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screen-cast-stream: Add push_format_object function

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This function is used to build EnumFormat spa_pods for format
negotiation and contains support for modifiers.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1939>
This commit is contained in:
columbarius 2021-11-13 16:34:34 +01:00 committed by Marge Bot
parent 3981cc8147
commit 72aae9d6ac
1 changed files with 71 additions and 16 deletions
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79
src/backends/meta-screen-cast-stream-src.c
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@ -34,6 +34,10 @@
#include <stdint.h>
#include <sys/mman.h>
#ifdef HAVE_NATIVE_BACKEND
#include <drm_fourcc.h>
#endif
#include "backends/meta-screen-cast-session.h"
#include "backends/meta-screen-cast-stream.h"
#include "clutter/clutter-mutter.h"
@ -105,6 +109,61 @@ typedef struct _MetaScreenCastStreamSrcPrivate
GHashTable *dmabuf_handles;
} MetaScreenCastStreamSrcPrivate;
static struct spa_pod *
push_format_object (struct spa_pod_builder *pod_builder,
enum spa_video_format format,
uint64_t *modifiers,
int n_modifiers,
...)
{
struct spa_pod_frame pod_frames[2];
va_list args;
spa_pod_builder_push_object (pod_builder, &pod_frames[0],
SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat);
spa_pod_builder_add (pod_builder,
SPA_FORMAT_mediaType,
SPA_POD_Id (SPA_MEDIA_TYPE_video),
0);
spa_pod_builder_add (pod_builder,
SPA_FORMAT_mediaSubtype,
SPA_POD_Id (SPA_MEDIA_SUBTYPE_raw),
0);
spa_pod_builder_add (pod_builder,
SPA_FORMAT_VIDEO_format, SPA_POD_Id (format),
0);
#ifdef HAVE_NATIVE_BACKEND
if (n_modifiers == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID)
{
spa_pod_builder_prop (pod_builder,
SPA_FORMAT_VIDEO_modifier,
SPA_POD_PROP_FLAG_MANDATORY);
spa_pod_builder_long (pod_builder, modifiers[0]);
}
else if (n_modifiers > 0)
{
int i;
spa_pod_builder_prop (pod_builder,
SPA_FORMAT_VIDEO_modifier,
(SPA_POD_PROP_FLAG_MANDATORY |
SPA_POD_PROP_FLAG_DONT_FIXATE));
spa_pod_builder_push_choice (pod_builder, &pod_frames[1],
SPA_CHOICE_Enum,
0);
spa_pod_builder_long (pod_builder, modifiers[0]);
for (i = 0; i < n_modifiers; i++)
spa_pod_builder_long (pod_builder, modifiers[i]);
spa_pod_builder_pop (pod_builder, &pod_frames[1]);
}
#endif /* HAVE_NATIVE_BACKEND */
va_start (args, n_modifiers);
spa_pod_builder_addv (pod_builder, args);
va_end (args);
return spa_pod_builder_pop (pod_builder, &pod_frames[0]);
}
static void
meta_screen_cast_stream_src_init_initable_iface (GInitableIface *iface);
@ -929,28 +988,23 @@ create_pipewire_stream (MetaScreenCastStreamSrc *src,
max_framerate = SPA_FRACTION (frame_rate_fraction.num,
frame_rate_fraction.denom);
params[0] = spa_pod_builder_add_object (
params[0] = push_format_object (
&pod_builder,
SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
SPA_FORMAT_mediaType, SPA_POD_Id (SPA_MEDIA_TYPE_video),
SPA_FORMAT_mediaSubtype, SPA_POD_Id (SPA_MEDIA_SUBTYPE_raw),
SPA_FORMAT_VIDEO_format, SPA_POD_Id (SPA_VIDEO_FORMAT_BGRx),
SPA_VIDEO_FORMAT_BGRx, NULL, 0,
SPA_FORMAT_VIDEO_size, SPA_POD_Rectangle (&SPA_RECTANGLE (width,
height)),
SPA_FORMAT_VIDEO_framerate, SPA_POD_Fraction (&SPA_FRACTION (0, 1)),
SPA_FORMAT_VIDEO_maxFramerate,
SPA_POD_CHOICE_RANGE_Fraction (&max_framerate,
&min_framerate,
&max_framerate));
&max_framerate),
0);
}
else
{
params[0] = spa_pod_builder_add_object (
params[0] = push_format_object (
&pod_builder,
SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
SPA_FORMAT_mediaType, SPA_POD_Id (SPA_MEDIA_TYPE_video),
SPA_FORMAT_mediaSubtype, SPA_POD_Id (SPA_MEDIA_SUBTYPE_raw),
SPA_FORMAT_VIDEO_format, SPA_POD_Id (SPA_VIDEO_FORMAT_BGRx),
SPA_VIDEO_FORMAT_BGRx, NULL, 0,
SPA_FORMAT_VIDEO_size, SPA_POD_CHOICE_RANGE_Rectangle (&DEFAULT_SIZE,
&MIN_SIZE,
&MAX_SIZE),
@ -958,7 +1012,8 @@ create_pipewire_stream (MetaScreenCastStreamSrc *src,
SPA_FORMAT_VIDEO_maxFramerate,
SPA_POD_CHOICE_RANGE_Fraction (&DEFAULT_FRAME_RATE,
&MIN_FRAME_RATE,
&MAX_FRAME_RATE));
&MAX_FRAME_RATE),
0);
}
pw_stream_add_listener (pipewire_stream,