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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.
*/
#ifndef __GST_MPEG_VIDEO_META_H__
#define __GST_MPEG_VIDEO_META_H__
#ifndef GST_USE_UNSTABLE_API
#warning "The Mpeg video parsing library is unstable API and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
#include <gst/gst.h>
#include <gst/codecparsers/gstmpegvideoparser.h>
G_BEGIN_DECLS
typedef struct _GstMpegVideoMeta GstMpegVideoMeta;
GST_CODEC_PARSERS_API
GType gst_mpeg_video_meta_api_get_type (void);
#define GST_MPEG_VIDEO_META_API_TYPE (gst_mpeg_video_meta_api_get_type())
#define GST_MPEG_VIDEO_META_INFO (gst_mpeg_video_meta_get_info())
GST_CODEC_PARSERS_API
const GstMetaInfo * gst_mpeg_video_meta_get_info (void);
/**
* GstMpegVideoMeta:
* @meta: parent #GstMeta
* @sequencehdr: the #GstMpegVideoSequenceHdr if present in the buffer
* @sequenceext: the #GstMpegVideoSequenceExt if present in the buffer
* @sequencedispext: the #GstMpegVideoSequenceDisplayExt if present in the
* buffer.
* @pichdr: the #GstMpegVideoPictureHdr if present in the buffer.
* @picext: the #GstMpegVideoPictureExt if present in the buffer.
* @quantext: the #GstMpegVideoQuantMatrixExt if present in the buffer
*
* Extra buffer metadata describing the contents of a MPEG1/2 Video frame
*
* Can be used by elements (mainly decoders) to avoid having to parse
* Mpeg video 1/2 packets if it can be done upstream.
*
* The various fields are only valid during the lifetime of the #GstMpegVideoMeta.
* If elements wish to use those for longer, they are required to make a copy.
*
* Since: 1.2
*/
struct _GstMpegVideoMeta {
GstMeta meta;
GstMpegVideoSequenceHdr *sequencehdr;
GstMpegVideoSequenceExt *sequenceext;
GstMpegVideoSequenceDisplayExt *sequencedispext;
GstMpegVideoPictureHdr *pichdr;
GstMpegVideoPictureExt *picext;
GstMpegVideoQuantMatrixExt *quantext;
guint num_slices;
gsize slice_offset;
};
#define gst_buffer_get_mpeg_video_meta(b) ((GstMpegVideoMeta*)gst_buffer_get_meta((b),GST_MPEG_VIDEO_META_API_TYPE))
GST_CODEC_PARSERS_API
GstMpegVideoMeta *
gst_buffer_add_mpeg_video_meta (GstBuffer * buffer,
const GstMpegVideoSequenceHdr *seq_hdr,
const GstMpegVideoSequenceExt *seq_ext,
const GstMpegVideoSequenceDisplayExt *disp_ext,
const GstMpegVideoPictureHdr *pic_hdr,
const GstMpegVideoPictureExt *pic_ext,
const GstMpegVideoQuantMatrixExt *quant_ext);
G_END_DECLS
#endif
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