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xvimagepool: Update size, stride, and offset with allocated XvImage

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Memory layout of XvImage might be different from that of GstVideoInfo.
If so, the image size, stride, and offset would be wrongly informed.

Fixes: https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/issues/677
This commit is contained in:
Seungha Yang 2019-11-08 17:28:44 +09:00 committed by Sebastian Dröge
parent ce5e2f6917
commit b4e37d8a4b
2 changed files with 45 additions and 2 deletions
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40
sys/xvimage/xvimagepool.c
View file

@ -128,6 +128,39 @@ xvimage_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
xvpool->crop.w = xvpool->info.width;
xvpool->crop.h = xvpool->info.height;
/* update offset, stride and size with actual xvimage buffer */
if (xvpool->pre_alloc_mem)
gst_memory_unref (xvpool->pre_alloc_mem);
xvpool->pre_alloc_mem = gst_xvimage_allocator_alloc (xvpool->allocator,
xvpool->im_format, &info, xvpool->padded_width,
xvpool->padded_height, &xvpool->crop, NULL);
if (!xvpool->pre_alloc_mem) {
GST_ERROR_OBJECT (pool, "couldn't allocate image");
gst_structure_free (config);
return FALSE;
} else {
gint i;
XvImage *img;
img = gst_xvimage_memory_get_xvimage ((GstXvImageMemory *)
xvpool->pre_alloc_mem);
info.size = img->data_size;
for (i = 0; i < img->num_planes; i++) {
info.stride[i] = img->pitches[i];
info.offset[i] = img->offsets[i];
}
if (!gst_video_info_is_equal (&xvpool->info, &info) ||
xvpool->info.size != info.size) {
GST_WARNING_OBJECT (pool, "different size, stride and/or offset, update");
xvpool->info = info;
}
}
gst_buffer_pool_config_set_params (config, caps, info.size, min_buffers,
max_buffers);
@ -173,8 +206,13 @@ xvimage_buffer_pool_alloc (GstBufferPool * pool, GstBuffer ** buffer,
xvimage = gst_buffer_new ();
if (xvpool->pre_alloc_mem) {
mem = xvpool->pre_alloc_mem;
xvpool->pre_alloc_mem = NULL;
} else {
mem = gst_xvimage_allocator_alloc (xvpool->allocator, xvpool->im_format,
info, xvpool->padded_width, xvpool->padded_height, &xvpool->crop, &err);
}
if (mem == NULL) {
gst_buffer_unref (xvimage);
@ -247,6 +285,8 @@ gst_xvimage_buffer_pool_finalize (GObject * object)
GST_LOG_OBJECT (pool, "finalize XvImage buffer pool %p", pool);
if (pool->pre_alloc_mem)
gst_memory_unref (pool->pre_alloc_mem);
if (pool->caps)
gst_caps_unref (pool->caps);
if (pool->allocator)

3
sys/xvimage/xvimagepool.h
View file

@ -50,6 +50,9 @@ struct _GstXvImageBufferPool
guint padded_height;
gboolean add_metavideo;
gboolean need_alignment;
/* used for calculating actual size, stride, and offset */
GstMemory *pre_alloc_mem;
};
struct _GstXvImageBufferPoolClass