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Code Issues 1 Projects Releases Wiki Activity

msdkdec: Enable SFC csc for AVC and HEVC

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Decoder SFC will be triggered when default output format is not accept at
downstream. One use case below can work without using msdkvpp:
"! msdkh265dec ! "video/x-raw,format=BGRA" ! glimagesink",

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1444>
This commit is contained in:
Mengkejiergeli Ba 2021-12-15 11:49:40 +08:00 committed by GStreamer Marge Bot
parent eb742c8ed0
commit c5f0e075e2
3 changed files with 46 additions and 1 deletions
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36
subprojects/gst-plugins-bad/sys/msdk/gstmsdkdec.c
View file

@ -581,10 +581,15 @@ gst_msdkdec_set_src_caps (GstMsdkDec * thiz, gboolean need_allocation)
GstVideoInfo *vinfo;
GstVideoAlignment align;
GstCaps *allocation_caps = NULL;
GstCaps *allowed_caps, *temp_caps;
GstVideoFormat format;
guint width, height;
guint alloc_w, alloc_h;
const gchar *format_str;
GstStructure *outs;
const gchar *out_format;
GValue v_format = G_VALUE_INIT;
/* use display width and display height in output state, which
* will be used for caps negotiation */
@ -603,6 +608,37 @@ gst_msdkdec_set_src_caps (GstMsdkDec * thiz, gboolean need_allocation)
GST_WARNING_OBJECT (thiz, "Failed to find a valid video format");
return FALSE;
}
#if (MFX_VERSION >= 1022)
/* SFC is triggered (for AVC and HEVC) when default output format is not
* accepted by downstream.
* For SFC csc, need to do the query twice: the first time uses default
* color format to query peer pad, empty caps means default format is
* not accepted by downstream; then we need the second query to decide
* src caps color format and let SFC work. */
if (thiz->param.mfx.CodecId == MFX_CODEC_AVC ||
thiz->param.mfx.CodecId == MFX_CODEC_HEVC) {
temp_caps = gst_pad_query_caps (GST_VIDEO_DECODER (thiz)->srcpad, NULL);
temp_caps = gst_caps_make_writable (temp_caps);
g_value_init (&v_format, G_TYPE_STRING);
g_value_set_string (&v_format, gst_video_format_to_string (format));
gst_caps_set_value (temp_caps, "format", &v_format);
if (gst_caps_is_empty (gst_pad_peer_query_caps (GST_VIDEO_DECODER
(thiz)->srcpad, temp_caps))) {
allowed_caps =
gst_pad_get_allowed_caps (GST_VIDEO_DECODER (thiz)->srcpad);
outs = gst_caps_get_structure (allowed_caps, 0);
out_format = gst_structure_get_string (outs, "format");
if (out_format) {
format = gst_video_format_from_string (out_format);
thiz->sfc = TRUE;
}
gst_caps_unref (allowed_caps);
}
gst_caps_unref (temp_caps);
}
#endif
output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (thiz),

9
subprojects/gst-plugins-bad/sys/msdk/gstmsdkh264dec.c
View file

@ -54,6 +54,8 @@
GST_DEBUG_CATEGORY_EXTERN (gst_msdkh264dec_debug);
#define GST_CAT_DEFAULT gst_msdkh264dec_debug
#define COMMON_FORMAT "{ NV12, BGRA, BGRx }"
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
@ -63,6 +65,12 @@ static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
"profile = (string) { high, progressive-high, constrained-high, main, baseline, constrained-baseline }")
);
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_MSDK_CAPS_STR (COMMON_FORMAT, COMMON_FORMAT))
);
#define gst_msdkh264dec_parent_class parent_class
G_DEFINE_TYPE (GstMsdkH264Dec, gst_msdkh264dec, GST_TYPE_MSDKDEC);
@ -181,6 +189,7 @@ gst_msdkh264dec_class_init (GstMsdkH264DecClass * klass)
#endif
gst_element_class_add_static_pad_template (element_class, &sink_factory);
gst_element_class_add_static_pad_template (element_class, &src_factory);
}
static void

2
subprojects/gst-plugins-bad/sys/msdk/gstmsdkh265dec.c
View file

@ -56,7 +56,7 @@ GST_DEBUG_CATEGORY_EXTERN (gst_msdkh265dec_debug);
#define GST_CAT_DEFAULT gst_msdkh265dec_debug
#define COMMON_FORMAT \
"{ NV12, P010_10LE, YUY2, Y210, VUYA, Y410, P012_LE, Y212_LE, Y412_LE }"
"{ NV12, P010_10LE, YUY2, Y210, VUYA, Y410, P012_LE, Y212_LE, Y412_LE, BGRA, BGRx }"
/* TODO: update both sink and src dynamically */
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",