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pipewire: Add metadata to note how the capture image was scaled

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This commit is contained in:
Sam Lantinga 2022-10-21 16:32:20 -07:00 • committed by Joshua Ashton
parent a316418c89
commit fbceed2ab5
2 changed files with 15 additions and 1 deletions
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12
src/pipewire.cpp
View file

@ -144,6 +144,11 @@ static void copy_buffer(struct pipewire_state *state, struct pipewire_buffer *bu
header->dts_offset = 0;
}
float *requested_size_scale = (float *) spa_buffer_find_meta_data(spa_buffer, SPA_META_requested_size_scale, sizeof(*requested_size_scale));
if (requested_size_scale != nullptr) {
*requested_size_scale = ((float)tex->width() / g_nOutputWidth);
}
struct spa_chunk *chunk = spa_buffer->datas[0].chunk;
chunk->flags = needs_reneg ? SPA_CHUNK_FLAG_CORRUPTED : 0;
@ -292,7 +297,12 @@ static void stream_handle_param_changed(void *data, uint32_t id, const struct sp
SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header),
SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header)));
const struct spa_pod *params[] = { buffers_param, meta_param };
const struct spa_pod *scale_param =
(const struct spa_pod *) spa_pod_builder_add_object(&builder,
SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
SPA_PARAM_META_type, SPA_POD_Id(SPA_META_requested_size_scale),
SPA_PARAM_META_size, SPA_POD_Int(sizeof(float)));
const struct spa_pod *params[] = { buffers_param, meta_param, scale_param };
ret = pw_stream_update_params(state->stream, params, sizeof(params) / sizeof(params[0]));
if (ret != 0) {

4
src/pipewire_requested_size.hpp
View file

@ -4,6 +4,10 @@ enum {
SPA_FORMAT_VIDEO_requested_size = 0x70000
};
enum {
SPA_META_requested_size_scale = 0x70000
};
static inline int
spa_format_video_raw_parse_with_requested_size(const struct spa_pod *format, struct spa_video_info_raw *info, spa_rectangle *requested_size)
{