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va: caps: Add jpeg fields in coded caps.

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Given the supported rt formats in a profile/entrypoint config it's
possible to know the supported JPEG colorspace and subsampling. This
patch adds this information in coded caps to a safer autoplugging
after jpegparser.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1575>
This commit is contained in:
Víctor Manuel Jáquez Leal 2022-04-28 13:16:03 +02:00 committed by GStreamer Marge Bot
parent cc30854893
commit 5b28509564
1 changed files with 92 additions and 6 deletions
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98
subprojects/gst-plugins-bad/sys/va/gstvacaps.c
View file

@ -88,6 +88,17 @@ bail:
return NULL;
}
static inline void
_value_list_append_string (GValue * list, const gchar * str)
{
GValue item = G_VALUE_INIT;
g_value_init (&item, G_TYPE_STRING);
g_value_set_string (&item, str);
gst_value_list_append_value (list, &item);
g_value_unset (&item);
}
gboolean
gst_caps_set_format_array (GstCaps * caps, GArray * formats)
{
@ -114,8 +125,6 @@ gst_caps_set_format_array (GstCaps * caps, GArray * formats)
gst_value_list_init (&v_formats, formats->len);
for (i = 0; i < formats->len; i++) {
GValue item = G_VALUE_INIT;
fmt = g_array_index (formats, GstVideoFormat, i);
if (fmt == GST_VIDEO_FORMAT_UNKNOWN)
continue;
@ -123,10 +132,7 @@ gst_caps_set_format_array (GstCaps * caps, GArray * formats)
if (!format)
continue;
g_value_init (&item, G_TYPE_STRING);
g_value_set_string (&item, format);
gst_value_list_append_value (&v_formats, &item);
g_value_unset (&item);
_value_list_append_string (&v_formats, format);
}
} else {
return FALSE;
@ -258,6 +264,83 @@ gst_va_create_raw_caps (GstVaDisplay * display, VAProfile profile,
return caps;
}
static void
_add_jpeg_fields (GstCaps * caps, guint32 rt_formats)
{
guint i;
GValue colorspace = G_VALUE_INIT, sampling = G_VALUE_INIT;
gboolean rgb, gray, yuv;
rgb = gray = yuv = FALSE;
gst_value_list_init (&colorspace, 3);
gst_value_list_init (&sampling, 3);
for (i = 0; rt_formats && i < G_N_ELEMENTS (va_rt_format_list); i++) {
if (rt_formats & va_rt_format_list[i]) {
#define APPEND_YUV do { \
if (!yuv) { _value_list_append_string (&colorspace, "sYUV"); yuv = TRUE; } \
} while (0)
switch (va_rt_format_list[i]) {
case VA_RT_FORMAT_YUV420:
APPEND_YUV;
_value_list_append_string (&sampling, "YCbCr-4:2:0");
break;
case VA_RT_FORMAT_YUV422:
APPEND_YUV;
_value_list_append_string (&sampling, "YCbCr-4:2:2");
break;
case VA_RT_FORMAT_YUV444:
APPEND_YUV;
_value_list_append_string (&sampling, "YCbCr-4:4:4");
break;
case VA_RT_FORMAT_YUV411:
APPEND_YUV;
_value_list_append_string (&sampling, "YCbCr-4:1:1");
break;
case VA_RT_FORMAT_YUV400:
if (!gray) {
_value_list_append_string (&colorspace, "GRAY");
_value_list_append_string (&sampling, "GRAYSCALE");
gray = TRUE;
}
break;
case VA_RT_FORMAT_RGBP:
case VA_RT_FORMAT_RGB16:
case VA_RT_FORMAT_RGB32:
if (!rgb) {
_value_list_append_string (&colorspace, "sRGB");
_value_list_append_string (&sampling, "RGB");
_value_list_append_string (&sampling, "BGR");
rgb = TRUE;
}
break;
default:
break;
}
#undef APPEND_YUV
}
}
if (gst_value_list_get_size (&colorspace) == 1) {
gst_caps_set_value (caps, "colorspace",
gst_value_list_get_value (&colorspace, 0));
} else {
gst_caps_set_value (caps, "colorspace", &colorspace);
}
if (gst_value_list_get_size (&sampling) == 1) {
gst_caps_set_value (caps, "sampling",
gst_value_list_get_value (&sampling, 0));
} else {
gst_caps_set_value (caps, "sampling", &sampling);
}
g_value_unset (&colorspace);
g_value_unset (&sampling);
}
GstCaps *
gst_va_create_coded_caps (GstVaDisplay * display, VAProfile profile,
VAEntrypoint entrypoint, guint32 * rt_formats_ptr)
@ -313,6 +396,9 @@ gst_va_create_coded_caps (GstVaDisplay * display, VAProfile profile,
if (!caps)
return NULL;
if (rt_formats > 0 && gst_va_profile_codec (profile) == JPEG)
_add_jpeg_fields (caps, rt_formats);
if (max_width == -1 || max_height == -1)
return caps;