mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-18 06:16:36 +00:00
151 lines
4.1 KiB
C
151 lines
4.1 KiB
C
/* GStreamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
*
|
|
* 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 __MP3PARSE_H__
|
|
#define __MP3PARSE_H__
|
|
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstadapter.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_MP3PARSE \
|
|
(gst_mp3parse_get_type())
|
|
#define GST_MP3PARSE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MP3PARSE,GstMPEGAudioParse))
|
|
#define GST_MP3PARSE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MP3PARSE,GstMPEGAudioParseClass))
|
|
#define GST_IS_MP3PARSE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MP3PARSE))
|
|
#define GST_IS_MP3PARSE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MP3PARSE))
|
|
|
|
typedef struct _GstMPEGAudioParse GstMPEGAudioParse;
|
|
typedef struct _GstMPEGAudioParseClass GstMPEGAudioParseClass;
|
|
typedef struct _MPEGAudioSeekEntry MPEGAudioSeekEntry;
|
|
typedef struct _MPEGAudioPendingAccurateSeek MPEGAudioPendingAccurateSeek;
|
|
|
|
|
|
struct _MPEGAudioSeekEntry {
|
|
gint64 byte;
|
|
GstClockTime timestamp;
|
|
};
|
|
|
|
struct _MPEGAudioPendingAccurateSeek {
|
|
GstSegment segment;
|
|
gint64 upstream_start;
|
|
GstClockTime timestamp_start;
|
|
};
|
|
|
|
struct _GstMPEGAudioParse {
|
|
GstElement element;
|
|
|
|
GstPad *sinkpad, *srcpad;
|
|
|
|
GstSegment segment;
|
|
GstClockTime next_ts;
|
|
gboolean discont;
|
|
|
|
/* Offset as supplied by incoming buffers */
|
|
gint64 cur_offset;
|
|
|
|
/* Upcoming timestamp given on an incoming buffer and
|
|
* the offset at which it becomes active */
|
|
GstClockTime pending_ts;
|
|
gint64 pending_offset;
|
|
/* Offset since the last newseg */
|
|
gint64 tracked_offset;
|
|
/* tracked_offset when resyncing started */
|
|
gint64 sync_offset;
|
|
|
|
GstAdapter *adapter;
|
|
|
|
guint skip; /* number of frames to skip */
|
|
guint bit_rate; /* in kbps */
|
|
gint channels, rate, layer, version;
|
|
GstClockTime max_bitreservoir;
|
|
gint spf; /* Samples per frame */
|
|
|
|
gboolean resyncing; /* True when attempting to resync (stricter checks are
|
|
performed) */
|
|
gboolean sent_codec_tag;
|
|
|
|
/* VBR tracking */
|
|
guint avg_bitrate;
|
|
guint64 bitrate_sum;
|
|
guint frame_count;
|
|
guint last_posted_bitrate;
|
|
gint last_posted_crc;
|
|
guint last_posted_channel_mode;
|
|
|
|
/* Xing info */
|
|
guint32 xing_flags;
|
|
guint32 xing_frames;
|
|
GstClockTime xing_total_time;
|
|
guint32 xing_bytes;
|
|
/* percent -> filepos mapping */
|
|
guchar xing_seek_table[100];
|
|
/* filepos -> percent mapping */
|
|
guint16 xing_seek_table_inverse[256];
|
|
guint32 xing_vbr_scale;
|
|
guint xing_bitrate;
|
|
|
|
/* VBRI info */
|
|
guint32 vbri_frames;
|
|
GstClockTime vbri_total_time;
|
|
guint32 vbri_bytes;
|
|
guint vbri_bitrate;
|
|
guint vbri_seek_points;
|
|
guint32 *vbri_seek_table;
|
|
gboolean vbri_valid;
|
|
|
|
/* Accurate seeking */
|
|
GList *seek_table;
|
|
GMutex *pending_seeks_lock;
|
|
GSList *pending_accurate_seeks;
|
|
gboolean exact_position;
|
|
|
|
GSList *pending_nonaccurate_seeks;
|
|
|
|
/* Track whether we're seekable (in BYTES format, if upstream operates in
|
|
* TIME format, we don't care about seekability and assume upstream handles
|
|
* it). The seek table for accurate seeking is not maintained if we're not
|
|
* seekable. */
|
|
gboolean seekable;
|
|
|
|
/* minimum distance between two index entries */
|
|
GstClockTimeDiff idx_interval;
|
|
|
|
/* pending segment */
|
|
GstEvent *pending_segment;
|
|
/* pending events */
|
|
GList *pending_events;
|
|
};
|
|
|
|
struct _GstMPEGAudioParseClass {
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
GType gst_mp3parse_get_type(void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __MP3PARSE_H__ */
|