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vaapidecode: add support for VideoAlignment bufferpool option.

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Always add VideoAlignment bufferpool option if the downstream element
expects its own pool to be used but does not offer it through a proper
propose_allocation() implementation for instance, and that the ALLOCATION
query does not expose the availability of the Video Meta API.

This fixes propagation of video buffer stride information to Firefox.
This commit is contained in:
Gwenole Beauchesne 2014-07-25 15:52:06 +02:00
parent 1d1be0ae76
commit cafb25c4d1
2 changed files with 35 additions and 0 deletions
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12
gst/vaapi/gstvaapidecode.c
View file

@ -516,6 +516,7 @@ gst_vaapidecode_decide_allocation(GstVideoDecoder *vdec, GstQuery *query)
guint size, min, max;
gboolean need_pool, update_pool;
gboolean has_video_meta = FALSE;
gboolean has_video_alignment = FALSE;
GstVideoCodecState *state;
#if GST_CHECK_VERSION(1,1,0) && USE_GLX
gboolean has_texture_upload_meta = FALSE;
@ -572,6 +573,11 @@ gst_vaapidecode_decide_allocation(GstVideoDecoder *vdec, GstQuery *query)
gst_query_parse_nth_allocation_pool(query, 0, &pool, &size, &min, &max);
size = MAX(size, vi.size);
update_pool = TRUE;
/* Check whether downstream element proposed a bufferpool but did
not provide a correct propose_allocation() implementation */
has_video_alignment = gst_buffer_pool_has_option(pool,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
}
else {
pool = NULL;
@ -609,6 +615,12 @@ gst_vaapidecode_decide_allocation(GstVideoDecoder *vdec, GstQuery *query)
#endif
gst_buffer_pool_set_config(pool, config);
}
else if (has_video_alignment) {
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_add_option(config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
gst_buffer_pool_set_config(pool, config);
}
if (update_pool)
gst_query_set_nth_allocation_pool(query, 0, pool, size, min, max);

23
gst/vaapi/gstvaapivideobufferpool.c
View file

@ -47,6 +47,7 @@ struct _GstVaapiVideoBufferPoolPrivate {
GstAllocator *allocator;
GstVaapiDisplay *display;
guint has_video_meta : 1;
guint has_video_alignment : 1;
guint has_texture_upload_meta : 1;
};
@ -101,6 +102,19 @@ gst_vaapi_video_buffer_pool_get_property(GObject *object, guint prop_id,
}
}
static void
fill_video_alignment(GstVaapiVideoBufferPool *pool, GstVideoAlignment *align)
{
GstVideoInfo * const vip =
&GST_VAAPI_VIDEO_ALLOCATOR_CAST(pool->priv->allocator)->image_info;
guint i;
gst_video_alignment_reset(align);
for (i = 0; i < GST_VIDEO_INFO_N_PLANES(vip); i++)
align->stride_align[i] =
(1U << g_bit_nth_lsf(GST_VIDEO_INFO_PLANE_STRIDE(vip, i), 0)) - 1;
}
static const gchar **
gst_vaapi_video_buffer_pool_get_options(GstBufferPool *pool)
{
@ -108,6 +122,7 @@ gst_vaapi_video_buffer_pool_get_options(GstBufferPool *pool)
GST_BUFFER_POOL_OPTION_VIDEO_META,
GST_BUFFER_POOL_OPTION_VAAPI_VIDEO_META,
GST_BUFFER_POOL_OPTION_VIDEO_GL_TEXTURE_UPLOAD_META,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT,
NULL,
};
return g_options;
@ -122,6 +137,7 @@ gst_vaapi_video_buffer_pool_set_config(GstBufferPool *pool,
GstCaps *caps = NULL;
GstVideoInfo * const cur_vip = &priv->video_info[priv->video_info_index];
GstVideoInfo * const new_vip = &priv->video_info[!priv->video_info_index];
GstVideoAlignment align;
GstAllocator *allocator;
gboolean changed_caps;
@ -152,6 +168,13 @@ gst_vaapi_video_buffer_pool_set_config(GstBufferPool *pool,
priv->has_video_meta = gst_buffer_pool_config_has_option(config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
priv->has_video_alignment = gst_buffer_pool_config_has_option(config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
if (priv->has_video_alignment) {
fill_video_alignment(GST_VAAPI_VIDEO_BUFFER_POOL(pool), &align);
gst_buffer_pool_config_set_video_alignment(config, &align);
}
priv->has_texture_upload_meta = gst_buffer_pool_config_has_option(config,
GST_BUFFER_POOL_OPTION_VIDEO_GL_TEXTURE_UPLOAD_META);