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theoradec: Correctly handle crop metadata and update for videodecoder API changes

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This commit is contained in:
Sebastian Dröge 2012-05-01 13:26:57 +02:00
parent 4e649b5bff
commit 7ff23514ee
1 changed files with 39 additions and 36 deletions
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67
ext/theora/gsttheoradec.c
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@ -563,7 +563,6 @@ theora_handle_image (GstTheoraDec * dec, th_ycbcr_buffer buf,
gint i, comp;
guint8 *dest, *src;
GstVideoFrame vframe;
GstVideoCropMeta *crop;
gint pic_width, pic_height;
gint offset_x, offset_y;
@ -598,14 +597,33 @@ theora_handle_image (GstTheoraDec * dec, th_ycbcr_buffer buf,
if (dec->info.pic_width != dec->info.frame_width ||
dec->info.pic_height != dec->info.frame_height ||
dec->info.pic_x != 0 || dec->info.pic_y != 0) {
crop = gst_buffer_add_video_crop_meta (frame->output_buffer);
GstVideoMeta *vmeta;
GstVideoCropMeta *cmeta;
vmeta = gst_buffer_get_video_meta (frame->output_buffer);
/* If the buffer pool didn't add the meta already
* we add it ourselves here */
if (!vmeta)
vmeta = gst_buffer_add_video_meta (frame->output_buffer,
GST_VIDEO_FRAME_FLAG_NONE,
dec->output_state->info.finfo->format,
dec->info.frame_width, dec->info.frame_height);
/* Just to be sure that the buffer pool doesn't do something
* completely weird and we would crash later
*/
g_assert (vmeta->format == dec->output_state->info.finfo->format);
g_assert (vmeta->width == dec->info.frame_width);
g_assert (vmeta->height == dec->info.frame_height);
cmeta = gst_buffer_add_video_crop_meta (frame->output_buffer);
/* we can do things slightly more efficient when we know that
* downstream understands clipping */
crop->x = dec->info.pic_x;
crop->y = dec->info.pic_y;
crop->width = dec->info.pic_width;
crop->height = dec->info.pic_height;
cmeta->x = dec->info.pic_x;
cmeta->y = dec->info.pic_y;
cmeta->width = dec->info.pic_width;
cmeta->height = dec->info.pic_height;
}
}
@ -800,62 +818,47 @@ theora_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
GstTheoraDec *dec = GST_THEORA_DEC (decoder);
GstVideoCodecState *state;
GstBufferPool *pool;
gboolean update;
guint size, min, max;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query))
return FALSE;
state = gst_video_decoder_get_output_state (decoder);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
/* adjust size */
size = MAX (size, state->info.size);
update = TRUE;
} else {
pool = NULL;
size = state->info.size;
min = max = 0;
update = FALSE;
}
/* no downstream pool, make our own */
if (pool == NULL) {
pool = gst_video_buffer_pool_new ();
}
dec->can_crop = FALSE;
config = gst_buffer_pool_get_config (pool);
if (gst_query_has_allocation_meta (query, GST_VIDEO_META_API_TYPE)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
dec->can_crop =
gst_query_has_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE);
}
if (dec->can_crop) {
GstVideoInfo info = state->info;
GstCaps *caps;
/* Calculate uncropped size */
gst_video_info_set_format (&info, info.finfo->format, dec->info.frame_width,
dec->info.frame_height);
size = MAX (size, info.size);
caps = gst_video_info_to_caps (&info);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_caps_unref (caps);
}
gst_buffer_pool_set_config (pool, config);
if (update)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
if (pool)
gst_object_unref (pool);
gst_video_codec_state_unref (state);
return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query);
return TRUE;
}
static void