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screencast: introduce build_formats 

We build EnumFormats from our supported format multiple times. This
commit just creates a function to do that. This makes it easier to
handle the announcement of multiple buffer types.
This commit is contained in:
columbarius 2021-11-03 22:21:53 +01:00
parent ba0f40e45c
commit 0835d8287b
1 changed files with 14 additions and 10 deletions
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24
src/screencast/pipewire_screencast.c
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@ -44,6 +44,15 @@ static struct spa_pod *build_format(struct spa_pod_builder *b, enum spa_video_fo
return spa_pod_builder_pop(b, &f[0]);
}
static uint32_t build_formats(struct spa_pod_builder *b, struct xdpw_screencast_instance *cast,
const struct spa_pod *params[static 1]) {
uint32_t param_count = 1;
params[0] = build_format(b, xdpw_format_pw_from_drm_fourcc(cast->screencopy_frame_info.format),
cast->screencopy_frame_info.width, cast->screencopy_frame_info.height, cast->framerate);
return param_count;
}
static void pwr_handle_stream_on_process(void *data) {
logprint(TRACE, "pipewire: stream process");
struct xdpw_screencast_instance *cast = data;
@ -268,12 +277,9 @@ void pwr_update_stream_param(struct xdpw_screencast_instance *cast) {
SPA_POD_BUILDER_INIT(params_buffer, sizeof(params_buffer));
const struct spa_pod *params[1];
enum spa_video_format format = xdpw_format_pw_from_drm_fourcc(cast->screencopy_frame_info.format);
uint32_t n_params = build_formats(&b, cast, params);
params[0] = build_format(&b, format,
cast->screencopy_frame_info.width, cast->screencopy_frame_info.height, cast->framerate);
pw_stream_update_params(stream, params, 1);
pw_stream_update_params(stream, params, n_params);
}
void xdpw_pwr_stream_create(struct xdpw_screencast_instance *cast) {
@ -284,6 +290,7 @@ void xdpw_pwr_stream_create(struct xdpw_screencast_instance *cast) {
uint8_t buffer[1024];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
const struct spa_pod *params[1];
char name[] = "xdpw-stream-XXXXXX";
randname(name + strlen(name) - 6);
@ -298,10 +305,7 @@ void xdpw_pwr_stream_create(struct xdpw_screencast_instance *cast) {
}
cast->pwr_stream_state = false;
enum spa_video_format format = xdpw_format_pw_from_drm_fourcc(cast->screencopy_frame_info.format);
const struct spa_pod *param = build_format(&b, format,
cast->screencopy_frame_info.width, cast->screencopy_frame_info.height, cast->framerate);
uint32_t param_count = build_formats(&b, cast, params);
pw_stream_add_listener(cast->stream, &cast->stream_listener,
&pwr_stream_events, cast);
@ -311,7 +315,7 @@ void xdpw_pwr_stream_create(struct xdpw_screencast_instance *cast) {
PW_ID_ANY,
(PW_STREAM_FLAG_DRIVER |
PW_STREAM_FLAG_ALLOC_BUFFERS),
&param, 1);
params, param_count);
}
void xdpw_pwr_stream_destroy(struct xdpw_screencast_instance *cast) {