mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-01-02 21:48:55 +00:00
Code Issues 1 Projects Releases Wiki Activity

libs: decoder: vp9: support 422/444 8bit/10bit chroma type.

Browse source 
According to the vp9 sepc, profile 1/3 support 422/440/444 chroma
type, so we need to add subsampling_x&subsampling_y to fix it.

Here is the relationship between chroma type and profile and
subsampling_x&subsampling_y according to vp9 spec:
------------------------------------------
Profile | Bit depth | Chroma subsampling |
------------------------------------------
 0      | 8         | 420                |
------------------------------------------
 1      | 8         | 422,440,444        |
------------------------------------------
 2      | 10, 12    | 420                |
------------------------------------------
 3      | 10, 12    | 422,440,444        |
------------------------------------------

-----------------------------------------------
Subsampling_x | Subsampling_y | Chroma format |
-----------------------------------------------
 0            | 0             | 444           |
-----------------------------------------------
 0            | 1             | 440           |
-----------------------------------------------
 1            | 0             | 422           |
-----------------------------------------------
 1            | 1             | 420           |
-----------------------------------------------
This commit is contained in:
Wangfei 2019-05-07 11:03:51 +08:00 committed by Víctor Manuel Jáquez Leal
parent d38f0bbb1d
commit a4e2db4c0b
1 changed files with 47 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

57
gst-libs/gst/vaapi/gstvaapidecoder_vp9.c
View file

@ -189,11 +189,55 @@ get_profile (guint profile_idc)
return profile;
}
static gboolean
get_chroma_type (GstVp9FrameHdr * frame_hdr, GstVp9Parser * parser,
GstVaapiContextInfo * info)
{
switch (frame_hdr->profile) {
case GST_VP9_PROFILE_0:
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
break;
case GST_VP9_PROFILE_1:
if (parser->subsampling_x == 1 && parser->subsampling_y == 0)
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV422;
else if (parser->subsampling_x == 0 && parser->subsampling_y == 0)
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV444;
else
return FALSE;
break;
case GST_VP9_PROFILE_2:
if (parser->bit_depth == 10)
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420_10BPP;
else
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420_12BPP;
break;
case GST_VP9_PROFILE_3:
if (parser->subsampling_x == 1 && parser->subsampling_y == 0) {
if (parser->bit_depth == 10)
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV422_10BPP;
else
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV422_12BPP;
} else if (parser->subsampling_x == 0 && parser->subsampling_y == 0) {
if (parser->bit_depth == 10)
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV444_10BPP;
else
info->chroma_type = GST_VAAPI_CHROMA_TYPE_YUV444_12BPP;
} else
return FALSE;
break;
default:
return FALSE;
break;
}
return TRUE;
}
static GstVaapiDecoderStatus
ensure_context (GstVaapiDecoderVp9 * decoder)
{
GstVaapiDecoderVp9Private *const priv = &decoder->priv;
GstVp9FrameHdr *frame_hdr = &priv->frame_hdr;
GstVp9Parser *parser = priv->parser;
GstVaapiProfile profile;
const GstVaapiEntrypoint entrypoint = GST_VAAPI_ENTRYPOINT_VLD;
gboolean reset_context = FALSE;
@ -220,19 +264,12 @@ ensure_context (GstVaapiDecoderVp9 * decoder)
info.profile = priv->profile;
info.entrypoint = entrypoint;
if (priv->parser->bit_depth == GST_VP9_BIT_DEPTH_8) {
info.chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
} else if (priv->parser->bit_depth == GST_VP9_BIT_DEPTH_10) {
info.chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420_10BPP;
} else {
GST_WARNING ("VP9 with depth %d, bigger than 10BPP not supported now",
priv->parser->bit_depth);
return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT;
}
info.width = priv->width;
info.height = priv->height;
info.ref_frames = 8;
if (!get_chroma_type (frame_hdr, parser, &info))
return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT;
reset_context =
gst_vaapi_decoder_ensure_context (GST_VAAPI_DECODER (decoder), &info);