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/*
* GStreamer
* Copyright (C) 2012 Edward Hervey <edward@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "gsth264meta.h"
GST_DEBUG_CATEGORY (h264_meta_debug);
#define GST_CAT_DEFAULT h264_meta_debug
static gboolean
gst_h264_meta_init (GstH264Meta * h264_meta,
gpointer params, GstBuffer * buffer)
{
h264_meta->sps = NULL;
h264_meta->pps = NULL;
h264_meta->sei = NULL;
h264_meta->num_slices = 0;
memset (&h264_meta->slices, 0, GST_MAX_H264_SLICE * sizeof (GstH264SliceHdr));
memset (&h264_meta->slice_offsets, 0, GST_MAX_H264_SLICE * sizeof (gsize));
return TRUE;
}
static void
gst_h264_meta_free (GstH264Meta * h264_meta, GstBuffer * buffer)
{
GList *tmp;
if (h264_meta->sps) {
for (tmp = h264_meta->sps; tmp; tmp = tmp->next) {
GstH264SPS *sps = (GstH264SPS *) tmp->data;
g_slice_free (GstH264SPS, sps);
}
g_list_free (h264_meta->sps);
}
if (h264_meta->pps) {
for (tmp = h264_meta->pps; tmp; tmp = tmp->next) {
GstH264PPS *pps = (GstH264PPS *) tmp->data;
g_slice_free (GstH264PPS, pps);
}
g_list_free (h264_meta->pps);
}
if (h264_meta->sei) {
for (tmp = h264_meta->sei; tmp; tmp = tmp->next) {
GstH264SEIMessage *sei = (GstH264SEIMessage *) tmp->data;
g_slice_free (GstH264SEIMessage, sei);
}
g_list_free (h264_meta->sei);
}
}
GType
gst_h264_meta_api_get_type (void)
{
static volatile GType type;
static const gchar *tags[] = { "memory", NULL }; /* don't know what to set here */
if (g_once_init_enter (&type)) {
GType _type = gst_meta_api_type_register ("GstH264MetaAPI", tags);
GST_DEBUG_CATEGORY_INIT (h264_meta_debug, "h264meta", 0,
"H264 video GstMeta");
g_once_init_leave (&type, _type);
}
return type;
}
const GstMetaInfo *
gst_h264_meta_get_info (void)
{
static const GstMetaInfo *h264_meta_info = NULL;
if (h264_meta_info == NULL) {
h264_meta_info =
gst_meta_register (GST_H264_META_API_TYPE,
"GstH264Meta", sizeof (GstH264Meta),
(GstMetaInitFunction) gst_h264_meta_init,
(GstMetaFreeFunction) gst_h264_meta_free,
(GstMetaTransformFunction) NULL);
}
return h264_meta_info;
}
/**
* gst_buffer_add_h264_meta:
* @buffer: a #GstBuffer
*
* Creates and adds a #GstH264Meta to a @buffer.
*
* Provided structures must either be %NULL or GSlice-allocated.
*
* Returns: (transfer full): a newly created #GstH264Meta
*/
GstH264Meta *
gst_buffer_add_h264_meta (GstBuffer * buffer)
{
GstH264Meta *h264_meta;
h264_meta =
(GstH264Meta *) gst_buffer_add_meta (buffer, GST_H264_META_INFO, NULL);
g_assert (h264_meta);
return h264_meta;
}
void
gst_h264_meta_add_sps (GstH264Meta * meta, const GstH264SPS * sps)
{
GST_DEBUG ("Adding SPS %d", sps->id);
meta->sps = g_list_append (meta->sps, g_slice_dup (GstH264SPS, sps));
}
void
gst_h264_meta_add_pps (GstH264Meta * meta, const GstH264PPS * pps)
{
GST_DEBUG ("Adding PPS %d", pps->id);
meta->pps = g_list_append (meta->pps, g_slice_dup (GstH264PPS, pps));
}
void
gst_h264_meta_add_sei (GstH264Meta * meta, const GstH264SEIMessage * sei)
{
GST_DEBUG ("Adding SEI type %u", sei->payloadType);
meta->sei = g_list_append (meta->sei, g_slice_dup (GstH264SEIMessage, sei));
}
void
gst_h264_meta_add_slice (GstH264Meta * meta, const GstH264SliceHdr * slice,
gsize offset)
{
GST_DEBUG ("Adding slice, type:%d, first_mb_in_slice:%d, offset:%"
G_GSIZE_FORMAT, slice->type, slice->first_mb_in_slice, offset);
g_return_if_fail (meta->num_slices < 16);
meta->slice_offsets[meta->num_slices] = offset;
meta->slices[meta->num_slices] = *slice;
meta->num_slices++;
}
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