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Original commit message from CVS: * configure.ac: Check for optional dependency on zlib for id3demux * gst/id3demux/Makefile.am: * gst/id3demux/gstid3demux.c: (gst_gst_id3demux_get_type), (gst_id3demux_base_init), (gst_id3demux_class_init), (gst_id3demux_reset), (gst_id3demux_init), (gst_id3demux_dispose), (gst_id3demux_add_srcpad), (gst_id3demux_remove_srcpad), (gst_id3demux_trim_buffer), (gst_id3demux_chain), (gst_id3demux_set_property), (gst_id3demux_get_property), (id3demux_get_upstream_size), (gst_id3demux_srcpad_event), (gst_id3demux_read_id3v1), (gst_id3demux_read_id3v2), (gst_id3demux_sink_activate), (gst_id3demux_src_activate_pull), (gst_id3demux_src_checkgetrange), (gst_id3demux_read_range), (gst_id3demux_src_getrange), (gst_id3demux_change_state), (gst_id3demux_pad_query), (gst_id3demux_get_query_types), (simple_find_peek), (simple_find_suggest), (gst_id3demux_do_typefind), (gst_id3demux_send_tag_event), (plugin_init): * gst/id3demux/gstid3demux.h: * gst/id3demux/id3tags.c: (read_synch_uint), (id3demux_read_id3v1_tag), (id3demux_read_id3v2_tag), (id3demux_id3v2_frame_hdr_size), (convert_fid_to_v240), (id3demux_id3v2_frames_to_tag_list): * gst/id3demux/id3tags.h: * gst/id3demux/id3v2.4.0-frames.txt: * gst/id3demux/id3v2.4.0-structure.txt: * gst/id3demux/id3v2frames.c: (id3demux_id3v2_parse_frame), (parse_comment_frame), (parse_text_identification_frame), (id3v2_tag_to_taglist), (parse_split_strings): All new LGPL id3 demuxer. Can use zlib for compressed frames, otherwise it discards them. Works on my test files. * gst/wavparse/gstwavparse.c: (gst_wavparse_loop): Don't send EOS to a non-existing srcpad The debug category can be static
112 lines
3 KiB
C
112 lines
3 KiB
C
/* Copyright 2005 Jan Schmidt <thaytan@mad.scientist.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __ID3TAGS_H__
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#define __ID3TAGS_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define ID3V1_TAG_SIZE 128
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#define ID3V2_MARK_SIZE 3
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#define ID3V2_HDR_SIZE 10
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typedef enum {
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ID3TAGS_V1_BAD_SIZE,
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ID3TAGS_MORE_DATA,
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ID3TAGS_READ_TAG,
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ID3TAGS_BROKEN_TAG
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} ID3TagsResult;
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/* From id3tags.c */
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ID3TagsResult id3demux_read_id3v1_tag (GstBuffer *buffer, guint *id3v1_size,
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GstTagList **tags);
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ID3TagsResult id3demux_read_id3v2_tag (GstBuffer *buffer, guint *id3v2_size,
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GstTagList **tags);
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G_END_DECLS
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/* Things shared by id3tags.c and id3v2frames.c */
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#define ID3V2_VERSION 0x0400
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#define ID3V2_VER_MAJOR(v) ((v) >> 8)
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#define ID3V2_VER_MINOR(v) ((v) & 0xff)
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typedef struct {
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guint16 version;
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guint8 flags;
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guint32 size;
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guint8 *frame_data;
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guint32 frame_data_size;
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guint32 ext_hdr_size;
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guint8 ext_flag_bytes;
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guint8 *ext_flag_data;
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} ID3v2Header;
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typedef struct {
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ID3v2Header hdr;
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GstBuffer *buffer;
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GstTagList *tags;
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/* Current frame decoding */
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guint cur_frame_size;
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gchar *frame_id;
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guint16 frame_flags;
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guint8 *parse_data;
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guint parse_size;
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} ID3TagsWorking;
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enum {
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ID3V2_HDR_FLAG_UNSYNC = 0x80,
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ID3V2_HDR_FLAG_EXTHDR = 0x40,
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ID3V2_HDR_FLAG_EXPERIMENTAL = 0x20,
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ID3V2_HDR_FLAG_FOOTER = 0x10
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};
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enum {
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ID3V2_EXT_FLAG_UPDATE = 0x80,
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ID3V2_EXT_FLAG_CRC = 0x40,
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ID3V2_EXT_FLAG_RESTRICTED = 0x20
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};
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enum {
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ID3V2_FRAME_STATUS_FRAME_ALTER_PRESERVE = 0x4000,
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ID3V2_FRAME_STATUS_FILE_ALTER_PRESERVE = 0x2000,
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ID3V2_FRAME_STATUS_READONLY = 0x1000,
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ID3V2_FRAME_FORMAT_GROUPING_ID = 0x0040,
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ID3V2_FRAME_FORMAT_COMPRESSION = 0x0008,
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ID3V2_FRAME_FORMAT_ENCRYPTION = 0x0004,
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ID3V2_FRAME_FORMAT_UNSYNCHRONISATION = 0x0002,
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ID3V2_FRAME_FORMAT_DATA_LENGTH_INDICATOR = 0x0001
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};
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#define ID3V2_3_FRAME_FLAGS_MASK \
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(ID3V2_FRAME_STATUS_FRAME_ALTER_PRESERVE | \
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ID3V2_FRAME_STATUS_FILE_ALTER_PRESERVE | \
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ID3V2_FRAME_STATUS_READONLY | \
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ID3V2_FRAME_FORMAT_GROUPING_ID | \
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ID3V2_FRAME_FORMAT_COMPRESSION | \
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ID3V2_FRAME_FORMAT_ENCRYPTION)
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/* From id3v2frames.c */
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gboolean id3demux_id3v2_parse_frame (ID3TagsWorking *work);
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#endif
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