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glupload: add a helper function to convert gst formats into drm formats

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Co-authored-by: Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3524>
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He Junyan 2023-05-19 16:25:28 +08:00 committed by GStreamer Marge Bot
parent 22bb3107d7
commit 6dd3d6f1c1
1 changed files with 99 additions and 0 deletions
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99
subprojects/gst-plugins-base/gst-libs/gst/gl/gstglupload.c
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@ -38,6 +38,7 @@
#if GST_GL_HAVE_DMABUF
#include <gst/allocators/gstdmabuf.h>
#include <libdrm/drm_fourcc.h>
#endif
#if GST_GL_HAVE_VIV_DIRECTVIV
@ -638,6 +639,104 @@ _dma_buf_upload_new (GstGLUpload * upload)
return dmabuf;
}
/* Append all drm format strings to drm_formats array. */
static void
_append_drm_formats_from_video_format (GstGLContext * context,
GstVideoFormat format, gboolean include_external, GPtrArray * drm_formats)
{
gint32 i, fourcc;
const GArray *dma_modifiers = NULL;
char *drm_format;
fourcc = gst_video_dma_drm_fourcc_from_format (format);
if (fourcc == DRM_FORMAT_INVALID)
return;
if (!gst_gl_context_egl_get_format_modifiers (context, fourcc,
&dma_modifiers))
return;
/* No modifier info, we just consider it as linear and external_only. */
if (!dma_modifiers) {
if (include_external) {
drm_format =
gst_video_dma_drm_fourcc_to_string (fourcc, DRM_FORMAT_MOD_LINEAR);
g_ptr_array_add (drm_formats, drm_format);
}
return;
}
for (i = 0; i < dma_modifiers->len; i++) {
GstGLDmaModifier *mod = &g_array_index (dma_modifiers, GstGLDmaModifier, i);
if (!mod->external_only || include_external) {
drm_format = gst_video_dma_drm_fourcc_to_string (fourcc, mod->modifier);
g_ptr_array_add (drm_formats, drm_format);
}
}
}
/* Given the video formats in src GValue, collecting all the according
drm formats to dst GValue. Return FALSE if no valid drm formats found. */
static gboolean
_dma_buf_transform_gst_formats_to_drm_formats (GstGLContext * context,
const GValue * video_value, gboolean include_external, GValue * drm_value)
{
GstVideoFormat gst_format;
GPtrArray *all_drm_formats = NULL;
guint i;
all_drm_formats = g_ptr_array_new ();
if (G_VALUE_HOLDS_STRING (video_value)) {
gst_format =
gst_video_format_from_string (g_value_get_string (video_value));
if (gst_format != GST_VIDEO_FORMAT_UNKNOWN) {
_append_drm_formats_from_video_format (context, gst_format,
include_external, all_drm_formats);
}
} else if (GST_VALUE_HOLDS_LIST (video_value)) {
guint num_values = gst_value_list_get_size (video_value);
for (i = 0; i < num_values; i++) {
const GValue *val = gst_value_list_get_value (video_value, i);
gst_format = gst_video_format_from_string (g_value_get_string (val));
if (gst_format == GST_VIDEO_FORMAT_UNKNOWN)
continue;
_append_drm_formats_from_video_format (context, gst_format,
include_external, all_drm_formats);
}
}
if (all_drm_formats->len == 0) {
g_ptr_array_unref (all_drm_formats);
return FALSE;
}
if (all_drm_formats->len == 1) {
g_value_init (drm_value, G_TYPE_STRING);
g_value_take_string (drm_value, g_ptr_array_index (all_drm_formats, 0));
} else {
GValue item = G_VALUE_INIT;
gst_value_list_init (drm_value, all_drm_formats->len);
for (i = 0; i < all_drm_formats->len; i++) {
g_value_init (&item, G_TYPE_STRING);
g_value_take_string (&item, g_ptr_array_index (all_drm_formats, i));
gst_value_list_append_value (drm_value, &item);
g_value_unset (&item);
}
}
/* The strings are already token by the GValue, no need to free. */
g_ptr_array_unref (all_drm_formats);
return TRUE;
}
static GstCaps *
_dma_buf_upload_transform_caps (gpointer impl, GstGLContext * context,
GstPadDirection direction, GstCaps * caps)