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screencast: add build_buffer function 

This function makes it easier to omit attributes like size or stride for
cases where they won't be well defined like muliplanar dmabufs
This commit is contained in:
columbarius 2021-08-08 03:31:49 +02:00
parent 0835d8287b
commit 88a8a9cb7e
1 changed files with 23 additions and 8 deletions
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31
src/screencast/pipewire_screencast.c
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@ -13,6 +13,27 @@
#include "xdpw.h"
#include "logger.h"
static struct spa_pod *build_buffer(struct spa_pod_builder *b, uint32_t blocks, uint32_t size,
uint32_t stride, uint32_t datatype) {
assert(blocks > 0);
assert(datatype > 0);
struct spa_pod_frame f[1];
spa_pod_builder_push_object(b, &f[0], SPA_TYPE_OBJECT_ParamBuffers, SPA_PARAM_Buffers);
spa_pod_builder_add(b, SPA_PARAM_BUFFERS_buffers,
SPA_POD_CHOICE_RANGE_Int(XDPW_PWR_BUFFERS, XDPW_PWR_BUFFERS_MIN, 32), 0);
spa_pod_builder_add(b, SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(blocks), 0);
if (size > 0) {
spa_pod_builder_add(b, SPA_PARAM_BUFFERS_size, SPA_POD_Int(size), 0);
}
if (stride > 0) {
spa_pod_builder_add(b, SPA_PARAM_BUFFERS_stride, SPA_POD_Int(stride), 0);
}
spa_pod_builder_add(b, SPA_PARAM_BUFFERS_align, SPA_POD_Int(XDPW_PWR_ALIGN), 0);
spa_pod_builder_add(b, SPA_PARAM_BUFFERS_dataType, SPA_POD_CHOICE_FLAGS_Int(datatype), 0);
return spa_pod_builder_pop(b, &f[0]);
}
static struct spa_pod *build_format(struct spa_pod_builder *b, enum spa_video_format format,
uint32_t width, uint32_t height, uint32_t framerate) {
struct spa_pod_frame f[1];
@ -110,14 +131,8 @@ static void pwr_handle_stream_param_changed(void *data, uint32_t id,
cast->framerate = (uint32_t)(cast->pwr_format.max_framerate.num / cast->pwr_format.max_framerate.denom);
params[0] = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamBuffers, SPA_PARAM_Buffers,
SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(XDPW_PWR_BUFFERS, XDPW_PWR_BUFFERS_MIN, 32),
SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1),
SPA_PARAM_BUFFERS_size, SPA_POD_Int(cast->screencopy_frame_info.size),
SPA_PARAM_BUFFERS_stride, SPA_POD_Int(cast->screencopy_frame_info.stride),
SPA_PARAM_BUFFERS_align, SPA_POD_Int(XDPW_PWR_ALIGN),
SPA_PARAM_BUFFERS_dataType,SPA_POD_CHOICE_FLAGS_Int(1<<SPA_DATA_MemFd));
params[0] = build_buffer(&b, 1, cast->screencopy_frame_info.size,
cast->screencopy_frame_info.stride, 1<<SPA_DATA_MemFd);
params[1] = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,