mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-08-02 19:55:08 +00:00
148 lines
3.8 KiB
C
148 lines
3.8 KiB
C
/* GStreamer h264 parser
|
|
* Copyright (C) 2005 Michal Benes <michal.benes@itonis.tv>
|
|
*
|
|
* gsth264parse.h:
|
|
*
|
|
* 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_H264_PARSE_H__
|
|
#define __GST_H264_PARSE_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstadapter.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_H264PARSE \
|
|
(gst_h264_parse_get_type())
|
|
#define GST_H264PARSE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_H264PARSE,GstH264Parse))
|
|
#define GST_H264PARSE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_H264PARSE,GstH264ParseClass))
|
|
#define GST_IS_H264PARSE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_H264PARSE))
|
|
#define GST_IS_H264PARSE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_H264PARSE))
|
|
|
|
typedef struct _GstH264Parse GstH264Parse;
|
|
typedef struct _GstH264ParseClass GstH264ParseClass;
|
|
|
|
typedef struct _GstNalList GstNalList;
|
|
|
|
typedef struct _GstH264Sps GstH264Sps;
|
|
typedef struct _GstH264Pps GstH264Pps;
|
|
|
|
#define MAX_SPS_COUNT 32
|
|
#define MAX_PPS_COUNT 32
|
|
|
|
#define CLOCK_BASE 9LL
|
|
#define CLOCK_FREQ (CLOCK_BASE * 10000)
|
|
|
|
#define MPEGTIME_TO_GSTTIME(time) (gst_util_uint64_scale ((time), \
|
|
GST_MSECOND/10, CLOCK_BASE))
|
|
#define GSTTIME_TO_MPEGTIME(time) (gst_util_uint64_scale ((time), \
|
|
CLOCK_BASE, GST_MSECOND/10))
|
|
|
|
struct _GstH264Parse
|
|
{
|
|
GstElement element;
|
|
|
|
GstPad *sinkpad;
|
|
GstPad *srcpad;
|
|
|
|
gboolean split_packetized;
|
|
gboolean merge;
|
|
guint nal_length_size;
|
|
guint format;
|
|
|
|
GstSegment segment;
|
|
gboolean packetized;
|
|
gboolean discont;
|
|
|
|
gint width, height;
|
|
gint fps_num, fps_den;
|
|
|
|
/* gather/decode queues for reverse playback */
|
|
GList *gather;
|
|
GstBuffer *prev;
|
|
GstNalList *decode;
|
|
gint decode_len;
|
|
gboolean have_sps;
|
|
gboolean have_pps;
|
|
gboolean have_i_frame;
|
|
|
|
GstAdapter *adapter;
|
|
|
|
/* SPS: sequential parameter set */
|
|
GstH264Sps *sps_buffers[MAX_SPS_COUNT];
|
|
GstH264Sps *sps; /* Current SPS */
|
|
/* PPS: sequential parameter set */
|
|
GstH264Pps *pps_buffers[MAX_PPS_COUNT];
|
|
GstH264Pps *pps; /* Current PPS */
|
|
|
|
/* slice header */
|
|
guint8 first_mb_in_slice;
|
|
guint8 slice_type;
|
|
guint8 pps_id;
|
|
guint32 frame_num;
|
|
gboolean field_pic_flag;
|
|
gboolean bottom_field_flag;
|
|
|
|
/* SEI: supplemental enhancement messages */
|
|
/* buffering period */
|
|
guint32 initial_cpb_removal_delay[32];
|
|
/* picture timing */
|
|
guint32 sei_cpb_removal_delay;
|
|
guint32 sei_dpb_output_delay;
|
|
guint8 sei_pic_struct;
|
|
guint8 sei_ct_type;
|
|
/* And more... */
|
|
|
|
/* cached timestamps */
|
|
GstClockTime dts;
|
|
GstClockTime last_outbuf_dts;
|
|
GstClockTime ts_trn_nb; /* dts of last buffering period */
|
|
GstClockTime cur_duration; /* duration of the current access unit */
|
|
|
|
/* for debug purpose */
|
|
guint32 frame_cnt;
|
|
|
|
/* NALU AU */
|
|
GstAdapter *picture_adapter;
|
|
gboolean picture_start;
|
|
|
|
/* codec data NALUs to be inserted into stream */
|
|
GSList *codec_nals;
|
|
/* SPS and PPS NALUs collected from stream to form codec_data in caps */
|
|
GstBuffer *sps_nals[MAX_SPS_COUNT];
|
|
GstBuffer *pps_nals[MAX_PPS_COUNT];
|
|
|
|
GstCaps *src_caps;
|
|
};
|
|
|
|
struct _GstH264ParseClass
|
|
{
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
GType gst_h264_parse_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_H264_PARSE_H__ */
|