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/* GStreamer H.264 Parser
* Copyright (C) <2010> Collabora ltd
* Copyright (C) <2010> Nokia Corporation
* Copyright (C) <2011> Intel Corporation
*
* Copyright (C) <2010> Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
* Copyright (C) <2011> Thibault Saunier <thibault.saunier@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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_H264_PARSE_H__
#define __GST_H264_PARSE_H__
#include <gst/gst.h>
#include <gst/base/gstbaseparse.h>
#include <gst/codecparsers/gsth264parser.h>
#include <gst/video/video.h>
#include "gstvideoparseutils.h"
G_BEGIN_DECLS
typedef struct _H264Params H264Params;
#define GST_TYPE_H264_PARSE \
(gst_h264_parse_get_type())
#define GST_H264_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_H264_PARSE,GstH264Parse))
#define GST_H264_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_H264_PARSE,GstH264ParseClass))
#define GST_IS_H264_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_H264_PARSE))
#define GST_IS_H264_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_H264_PARSE))
GType gst_h264_parse_get_type (void);
typedef struct _GstH264Parse GstH264Parse;
typedef struct _GstH264ParseClass GstH264ParseClass;
struct _GstH264Parse
{
GstBaseParse baseparse;
/* stream */
gint width, height;
gint fps_num, fps_den;
gint upstream_par_n, upstream_par_d;
gint parsed_par_n, parsed_par_d;
gint parsed_fps_n, parsed_fps_d;
GstVideoColorimetry parsed_colorimetry;
/* current codec_data in output caps, if any */
GstBuffer *codec_data;
/* input codec_data, if any */
GstBuffer *codec_data_in;
guint nal_length_size;
gboolean packetized;
gboolean split_packetized;
gboolean transform;
/* state */
GstH264NalParser *nalparser;
guint state;
guint in_align;
guint align;
guint format;
gint current_off;
/* True if input format and alignment match negotiated output */
gboolean can_passthrough;
GstClockTime last_report;
gboolean push_codec;
/* The following variables have a meaning in context of "have
* SPS/PPS to push downstream", e.g. to update caps */
gboolean have_sps;
gboolean have_pps;
/* per frame sps/pps check for periodic push codec decision */
gboolean have_sps_in_frame;
gboolean have_pps_in_frame;
gboolean first_frame;
/* collected SPS and PPS NALUs */
GstBuffer *sps_nals[GST_H264_MAX_SPS_COUNT];
GstBuffer *pps_nals[GST_H264_MAX_PPS_COUNT];
/* collected SEI timestamps */
guint num_clock_timestamp;
GstH264PicTiming pic_timing_sei;
/* Infos we need to keep track of */
guint32 sei_cpb_removal_delay;
guint8 sei_pic_struct;
guint8 sei_pic_struct_pres_flag;
guint field_pic_flag;
/* cached timestamps */
/* (trying to) track upstream dts and interpolate */
GstClockTime dts;
/* dts at start of last buffering period */
GstClockTime ts_trn_nb;
gboolean do_ts;
gboolean discont;
gboolean marker;
/* frame parsing */
/*guint last_nal_pos;*/
/*guint next_sc_pos;*/
gint idr_pos, sei_pos;
gint pic_timing_sei_pos;
gint pic_timing_sei_size;
gboolean update_caps;
GstAdapter *frame_out;
gboolean keyframe;
gboolean predicted;
gboolean bidirectional;
gboolean header;
gboolean frame_start;
/* AU state */
gboolean picture_start;
/* props */
gint interval;
gboolean update_timecode;
GstClockTime pending_key_unit_ts;
GstEvent *force_key_unit_event;
/* Stereo / multiview info */
GstVideoMultiviewMode multiview_mode;
GstVideoMultiviewFlags multiview_flags;
gboolean first_in_bundle;
/* For insertion of AU Delimiter */
gboolean aud_needed;
gboolean aud_insert;
GstVideoParseUserData user_data;
GstVideoMasteringDisplayInfo mastering_display_info;
guint mastering_display_info_state;
GstVideoContentLightLevel content_light_level;
guint content_light_level_state;
/* For forward predicted trickmode */
gboolean discard_bidirectional;
};
struct _GstH264ParseClass
{
GstBaseParseClass parent_class;
};
G_END_DECLS
#endif
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