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     AVCSubDescriptor,
  52 };
  53
  54 enum MXFFrameLayout {
  55     FullFrame = 0,
  56     SeparateFields,
  57     OneField,
  58     MixedFields,
  59     SegmentedFrame,
  60 };
  61
  62 typedef struct KLVPacket {
  63     UID key;
  64     int64_t offset;
  65     uint64_t length;
  66     int64_t next_klv;
  67 } KLVPacket;
  68
  69 typedef enum {
  70     NormalWrap = 0,
  71     D10D11Wrap,
  72     RawAWrap,
  73     RawVWrap
  74 } MXFWrappingIndicatorType;
  75
  76 typedef struct MXFCodecUL {
  77     UID uid;
  78     unsigned matching_len;
  79     int id;
  80     const char *desc;
  81     unsigned wrapping_indicator_pos;
  82     MXFWrappingIndicatorType wrapping_indicator_type;
  83 } MXFCodecUL;
  84
  85 typedef struct {
  86     struct AVRational time_base;
  87     int samples_per_frame[6];
  88 } MXFSamplesPerFrame;
  89
  90 extern const MXFCodecUL ff_mxf_data_definition_uls[];
  91 extern const MXFCodecUL ff_mxf_codec_uls[];
  92 extern const MXFCodecUL ff_mxf_pixel_format_uls[];
  93 extern const MXFCodecUL ff_mxf_codec_tag_uls[];
  94
  95 int ff_mxf_decode_pixel_layout(const char pixel_layout[16], enum AVPixelFormat *pix_fmt);
  96 const MXFSamplesPerFrame *ff_mxf_get_samples_per_frame(AVFormatContext *s, AVRational time_base);
  97 int ff_mxf_get_content_package_rate(AVRational time_base);
  98
  99
 100 #define PRIxUID                             \
 101     "%02x.%02x.%02x.%02x."                  \
 102     "%02x.%02x.%02x.%02x."                  \
 103     "%02x.%02x.%02x.%02x."                  \
 104     "%02x.%02x.%02x.%02x"
 105
 106 #define UID_ARG(x) \
 107     (x)[0],  (x)[1],  (x)[2],  (x)[3],      \
 108     (x)[4],  (x)[5],  (x)[6],  (x)[7],      \
 109     (x)[8],  (x)[9],  (x)[10], (x)[11],     \
 110     (x)[12], (x)[13], (x)[14], (x)[15]      \
 111
 112 #ifdef DEBUG
 113 #define PRINT_KEY(pc, s, x)                         \
 114     av_log(pc, AV_LOG_VERBOSE,                      \
 115            "%s "                                    \
 116            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 117            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 118            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 119            "0x%02x,0x%02x,0x%02x,0x%02x ",          \
 120             s, UID_ARG(x));                         \
 121     av_log(pc, AV_LOG_INFO,                         \
 122            "%s "                                    \
 123            "%02x.%02x.%02x.%02x."                   \
 124            "%02x.%02x.%02x.%02x."                   \
 125            "%02x.%02x.%02x.%02x."                   \
 126            "%02x.%02x.%02x.%02x\n",                 \
 127             s, UID_ARG(x))
 128 #else
 129 #define PRINT_KEY(pc, s, x) do { if(0)              \
 130     av_log(pc, AV_LOG_VERBOSE,                      \
 131            "%s "                                    \
 132            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 133            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 134            "0x%02x,0x%02x,0x%02x,0x%02x,"           \
 135            "0x%02x,0x%02x,0x%02x,0x%02x ",          \
 136             s, UID_ARG(x));                         \
 137     }while(0)
 138 #endif
 139
 140 #endif /* AVFORMAT_MXF_H */