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msdk: Add help functions to handle drm caps

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Co-authored-by: Mengkejiergeli Ba <mengkejiergeli.ba@intel.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5208>
This commit is contained in:
Yinhang Liu 2023-05-30 16:24:46 +08:00 committed by Mengkejiergeli Ba
parent bf4703e9a0
commit e668cf9305
2 changed files with 101 additions and 1 deletions
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90
subprojects/gst-plugins-bad/sys/msdk/gstmsdkcaps.c
View file

@ -30,9 +30,11 @@
*/
#include "gstmsdkcaps.h"
#ifndef _WIN32
#include <libdrm/drm_fourcc.h>
#include "gstmsdkallocator_libva.h"
#include <gst/va/gstvavideoformat.h>
#endif
#define DEFAULT_DELIMITER ", "
@ -1991,7 +1993,13 @@ gst_msdkcaps_set_strings (GstCaps * caps,
if (!s)
return FALSE;
gst_structure_set_value (s, field, &list);
/* When we use this function to get a fixated caps, we should set
* a single value instead of a list in the corresponding field.
*/
if (gst_value_list_get_size (&list) == 1)
gst_structure_set_value (s, field, gst_value_list_get_value (&list, 0));
else
gst_structure_set_value (s, field, &list);
} else {
gst_caps_set_value (caps, field, &list);
}
@ -2020,3 +2028,83 @@ gst_msdkcaps_remove_structure (GstCaps * caps, const gchar * features)
return TRUE;
}
gboolean
gst_msdkcaps_video_info_from_caps (const GstCaps * caps,
GstVideoInfo * info, guint64 * modifier)
{
g_return_val_if_fail (caps != NULL, FALSE);
g_return_val_if_fail (info != NULL, FALSE);
#ifndef _WIN32
if (gst_video_is_dma_drm_caps (caps)) {
GstVideoInfoDmaDrm *drm_info = gst_video_info_dma_drm_new_from_caps (caps);
if (!drm_info)
goto failed;
*info = drm_info->vinfo;
if (modifier)
*modifier = drm_info->drm_modifier;
gst_video_info_dma_drm_free (drm_info);
} else
#endif
if (!gst_video_info_from_caps (info, caps))
goto failed;
return TRUE;
failed:
GST_ERROR_OBJECT (caps, "Failed to get video info fom caps");
return FALSE;
}
#ifndef _WIN32
GstCaps *
gst_msdkcaps_video_info_to_drm_caps (GstVideoInfo * info, guint64 modifier)
{
GstVideoInfoDmaDrm drm_info;
gst_video_info_dma_drm_init (&drm_info);
drm_info.vinfo = *info;
drm_info.drm_fourcc =
gst_va_drm_fourcc_from_video_format (GST_VIDEO_INFO_FORMAT (info));
drm_info.drm_modifier = modifier;
return gst_video_info_dma_drm_to_caps (&drm_info);
}
guint64
get_msdkcaps_get_modifier (const GstCaps * caps)
{
guint64 modifier = DRM_FORMAT_MOD_INVALID;
guint size = gst_caps_get_size (caps);
for (guint i = 0; i < size; i++) {
GstCapsFeatures *f = gst_caps_get_features (caps, i);
if (gst_caps_features_contains (f, GST_CAPS_FEATURE_MEMORY_DMABUF)) {
GstStructure *s = gst_caps_get_structure (caps, i);
const GValue *drm_fmts = gst_structure_get_value (s, "drm-format");
const gchar *drm_str = NULL;
if (!drm_fmts)
continue;
if (G_VALUE_HOLDS_STRING (drm_fmts))
drm_str = g_value_get_string (drm_fmts);
else if (GST_VALUE_HOLDS_LIST (drm_fmts)) {
const GValue *val = gst_value_list_get_value (drm_fmts, 0);
drm_str = g_value_get_string (val);
}
gst_video_dma_drm_fourcc_from_string (drm_str, &modifier);
}
}
GST_DEBUG ("got modifier: 0x%016lx", modifier);
return modifier;
}
#endif

12
subprojects/gst-plugins-bad/sys/msdk/gstmsdkcaps.h
View file

@ -81,6 +81,18 @@ gst_msdkcaps_set_strings (GstCaps * caps,
gboolean
gst_msdkcaps_remove_structure (GstCaps * caps, const gchar * features);
gboolean
gst_msdkcaps_video_info_from_caps (const GstCaps * caps,
GstVideoInfo * info, guint64 * modifier);
#ifndef _WIN32
GstCaps *
gst_msdkcaps_video_info_to_drm_caps (GstVideoInfo * info, guint64 modifier);
guint64
get_msdkcaps_get_modifier (const GstCaps * caps);
#endif
G_END_DECLS
#endif /* __GST_MSDKCAPS_H__ */