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159 lines
4.6 KiB
C
159 lines
4.6 KiB
C
/* GStreamer RealMedia demuxer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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_RMDEMUX_H__
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#define __GST_RMDEMUX_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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#include <gst/pbutils/descriptions.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RMDEMUX \
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(gst_rmdemux_get_type())
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#define GST_RMDEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RMDEMUX,GstRMDemux))
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#define GST_RMDEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RMDEMUX,GstRMDemuxClass))
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#define GST_IS_RMDEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RMDEMUX))
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#define GST_IS_RMDEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RMDEMUX))
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typedef enum
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{
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RMDEMUX_STATE_NULL,
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RMDEMUX_STATE_HEADER,
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RMDEMUX_STATE_HEADER_UNKNOWN,
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RMDEMUX_STATE_HEADER_RMF,
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RMDEMUX_STATE_HEADER_PROP,
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RMDEMUX_STATE_HEADER_MDPR,
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RMDEMUX_STATE_HEADER_INDX,
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RMDEMUX_STATE_HEADER_DATA,
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RMDEMUX_STATE_HEADER_CONT,
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RMDEMUX_STATE_HEADER_SEEKING,
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RMDEMUX_STATE_SEEKING,
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RMDEMUX_STATE_DATA_PACKET,
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RMDEMUX_STATE_SEEKING_EOS,
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RMDEMUX_STATE_EOS,
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RMDEMUX_STATE_INDX_DATA
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} GstRMDemuxState;
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typedef enum
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{
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RMDEMUX_LOOP_STATE_HEADER,
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RMDEMUX_LOOP_STATE_INDEX,
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RMDEMUX_LOOP_STATE_DATA
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} GstRMDemuxLoopState;
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typedef enum
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{
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GST_RMDEMUX_STREAM_UNKNOWN,
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GST_RMDEMUX_STREAM_VIDEO,
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GST_RMDEMUX_STREAM_AUDIO,
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GST_RMDEMUX_STREAM_FILEINFO
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} GstRMDemuxStreamType;
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typedef struct _GstRMDemux GstRMDemux;
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typedef struct _GstRMDemuxClass GstRMDemuxClass;
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typedef struct _GstRMDemuxStream GstRMDemuxStream;
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struct _GstRMDemux {
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GstElement element;
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/* pads */
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GstPad *sinkpad;
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GSList *streams;
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guint n_video_streams;
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guint n_audio_streams;
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GstAdapter *adapter;
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gboolean have_pads;
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guint32 timescale;
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guint64 duration;
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guint32 avg_packet_size;
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guint32 index_offset;
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guint32 data_offset;
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guint32 num_packets;
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guint offset;
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gboolean seekable;
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GstRMDemuxState state;
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GstRMDemuxLoopState loop_state;
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GstRMDemuxStream *index_stream;
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/* playback start/stop positions */
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GstSegment segment;
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gboolean segment_running;
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gboolean running;
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/* Whether we need to send a newsegment event */
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gboolean need_newsegment;
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/* Current timestamp */
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GstClockTime cur_timestamp;
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/* First timestamp */
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GstClockTime base_ts;
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GstClockTime first_ts;
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int n_chunks;
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int chunk_index;
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guint32 object_id;
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guint32 size;
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guint16 object_version;
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/* container tags for all streams */
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GstTagList *pending_tags;
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};
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struct _GstRMDemuxClass {
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GstElementClass parent_class;
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};
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/* RealMedia VideoCodec FOURCC codes */
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#define GST_RM_VDO_RV10 GST_MAKE_FOURCC('R','V','1','0') // RealVideo 1
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#define GST_RM_VDO_RV20 GST_MAKE_FOURCC('R','V','2','0') // RealVideo G2
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#define GST_RM_VDO_RV30 GST_MAKE_FOURCC('R','V','3','0') // RealVideo 8
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#define GST_RM_VDO_RV40 GST_MAKE_FOURCC('R','V','4','0') // RealVideo 9+10
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/* RealMedia AudioCodec FOURCC codes */
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#define GST_RM_AUD_14_4 GST_MAKE_FOURCC('1','4','_','4') // 14.4 Audio Codec
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#define GST_RM_AUD_28_8 GST_MAKE_FOURCC('2','8','_','8') // 28.8 Audio Codec
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#define GST_RM_AUD_COOK GST_MAKE_FOURCC('c','o','o','k') // Cooker G2 Audio Codec
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#define GST_RM_AUD_DNET GST_MAKE_FOURCC('d','n','e','t') // DolbyNet Audio Codec (low bitrate Dolby AC3)
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#define GST_RM_AUD_SIPR GST_MAKE_FOURCC('s','i','p','r') // Sipro/ACELP.NET Voice Codec
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#define GST_RM_AUD_RAAC GST_MAKE_FOURCC('r','a','a','c') // LE-AAC Audio Codec
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#define GST_RM_AUD_RACP GST_MAKE_FOURCC('r','a','c','p') // HE-AAC Audio Codec
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#define GST_RM_AUD_RALF GST_MAKE_FOURCC('r','a','l','f') // RealAudio Lossless
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#define GST_RM_AUD_ATRC GST_MAKE_FOURCC('a','t','r','c') // Sony ATRAC3 Audio Codec
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#define GST_RM_AUD_xRA4 GST_MAKE_FOURCC('.','r','a','4') // Not a real audio codec
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#define GST_RM_AUD_xRA5 GST_MAKE_FOURCC('.','r','a','5') // Not a real audio codec
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gboolean gst_rmdemux_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_RMDEMUX_H__ */
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