git.sesse.net Git - ffmpeg/blob - libavformat/mxf.h

   1 /*
   2  * MXF
   3  * Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
   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 #ifndef AVFORMAT_MXF_H
  22 #define AVFORMAT_MXF_H
  23
  24 #include "avformat.h"
  25 #include "libavcodec/avcodec.h"
  26 #include <stdint.h>
  27
  28 typedef uint8_t UID[16];
  29
  30 enum MXFMetadataSetType {
  31     AnyType,
  32     MaterialPackage,
  33     SourcePackage,
  34     SourceClip,
  35     TimecodeComponent,
  36     PulldownComponent,
  37     Sequence,
  38     MultipleDescriptor,
  39     Descriptor,
  40     Track,
  41     CryptoContext,
  42     Preface,
  43     Identification,
  44     ContentStorage,
  45     SubDescriptor,
  46     IndexTableSegment,
  47     EssenceContainerData,
  48     EssenceGroup,
  49     TaggedValue,
  50     TapeDescriptor,
  51 };
  52
  53 enum MXFFrameLayout {
  54     FullFrame = 0,
  55     SeparateFields,
  56     OneField,
  57     MixedFields,
  58     SegmentedFrame,
  59 };
  60
  61 typedef struct KLVPacket {
  62     UID key;
  63     int64_t offset;
  64     uint64_t length;
  65     int64_t next_klv;
  66 } KLVPacket;
  67
  68 typedef struct MXFCodecUL {
  69     UID uid;
  70     unsigned matching_len;
  71     int id;
  72     const char *desc;
  73 } MXFCodecUL;
  74
  75 typedef struct {
  76     struct AVRational time_base;
  77     int samples_per_frame[6];
  78 } MXFSamplesPerFrame;
  79
  80 extern const MXFCodecUL ff_mxf_data_definition_uls[];
  81 extern const MXFCodecUL ff_mxf_codec_uls[];
  82 extern const MXFCodecUL ff_mxf_pixel_format_uls[];
  83 extern const MXFCodecUL ff_mxf_codec_tag_uls[];
  84
  85 int ff_mxf_decode_pixel_layout(const char pixel_layout[16], enum AVPixelFormat *pix_fmt);
  86 const MXFSamplesPerFrame *ff_mxf_get_samples_per_frame(AVFormatContext *s, AVRational time_base);
  87
  88 #define PRIxUID                             \
  89     "%02x.%02x.%02x.%02x."                  \
  90     "%02x.%02x.%02x.%02x."                  \
  91     "%02x.%02x.%02x.%02x."                  \
  92     "%02x.%02x.%02x.%02x"
  93
  94 #define UID_ARG(x) \
  95     (x)[0],  (x)[1],  (x)[2],  (x)[3],      \
  96     (x)[4],  (x)[5],  (x)[6],  (x)[7],      \
  97     (x)[8],  (x)[9],  (x)[10], (x)[11],     \
  98     (x)[12], (x)[13], (x)[14], (x)[15]      \
  99
 100 #ifdef DEBUG
 101 #define PRINT_KEY(pc, s, x)                         \
 102     av_log(pc, AV_LOG_VERBOSE,                      \
 103            "%s "                                    \
 104            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 105            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 106            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 107            "0x%02x,0x%02x,0x%02x,0x%02x ",          \
 108             s, UID_ARG(x));                         \
 109     av_log(pc, AV_LOG_INFO,                         \
 110            "%s "                                    \
 111            "%02x.%02x.%02x.%02x."                   \
 112            "%02x.%02x.%02x.%02x."                   \
 113            "%02x.%02x.%02x.%02x."                   \
 114            "%02x.%02x.%02x.%02x\n",                 \
 115             s, UID_ARG(x))
 116 #else
 117 #define PRINT_KEY(pc, s, x) do { if(0)              \
 118     av_log(pc, AV_LOG_VERBOSE,                      \
 119            "%s "                                    \
 120            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 121            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 122            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 123            "0x%02x,0x%02x,0x%02x,0x%02x ",          \
 124             s, UID_ARG(x));                         \
 125     }while(0)
 126 #endif
 127
 128 #endif /* AVFORMAT_MXF_H */