Le 16/01/2018 à 17:42, wm4 a écrit :
On Tue, 16 Jan 2018 14:08:37 +0100 wm4 <[email protected]> wrote:D3D11 has rather fine grained per texture format capabilities for different uses that can be queried at runtime. Since we don't know at the time av_hwdevice_get_hwframe_constraints() is called what the user wants to do with this, we simply return all formats that have the most basic support. --- libavutil/hwcontext_d3d11va.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/libavutil/hwcontext_d3d11va.c b/libavutil/hwcontext_d3d11va.c index 2f97156a54..960883c9d8 100644 --- a/libavutil/hwcontext_d3d11va.c +++ b/libavutil/hwcontext_d3d11va.c @@ -120,6 +120,38 @@ static void d3d11va_frames_uninit(AVHWFramesContext *ctx) s->staging_texture = NULL; }+static int d3d11va_frames_get_constraints(AVHWDeviceContext *ctx,+ const void *hwconfig, + AVHWFramesConstraints *constraints) +{ + AVD3D11VADeviceContext *device_hwctx = ctx->hwctx; + int nb_sw_formats = 0; + HRESULT hr; + 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++) { + UINT format_support = 0; + hr = ID3D11Device_CheckFormatSupport(device_hwctx->device, supported_formats[i].d3d_format, &format_support); + if (SUCCEEDED(hr) && (format_support & D3D11_FORMAT_SUPPORT_TEXTURE2D))
If you want to check the format can be used by the decoder, you should at least check for
D3D11_FORMAT_SUPPORT_DECODER_OUTPUT
+ constraints->valid_sw_formats[nb_sw_formats++] = supported_formats[i].pix_fmt; + } + constraints->valid_sw_formats[nb_sw_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_D3D11; + constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE; + + return 0; +} + static void free_texture(void *opaque, uint8_t *data) { ID3D11Texture2D_Release((ID3D11Texture2D *)opaque); @@ -576,6 +608,7 @@ const HWContextType ff_hwcontext_type_d3d11va = { .device_create = d3d11va_device_create, .device_init = d3d11va_device_init, .device_uninit = d3d11va_device_uninit, + .frames_get_constraints = d3d11va_frames_get_constraints, .frames_init = d3d11va_frames_init, .frames_uninit = d3d11va_frames_uninit, .frames_get_buffer = d3d11va_get_buffer,Received a casual OK from atomnuker on IRC - pushed. _______________________________________________ ffmpeg-devel mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
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