making act segmenter

1 files changed, 163 insertions, 0 deletions

diff --git a/ffmpeg/libavformat/id3v2.h b/ffmpeg/libavformat/id3v2.h
new file mode 100644
index 0000000..e893922
--- /dev/null
+++ b/ffmpeg/libavformat/id3v2.h
@@ -0,0 +1,163 @@
+/*
+ * ID3v2 header parser
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_ID3V2_H
+#define AVFORMAT_ID3V2_H
+
+#include <stdint.h>
+#include "avformat.h"
+#include "internal.h"
+#include "metadata.h"
+
+#define ID3v2_HEADER_SIZE 10
+
+/**
+ * Default magic bytes for ID3v2 header: "ID3"
+ */
+#define ID3v2_DEFAULT_MAGIC "ID3"
+
+#define ID3v2_FLAG_DATALEN     0x0001
+#define ID3v2_FLAG_UNSYNCH     0x0002
+#define ID3v2_FLAG_ENCRYPTION  0x0004
+#define ID3v2_FLAG_COMPRESSION 0x0008
+
+enum ID3v2Encoding {
+    ID3v2_ENCODING_ISO8859  = 0,
+    ID3v2_ENCODING_UTF16BOM = 1,
+    ID3v2_ENCODING_UTF16BE  = 2,
+    ID3v2_ENCODING_UTF8     = 3,
+};
+
+typedef struct ID3v2EncContext {
+    int      version;       ///< ID3v2 minor version, either 3 or 4
+    int64_t size_pos;       ///< offset of the tag total size
+    int          len;       ///< size of the tag written so far
+} ID3v2EncContext;
+
+typedef struct ID3v2ExtraMeta {
+    const char *tag;
+    void *data;
+    struct ID3v2ExtraMeta *next;
+} ID3v2ExtraMeta;
+
+typedef struct ID3v2ExtraMetaGEOB {
+    uint32_t datasize;
+    uint8_t *mime_type;
+    uint8_t *file_name;
+    uint8_t *description;
+    uint8_t *data;
+} ID3v2ExtraMetaGEOB;
+
+typedef struct ID3v2ExtraMetaAPIC {
+    AVBufferRef *buf;
+    const char  *type;
+    uint8_t     *description;
+    enum AVCodecID id;
+} ID3v2ExtraMetaAPIC;
+
+/**
+ * Detect ID3v2 Header.
+ * @param buf   must be ID3v2_HEADER_SIZE byte long
+ * @param magic magic bytes to identify the header.
+ * If in doubt, use ID3v2_DEFAULT_MAGIC.
+ */
+int ff_id3v2_match(const uint8_t *buf, const char *magic);
+
+/**
+ * Get the length of an ID3v2 tag.
+ * @param buf must be ID3v2_HEADER_SIZE bytes long and point to the start of an
+ * already detected ID3v2 tag
+ */
+int ff_id3v2_tag_len(const uint8_t *buf);
+
+/**
+ * Read an ID3v2 tag, including supported extra metadata
+ * @param extra_meta If not NULL, extra metadata is parsed into a list of
+ * ID3v2ExtraMeta structs and *extra_meta points to the head of the list
+ */
+void ff_id3v2_read(AVFormatContext *s, const char *magic, ID3v2ExtraMeta **extra_meta);
+
+/**
+ * Initialize an ID3v2 tag.
+ */
+void ff_id3v2_start(ID3v2EncContext *id3, AVIOContext *pb, int id3v2_version,
+                    const char *magic);
+
+/**
+ * Convert and write all global metadata from s into an ID3v2 tag.
+ */
+int ff_id3v2_write_metadata(AVFormatContext *s, ID3v2EncContext *id3);
+
+/**
+ * Write an attached picture from pkt into an ID3v2 tag.
+ */
+int ff_id3v2_write_apic(AVFormatContext *s, ID3v2EncContext *id3, AVPacket *pkt);
+
+/**
+ * Finalize an opened ID3v2 tag.
+ */
+void ff_id3v2_finish(ID3v2EncContext *id3, AVIOContext *pb);
+
+/**
+ * Write an ID3v2 tag containing all global metadata from s.
+ * @param id3v2_version Subversion of ID3v2; supported values are 3 and 4
+ * @param magic magic bytes to identify the header
+ * If in doubt, use ID3v2_DEFAULT_MAGIC.
+ */
+int ff_id3v2_write_simple(struct AVFormatContext *s, int id3v2_version, const char *magic);
+
+/**
+ * Free memory allocated parsing special (non-text) metadata.
+ * @param extra_meta Pointer to a pointer to the head of a ID3v2ExtraMeta list, *extra_meta is set to NULL.
+ */
+void ff_id3v2_free_extra_meta(ID3v2ExtraMeta **extra_meta);
+
+/**
+ * Create a stream for each APIC (attached picture) extracted from the
+ * ID3v2 header.
+ */
+int ff_id3v2_parse_apic(AVFormatContext *s, ID3v2ExtraMeta **extra_meta);
+
+extern const AVMetadataConv ff_id3v2_34_metadata_conv[];
+extern const AVMetadataConv ff_id3v2_4_metadata_conv[];
+
+/**
+ * A list of text information frames allowed in both ID3 v2.3 and v2.4
+ * http://www.id3.org/id3v2.4.0-frames
+ * http://www.id3.org/id3v2.4.0-changes
+ */
+extern const char ff_id3v2_tags[][4];
+
+/**
+ * ID3v2.4-only text information frames.
+ */
+extern const char ff_id3v2_4_tags[][4];
+
+/**
+ * ID3v2.3-only text information frames.
+ */
+extern const char ff_id3v2_3_tags[][4];
+
+extern const CodecMime ff_id3v2_mime_tags[];
+
+extern const char *ff_id3v2_picture_types[21];
+
+#endif /* AVFORMAT_ID3V2_H */