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a05006944a
We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
92 lines
3.4 KiB
C
92 lines
3.4 KiB
C
/* Gstreamer
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* Copyright (C) <2012> Edward Hervey <edward@collabora.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_MPEG_VIDEO_META_H__
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#define __GST_MPEG_VIDEO_META_H__
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#ifndef GST_USE_UNSTABLE_API
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#warning "The Mpeg video parsing library is unstable API and may change in future."
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#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
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#endif
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#include <gst/gst.h>
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#include <gst/codecparsers/gstmpegvideoparser.h>
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G_BEGIN_DECLS
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typedef struct _GstMpegVideoMeta GstMpegVideoMeta;
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GST_CODEC_PARSERS_API
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GType gst_mpeg_video_meta_api_get_type (void);
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#define GST_MPEG_VIDEO_META_API_TYPE (gst_mpeg_video_meta_api_get_type())
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#define GST_MPEG_VIDEO_META_INFO (gst_mpeg_video_meta_get_info())
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GST_CODEC_PARSERS_API
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const GstMetaInfo * gst_mpeg_video_meta_get_info (void);
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/**
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* GstMpegVideoMeta:
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* @meta: parent #GstMeta
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* @sequencehdr: the #GstMpegVideoSequenceHdr if present in the buffer
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* @sequenceext: the #GstMpegVideoSequenceExt if present in the buffer
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* @sequencedispext: the #GstMpegVideoSequenceDisplayExt if present in the
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* buffer.
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* @pichdr: the #GstMpegVideoPictureHdr if present in the buffer.
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* @picext: the #GstMpegVideoPictureExt if present in the buffer.
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* @quantext: the #GstMpegVideoQuantMatrixExt if present in the buffer
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*
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* Extra buffer metadata describing the contents of a MPEG1/2 Video frame
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*
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* Can be used by elements (mainly decoders) to avoid having to parse
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* Mpeg video 1/2 packets if it can be done upstream.
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*
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* The various fields are only valid during the lifetime of the #GstMpegVideoMeta.
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* If elements wish to use those for longer, they are required to make a copy.
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*
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* Since: 1.2
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*/
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struct _GstMpegVideoMeta {
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GstMeta meta;
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GstMpegVideoSequenceHdr *sequencehdr;
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GstMpegVideoSequenceExt *sequenceext;
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GstMpegVideoSequenceDisplayExt *sequencedispext;
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GstMpegVideoPictureHdr *pichdr;
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GstMpegVideoPictureExt *picext;
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GstMpegVideoQuantMatrixExt *quantext;
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guint num_slices;
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gsize slice_offset;
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};
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#define gst_buffer_get_mpeg_video_meta(b) ((GstMpegVideoMeta*)gst_buffer_get_meta((b),GST_MPEG_VIDEO_META_API_TYPE))
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GST_CODEC_PARSERS_API
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GstMpegVideoMeta *
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gst_buffer_add_mpeg_video_meta (GstBuffer * buffer,
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const GstMpegVideoSequenceHdr *seq_hdr,
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const GstMpegVideoSequenceExt *seq_ext,
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const GstMpegVideoSequenceDisplayExt *disp_ext,
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const GstMpegVideoPictureHdr *pic_hdr,
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const GstMpegVideoPictureExt *pic_ext,
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const GstMpegVideoQuantMatrixExt *quant_ext);
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G_END_DECLS
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#endif
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