Because I have this dual-gpu laptop with intel and radeon (r600)
decoding devices I tried to get second (mesa/r600) device going but
init failed .. I looked into decoding example:
https://gist.github.com/kajott/d1b29c613be30893c855621edd1f212e
and created attached patch
now you can select your specific device with env variable:
CIN_DRM_DEC=/dev/dri/renderD129 DRI_PRIME=1 LIBVA_DRIVER_NAME=r600 bin/cin
in theory same treatment can be applied (with different variable name)
to second instance of av_hwdevice_ctx_create (in hw encoder init) but
I have no device to test it ...
diff --git a/cinelerra-5.1/cinelerra/ffmpeg.C b/cinelerra-5.1/cinelerra/ffmpeg.C
index 4923eded..e89520bb 100644
--- a/cinelerra-5.1/cinelerra/ffmpeg.C
+++ b/cinelerra-5.1/cinelerra/ffmpeg.C
@@ -1160,7 +1160,14 @@ int FFVideoStream::decode_hw_format(AVCodec *decoder, AVHWDeviceType type)
if( hw_pix_fmt >= 0 ) {
hw_pixfmt = hw_pix_fmt;
avctx->get_format = get_hw_format;
+ const char *drm_node = getenv("CIN_DRM_DEC");
+ if(drm_node && type==AV_HWDEVICE_TYPE_VAAPI) {
+ ret = av_hwdevice_ctx_create(&hw_device_ctx, type, drm_node, 0, 0);
+ }
+ else {
ret = av_hwdevice_ctx_create(&hw_device_ctx, type, 0, 0, 0);
+ }
+
if( ret >= 0 ) {
avctx->hw_device_ctx = av_buffer_ref(hw_device_ctx);
ret = 1;
--
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