141 lines
3.3 KiB
C
141 lines
3.3 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2006> Nokia Corporation, Stefan Kost <stefan.kost@nokia.com>.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_WAVPARSE_H__
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#define __GST_WAVPARSE_H__
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#include <gst/gst.h>
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#include "gst/riff/riff-ids.h"
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#include "gst/riff/riff-read.h"
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#include <gst/base/gstadapter.h>
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G_BEGIN_DECLS
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#define GST_TYPE_WAVPARSE \
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(gst_wavparse_get_type())
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#define GST_WAVPARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPARSE,GstWavParse))
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#define GST_WAVPARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPARSE,GstWavParseClass))
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#define GST_IS_WAVPARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPARSE))
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#define GST_IS_WAVPARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPARSE))
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typedef enum {
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GST_WAVPARSE_START,
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GST_WAVPARSE_HEADER,
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GST_WAVPARSE_DATA
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} GstWavParseState;
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typedef struct _GstWavParse GstWavParse;
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typedef struct _GstWavParseClass GstWavParseClass;
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/**
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* GstWavParse:
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*
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* Opaque data structure.
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*/
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struct _GstWavParse {
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GstElement parent;
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/* pads */
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GstPad *sinkpad,*srcpad;
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/* for delayed source pad creation for when
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* we have the first chunk of data and know
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* the format for sure */
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GstCaps *caps;
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GstTagList *tags;
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GstToc *toc;
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GList *cues;
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GList *labls;
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GList *notes;
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GstEvent *start_segment;
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/* WAVE decoding state */
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GstWavParseState state;
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gboolean abort_buffering;
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/* format of audio, see defines below */
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gint format;
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/* useful audio data */
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guint16 depth;
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guint32 rate;
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guint16 channels;
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guint16 blockalign;
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guint16 width;
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guint32 av_bps;
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guint64 fact;
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/* real bps used or 0 when no bitrate is known */
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guint32 bps;
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gboolean vbr;
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guint bytes_per_sample;
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guint max_buf_size;
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/* position in data part */
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guint64 offset;
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guint64 end_offset;
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guint64 dataleft;
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/* offset/length of data part */
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guint64 datastart;
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guint64 datasize;
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/* duration in time */
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guint64 duration;
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/* pending seek */
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GstEvent *seek_event;
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/* For streaming */
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GstAdapter *adapter;
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gboolean got_fmt;
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gboolean streaming;
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/* configured segment, start/stop expressed in time or bytes */
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GstSegment segment;
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/* for late pad configuration */
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gboolean first;
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/* discont after seek */
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gboolean discont;
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gboolean ignore_length;
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/* Size of the data as written in the chunk size */
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guint32 chunk_size;
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};
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struct _GstWavParseClass {
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GstElementClass parent_class;
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};
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GType gst_wavparse_get_type(void);
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GST_ELEMENT_REGISTER_DECLARE (wavparse);
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G_END_DECLS
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#endif /* __GST_WAVPARSE_H__ */
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