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screencast: create pwr_update_stream_param

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This will let us notify pipewire that our buffer has changed and trigger a renegotiation cycle which will take care of reallocating the buffers
This commit is contained in:
columbarius 2021-05-26 02:10:45 +02:00 committed by Simon Ser
parent 50cb55ed1d
commit f2d08cc5b5
2 changed files with 17 additions and 0 deletions
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1
include/pipewire_screencast.h
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@ -6,6 +6,7 @@
#define XDPW_PWR_BUFFERS 1
#define XDPW_PWR_ALIGN 16
void pwr_update_stream_param(struct xdpw_screencast_instance *cast);
void xdpw_pwr_stream_create(struct xdpw_screencast_instance *cast);
void xdpw_pwr_stream_destroy(struct xdpw_screencast_instance *cast);
int xdpw_pwr_context_create(struct xdpw_state *state);

16
src/screencast/pipewire_screencast.c
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@ -169,6 +169,22 @@ static const struct pw_stream_events pwr_stream_events = {
.param_changed = pwr_handle_stream_param_changed,
};
void pwr_update_stream_param(struct xdpw_screencast_instance *cast) {
logprint(TRACE, "pipewire: stream update parameters");
struct pw_stream *stream = cast->stream;
uint8_t params_buffer[1024];
struct spa_pod_builder b =
SPA_POD_BUILDER_INIT(params_buffer, sizeof(params_buffer));
const struct spa_pod *params[1];
enum spa_video_format format = xdpw_format_pw_from_wl_shm(cast->simple_frame.format);
params[0] = build_format(&b, format,
cast->simple_frame.width, cast->simple_frame.height, cast->framerate);
pw_stream_update_params(stream, params, 1);
}
void xdpw_pwr_stream_create(struct xdpw_screencast_instance *cast) {
struct xdpw_screencast_context *ctx = cast->ctx;
struct xdpw_state *state = ctx->state;