This is a newer API that is intended for decoders like the cuvid
wrapper. Until now, the wrapper required to set an awkward
"incomplete" hw_frames_ctx to set the device. Now the device
can be set directly, and the user can get AV_PIX_FMT_CUDA output
for a specific device simply by setting hw_device_ctx.
This still does a dummy ff_get_format() call at init time, and should
be fully backward compatible.
API changes, most recent first:
+2017-05-05 - xxxxxxxxxx - lavc 57.94.100 - avcodec.h
+ The cuvid decoders now support AVCodecContext.hw_device_ctx, which removes
+ the requirement to set an incomplete AVCodecContext.hw_frames_ctx only to
+ set the Cuda device handle.
+
2017-04-11 - 8378466507 - lavu 55.61.100 - avstring.h
Add av_strireplace().
goto error;
}
} else {
- ret = av_hwdevice_ctx_create(&ctx->hwdevice, AV_HWDEVICE_TYPE_CUDA, ctx->cu_gpu, NULL, 0);
- if (ret < 0)
- goto error;
+ if (avctx->hw_device_ctx) {
+ ctx->hwdevice = av_buffer_ref(avctx->hw_device_ctx);
+ if (!ctx->hwdevice) {
+ ret = AVERROR(ENOMEM);
+ goto error;
+ }
+ } else {
+ ret = av_hwdevice_ctx_create(&ctx->hwdevice, AV_HWDEVICE_TYPE_CUDA, ctx->cu_gpu, NULL, 0);
+ if (ret < 0)
+ goto error;
+ }
ctx->hwframe = av_hwframe_ctx_alloc(ctx->hwdevice);
if (!ctx->hwframe) {
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 57
-#define LIBAVCODEC_VERSION_MINOR 93
+#define LIBAVCODEC_VERSION_MINOR 94
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \