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gst: correct buffer & meta offset calculation

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The offset in GstVideoMeta point to location of merge-mapped buffer memories (see "gst_buffer_find_memory()") instead of raw memory location for each plane, make adjustment to comply this rule.

Also some cleanups.

Fixes 023577e391
This commit is contained in:
Huang-Huang Bao 2023-02-03 19:45:50 +08:00 • committed by Wim Taymans
parent 4f9f32084c
commit 4b60569c4a
2 changed files with 11 additions and 5 deletions
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9
src/gst/gstpipewiresrc.c
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@ -616,6 +616,7 @@ static GstBuffer *dequeue_buffer(GstPipeWireSrc *pwsrc)
}
if (pwsrc->is_video) {
gsize video_size = 0;
GstVideoInfo *info = &pwsrc->video_info;
GstVideoMeta *meta = gst_buffer_add_video_meta_full (buf, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_INFO_FORMAT (info),
@ -625,11 +626,13 @@ static GstBuffer *dequeue_buffer(GstPipeWireSrc *pwsrc)
info->offset,
info->stride);
meta->n_planes = b->buffer->n_datas;
for (i = 0; i < b->buffer->n_datas; i++) {
meta->n_planes = MIN(meta->n_planes, b->buffer->n_datas);
for (i = 0; i < meta->n_planes; i++) {
struct spa_data *d = &b->buffer->datas[i];
meta->offset[i] = d->chunk->offset;
meta->offset[i] = video_size;
meta->stride[i] = d->chunk->stride;
video_size += d->chunk->size;
}
}