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hwcontext_cuda: implement frames_get_constraints 

Copied and modified from hwcontext_qsv.c.
This commit is contained in:
wm4 2017-01-16 16:43:13 +01:00
parent 2b20290061
commit c16fe1432d
1 changed files with 26 additions and 0 deletions
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26
libavutil/hwcontext_cuda.c
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@ -39,6 +39,31 @@ static const enum AVPixelFormat supported_formats[] = {
AV_PIX_FMT_P016,
};
static int cuda_frames_get_constraints(AVHWDeviceContext *ctx,
const void *hwconfig,
AVHWFramesConstraints *constraints)
{
int i;
constraints->valid_sw_formats = av_malloc_array(FF_ARRAY_ELEMS(supported_formats) + 1,
sizeof(*constraints->valid_sw_formats));
if (!constraints->valid_sw_formats)
return AVERROR(ENOMEM);
for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
constraints->valid_sw_formats[i] = supported_formats[i];
constraints->valid_sw_formats[FF_ARRAY_ELEMS(supported_formats)] = AV_PIX_FMT_NONE;
constraints->valid_hw_formats = av_malloc_array(2, sizeof(*constraints->valid_hw_formats));
if (!constraints->valid_hw_formats)
return AVERROR(ENOMEM);
constraints->valid_hw_formats[0] = AV_PIX_FMT_CUDA;
constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
return 0;
}
static void cuda_buffer_free(void *opaque, uint8_t *data)
{
AVHWFramesContext *ctx = opaque;
@ -376,6 +401,7 @@ const HWContextType ff_hwcontext_type_cuda = {
.device_create = cuda_device_create,
.device_init = cuda_device_init,
.device_uninit = cuda_device_uninit,
.frames_get_constraints = cuda_frames_get_constraints,
.frames_init = cuda_frames_init,
.frames_get_buffer = cuda_get_buffer,
.transfer_get_formats = cuda_transfer_get_formats,