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d3d11decoder: Add padding space on decoder output view when it's not aligned

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Most H/W decoders have required alignment and dxva is also the case.
This commit is contained in:
Seungha Yang 2020-02-20 16:19:09 +09:00
parent fe72bf6053
commit fbe7917a94
1 changed files with 27 additions and 3 deletions
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30
sys/d3d11/gstd3d11decoder.c
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@ -561,6 +561,8 @@ gst_d3d11_decoder_open (GstD3D11Decoder * decoder, GstD3D11Codec codec,
D3D11_VIDEO_DECODER_DESC decoder_desc = { 0, };
GUID selected_profile;
gint i;
guint aligned_width, aligned_height;
guint alignment;
g_return_val_if_fail (GST_IS_D3D11_DECODER (decoder), FALSE);
g_return_val_if_fail (codec > GST_D3D11_CODEC_NONE, FALSE);
@ -600,8 +602,30 @@ gst_d3d11_decoder_open (GstD3D11Decoder * decoder, GstD3D11Codec codec,
gst_d3d11_decoder_reset_unlocked (decoder);
decoder_desc.SampleWidth = coded_width;
decoder_desc.SampleHeight = coded_height;
/* NOTE: other dxva implementations (ffmpeg and vlc) do this
* and they say the required alignment were mentioned by dxva spec.
* See ff_dxva2_common_frame_params() in dxva.c of ffmpeg and
* directx_va_Setup() in directx_va.c of vlc.
* But... where it is? */
switch (codec) {
case GST_D3D11_CODEC_H265:
alignment = 128;
break;
default:
alignment = 16;
break;
}
aligned_width = GST_ROUND_UP_N (coded_width, alignment);
aligned_height = GST_ROUND_UP_N (coded_height, alignment);
if (aligned_width != coded_width || aligned_height != coded_height) {
GST_DEBUG_OBJECT (decoder,
"coded resolution %dx%d is not aligned to %d, adjust to %dx%d",
coded_width, coded_height, alignment, aligned_width, aligned_height);
}
decoder_desc.SampleWidth = aligned_width;
decoder_desc.SampleHeight = aligned_height;
decoder_desc.OutputFormat = d3d11_format->dxgi_format;
decoder_desc.Guid = selected_profile;
@ -646,7 +670,7 @@ gst_d3d11_decoder_open (GstD3D11Decoder * decoder, GstD3D11Codec codec,
}
if (!gst_d3d11_decoder_prepare_output_view_pool (decoder,
info, coded_width, coded_height, pool_size, &selected_profile)) {
info, aligned_width, aligned_height, pool_size, &selected_profile)) {
GST_ERROR_OBJECT (decoder, "Couldn't prepare output view pool");
goto error;
}