libmpdemux/aviheader.h

   1 #ifndef AVIHEADER_H
   2 #define AVIHEADER_H
   3
   4 //#include "config.h"   /* get correct definition WORDS_BIGENDIAN */
   5 #include "libavutil/common.h"
   6 #include "mpbswap.h"
   7
   8 #ifndef mmioFOURCC
   9 #define mmioFOURCC( ch0, ch1, ch2, ch3 )                                \
  10                 ( (uint32_t)(uint8_t)(ch0) | ( (uint32_t)(uint8_t)(ch1) << 8 ) |        \
  11                 ( (uint32_t)(uint8_t)(ch2) << 16 ) | ( (uint32_t)(uint8_t)(ch3) << 24 ) )
  12 #endif
  13
  14 /* Macro to make a TWOCC out of two characters */
  15 #ifndef aviTWOCC
  16 #define aviTWOCC(ch0, ch1) ((uint16_t)(uint8_t)(ch0) | ((uint16_t)(uint8_t)(ch1) << 8))
  17 #endif
  18
  19 //typedef uint16_t TWOCC;
  20 //typedef uint32_t FOURCC;
  21
  22 /* form types, list types, and chunk types */
  23 #define formtypeAVI             mmioFOURCC('A', 'V', 'I', ' ')
  24 #define listtypeAVIHEADER       mmioFOURCC('h', 'd', 'r', 'l')
  25 #define ckidAVIMAINHDR          mmioFOURCC('a', 'v', 'i', 'h')
  26 #define listtypeSTREAMHEADER    mmioFOURCC('s', 't', 'r', 'l')
  27 #define ckidSTREAMHEADER        mmioFOURCC('s', 't', 'r', 'h')
  28 #define ckidSTREAMFORMAT        mmioFOURCC('s', 't', 'r', 'f')
  29 #define ckidSTREAMHANDLERDATA   mmioFOURCC('s', 't', 'r', 'd')
  30 #define ckidSTREAMNAME          mmioFOURCC('s', 't', 'r', 'n')
  31
  32 #define listtypeAVIMOVIE        mmioFOURCC('m', 'o', 'v', 'i')
  33 #define listtypeAVIRECORD       mmioFOURCC('r', 'e', 'c', ' ')
  34
  35 #define ckidAVINEWINDEX         mmioFOURCC('i', 'd', 'x', '1')
  36
  37 /*
  38 ** Stream types for the <fccType> field of the stream header.
  39 */
  40 #define streamtypeVIDEO         mmioFOURCC('v', 'i', 'd', 's')
  41 #define streamtypeAUDIO         mmioFOURCC('a', 'u', 'd', 's')
  42 #define streamtypeMIDI          mmioFOURCC('m', 'i', 'd', 's')
  43 #define streamtypeTEXT          mmioFOURCC('t', 'x', 't', 's')
  44
  45 /* Basic chunk types */
  46 #define cktypeDIBbits           aviTWOCC('d', 'b')
  47 #define cktypeDIBcompressed     aviTWOCC('d', 'c')
  48 #define cktypePALchange         aviTWOCC('p', 'c')
  49 #define cktypeWAVEbytes         aviTWOCC('w', 'b')
  50
  51 /* Chunk id to use for extra chunks for padding. */
  52 #define ckidAVIPADDING          mmioFOURCC('J', 'U', 'N', 'K')
  53
  54 /* flags for use in <dwFlags> in AVIFileHdr */
  55 #define AVIF_HASINDEX           0x00000010      // Index at end of file?
  56 #define AVIF_MUSTUSEINDEX       0x00000020
  57 #define AVIF_ISINTERLEAVED      0x00000100
  58 #define AVIF_TRUSTCKTYPE        0x00000800      // Use CKType to find key frames?
  59 #define AVIF_WASCAPTUREFILE     0x00010000
  60 #define AVIF_COPYRIGHTED        0x00020000
  61
  62 typedef struct
  63 {
  64     uint32_t            dwMicroSecPerFrame;     // frame display rate (or 0L)
  65     uint32_t            dwMaxBytesPerSec;       // max. transfer rate
  66     uint32_t            dwPaddingGranularity;   // pad to multiples of this
  67                                                 // size; normally 2K.
  68     uint32_t            dwFlags;                // the ever-present flags
  69     uint32_t            dwTotalFrames;          // # frames in file
  70     uint32_t            dwInitialFrames;
  71     uint32_t            dwStreams;
  72     uint32_t            dwSuggestedBufferSize;
  73
  74     uint32_t            dwWidth;
  75     uint32_t            dwHeight;
  76
  77     uint32_t            dwReserved[4];
  78 } MainAVIHeader;
  79
  80 typedef struct rectangle_t {
  81     short  left;
  82     short  top;
  83     short  right;
  84     short  bottom;
  85 } rectangle_t;
  86
  87 typedef struct {
  88     uint32_t            fccType;
  89     uint32_t            fccHandler;
  90     uint32_t            dwFlags;        /* Contains AVITF_* flags */
  91     uint16_t            wPriority;
  92     uint16_t            wLanguage;
  93     uint32_t            dwInitialFrames;
  94     uint32_t            dwScale;
  95     uint32_t            dwRate; /* dwRate / dwScale == samples/second */
  96     uint32_t            dwStart;
  97     uint32_t            dwLength; /* In units above... */
  98     uint32_t            dwSuggestedBufferSize;
  99     uint32_t            dwQuality;
 100     uint32_t            dwSampleSize;
 101     rectangle_t         rcFrame;
 102 } AVIStreamHeader;
 103
 104 /* Flags for index */
 105 #define AVIIF_LIST          0x00000001L // chunk is a 'LIST'
 106 #define AVIIF_KEYFRAME      0x00000010L // this frame is a key frame.
 107
 108 #define AVIIF_NOTIME        0x00000100L // this frame doesn't take any time
 109 #define AVIIF_COMPUSE       0x0FFF0000L // these bits are for compressor use
 110
 111 #define FOURCC_RIFF     mmioFOURCC('R', 'I', 'F', 'F')
 112 #define FOURCC_LIST     mmioFOURCC('L', 'I', 'S', 'T')
 113
 114 typedef struct
 115 {
 116     uint32_t            ckid;
 117     uint32_t            dwFlags;
 118     uint32_t            dwChunkOffset;          // Position of chunk
 119     uint32_t            dwChunkLength;          // Length of chunk
 120 } AVIINDEXENTRY;
 121
 122
 123 typedef struct avisuperindex_entry {
 124     uint64_t qwOffset;           // absolute file offset
 125     uint32_t dwSize;             // size of index chunk at this offset
 126     uint32_t dwDuration;         // time span in stream ticks
 127 } avisuperindex_entry;
 128
 129 typedef struct avistdindex_entry {
 130     uint32_t dwOffset;           // qwBaseOffset + this is absolute file offset
 131     uint32_t dwSize;             // bit 31 is set if this is NOT a keyframe
 132 } avistdindex_entry;
 133
 134 // Standard index
 135 typedef struct __attribute__((packed)) avistdindex_chunk {
 136     char           fcc[4];       // ix##
 137     uint32_t  dwSize;            // size of this chunk
 138     uint16_t wLongsPerEntry;     // must be sizeof(aIndex[0])/sizeof(DWORD)
 139     uint8_t  bIndexSubType;      // must be 0
 140     uint8_t  bIndexType;         // must be AVI_INDEX_OF_CHUNKS
 141     uint32_t  nEntriesInUse;     // first unused entry
 142     char           dwChunkId[4]; // '##dc' or '##db' or '##wb' etc..
 143     uint64_t qwBaseOffset;       // all dwOffsets in aIndex array are relative to this
 144     uint32_t  dwReserved3;       // must be 0
 145     avistdindex_entry *aIndex;   // the actual frames
 146 } avistdindex_chunk;
 147
 148
 149 // Base Index Form 'indx'
 150 typedef struct avisuperindex_chunk {
 151     char           fcc[4];
 152     uint32_t  dwSize;                // size of this chunk
 153     uint16_t wLongsPerEntry;         // size of each entry in aIndex array (must be 4*4 for us)
 154     uint8_t  bIndexSubType;          // future use. must be 0
 155     uint8_t  bIndexType;             // one of AVI_INDEX_* codes
 156     uint32_t  nEntriesInUse;         // index of first unused member in aIndex array
 157     char       dwChunkId[4];         // fcc of what is indexed
 158     uint32_t  dwReserved[3];         // meaning differs for each index type/subtype.
 159                                      // 0 if unused
 160     avisuperindex_entry *aIndex;     // position of ix## chunks
 161     avistdindex_chunk *stdidx;       // the actual std indices
 162 } avisuperindex_chunk;
 163
 164 typedef struct {
 165         uint32_t CompressedBMHeight;
 166         uint32_t CompressedBMWidth;
 167         uint32_t ValidBMHeight;
 168         uint32_t ValidBMWidth;
 169         uint32_t ValidBMXOffset;
 170         uint32_t ValidBMYOffset;
 171         uint32_t VideoXOffsetInT;
 172         uint32_t VideoYValidStartLine;
 173 } VIDEO_FIELD_DESC;
 174
 175 typedef struct {
 176         uint32_t VideoFormatToken;
 177         uint32_t VideoStandard;
 178         uint32_t dwVerticalRefreshRate;
 179         uint32_t dwHTotalInT;
 180         uint32_t dwVTotalInLines;
 181         uint32_t dwFrameAspectRatio;
 182         uint32_t dwFrameWidthInPixels;
 183         uint32_t dwFrameHeightInLines;
 184         uint32_t nbFieldPerFrame;
 185         VIDEO_FIELD_DESC FieldInfo[2];
 186 } VideoPropHeader;
 187
 188 typedef enum {
 189         FORMAT_UNKNOWN,
 190         FORMAT_PAL_SQUARE,
 191         FORMAT_PAL_CCIR_601,
 192         FORMAT_NTSC_SQUARE,
 193         FORMAT_NTSC_CCIR_601,
 194 } VIDEO_FORMAT;
 195
 196 typedef enum {
 197         STANDARD_UNKNOWN,
 198         STANDARD_PAL,
 199         STANDARD_NTSC,
 200         STANDARD_SECAM
 201 } VIDEO_STANDARD;
 202
 203 #define MAKE_AVI_ASPECT(a, b) (((a)<<16)|(b))
 204 #define GET_AVI_ASPECT(a) ((float)((a)>>16)/(float)((a)&0xffff))
 205
 206 /*
 207  * Some macros to swap little endian structures read from an AVI file
 208  * into machine endian format
 209  */
 210 #ifdef WORDS_BIGENDIAN
 211 #define le2me_MainAVIHeader(h) {                                        \
 212     (h)->dwMicroSecPerFrame = le2me_32((h)->dwMicroSecPerFrame);        \
 213     (h)->dwMaxBytesPerSec = le2me_32((h)->dwMaxBytesPerSec);            \
 214     (h)->dwPaddingGranularity = le2me_32((h)->dwPaddingGranularity);    \
 215     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
 216     (h)->dwTotalFrames = le2me_32((h)->dwTotalFrames);                  \
 217     (h)->dwInitialFrames = le2me_32((h)->dwInitialFrames);              \
 218     (h)->dwStreams = le2me_32((h)->dwStreams);                          \
 219     (h)->dwSuggestedBufferSize = le2me_32((h)->dwSuggestedBufferSize);  \
 220     (h)->dwWidth = le2me_32((h)->dwWidth);                              \
 221     (h)->dwHeight = le2me_32((h)->dwHeight);                            \
 222 }
 223
 224 #define le2me_AVIStreamHeader(h) {                                      \
 225     (h)->fccType = le2me_32((h)->fccType);                              \
 226     (h)->fccHandler = le2me_32((h)->fccHandler);                        \
 227     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
 228     (h)->wPriority = le2me_16((h)->wPriority);                          \
 229     (h)->wLanguage = le2me_16((h)->wLanguage);                          \
 230     (h)->dwInitialFrames = le2me_32((h)->dwInitialFrames);              \
 231     (h)->dwScale = le2me_32((h)->dwScale);                              \
 232     (h)->dwRate = le2me_32((h)->dwRate);                                \
 233     (h)->dwStart = le2me_32((h)->dwStart);                              \
 234     (h)->dwLength = le2me_32((h)->dwLength);                            \
 235     (h)->dwSuggestedBufferSize = le2me_32((h)->dwSuggestedBufferSize);  \
 236     (h)->dwQuality = le2me_32((h)->dwQuality);                          \
 237     (h)->dwSampleSize = le2me_32((h)->dwSampleSize);                    \
 238     le2me_RECT(&(h)->rcFrame);                                          \
 239 }
 240 #define le2me_RECT(h) {                                                 \
 241     (h)->left = le2me_16((h)->left);                                    \
 242     (h)->top = le2me_16((h)->top);                                      \
 243     (h)->right = le2me_16((h)->right);                                  \
 244     (h)->bottom = le2me_16((h)->bottom);                                \
 245 }
 246 #define le2me_BITMAPINFOHEADER(h) {                                     \
 247     (h)->biSize = le2me_32((h)->biSize);                                \
 248     (h)->biWidth = le2me_32((h)->biWidth);                              \
 249     (h)->biHeight = le2me_32((h)->biHeight);                            \
 250     (h)->biPlanes = le2me_16((h)->biPlanes);                            \
 251     (h)->biBitCount = le2me_16((h)->biBitCount);                        \
 252     (h)->biCompression = le2me_32((h)->biCompression);                  \
 253     (h)->biSizeImage = le2me_32((h)->biSizeImage);                      \
 254     (h)->biXPelsPerMeter = le2me_32((h)->biXPelsPerMeter);              \
 255     (h)->biYPelsPerMeter = le2me_32((h)->biYPelsPerMeter);              \
 256     (h)->biClrUsed = le2me_32((h)->biClrUsed);                          \
 257     (h)->biClrImportant = le2me_32((h)->biClrImportant);                \
 258 }
 259 #define le2me_WAVEFORMATEX(h) {                                         \
 260     (h)->wFormatTag = le2me_16((h)->wFormatTag);                        \
 261     (h)->nChannels = le2me_16((h)->nChannels);                          \
 262     (h)->nSamplesPerSec = le2me_32((h)->nSamplesPerSec);                \
 263     (h)->nAvgBytesPerSec = le2me_32((h)->nAvgBytesPerSec);              \
 264     (h)->nBlockAlign = le2me_16((h)->nBlockAlign);                      \
 265     (h)->wBitsPerSample = le2me_16((h)->wBitsPerSample);                \
 266     (h)->cbSize = le2me_16((h)->cbSize);                                \
 267 }
 268 #define le2me_AVIINDEXENTRY(h) {                                        \
 269     (h)->ckid = le2me_32((h)->ckid);                                    \
 270     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
 271     (h)->dwChunkOffset = le2me_32((h)->dwChunkOffset);                  \
 272     (h)->dwChunkLength = le2me_32((h)->dwChunkLength);                  \
 273 }
 274 #define le2me_AVISTDIDXCHUNK(h) {\
 275     char c; \
 276     c = (h)->fcc[0]; (h)->fcc[0] = (h)->fcc[3]; (h)->fcc[3] = c;  \
 277     c = (h)->fcc[1]; (h)->fcc[1] = (h)->fcc[2]; (h)->fcc[2] = c;  \
 278     (h)->dwSize = le2me_32((h)->dwSize);  \
 279     (h)->wLongsPerEntry = le2me_16((h)->wLongsPerEntry);  \
 280     (h)->nEntriesInUse = le2me_32((h)->nEntriesInUse);  \
 281     c = (h)->dwChunkId[0]; (h)->dwChunkId[0] = (h)->dwChunkId[3]; (h)->dwChunkId[3] = c;  \
 282     c = (h)->dwChunkId[1]; (h)->dwChunkId[1] = (h)->dwChunkId[2]; (h)->dwChunkId[2] = c;  \
 283     (h)->qwBaseOffset = le2me_64((h)->qwBaseOffset);  \
 284     (h)->dwReserved3 = le2me_32((h)->dwReserved3);  \
 285 }
 286 #define le2me_AVISTDIDXENTRY(h)  {\
 287     (h)->dwOffset = le2me_32((h)->dwOffset);  \
 288     (h)->dwSize = le2me_32((h)->dwSize);  \
 289 }
 290 #define le2me_VideoPropHeader(h) {                                      \
 291     (h)->VideoFormatToken = le2me_32((h)->VideoFormatToken);            \
 292     (h)->VideoStandard = le2me_32((h)->VideoStandard);                  \
 293     (h)->dwVerticalRefreshRate = le2me_32((h)->dwVerticalRefreshRate);  \
 294     (h)->dwHTotalInT = le2me_32((h)->dwHTotalInT);                      \
 295     (h)->dwVTotalInLines = le2me_32((h)->dwVTotalInLines);              \
 296     (h)->dwFrameAspectRatio = le2me_32((h)->dwFrameAspectRatio);        \
 297     (h)->dwFrameWidthInPixels = le2me_32((h)->dwFrameWidthInPixels);    \
 298     (h)->dwFrameHeightInLines = le2me_32((h)->dwFrameHeightInLines);    \
 299     (h)->nbFieldPerFrame = le2me_32((h)->nbFieldPerFrame);              \
 300 }
 301 #define le2me_VIDEO_FIELD_DESC(h) {                                     \
 302     (h)->CompressedBMHeight = le2me_32((h)->CompressedBMHeight);        \
 303     (h)->CompressedBMWidth = le2me_32((h)->CompressedBMWidth);          \
 304     (h)->ValidBMHeight = le2me_32((h)->ValidBMHeight);                  \
 305     (h)->ValidBMWidth = le2me_32((h)->ValidBMWidth);                    \
 306     (h)->ValidBMXOffset = le2me_32((h)->ValidBMXOffset);                \
 307     (h)->ValidBMYOffset = le2me_32((h)->ValidBMYOffset);                \
 308     (h)->VideoXOffsetInT = le2me_32((h)->VideoXOffsetInT);              \
 309     (h)->VideoYValidStartLine = le2me_32((h)->VideoYValidStartLine);    \
 310 }
 311
 312 #else
 313 #define le2me_MainAVIHeader(h)      /**/
 314 #define le2me_AVIStreamHeader(h)    /**/
 315 #define le2me_RECT(h)               /**/
 316 #define le2me_BITMAPINFOHEADER(h)   /**/
 317 #define le2me_WAVEFORMATEX(h)       /**/
 318 #define le2me_AVIINDEXENTRY(h)      /**/
 319 #define le2me_AVISTDIDXCHUNK(h)     /**/
 320 #define le2me_AVISTDIDXENTRY(h)     /**/
 321 #define le2me_VideoPropHeader(h)    /**/
 322 #define le2me_VIDEO_FIELD_DESC(h)   /**/
 323 #endif
 324
 325 typedef struct {
 326   // index stuff:
 327   void* idx;
 328   int idx_size;
 329   off_t idx_pos;
 330   off_t idx_pos_a;
 331   off_t idx_pos_v;
 332   off_t idx_offset;  // ennyit kell hozzaadni az index offset ertekekhez
 333   // bps-based PTS stuff:
 334   int video_pack_no;
 335   int audio_block_size;
 336   off_t audio_block_no;
 337   // interleaved PTS stuff:
 338   int skip_video_frames;
 339   int audio_streams;
 340   float avi_audio_pts;
 341   float avi_video_pts;
 342   float pts_correction;
 343   unsigned int pts_corr_bytes;
 344   unsigned char pts_corrected;
 345   unsigned char pts_has_video;
 346   unsigned int numberofframes;
 347   avisuperindex_chunk *suidx;
 348   int suidx_size;
 349   int isodml;
 350 } avi_priv_t;
 351
 352 #define AVI_PRIV ((avi_priv_t*)(demuxer->priv))
 353
 354 #define AVI_IDX_OFFSET(x) ((((uint64_t)(x)->dwFlags&0xffff0000)<<16)+(x)->dwChunkOffset)
 355
 356 #endif /* AVIHEADER_H */