LCOV - code coverage report
Current view: top level - libavformat - riff.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 2 2 100.0 %
Date: 2017-12-17 16:07:53 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * RIFF common functions and data
       3             :  * copyright (c) 2000 Fabrice Bellard
       4             :  *
       5             :  * This file is part of FFmpeg.
       6             :  *
       7             :  * FFmpeg is free software; you can redistribute it and/or
       8             :  * modify it under the terms of the GNU Lesser General Public
       9             :  * License as published by the Free Software Foundation; either
      10             :  * version 2.1 of the License, or (at your option) any later version.
      11             :  *
      12             :  * FFmpeg is distributed in the hope that it will be useful,
      13             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15             :  * Lesser General Public License for more details.
      16             :  *
      17             :  * You should have received a copy of the GNU Lesser General Public
      18             :  * License along with FFmpeg; if not, write to the Free Software
      19             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      20             :  */
      21             : 
      22             : /**
      23             :  * @file
      24             :  * internal header for RIFF based (de)muxers
      25             :  * do NOT include this in end user applications
      26             :  */
      27             : 
      28             : #ifndef AVFORMAT_RIFF_H
      29             : #define AVFORMAT_RIFF_H
      30             : 
      31             : #include "libavcodec/avcodec.h"
      32             : #include "avio.h"
      33             : #include "internal.h"
      34             : #include "metadata.h"
      35             : 
      36             : extern const AVMetadataConv ff_riff_info_conv[];
      37             : 
      38             : int64_t ff_start_tag(AVIOContext *pb, const char *tag);
      39             : void ff_end_tag(AVIOContext *pb, int64_t start);
      40             : 
      41             : /**
      42             :  * Read BITMAPINFOHEADER structure and set AVStream codec width, height and
      43             :  * bits_per_encoded_sample fields. Does not read extradata.
      44             :  * Writes the size of the BMP file to *size.
      45             :  * @return codec tag
      46             :  */
      47             : int ff_get_bmp_header(AVIOContext *pb, AVStream *st, uint32_t *size);
      48             : 
      49             : void ff_put_bmp_header(AVIOContext *pb, AVCodecParameters *par, int for_asf, int ignore_extradata);
      50             : 
      51             : /**
      52             :  * Tell ff_put_wav_header() to use WAVEFORMATEX even for PCM codecs.
      53             :  */
      54             : #define FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX    0x00000001
      55             : 
      56             : /**
      57             :  * Tell ff_put_wav_header() to write an empty channel mask.
      58             :  */
      59             : #define FF_PUT_WAV_HEADER_SKIP_CHANNELMASK      0x00000002
      60             : 
      61             : /**
      62             :  * Write WAVEFORMAT header structure.
      63             :  *
      64             :  * @param flags a combination of FF_PUT_WAV_HEADER_* constants
      65             :  *
      66             :  * @return the size or -1 on error
      67             :  */
      68             : int ff_put_wav_header(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int flags);
      69             : 
      70             : enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps);
      71             : int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int size, int big_endian);
      72             : 
      73             : extern const AVCodecTag ff_codec_bmp_tags[]; // exposed through avformat_get_riff_video_tags()
      74             : extern const AVCodecTag ff_codec_wav_tags[];
      75             : 
      76             : void ff_parse_specific_params(AVStream *st, int *au_rate, int *au_ssize, int *au_scale);
      77             : 
      78             : int ff_read_riff_info(AVFormatContext *s, int64_t size);
      79             : 
      80             : /**
      81             :  * Write all recognized RIFF tags from s->metadata
      82             :  */
      83             : void ff_riff_write_info(AVFormatContext *s);
      84             : 
      85             : /**
      86             :  * Write a single RIFF info tag
      87             :  */
      88             : void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str);
      89             : 
      90             : typedef uint8_t ff_asf_guid[16];
      91             : 
      92             : typedef struct AVCodecGuid {
      93             :     enum AVCodecID id;
      94             :     ff_asf_guid guid;
      95             : } AVCodecGuid;
      96             : 
      97             : extern const AVCodecGuid ff_codec_wav_guids[];
      98             : 
      99             : #define FF_PRI_GUID \
     100             :     "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x " \
     101             :     "{%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x}"
     102             : 
     103             : #define FF_ARG_GUID(g) \
     104             :     g[0], g[1], g[2],  g[3],  g[4],  g[5],  g[6],  g[7], \
     105             :     g[8], g[9], g[10], g[11], g[12], g[13], g[14], g[15],\
     106             :     g[3], g[2], g[1],  g[0],  g[5],  g[4],  g[7],  g[6], \
     107             :     g[8], g[9], g[10], g[11], g[12], g[13], g[14], g[15]
     108             : 
     109             : #define FF_MEDIASUBTYPE_BASE_GUID \
     110             :     0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71
     111             : #define FF_AMBISONIC_BASE_GUID \
     112             :     0x21, 0x07, 0xD3, 0x11, 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00
     113             : #define FF_BROKEN_BASE_GUID \
     114             :     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA
     115             : 
     116       43772 : static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
     117             : {
     118       43772 :     return memcmp(g1, g2, sizeof(ff_asf_guid));
     119             : }
     120             : 
     121             : int ff_get_guid(AVIOContext *s, ff_asf_guid *g);
     122             : void ff_put_guid(AVIOContext *s, const ff_asf_guid *g);
     123             : const ff_asf_guid *ff_get_codec_guid(enum AVCodecID id, const AVCodecGuid *av_guid);
     124             : 
     125             : enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);
     126             : 
     127             : #endif /* AVFORMAT_RIFF_H */

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