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msdk: adds new utility functions for conversion from gstreamer to libmfx

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=790752
This commit is contained in:
Hyunjun Ko 2018-02-13 12:37:47 -09:00 committed by Sreerenj Balachandran
parent 8f0450dad4
commit b45147a6d4
2 changed files with 77 additions and 0 deletions
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71
sys/msdk/msdk.c
View file

@ -37,6 +37,26 @@ GST_DEBUG_CATEGORY_EXTERN (gst_msdkenc_debug);
#define INVALID_INDEX ((guint) -1)
#define GST_MSDK_ALIGNMENT_PADDING(num) (32 - ((num) & 31))
struct map
{
GstVideoFormat format;
mfxU16 mfx_chroma_format;
mfxU32 mfx_fourcc;
};
#define GST_VIDEO_INFO_TO_MFX_MAP(FORMAT, CHROMA, FOURCC) \
{ GST_VIDEO_FORMAT_##FORMAT, MFX_CHROMAFORMAT_##CHROMA, MFX_FOURCC_##FOURCC }
static const struct map gst_msdk_video_format_to_mfx_map[] = {
GST_VIDEO_INFO_TO_MFX_MAP (NV12, YUV420, NV12),
GST_VIDEO_INFO_TO_MFX_MAP (YV12, YUV420, YV12),
GST_VIDEO_INFO_TO_MFX_MAP (I420, YUV420, YV12),
GST_VIDEO_INFO_TO_MFX_MAP (YUY2, YUV422, YUY2),
GST_VIDEO_INFO_TO_MFX_MAP (UYVY, YUV422, UYVY),
GST_VIDEO_INFO_TO_MFX_MAP (BGRA, YUV444, RGB4),
{0, 0, 0}
};
static inline guint
msdk_get_free_surface_index (mfxFrameSurface1 * surfaces, guint size)
{
@ -382,3 +402,54 @@ gst_msdk_set_video_alignment (GstVideoInfo * info,
if (height & 31)
alignment->padding_bottom = GST_MSDK_ALIGNMENT_PADDING (height);
}
static const struct map *
_map_lookup_format (GstVideoFormat format)
{
const struct map *m = gst_msdk_video_format_to_mfx_map;
for (; m->format != 0; m++) {
if (m->format == format)
return m;
}
return NULL;
}
gint
gst_msdk_get_mfx_chroma_from_format (GstVideoFormat format)
{
const struct map *const m = _map_lookup_format (format);
return m ? m->mfx_chroma_format : -1;
}
gint
gst_msdk_get_mfx_fourcc_from_format (GstVideoFormat format)
{
const struct map *const m = _map_lookup_format (format);
return m ? m->mfx_fourcc : -1;
}
void
gst_msdk_set_mfx_frame_info_from_video_info (mfxFrameInfo * mfx_info,
GstVideoInfo * info)
{
g_return_if_fail (info && mfx_info);
mfx_info->Width = GST_ROUND_UP_32 (GST_VIDEO_INFO_WIDTH (info));
mfx_info->Height = GST_ROUND_UP_32 (GST_VIDEO_INFO_HEIGHT (info));
mfx_info->CropW = GST_VIDEO_INFO_WIDTH (info);
mfx_info->CropH = GST_VIDEO_INFO_HEIGHT (info);
mfx_info->FrameRateExtN = GST_VIDEO_INFO_FPS_N (info);
mfx_info->FrameRateExtD = GST_VIDEO_INFO_FPS_D (info);
mfx_info->AspectRatioW = GST_VIDEO_INFO_PAR_N (info);
mfx_info->AspectRatioH = GST_VIDEO_INFO_PAR_D (info);
mfx_info->PicStruct = MFX_PICSTRUCT_PROGRESSIVE; /* this is by default */
mfx_info->FourCC =
gst_msdk_get_mfx_fourcc_from_format (GST_VIDEO_INFO_FORMAT (info));
mfx_info->ChromaFormat =
gst_msdk_get_mfx_chroma_from_format (GST_VIDEO_INFO_FORMAT (info));
return;
}

6
sys/msdk/msdk.h
View file

@ -69,6 +69,12 @@ const gchar *msdk_status_to_string (mfxStatus status);
void gst_msdk_set_video_alignment (GstVideoInfo * info,
GstVideoAlignment * alignment);
/* Conversion from Gstreamer to libmfx */
gint gst_msdk_get_mfx_chroma_from_format (GstVideoFormat format);
gint gst_msdk_get_mfx_fourcc_from_format (GstVideoFormat format);
void gst_msdk_set_mfx_frame_info_from_video_info (mfxFrameInfo * mfx_info,
GstVideoInfo * info);
G_END_DECLS
#endif /* __MSDK_H__ */