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16440 changed files with 4239995 additions and 2 deletions
283
Src/Plugins/Input/in_dshow/header_avi.cpp
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283
Src/Plugins/Input/in_dshow/header_avi.cpp
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#include <windows.h>
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#include "header_avi.h"
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#include <mmsystem.h>
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#include <bfc/platform/types.h>
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#pragma pack(1)
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typedef struct
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{
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DWORD dwMicroSecPerFrame; // frame display rate (or 0L)
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DWORD dwMaxBytesPerSec; // max. transfer rate
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DWORD dwPaddingGranularity; // pad to multiples of this
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// size; normally 2K.
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DWORD dwFlags; // the ever-present flags
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DWORD dwTotalFrames; // # frames in file
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DWORD dwInitialFrames;
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DWORD dwStreams;
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DWORD dwSuggestedBufferSize;
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DWORD dwWidth;
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DWORD dwHeight;
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DWORD dwReserved[4];
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}
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MainAVIHeader;
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typedef struct
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{
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FOURCC fccType;
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FOURCC fccHandler;
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DWORD dwFlags; /* Contains AVITF_* flags */
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WORD wPriority;
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WORD wLanguage;
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DWORD dwInitialFrames;
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DWORD dwScale;
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DWORD dwRate; /* dwRate / dwScale == samples/second */
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DWORD dwStart;
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DWORD dwLength; /* In units above... */
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DWORD dwSuggestedBufferSize;
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DWORD dwQuality;
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DWORD dwSampleSize;
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RECT rcFrame;
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}
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AVIStreamHeader;
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#pragma pack()
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#ifndef mmioFOURCC
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#define mmioFOURCC( ch0, ch1, ch2, ch3 ) \
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( (long)(unsigned char)(ch0) | ( (long)(unsigned char)(ch1) << 8 ) | \
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( (long)(unsigned char)(ch2) << 16 ) | ( (long)(unsigned char)(ch3) << 24 ) )
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#endif /* mmioFOURCC */
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HeaderAvi::HeaderAvi(bool bAllowHttpConnection /* = false */)
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: bAllowHttp(bAllowHttpConnection), fh(INVALID_HANDLE_VALUE)
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{}
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HeaderAvi::~HeaderAvi()
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{}
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int HeaderAvi::getInfos(const wchar_t *filename, bool checkMetadata)
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{
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{
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fh = CreateFileW(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
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if (fh == INVALID_HANDLE_VALUE) return 0;
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}
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int riffid = read_dword();
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if (riffid != mmioFOURCC('R', 'I', 'F', 'F'))
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{
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myfclose();
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return 0;
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}
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unsigned __int32 filesize = read_dword();
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int aviid = read_dword();
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if (aviid != mmioFOURCC('A', 'V', 'I', ' '))
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{
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myfclose();
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return 0;
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}
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int last_fccType = 0;
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while (1)
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{
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int id = read_dword();
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if (!id) break;
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if (id == mmioFOURCC('L', 'I', 'S', 'T'))
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{
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unsigned __int32 len = read_dword() - 4;
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id = read_dword();
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switch (id)
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{
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case mmioFOURCC('m', 'o', 'v', 'i'):
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{
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// MOVI header
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//if (!checkMetadata) // might have metadata at the end of the file, so we gotta keep going
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//{
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myfclose();
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return 1;
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//}
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len = (len + 1) & (~1);
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myfseek(len, FILE_CURRENT);
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}
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break;
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case mmioFOURCC('I', 'N', 'F', 'O'):
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{
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if (!checkMetadata)
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{
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if (len)
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myfseek(len, FILE_CURRENT);
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break;
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}
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while (len)
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{
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int infoId = read_dword();
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unsigned __int32 infoSize = read_dword();
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unsigned __int32 chunksize = (infoSize + 1) & (~1);
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len -= (chunksize + 8);
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switch (infoId)
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{
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// TODO: IYER for year, but is it string or number?
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// TODO: ITRK for track, but is it string or number?
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case mmioFOURCC('I', 'C', 'O', 'M'):
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{
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composer = (wchar_t*)calloc(infoSize + 1, sizeof(wchar_t));
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composer[infoSize] = 0;
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myfread(composer, infoSize, 1);
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chunksize -= infoSize;
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}
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break;
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case mmioFOURCC('I', 'P', 'U', 'B'):
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{
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publisher = (wchar_t*)calloc(infoSize + 1, sizeof(wchar_t));
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publisher[infoSize] = 0;
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myfread(publisher, infoSize, 1);
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chunksize -= infoSize;
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}
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break;
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case mmioFOURCC('I', 'A', 'L', 'B'):
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{
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album = (wchar_t*)calloc(infoSize + 1, sizeof(wchar_t));
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album[infoSize] = 0;
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myfread(album, infoSize, 1);
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chunksize -= infoSize;
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}
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break;
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case mmioFOURCC('I', 'G', 'N', 'R'):
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{
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genre = (wchar_t*)calloc(infoSize + 1, sizeof(wchar_t));
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genre[infoSize] = 0;
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myfread(genre, infoSize, 1);
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chunksize -= infoSize;
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}
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break;
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case mmioFOURCC('I', 'C', 'M', 'T'):
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{
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comment = (wchar_t*)calloc(infoSize + 1, sizeof(wchar_t));
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comment[infoSize] = 0;
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myfread(comment, infoSize, 1);
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chunksize -= infoSize;
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}
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break;
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case mmioFOURCC('I', 'A', 'R', 'T'):
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{
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artist = (wchar_t*)calloc(infoSize + 1, sizeof(wchar_t));
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artist[infoSize] = 0;
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myfread(artist, infoSize, 1);
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chunksize -= infoSize;
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}
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break;
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case mmioFOURCC('I', 'N', 'A', 'M'):
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{
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title = (wchar_t*)calloc(infoSize + 1, sizeof(wchar_t));
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title[infoSize] = 0;
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myfread(title, infoSize, 1);
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chunksize -= infoSize;
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}
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break;
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}
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if (chunksize > 0) myfseek(chunksize, FILE_CURRENT);
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}
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}
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break;
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}
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continue;
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}
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unsigned __int32 size2 = read_dword();
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size_t chunksize = (size2 + 1) & (~1);
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switch (id)
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{
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case mmioFOURCC('a', 'v', 'i', 'h'):
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{
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MainAVIHeader ah;
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size_t l = min(size2, sizeof(ah));
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myfread(&ah, l, 1);
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chunksize -= l;
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video_h = ah.dwHeight; video_w = ah.dwWidth;
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if (video_h && video_w) has_video = true;
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}
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break;
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case mmioFOURCC('s', 't', 'r', 'h'):
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{
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AVIStreamHeader ash;
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size_t l = min(size2, sizeof(ash));
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myfread(&ash, l, 1);
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chunksize -= l;
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last_fccType = ash.fccType;
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if (last_fccType == mmioFOURCC('v', 'i', 'd', 's'))
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{
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float frametime = (float)ash.dwScale / ((float)ash.dwRate / 1000);
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length = (int)((float)ash.dwLength * frametime);
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}
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}
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break;
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case mmioFOURCC('s', 't', 'r', 'f'):
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{
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if (last_fccType == mmioFOURCC('v', 'i', 'd', 's'))
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{
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}
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else if (last_fccType == mmioFOURCC('a', 'u', 'd', 's'))
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{
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WAVEFORMATEX wfe;
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size_t l = min(chunksize, sizeof(wfe));
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myfread(&wfe, sizeof(wfe), 1);
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audio_bps = wfe.wBitsPerSample;
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audio_srate = wfe.nSamplesPerSec;
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audio_nch = wfe.nChannels;
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if (!audio_bps) audio_bps = 16;
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has_audio = true;
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chunksize -= l;
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}
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}
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break;
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}
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if (chunksize > 0) myfseek((long)chunksize, FILE_CURRENT);
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}
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myfclose();
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return 1;
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}
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size_t HeaderAvi::myfread(void *buffer, size_t size, size_t count)
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{
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DWORD bytesRead = 0;
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ReadFile(fh, buffer, (DWORD)(size*count), &bytesRead, NULL);
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return bytesRead;
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}
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int HeaderAvi::myfclose()
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{
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return CloseHandle(fh);
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}
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// Note; Only supports SEEK_CUR for http (which is what is used)
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int HeaderAvi::myfseek(long offset, DWORD origin)
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{
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return SetFilePointer(fh, offset, 0, origin);
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}
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/* TODO:
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__int64 myFileSeek (HANDLE hf, __int64 distance, DWORD MoveMethod)
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{
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LARGE_INTEGER li;
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li.QuadPart = distance;
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li.LowPart = SetFilePointer (hf, li.LowPart, &li.HighPart, MoveMethod);
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if (li.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR)
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{
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li.QuadPart = -1;
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}
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return li.QuadPart;
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}
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*/
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