libmpdemux/aviheader.h

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef MPLAYER_AVIHEADER_H
  20 #define MPLAYER_AVIHEADER_H
  21
  22 #include <sys/types.h>
  23 #include <stdint.h>
  24 #include "config.h"     /* get correct definition of HAVE_BIGENDIAN */
  25 #include "libavutil/common.h"
  26 #include "mpbswap.h"
  27
  28 #ifndef mmioFOURCC
  29 #define mmioFOURCC( ch0, ch1, ch2, ch3 )                                \
  30                 ( (uint32_t)(uint8_t)(ch0) | ( (uint32_t)(uint8_t)(ch1) << 8 ) |        \
  31                 ( (uint32_t)(uint8_t)(ch2) << 16 ) | ( (uint32_t)(uint8_t)(ch3) << 24 ) )
  32 #endif
  33
  34 /* Macro to make a TWOCC out of two characters */
  35 #ifndef aviTWOCC
  36 #define aviTWOCC(ch0, ch1) ((uint16_t)(uint8_t)(ch0) | ((uint16_t)(uint8_t)(ch1) << 8))
  37 #endif
  38
  39 //typedef uint16_t TWOCC;
  40 //typedef uint32_t FOURCC;
  41
  42 /* form types, list types, and chunk types */
  43 #define formtypeAVI             mmioFOURCC('A', 'V', 'I', ' ')
  44 #define listtypeAVIHEADER       mmioFOURCC('h', 'd', 'r', 'l')
  45 #define ckidAVIMAINHDR          mmioFOURCC('a', 'v', 'i', 'h')
  46 #define listtypeSTREAMHEADER    mmioFOURCC('s', 't', 'r', 'l')
  47 #define ckidSTREAMHEADER        mmioFOURCC('s', 't', 'r', 'h')
  48 #define ckidSTREAMFORMAT        mmioFOURCC('s', 't', 'r', 'f')
  49 #define ckidSTREAMHANDLERDATA   mmioFOURCC('s', 't', 'r', 'd')
  50 #define ckidSTREAMNAME          mmioFOURCC('s', 't', 'r', 'n')
  51
  52 #define listtypeAVIMOVIE        mmioFOURCC('m', 'o', 'v', 'i')
  53 #define listtypeAVIRECORD       mmioFOURCC('r', 'e', 'c', ' ')
  54
  55 #define ckidAVINEWINDEX         mmioFOURCC('i', 'd', 'x', '1')
  56
  57 /*
  58 ** Stream types for the <fccType> field of the stream header.
  59 */
  60 #define streamtypeVIDEO         mmioFOURCC('v', 'i', 'd', 's')
  61 #define streamtypeAUDIO         mmioFOURCC('a', 'u', 'd', 's')
  62 #define streamtypeMIDI          mmioFOURCC('m', 'i', 'd', 's')
  63 #define streamtypeTEXT          mmioFOURCC('t', 'x', 't', 's')
  64
  65 /* Basic chunk types */
  66 #define cktypeDIBbits           aviTWOCC('d', 'b')
  67 #define cktypeDIBcompressed     aviTWOCC('d', 'c')
  68 #define cktypePALchange         aviTWOCC('p', 'c')
  69 #define cktypeWAVEbytes         aviTWOCC('w', 'b')
  70
  71 /* Chunk id to use for extra chunks for padding. */
  72 #define ckidAVIPADDING          mmioFOURCC('J', 'U', 'N', 'K')
  73
  74 /* flags for use in <dwFlags> in AVIFileHdr */
  75 #define AVIF_HASINDEX           0x00000010      // Index at end of file?
  76 #define AVIF_MUSTUSEINDEX       0x00000020
  77 #define AVIF_ISINTERLEAVED      0x00000100
  78 #define AVIF_TRUSTCKTYPE        0x00000800      // Use CKType to find key frames?
  79 #define AVIF_WASCAPTUREFILE     0x00010000
  80 #define AVIF_COPYRIGHTED        0x00020000
  81
  82 typedef struct
  83 {
  84     uint32_t            dwMicroSecPerFrame;     // frame display rate (or 0L)
  85     uint32_t            dwMaxBytesPerSec;       // max. transfer rate
  86     uint32_t            dwPaddingGranularity;   // pad to multiples of this
  87                                                 // size; normally 2K.
  88     uint32_t            dwFlags;                // the ever-present flags
  89     uint32_t            dwTotalFrames;          // # frames in file
  90     uint32_t            dwInitialFrames;
  91     uint32_t            dwStreams;
  92     uint32_t            dwSuggestedBufferSize;
  93
  94     uint32_t            dwWidth;
  95     uint32_t            dwHeight;
  96
  97     uint32_t            dwReserved[4];
  98 } MainAVIHeader;
  99
 100 typedef struct rectangle_t {
 101     short  left;
 102     short  top;
 103     short  right;
 104     short  bottom;
 105 } rectangle_t;
 106
 107 typedef struct {
 108     uint32_t            fccType;
 109     uint32_t            fccHandler;
 110     uint32_t            dwFlags;        /* Contains AVITF_* flags */
 111     uint16_t            wPriority;
 112     uint16_t            wLanguage;
 113     uint32_t            dwInitialFrames;
 114     uint32_t            dwScale;
 115     uint32_t            dwRate; /* dwRate / dwScale == samples/second */
 116     uint32_t            dwStart;
 117     uint32_t            dwLength; /* In units above... */
 118     uint32_t            dwSuggestedBufferSize;
 119     uint32_t            dwQuality;
 120     uint32_t            dwSampleSize;
 121     rectangle_t         rcFrame;
 122 } AVIStreamHeader;
 123
 124 /* Flags for index */
 125 #define AVIIF_LIST          0x00000001L // chunk is a 'LIST'
 126 #define AVIIF_KEYFRAME      0x00000010L // this frame is a key frame.
 127
 128 #define AVIIF_NOTIME        0x00000100L // this frame doesn't take any time
 129 #define AVIIF_COMPUSE       0x0FFF0000L // these bits are for compressor use
 130
 131 #ifndef FOURCC_RIFF
 132 #define FOURCC_RIFF     mmioFOURCC('R', 'I', 'F', 'F')
 133 #define FOURCC_LIST     mmioFOURCC('L', 'I', 'S', 'T')
 134 #endif
 135
 136 typedef struct
 137 {
 138     uint32_t            ckid;
 139     uint32_t            dwFlags;
 140     uint32_t            dwChunkOffset;          // Position of chunk
 141     uint32_t            dwChunkLength;          // Length of chunk
 142 } AVIINDEXENTRY;
 143
 144
 145 typedef struct avisuperindex_entry {
 146     uint64_t qwOffset;           // absolute file offset
 147     uint32_t dwSize;             // size of index chunk at this offset
 148     uint32_t dwDuration;         // time span in stream ticks
 149 } avisuperindex_entry;
 150
 151 typedef struct avistdindex_entry {
 152     uint32_t dwOffset;           // qwBaseOffset + this is absolute file offset
 153     uint32_t dwSize;             // bit 31 is set if this is NOT a keyframe
 154 } avistdindex_entry;
 155
 156 // Standard index
 157 typedef struct __attribute__((packed)) avistdindex_chunk {
 158     char           fcc[4];       // ix##
 159     uint32_t  dwSize;            // size of this chunk
 160     uint16_t wLongsPerEntry;     // must be sizeof(aIndex[0])/sizeof(DWORD)
 161     uint8_t  bIndexSubType;      // must be 0
 162     uint8_t  bIndexType;         // must be AVI_INDEX_OF_CHUNKS
 163     uint32_t  nEntriesInUse;     // first unused entry
 164     char           dwChunkId[4]; // '##dc' or '##db' or '##wb' etc..
 165     uint64_t qwBaseOffset;       // all dwOffsets in aIndex array are relative to this
 166     uint32_t  dwReserved3;       // must be 0
 167     avistdindex_entry *aIndex;   // the actual frames
 168 } avistdindex_chunk;
 169
 170
 171 // Base Index Form 'indx'
 172 typedef struct avisuperindex_chunk {
 173     char           fcc[4];
 174     uint32_t  dwSize;                // size of this chunk
 175     uint16_t wLongsPerEntry;         // size of each entry in aIndex array (must be 4*4 for us)
 176     uint8_t  bIndexSubType;          // future use. must be 0
 177     uint8_t  bIndexType;             // one of AVI_INDEX_* codes
 178     uint32_t  nEntriesInUse;         // index of first unused member in aIndex array
 179     char       dwChunkId[4];         // fcc of what is indexed
 180     uint32_t  dwReserved[3];         // meaning differs for each index type/subtype.
 181                                      // 0 if unused
 182     avisuperindex_entry *aIndex;     // position of ix## chunks
 183     avistdindex_chunk *stdidx;       // the actual std indices
 184 } avisuperindex_chunk;
 185
 186 typedef struct {
 187         uint32_t CompressedBMHeight;
 188         uint32_t CompressedBMWidth;
 189         uint32_t ValidBMHeight;
 190         uint32_t ValidBMWidth;
 191         uint32_t ValidBMXOffset;
 192         uint32_t ValidBMYOffset;
 193         uint32_t VideoXOffsetInT;
 194         uint32_t VideoYValidStartLine;
 195 } VIDEO_FIELD_DESC;
 196
 197 typedef struct {
 198         uint32_t VideoFormatToken;
 199         uint32_t VideoStandard;
 200         uint32_t dwVerticalRefreshRate;
 201         uint32_t dwHTotalInT;
 202         uint32_t dwVTotalInLines;
 203         uint32_t dwFrameAspectRatio;
 204         uint32_t dwFrameWidthInPixels;
 205         uint32_t dwFrameHeightInLines;
 206         uint32_t nbFieldPerFrame;
 207         VIDEO_FIELD_DESC FieldInfo[2];
 208 } VideoPropHeader;
 209
 210 typedef enum {
 211         FORMAT_UNKNOWN,
 212         FORMAT_PAL_SQUARE,
 213         FORMAT_PAL_CCIR_601,
 214         FORMAT_NTSC_SQUARE,
 215         FORMAT_NTSC_CCIR_601,
 216 } VIDEO_FORMAT;
 217
 218 typedef enum {
 219         STANDARD_UNKNOWN,
 220         STANDARD_PAL,
 221         STANDARD_NTSC,
 222         STANDARD_SECAM
 223 } VIDEO_STANDARD;
 224
 225 #define MAKE_AVI_ASPECT(a, b) (((a)<<16)|(b))
 226 #define GET_AVI_ASPECT(a) ((float)((a)>>16)/(float)((a)&0xffff))
 227
 228 /*
 229  * Some macros to swap little endian structures read from an AVI file
 230  * into machine endian format
 231  */
 232 #if HAVE_BIGENDIAN
 233 #define le2me_MainAVIHeader(h) {                                        \
 234     (h)->dwMicroSecPerFrame = le2me_32((h)->dwMicroSecPerFrame);        \
 235     (h)->dwMaxBytesPerSec = le2me_32((h)->dwMaxBytesPerSec);            \
 236     (h)->dwPaddingGranularity = le2me_32((h)->dwPaddingGranularity);    \
 237     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
 238     (h)->dwTotalFrames = le2me_32((h)->dwTotalFrames);                  \
 239     (h)->dwInitialFrames = le2me_32((h)->dwInitialFrames);              \
 240     (h)->dwStreams = le2me_32((h)->dwStreams);                          \
 241     (h)->dwSuggestedBufferSize = le2me_32((h)->dwSuggestedBufferSize);  \
 242     (h)->dwWidth = le2me_32((h)->dwWidth);                              \
 243     (h)->dwHeight = le2me_32((h)->dwHeight);                            \
 244 }
 245
 246 #define le2me_AVIStreamHeader(h) {                                      \
 247     (h)->fccType = le2me_32((h)->fccType);                              \
 248     (h)->fccHandler = le2me_32((h)->fccHandler);                        \
 249     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
 250     (h)->wPriority = le2me_16((h)->wPriority);                          \
 251     (h)->wLanguage = le2me_16((h)->wLanguage);                          \
 252     (h)->dwInitialFrames = le2me_32((h)->dwInitialFrames);              \
 253     (h)->dwScale = le2me_32((h)->dwScale);                              \
 254     (h)->dwRate = le2me_32((h)->dwRate);                                \
 255     (h)->dwStart = le2me_32((h)->dwStart);                              \
 256     (h)->dwLength = le2me_32((h)->dwLength);                            \
 257     (h)->dwSuggestedBufferSize = le2me_32((h)->dwSuggestedBufferSize);  \
 258     (h)->dwQuality = le2me_32((h)->dwQuality);                          \
 259     (h)->dwSampleSize = le2me_32((h)->dwSampleSize);                    \
 260     le2me_RECT(&(h)->rcFrame);                                          \
 261 }
 262 #define le2me_RECT(h) {                                                 \
 263     (h)->left = le2me_16((h)->left);                                    \
 264     (h)->top = le2me_16((h)->top);                                      \
 265     (h)->right = le2me_16((h)->right);                                  \
 266     (h)->bottom = le2me_16((h)->bottom);                                \
 267 }
 268 #define le2me_BITMAPINFOHEADER(h) {                                     \
 269     (h)->biSize = le2me_32((h)->biSize);                                \
 270     (h)->biWidth = le2me_32((h)->biWidth);                              \
 271     (h)->biHeight = le2me_32((h)->biHeight);                            \
 272     (h)->biPlanes = le2me_16((h)->biPlanes);                            \
 273     (h)->biBitCount = le2me_16((h)->biBitCount);                        \
 274     (h)->biCompression = le2me_32((h)->biCompression);                  \
 275     (h)->biSizeImage = le2me_32((h)->biSizeImage);                      \
 276     (h)->biXPelsPerMeter = le2me_32((h)->biXPelsPerMeter);              \
 277     (h)->biYPelsPerMeter = le2me_32((h)->biYPelsPerMeter);              \
 278     (h)->biClrUsed = le2me_32((h)->biClrUsed);                          \
 279     (h)->biClrImportant = le2me_32((h)->biClrImportant);                \
 280 }
 281 #define le2me_WAVEFORMATEX(h) {                                         \
 282     (h)->wFormatTag = le2me_16((h)->wFormatTag);                        \
 283     (h)->nChannels = le2me_16((h)->nChannels);                          \
 284     (h)->nSamplesPerSec = le2me_32((h)->nSamplesPerSec);                \
 285     (h)->nAvgBytesPerSec = le2me_32((h)->nAvgBytesPerSec);              \
 286     (h)->nBlockAlign = le2me_16((h)->nBlockAlign);                      \
 287     (h)->wBitsPerSample = le2me_16((h)->wBitsPerSample);                \
 288     (h)->cbSize = le2me_16((h)->cbSize);                                \
 289 }
 290 #define le2me_AVIINDEXENTRY(h) {                                        \
 291     (h)->ckid = le2me_32((h)->ckid);                                    \
 292     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
 293     (h)->dwChunkOffset = le2me_32((h)->dwChunkOffset);                  \
 294     (h)->dwChunkLength = le2me_32((h)->dwChunkLength);                  \
 295 }
 296 #define le2me_AVISTDIDXCHUNK(h) {\
 297     char c; \
 298     c = (h)->fcc[0]; (h)->fcc[0] = (h)->fcc[3]; (h)->fcc[3] = c;  \
 299     c = (h)->fcc[1]; (h)->fcc[1] = (h)->fcc[2]; (h)->fcc[2] = c;  \
 300     (h)->dwSize = le2me_32((h)->dwSize);  \
 301     (h)->wLongsPerEntry = le2me_16((h)->wLongsPerEntry);  \
 302     (h)->nEntriesInUse = le2me_32((h)->nEntriesInUse);  \
 303     c = (h)->dwChunkId[0]; (h)->dwChunkId[0] = (h)->dwChunkId[3]; (h)->dwChunkId[3] = c;  \
 304     c = (h)->dwChunkId[1]; (h)->dwChunkId[1] = (h)->dwChunkId[2]; (h)->dwChunkId[2] = c;  \
 305     (h)->qwBaseOffset = le2me_64((h)->qwBaseOffset);  \
 306     (h)->dwReserved3 = le2me_32((h)->dwReserved3);  \
 307 }
 308 #define le2me_AVISTDIDXENTRY(h)  {\
 309     (h)->dwOffset = le2me_32((h)->dwOffset);  \
 310     (h)->dwSize = le2me_32((h)->dwSize);  \
 311 }
 312 #define le2me_VideoPropHeader(h) {                                      \
 313     (h)->VideoFormatToken = le2me_32((h)->VideoFormatToken);            \
 314     (h)->VideoStandard = le2me_32((h)->VideoStandard);                  \
 315     (h)->dwVerticalRefreshRate = le2me_32((h)->dwVerticalRefreshRate);  \
 316     (h)->dwHTotalInT = le2me_32((h)->dwHTotalInT);                      \
 317     (h)->dwVTotalInLines = le2me_32((h)->dwVTotalInLines);              \
 318     (h)->dwFrameAspectRatio = le2me_32((h)->dwFrameAspectRatio);        \
 319     (h)->dwFrameWidthInPixels = le2me_32((h)->dwFrameWidthInPixels);    \
 320     (h)->dwFrameHeightInLines = le2me_32((h)->dwFrameHeightInLines);    \
 321     (h)->nbFieldPerFrame = le2me_32((h)->nbFieldPerFrame);              \
 322 }
 323 #define le2me_VIDEO_FIELD_DESC(h) {                                     \
 324     (h)->CompressedBMHeight = le2me_32((h)->CompressedBMHeight);        \
 325     (h)->CompressedBMWidth = le2me_32((h)->CompressedBMWidth);          \
 326     (h)->ValidBMHeight = le2me_32((h)->ValidBMHeight);                  \
 327     (h)->ValidBMWidth = le2me_32((h)->ValidBMWidth);                    \
 328     (h)->ValidBMXOffset = le2me_32((h)->ValidBMXOffset);                \
 329     (h)->ValidBMYOffset = le2me_32((h)->ValidBMYOffset);                \
 330     (h)->VideoXOffsetInT = le2me_32((h)->VideoXOffsetInT);              \
 331     (h)->VideoYValidStartLine = le2me_32((h)->VideoYValidStartLine);    \
 332 }
 333
 334 #else
 335 #define le2me_MainAVIHeader(h)      /**/
 336 #define le2me_AVIStreamHeader(h)    /**/
 337 #define le2me_RECT(h)               /**/
 338 #define le2me_BITMAPINFOHEADER(h)   /**/
 339 #define le2me_WAVEFORMATEX(h)       /**/
 340 #define le2me_AVIINDEXENTRY(h)      /**/
 341 #define le2me_AVISTDIDXCHUNK(h)     /**/
 342 #define le2me_AVISTDIDXENTRY(h)     /**/
 343 #define le2me_VideoPropHeader(h)    /**/
 344 #define le2me_VIDEO_FIELD_DESC(h)   /**/
 345 #endif
 346
 347 typedef struct {
 348   // index stuff:
 349   void* idx;
 350   int idx_size;
 351   off_t idx_pos;
 352   off_t idx_pos_a;
 353   off_t idx_pos_v;
 354   off_t idx_offset;  // ennyit kell hozzaadni az index offset ertekekhez
 355   // bps-based PTS stuff:
 356   int video_pack_no;
 357   int audio_block_size;
 358   off_t audio_block_no;
 359   // interleaved PTS stuff:
 360   int skip_video_frames;
 361   int audio_streams;
 362   float avi_audio_pts;
 363   float avi_video_pts;
 364   float pts_correction;
 365   unsigned int pts_corr_bytes;
 366   unsigned char pts_corrected;
 367   unsigned char pts_has_video;
 368   unsigned int numberofframes;
 369   avisuperindex_chunk *suidx;
 370   int suidx_size;
 371   int isodml;
 372   int warned_unaligned;
 373 } avi_priv_t;
 374
 375 #define AVI_PRIV ((avi_priv_t*)(demuxer->priv))
 376
 377 #define AVI_IDX_OFFSET(x) ((((uint64_t)(x)->dwFlags&0xffff0000)<<16)+(x)->dwChunkOffset)
 378
 379 struct demuxer;
 380 void read_avi_header(struct demuxer *demuxer, int index_mode);
 381
 382 #endif /* MPLAYER_AVIHEADER_H */