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gst: support VideoCrop meta

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Convert the VideoCrop metadata to GStreamer metadata.
This commit is contained in:
Wim Taymans 2020-07-31 11:44:46 +02:00
parent 6fd373ac83
commit 5f40bc6d4e
4 changed files with 42 additions and 6 deletions
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19
src/gst/gstpipewiresrc.c
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@ -452,6 +452,7 @@ static GstBuffer *dequeue_buffer(GstPipeWireSrc *pwsrc)
GstBuffer *buf;
GstPipeWirePoolData *data;
struct spa_meta_header *h;
struct spa_meta_region *crop;
guint i;
b = pw_stream_dequeue_buffer (pwsrc->stream);
@ -482,6 +483,16 @@ static GstBuffer *dequeue_buffer(GstPipeWireSrc *pwsrc)
}
GST_BUFFER_OFFSET (buf) = h->seq;
}
crop = data->crop;
if (crop) {
GstVideoCropMeta *meta = gst_buffer_get_video_crop_meta(buf);
if (meta) {
meta->x = crop->region.position.x;
meta->y = crop->region.position.y;
meta->width = crop->region.size.width;
meta->height = crop->region.size.height;
}
}
for (i = 0; i < b->buffer->n_datas; i++) {
struct spa_data *d = &b->buffer->datas[i];
GstMemory *mem = gst_buffer_peek_memory (buf, i);
@ -753,7 +764,7 @@ on_param_changed (void *data, uint32_t id,
gst_caps_unref (caps);
if (res) {
const struct spa_pod *params[2];
const struct spa_pod *params[3];
struct spa_pod_builder b = { NULL };
uint8_t buffer[512];
uint32_t buffers = CLAMP (16, pwsrc->min_buffers, pwsrc->max_buffers);
@ -773,9 +784,13 @@ on_param_changed (void *data, uint32_t id,
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)));
params[2] = spa_pod_builder_add_object (&b,
SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
SPA_PARAM_META_type, SPA_POD_Id(SPA_META_VideoCrop),
SPA_PARAM_META_size, SPA_POD_Int(sizeof (struct spa_meta_region)));
GST_DEBUG_OBJECT (pwsrc, "doing finish format");
pw_stream_update_params (pwsrc->stream, params, 2);
pw_stream_update_params (pwsrc->stream, params, 3);
} else {
GST_WARNING_OBJECT (pwsrc, "finish format with error");
pw_stream_set_error (pwsrc->stream, -EINVAL, "unhandled format");