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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6148 | serge | 1 | /* |
| 2 | * RIFF common functions and data |
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| 3 | * copyright (c) 2000 Fabrice Bellard |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | /** |
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| 23 | * @file |
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| 24 | * internal header for RIFF based (de)muxers |
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| 25 | * do NOT include this in end user applications |
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| 26 | */ |
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| 27 | |||
| 28 | #ifndef AVFORMAT_RIFF_H |
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| 29 | #define AVFORMAT_RIFF_H |
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| 30 | |||
| 31 | #include "libavcodec/avcodec.h" |
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| 32 | #include "avio.h" |
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| 33 | #include "internal.h" |
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| 34 | #include "metadata.h" |
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| 35 | |||
| 36 | extern const AVMetadataConv ff_riff_info_conv[]; |
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| 37 | |||
| 38 | int64_t ff_start_tag(AVIOContext *pb, const char *tag); |
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| 39 | void ff_end_tag(AVIOContext *pb, int64_t start); |
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| 40 | |||
| 41 | /** |
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| 42 | * Read BITMAPINFOHEADER structure and set AVStream codec width, height and |
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| 43 | * bits_per_encoded_sample fields. Does not read extradata. |
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| 44 | * @return codec tag |
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| 45 | */ |
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| 46 | int ff_get_bmp_header(AVIOContext *pb, AVStream *st, unsigned *esize); |
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| 47 | |||
| 48 | void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf); |
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| 49 | int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc); |
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| 50 | enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps); |
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| 51 | int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size); |
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| 52 | |||
| 53 | extern const AVCodecTag ff_codec_bmp_tags[]; // exposed through avformat_get_riff_video_tags() |
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| 54 | extern const AVCodecTag ff_codec_wav_tags[]; |
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| 55 | |||
| 56 | void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale); |
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| 57 | |||
| 58 | int ff_read_riff_info(AVFormatContext *s, int64_t size); |
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| 59 | |||
| 60 | /** |
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| 61 | * Write all recognized RIFF tags from s->metadata |
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| 62 | */ |
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| 63 | void ff_riff_write_info(AVFormatContext *s); |
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| 64 | |||
| 65 | /** |
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| 66 | * Write a single RIFF info tag |
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| 67 | */ |
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| 68 | void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str); |
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| 69 | |||
| 70 | typedef uint8_t ff_asf_guid[16]; |
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| 71 | |||
| 72 | typedef struct AVCodecGuid { |
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| 73 | enum AVCodecID id; |
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| 74 | ff_asf_guid guid; |
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| 75 | } AVCodecGuid; |
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| 76 | |||
| 77 | extern const AVCodecGuid ff_codec_wav_guids[]; |
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| 78 | |||
| 79 | #define FF_PRI_GUID \ |
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| 80 | "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x" |
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| 81 | |||
| 82 | #define FF_ARG_GUID(g) \ |
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| 83 | g[0], g[1], g[2], g[3], g[4], g[5], g[6], g[7], \ |
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| 84 | g[8], g[9], g[10], g[11], g[12], g[13], g[14], g[15] |
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| 85 | |||
| 86 | #define FF_MEDIASUBTYPE_BASE_GUID \ |
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| 87 | 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 |
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| 88 | |||
| 89 | static av_always_inline int ff_guidcmp(const void *g1, const void *g2) |
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| 90 | { |
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| 91 | return memcmp(g1, g2, sizeof(ff_asf_guid)); |
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| 92 | } |
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| 93 | |||
| 94 | void ff_get_guid(AVIOContext *s, ff_asf_guid *g); |
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| 95 | |||
| 96 | enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid); |
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| 97 | |||
| 98 | #endif /* AVFORMAT_RIFF_H */ |