/* 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; /* per frame AU Delimiter check used when in_format == avc or avc3 */ gboolean have_aud_in_frame; /* tracing state whether h264parse needs to insert AUD or not. * Used when in_format == byte-stream */ gboolean aud_needed; /* For insertion of AU Delimiter */ gboolean aud_insert; 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; gboolean ignore_vui_fps; /* 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; GstVideoParseUserData user_data; GstVideoParseUserDataUnregistered user_data_unregistered; 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