diff ffmpeg/libavformat/riff.h @ 11:f445c3017523

new files

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ffmpeg/libavformat/riff.h	Sun Apr 21 11:16:23 2013 +0200
@@ -0,0 +1,97 @@
+/*
+ * RIFF common functions and data
+ * copyright (c) 2000 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
+ */
+
+/**
+ * @file
+ * internal header for RIFF based (de)muxers
+ * do NOT include this in end user applications
+ */
+
+#ifndef AVFORMAT_RIFF_H
+#define AVFORMAT_RIFF_H
+
+#include "libavcodec/avcodec.h"
+#include "avio.h"
+#include "internal.h"
+#include "metadata.h"
+
+extern const AVMetadataConv ff_riff_info_conv[];
+extern const char ff_riff_tags[][5];
+
+int64_t ff_start_tag(AVIOContext *pb, const char *tag);
+void ff_end_tag(AVIOContext *pb, int64_t start);
+
+/**
+ * Read BITMAPINFOHEADER structure and set AVStream codec width, height and
+ * bits_per_encoded_sample fields. Does not read extradata.
+ * @return codec tag
+ */
+int ff_get_bmp_header(AVIOContext *pb, AVStream *st, unsigned *esize);
+
+void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
+int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc);
+enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps);
+int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size);
+
+extern const AVCodecTag ff_codec_bmp_tags[]; // exposed through avformat_get_riff_video_tags()
+extern const AVCodecTag ff_codec_wav_tags[];
+
+void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
+
+typedef uint8_t ff_asf_guid[16];
+
+int ff_read_riff_info(AVFormatContext *s, int64_t size);
+
+#define FF_PRI_GUID \
+    "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
+#define FF_ARG_GUID(g) \
+    g[0],g[1],g[2],g[3],g[4],g[5],g[6],g[7],g[8],g[9],g[10],g[11],g[12],g[13],g[14],g[15]
+
+static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
+{
+    return memcmp(g1, g2, sizeof(ff_asf_guid));
+}
+
+void ff_get_guid(AVIOContext *s, ff_asf_guid *g);
+
+typedef struct {
+    enum AVCodecID id;
+    ff_asf_guid guid;
+} AVCodecGuid;
+
+enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);
+
+extern const AVCodecGuid ff_codec_wav_guids[];
+
+#define FF_MEDIASUBTYPE_BASE_GUID \
+    0x00,0x00,0x10,0x00,0x80,0x00,0x00,0xAA,0x00,0x38,0x9B,0x71
+
+/**
+ * Write all recognized RIFF tags from s->metadata
+ */
+void ff_riff_write_info(AVFormatContext *s);
+
+/**
+ * Write a single RIFF info tag
+ */
+void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str);
+
+#endif /* AVFORMAT_RIFF_H */