV_DEVICE=/dev/dri/renderD129
```
## Decode
H264 video decode and save as raw file:
### Connect to container
```bash
QSV_DEVICE=${QSV_DEVICE:-/dev/dri/renderD128}
docker run \
--rm \
--device=/dev/dri \
--volume $(pwd)/media:/media \
-it \
intel-media-ffmpeg \
ffmpeg -hwaccel qsv -c:v h264_qsv -i /media/AUD_MW_E.264 \
-vf hwdownload,format=nv12 -pix_fmt yuv420p \
/media/AUD_MW.yuv
ffmpeg -hwaccel qsv -qsv_device ${QSV_DEVICE} \
-c:v h264_qsv -i /media/AUD_MW_E.264 \
-vf hwdownload,format=nv12 -pix_fmt yuv420p \
/media/AUD_MW.yuv
```
### Encode
@ -54,6 +71,7 @@ docker run \
Encode a 10 frames of 720p raw input as H264 with 5Mbps using VBR mode:
```bash
QSV_DEVICE=${QSV_DEVICE:-/dev/dri/renderD128}
docker run \
--rm \
--device=/dev/dri \
@ -73,27 +91,30 @@ docker run \
H264 decode && H265 encode with 5Mbps using VBR
```bash
QSV_DEVICE=${QSV_DEVICE:-/dev/dri/renderD128}
docker run \
--rm \
--device=/dev/dri \
--volume $(pwd)/media:/media \
-it \
intel-media-ffmpeg \
ffmpeg -hwaccel qsv -c:v h264_qsv -i /media/AUD_MW_E.264 \
-c:v hevc_qsv -b:v 5M AUD_MW_E.hevc
ffmpeg -hwaccel qsv -qsv_device ${QSV_DEVICE} \
-c:v h264_qsv -i /media/AUD_MW_E.264 \
-c:v hevc_qsv -b:v 5M AUD_MW_E.hevc
```
1:N transcoding
```bash
QSV_DEVICE=${QSV_DEVICE:-/dev/dri/renderD128}
docker run \
--rm \
--device=/dev/dri \
--volume $(pwd)/media:/media \
-it \
intel-media-ffmpeg \
ffmpeg -hwaccel qsv -c:v h264_qsv \
-i /media/AUD_MW_E.264 \
ffmpeg -hwaccel qsv -qsv_device ${QSV_DEVICE} \
-c:v h264_qsv -i /media/AUD_MW_E.264 \
-filter_complex "split=2[s1][s2]; \
[s1]scale_qsv=1280:720[o1]; \
[s2]vpp_qsv=framerate=60[o2]" \