152 lines
5.1 KiB
C
152 lines
5.1 KiB
C
/* Quicktime muxer plugin for GStreamer
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* Copyright (C) 2008 Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>
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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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/*
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* Unless otherwise indicated, Source Code is licensed under MIT license.
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* See further explanation attached in License Statement (distributed in the file
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* LICENSE).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __DESCRIPTORS_H__
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#define __DESCRIPTORS_H__
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#include <glib.h>
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#include <string.h>
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#include "properties.h"
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/*
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* Tags for descriptor (each kind is represented by a number, instead of fourcc as in atoms)
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*/
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#define OBJECT_DESC_TAG 0x01
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#define INIT_OBJECT_DESC_TAG 0x02
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#define ES_DESCRIPTOR_TAG 0x03
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#define DECODER_CONFIG_DESC_TAG 0x04
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#define DECODER_SPECIFIC_INFO_TAG 0x05
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#define SL_CONFIG_DESC_TAG 0x06
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#define ES_ID_INC_TAG 0x0E
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#define MP4_INIT_OBJECT_DESC_TAG 0x10
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#define ESDS_OBJECT_TYPE_MPEG1_P3 0x6B
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#define ESDS_OBJECT_TYPE_MPEG2_P7_MAIN 0x66
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#define ESDS_OBJECT_TYPE_MPEG4_P7_LC 0x67
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#define ESDS_OBJECT_TYPE_MPEG4_P7_SSR 0x68
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#define ESDS_OBJECT_TYPE_MPEG4_P2 0x20
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#define ESDS_OBJECT_TYPE_MPEG4_P3 0x40
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#define ESDS_STREAM_TYPE_VISUAL 0x04
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#define ESDS_STREAM_TYPE_AUDIO 0x05
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typedef struct _BaseDescriptor
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{
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guint8 tag;
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/* the first bit of each byte indicates if the next byte should be used */
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guint8 size[4];
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} BaseDescriptor;
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typedef struct _SLConfigDescriptor
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{
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BaseDescriptor base;
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guint8 predefined; /* everything is supposed predefined */
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} SLConfigDescriptor;
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typedef struct _DecoderSpecificInfoDescriptor
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{
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BaseDescriptor base;
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guint32 length;
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guint8 *data;
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} DecoderSpecificInfoDescriptor;
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typedef struct _DecoderConfigDescriptor {
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BaseDescriptor base;
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guint8 object_type;
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/* following are condensed into streamType:
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* bit(6) streamType;
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* bit(1) upStream;
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* const bit(1) reserved=1;
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*/
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guint8 stream_type;
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guint8 buffer_size_DB[3];
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guint32 max_bitrate;
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guint32 avg_bitrate;
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DecoderSpecificInfoDescriptor *dec_specific_info;
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} DecoderConfigDescriptor;
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typedef struct _ESDescriptor
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{
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BaseDescriptor base;
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guint16 id;
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/* flags contains the following:
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* bit(1) streamDependenceFlag;
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* bit(1) URL_Flag;
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* bit(1) OCRstreamFlag;
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* bit(5) streamPriority;
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*/
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guint8 flags;
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guint16 depends_on_es_id;
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guint8 url_length; /* only if URL_flag is set */
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guint8 *url_string; /* size is url_length */
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guint16 ocr_es_id; /* only if OCRstreamFlag is set */
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DecoderConfigDescriptor dec_conf_desc;
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SLConfigDescriptor sl_conf_desc;
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/* optional remainder of ESDescriptor is not used */
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} ESDescriptor;
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/* --- FUNCTIONS --- */
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void desc_es_init (ESDescriptor *es);
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ESDescriptor *desc_es_descriptor_new (void);
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guint64 desc_es_descriptor_copy_data (ESDescriptor *es, guint8 **buffer,
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guint64 *size, guint64 *offset);
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void desc_es_descriptor_clear (ESDescriptor *es);
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DecoderSpecificInfoDescriptor *desc_dec_specific_info_new(void);
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void desc_dec_specific_info_free (DecoderSpecificInfoDescriptor *dsid);
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void desc_dec_specific_info_alloc_data (DecoderSpecificInfoDescriptor *dsid,
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guint32 size);
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#endif /* __DESCRIPTORS_H__ */
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