gstreamer/gst/videoparsers/mpegvideoparse.h

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2011-05-23 10:06:01 +00:00
/* GStreamer
* Copyright (C) <2007> Jan Schmidt <thaytan@mad.scientist.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_MPEGVIDEO_PARAMS_H__
#define __GST_MPEGVIDEO_PARAMS_H__
#include <gst/gst.h>
G_BEGIN_DECLS
/* Packet ID codes for different packet types we
* care about */
#define MPEG_PACKET_PICTURE 0x00
#define MPEG_PACKET_SLICE_MIN 0x01
#define MPEG_PACKET_SLICE_MAX 0xaf
#define MPEG_PACKET_SEQUENCE 0xb3
#define MPEG_PACKET_EXTENSION 0xb5
#define MPEG_PACKET_SEQUENCE_END 0xb7
#define MPEG_PACKET_GOP 0xb8
#define MPEG_PACKET_NONE 0xff
/* Extension codes we care about */
#define MPEG_PACKET_EXT_SEQUENCE 0x01
#define MPEG_PACKET_EXT_SEQUENCE_DISPLAY 0x02
#define MPEG_PACKET_EXT_QUANT_MATRIX 0x03
/* Flags indicating what type of packets are in this block, some are mutually
* exclusive though - ie, sequence packs are accumulated separately. GOP &
* Picture may occur together or separately */
#define MPEG_BLOCK_FLAG_SEQUENCE 0x01
#define MPEG_BLOCK_FLAG_PICTURE 0x02
#define MPEG_BLOCK_FLAG_GOP 0x04
#define MPEG_PICTURE_TYPE_I 0x01
#define MPEG_PICTURE_TYPE_P 0x02
#define MPEG_PICTURE_TYPE_B 0x03
#define MPEG_PICTURE_TYPE_D 0x04
typedef struct _MPEGVParams MPEGVParams;
struct _MPEGVParams
{
gint mpeg_version;
gint profile;
gint level;
gint width, height;
gint par_w, par_h;
gint fps_n, fps_d;
gint bitrate;
gboolean progressive;
};
GstFlowReturn gst_mpeg_video_params_parse_config (MPEGVParams * params,
const guint8 * data, guint size);
G_END_DECLS
#endif