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v4l2: Use video frame copy for raw video

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Use the video frame copy API for raw video frames so that we copy with the right
strides.
This commit is contained in:
Wim Taymans 2011-07-13 13:38:15 +02:00
parent e77d183a1e
commit 3aed125163
1 changed files with 18 additions and 4 deletions
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22
sys/v4l2/gstv4l2sink.c
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@ -721,6 +721,7 @@ gst_v4l2sink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
GstV4l2Sink *v4l2sink = GST_V4L2SINK (bsink);
GstBuffer *newbuf = NULL;
GstMetaV4l2 *meta;
GstV4l2Object *obj = v4l2sink->v4l2object;
GST_DEBUG_OBJECT (v4l2sink, "render buffer: %p", buf);
@ -734,12 +735,25 @@ gst_v4l2sink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
GST_DEBUG_OBJECT (v4l2sink, "slow-path.. need to memcpy");
newbuf = gst_v4l2_buffer_pool_get (v4l2sink->pool, TRUE);
data = gst_buffer_map (buf, &size, NULL, GST_MAP_READ);
gst_buffer_fill (newbuf, 0, data, size);
gst_buffer_unmap (buf, data, size);
if (obj->info.finfo) {
GstVideoFrame src_frame, dest_frame;
GST_DEBUG_OBJECT (v4l2sink, "copy video frame");
/* we have raw video, use videoframe copy to get strides right */
gst_video_frame_map (&src_frame, &obj->info, buf, GST_MAP_READ);
gst_video_frame_map (&dest_frame, &obj->info, newbuf, GST_MAP_WRITE);
gst_video_frame_copy (&dest_frame, &src_frame);
gst_video_frame_unmap (&src_frame);
gst_video_frame_unmap (&dest_frame);
} else {
GST_DEBUG_OBJECT (v4l2sink, "copy raw bytes");
data = gst_buffer_map (buf, &size, NULL, GST_MAP_READ);
gst_buffer_fill (newbuf, 0, data, size);
gst_buffer_unmap (buf, data, size);
}
GST_DEBUG_OBJECT (v4l2sink, "render copied buffer: %p", newbuf);
buf = newbuf;
}