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733 lines
22 KiB
733 lines
22 KiB
/* |
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avi_win.c - playing AVI files (based on original AVIKit code, Win32 version) |
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Copyright (C) 2010 Uncle Mike |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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|
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#ifdef _WIN32 |
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#include "common.h" |
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#include "client.h" |
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#include <vfw.h> // video for windows |
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// msvfw32.dll exports |
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static HDRAWDIB (_stdcall *pDrawDibOpen)( void ); |
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static BOOL (_stdcall *pDrawDibClose)( HDRAWDIB hdd ); |
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static BOOL (_stdcall *pDrawDibDraw)( HDRAWDIB, HDC, int, int, int, int, LPBITMAPINFOHEADER, void*, int, int, int, int, uint ); |
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static dllfunc_t msvfw_funcs[] = |
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{ |
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{ "DrawDibOpen", (void **) &pDrawDibOpen }, |
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{ "DrawDibDraw", (void **) &pDrawDibDraw }, |
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{ "DrawDibClose", (void **) &pDrawDibClose }, |
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{ NULL, NULL } |
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}; |
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dll_info_t msvfw_dll = { "msvfw32.dll", msvfw_funcs, false }; |
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|
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// msacm32.dll exports |
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static MMRESULT (_stdcall *pacmStreamOpen)( LPHACMSTREAM, HACMDRIVER, LPWAVEFORMATEX, LPWAVEFORMATEX, LPWAVEFILTER, DWORD, DWORD, DWORD ); |
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static MMRESULT (_stdcall *pacmStreamPrepareHeader)( HACMSTREAM, LPACMSTREAMHEADER, DWORD ); |
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static MMRESULT (_stdcall *pacmStreamUnprepareHeader)( HACMSTREAM, LPACMSTREAMHEADER, DWORD ); |
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static MMRESULT (_stdcall *pacmStreamConvert)( HACMSTREAM, LPACMSTREAMHEADER, DWORD ); |
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static MMRESULT (_stdcall *pacmStreamSize)( HACMSTREAM, DWORD, LPDWORD, DWORD ); |
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static MMRESULT (_stdcall *pacmStreamClose)( HACMSTREAM, DWORD ); |
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static dllfunc_t msacm_funcs[] = |
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{ |
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{ "acmStreamOpen", (void **) &pacmStreamOpen }, |
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{ "acmStreamPrepareHeader", (void **) &pacmStreamPrepareHeader }, |
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{ "acmStreamUnprepareHeader", (void **) &pacmStreamUnprepareHeader }, |
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{ "acmStreamConvert", (void **) &pacmStreamConvert }, |
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{ "acmStreamSize", (void **) &pacmStreamSize }, |
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{ "acmStreamClose", (void **) &pacmStreamClose }, |
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{ NULL, NULL } |
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}; |
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dll_info_t msacm_dll = { "msacm32.dll", msacm_funcs, false }; |
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// avifil32.dll exports |
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static int (_stdcall *pAVIStreamInfo)( PAVISTREAM pavi, AVISTREAMINFO *psi, LONG lSize ); |
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static int (_stdcall *pAVIStreamRead)( PAVISTREAM pavi, LONG lStart, LONG lSamples, void *lpBuffer, LONG cbBuffer, LONG *plBytes, LONG *plSamples ); |
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static PGETFRAME (_stdcall *pAVIStreamGetFrameOpen)( PAVISTREAM pavi, LPBITMAPINFOHEADER lpbiWanted ); |
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static long (_stdcall *pAVIStreamTimeToSample)( PAVISTREAM pavi, LONG lTime ); |
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static void* (_stdcall *pAVIStreamGetFrame)( PGETFRAME pg, LONG lPos ); |
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static int (_stdcall *pAVIStreamGetFrameClose)( PGETFRAME pg ); |
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static dword (_stdcall *pAVIStreamRelease)( PAVISTREAM pavi ); |
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static int (_stdcall *pAVIFileOpen)( PAVIFILE *ppfile, LPCSTR szFile, UINT uMode, LPCLSID lpHandler ); |
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static int (_stdcall *pAVIFileGetStream)( PAVIFILE pfile, PAVISTREAM *ppavi, DWORD fccType, LONG lParam ); |
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static int (_stdcall *pAVIStreamReadFormat)( PAVISTREAM pavi, LONG lPos,LPVOID lpFormat, LONG *lpcbFormat ); |
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static long (_stdcall *pAVIStreamStart)( PAVISTREAM pavi ); |
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static dword (_stdcall *pAVIFileRelease)( PAVIFILE pfile ); |
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static void (_stdcall *pAVIFileInit)( void ); |
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static void (_stdcall *pAVIFileExit)( void ); |
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static dllfunc_t avifile_funcs[] = |
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{ |
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{ "AVIFileExit", (void **) &pAVIFileExit }, |
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{ "AVIFileGetStream", (void **) &pAVIFileGetStream }, |
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{ "AVIFileInit", (void **) &pAVIFileInit }, |
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{ "AVIFileOpenA", (void **) &pAVIFileOpen }, |
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{ "AVIFileRelease", (void **) &pAVIFileRelease }, |
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{ "AVIStreamGetFrame", (void **) &pAVIStreamGetFrame }, |
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{ "AVIStreamGetFrameClose", (void **) &pAVIStreamGetFrameClose }, |
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{ "AVIStreamGetFrameOpen", (void **) &pAVIStreamGetFrameOpen }, |
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{ "AVIStreamInfoA", (void **) &pAVIStreamInfo }, |
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{ "AVIStreamRead", (void **) &pAVIStreamRead }, |
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{ "AVIStreamReadFormat", (void **) &pAVIStreamReadFormat }, |
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{ "AVIStreamRelease", (void **) &pAVIStreamRelease }, |
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{ "AVIStreamStart", (void **) &pAVIStreamStart }, |
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{ "AVIStreamTimeToSample", (void **) &pAVIStreamTimeToSample }, |
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{ NULL, NULL } |
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}; |
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dll_info_t avifile_dll = { "avifil32.dll", avifile_funcs, false }; |
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typedef struct movie_state_s |
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{ |
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qboolean active; |
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qboolean quiet; // ignore error messages |
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PAVIFILE pfile; // avi file pointer |
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PAVISTREAM video_stream; // video stream pointer |
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PGETFRAME video_getframe; // pointer to getframe object for video stream |
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long video_frames; // total frames |
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long video_xres; // video stream resolution |
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long video_yres; |
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float video_fps; // video stream fps |
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PAVISTREAM audio_stream; // audio stream pointer |
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WAVEFORMAT *audio_header; // audio stream header |
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long audio_header_size; // WAVEFORMAT is returned for PCM data; WAVEFORMATEX for others |
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long audio_codec; // WAVE_FORMAT_PCM is oldstyle: anything else needs conversion |
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long audio_length; // in converted samples |
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long audio_bytes_per_sample; // guess. |
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// compressed audio specific data |
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dword cpa_blockalign; // block size to read |
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HACMSTREAM cpa_conversion_stream; |
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ACMSTREAMHEADER cpa_conversion_header; |
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byte *cpa_srcbuffer; // maintained buffer for raw data |
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byte *cpa_dstbuffer; |
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dword cpa_blocknum; // current block |
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dword cpa_blockpos; // read position in current block |
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dword cpa_blockoffset; // corresponding offset in bytes in the output stream |
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// for additional unpack Ms-RLE codecs etc |
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HDC hDC; // compatible DC |
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HDRAWDIB hDD; // DrawDib handler |
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HBITMAP hBitmap; // for DIB conversions |
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byte *pframe_data; // converted framedata |
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} movie_state_t; |
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static qboolean avi_initialized = false; |
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static movie_state_t avi[2]; |
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// Converts a compressed audio stream into uncompressed PCM. |
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qboolean AVI_ACMConvertAudio( movie_state_t *Avi ) |
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{ |
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WAVEFORMATEX dest_header, *sh, *dh; |
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AVISTREAMINFO stream_info; |
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dword dest_length; |
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short bits; |
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// WMA codecs, both versions - they simply don't work. |
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if( Avi->audio_header->wFormatTag == 0x160 || Avi->audio_header->wFormatTag == 0x161 ) |
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{ |
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if( !Avi->quiet ) |
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Con_Reportf( S_ERROR "ACM does not support this audio codec.\n" ); |
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return false; |
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} |
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// get audio stream info to work with |
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pAVIStreamInfo( Avi->audio_stream, &stream_info, sizeof( stream_info )); |
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if( Avi->audio_header_size < sizeof( WAVEFORMATEX )) |
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{ |
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if( !Avi->quiet ) |
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Con_Reportf( S_ERROR "ACM failed to open conversion stream.\n" ); |
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return false; |
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} |
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sh = (WAVEFORMATEX *)Avi->audio_header; |
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bits = 16; // predict state |
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// how much of this is actually required? |
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dest_header.wFormatTag = WAVE_FORMAT_PCM; // yay |
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dest_header.wBitsPerSample = bits; // 16bit |
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dest_header.nChannels = sh->nChannels; |
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dest_header.nSamplesPerSec = sh->nSamplesPerSec; // take straight from the source stream |
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dest_header.nAvgBytesPerSec = (bits >> 3) * sh->nChannels * sh->nSamplesPerSec; |
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dest_header.nBlockAlign = (bits >> 3) * sh->nChannels; |
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dest_header.cbSize = 0; // no more data. |
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dh = &dest_header; |
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// open the stream |
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if( pacmStreamOpen( &Avi->cpa_conversion_stream, NULL, sh, dh, NULL, 0, 0, 0 ) != MMSYSERR_NOERROR ) |
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{ |
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// try with 8 bit destination instead |
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bits = 8; |
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dest_header.wBitsPerSample = bits; // 8bit |
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dest_header.nAvgBytesPerSec = ( bits >> 3 ) * sh->nChannels * sh->nSamplesPerSec; |
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dest_header.nBlockAlign = ( bits >> 3 ) * sh->nChannels; // 1 sample at a time |
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if( pacmStreamOpen( &Avi->cpa_conversion_stream, NULL, sh, dh, NULL, 0, 0, 0 ) != MMSYSERR_NOERROR ) |
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{ |
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if( !Avi->quiet ) |
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Con_Reportf( S_ERROR "ACM failed to open conversion stream.\n" ); |
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return false; |
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} |
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} |
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Avi->cpa_blockalign = sh->nBlockAlign; |
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dest_length = 0; |
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// mp3 specific fix |
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if( sh->wFormatTag == 0x55 ) |
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{ |
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LPMPEGLAYER3WAVEFORMAT k; |
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k = (LPMPEGLAYER3WAVEFORMAT)sh; |
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Avi->cpa_blockalign = k->nBlockSize; |
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} |
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// get the size of the output buffer for streaming the compressed audio |
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if( pacmStreamSize( Avi->cpa_conversion_stream, Avi->cpa_blockalign, &dest_length, ACM_STREAMSIZEF_SOURCE ) != MMSYSERR_NOERROR ) |
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{ |
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if( !Avi->quiet ) |
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Con_Reportf( S_ERROR "Couldn't get ACM conversion stream size.\n" ); |
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pacmStreamClose( Avi->cpa_conversion_stream, 0 ); |
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return false; |
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} |
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Avi->cpa_srcbuffer = (byte *)Mem_Malloc( cls.mempool, Avi->cpa_blockalign ); |
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Avi->cpa_dstbuffer = (byte *)Mem_Malloc( cls.mempool, dest_length ); // maintained buffer for raw data |
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// prep the headers! |
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Avi->cpa_conversion_header.cbStruct = sizeof( ACMSTREAMHEADER ); |
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Avi->cpa_conversion_header.fdwStatus = 0; |
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Avi->cpa_conversion_header.dwUser = 0; // no user data |
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Avi->cpa_conversion_header.pbSrc = Avi->cpa_srcbuffer; // source buffer |
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Avi->cpa_conversion_header.cbSrcLength = Avi->cpa_blockalign; // source buffer size |
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Avi->cpa_conversion_header.cbSrcLengthUsed = 0; |
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Avi->cpa_conversion_header.dwSrcUser = 0; // no user data |
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Avi->cpa_conversion_header.pbDst = Avi->cpa_dstbuffer; // dest buffer |
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Avi->cpa_conversion_header.cbDstLength = dest_length; // dest buffer size |
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Avi->cpa_conversion_header.cbDstLengthUsed = 0; |
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Avi->cpa_conversion_header.dwDstUser = 0; // no user data |
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if( pacmStreamPrepareHeader( Avi->cpa_conversion_stream, &Avi->cpa_conversion_header, 0 ) != MMSYSERR_NOERROR ) |
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{ |
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if( !Avi->quiet ) |
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Con_Reportf( S_ERROR "couldn't prepare stream headers.\n" ); |
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pacmStreamClose( Avi->cpa_conversion_stream, 0 ); |
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return false; |
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} |
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Avi->cpa_blocknum = 0; // start at 0. |
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Avi->cpa_blockpos = 0; |
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Avi->cpa_blockoffset = 0; |
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pAVIStreamRead( Avi->audio_stream, Avi->cpa_blocknum * Avi->cpa_blockalign, Avi->cpa_blockalign, Avi->cpa_srcbuffer, Avi->cpa_blockalign, NULL, NULL ); |
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pacmStreamConvert( Avi->cpa_conversion_stream, &Avi->cpa_conversion_header, ACM_STREAMCONVERTF_BLOCKALIGN|ACM_STREAMCONVERTF_START ); |
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// convert first chunk twice. it often fails the first time. BLACK MAGIC. |
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pAVIStreamRead( Avi->audio_stream, Avi->cpa_blocknum * Avi->cpa_blockalign, Avi->cpa_blockalign, Avi->cpa_srcbuffer, Avi->cpa_blockalign, NULL, NULL ); |
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pacmStreamConvert( Avi->cpa_conversion_stream, &Avi->cpa_conversion_header, ACM_STREAMCONVERTF_BLOCKALIGN ); |
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Avi->audio_bytes_per_sample = (bits >> 3 ) * Avi->audio_header->nChannels; |
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return true; |
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} |
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qboolean AVI_GetVideoInfo( movie_state_t *Avi, int *xres, int *yres, float *duration ) |
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{ |
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if( !Avi->active ) |
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return false; |
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if( xres != NULL ) |
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*xres = Avi->video_xres; |
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if( yres != NULL ) |
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*yres = Avi->video_yres; |
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if( duration != NULL ) |
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*duration = (float)Avi->video_frames / Avi->video_fps; |
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return true; |
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} |
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// returns a unique frame identifier |
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int AVI_GetVideoFrameNumber( movie_state_t *Avi, float time ) |
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{ |
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if( !Avi->active ) |
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return 0; |
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return (time * Avi->video_fps); |
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} |
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int AVI_GetVideoFrameCount( movie_state_t *Avi ) |
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{ |
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if( !Avi->active ) |
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return 0; |
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return Avi->video_frames; |
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} |
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int AVI_TimeToSoundPosition( movie_state_t *Avi, int time ) |
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{ |
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if( !Avi->active || !Avi->audio_stream ) |
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return 0; |
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// UNDONE: what about compressed audio? |
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return pAVIStreamTimeToSample( Avi->audio_stream, time ) * Avi->audio_bytes_per_sample; |
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} |
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// gets the raw frame data |
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byte *AVI_GetVideoFrame( movie_state_t *Avi, long frame ) |
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{ |
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LPBITMAPINFOHEADER frame_info; |
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byte *frame_raw; |
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if( !Avi->active ) return NULL; |
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if( frame >= Avi->video_frames ) |
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frame = Avi->video_frames - 1; |
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frame_info = (LPBITMAPINFOHEADER)pAVIStreamGetFrame( Avi->video_getframe, frame ); |
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frame_raw = (byte *)frame_info + frame_info->biSize + frame_info->biClrUsed * sizeof( RGBQUAD ); |
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pDrawDibDraw( Avi->hDD, Avi->hDC, 0, 0, Avi->video_xres, Avi->video_yres, frame_info, frame_raw, 0, 0, Avi->video_xres, Avi->video_yres, 0 ); |
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return Avi->pframe_data; |
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} |
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qboolean AVI_GetAudioInfo( movie_state_t *Avi, wavdata_t *snd_info ) |
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{ |
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if( !Avi->active || Avi->audio_stream == NULL || snd_info == NULL ) |
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{ |
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return false; |
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} |
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snd_info->rate = Avi->audio_header->nSamplesPerSec; |
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snd_info->channels = Avi->audio_header->nChannels; |
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if( Avi->audio_codec == WAVE_FORMAT_PCM ) // uncompressed audio! |
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snd_info->width = ( Avi->audio_bytes_per_sample > Avi->audio_header->nChannels ) ? 2 : 1; |
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else snd_info->width = 2; // assume compressed audio is always 16 bit |
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snd_info->size = snd_info->rate * snd_info->width * snd_info->channels; |
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snd_info->loopStart = 0; // using loopStart as streampos |
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return true; |
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} |
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// sync the current audio read to a specific offset |
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qboolean AVI_SeekPosition( movie_state_t *Avi, dword offset ) |
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{ |
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int breaker; |
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if( offset < Avi->cpa_blockoffset ) // well, shit. we can't seek backwards... restart |
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{ |
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if( Avi->cpa_blockoffset - offset < 500000 ) |
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return false; // don't bother if it's gonna catch up soon |
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Avi->cpa_blocknum = 0; // start at 0, eh. |
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Avi->cpa_blockpos = 0; |
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Avi->cpa_blockoffset = 0; |
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pAVIStreamRead( Avi->audio_stream, Avi->cpa_blocknum * Avi->cpa_blockalign, Avi->cpa_blockalign, Avi->cpa_srcbuffer, Avi->cpa_blockalign, NULL, NULL ); |
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pacmStreamConvert( Avi->cpa_conversion_stream, &Avi->cpa_conversion_header, ACM_STREAMCONVERTF_BLOCKALIGN|ACM_STREAMCONVERTF_START ); |
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// convert first chunk twice. it often fails the first time. BLACK MAGIC. |
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pAVIStreamRead( Avi->audio_stream, Avi->cpa_blocknum * Avi->cpa_blockalign, Avi->cpa_blockalign, Avi->cpa_srcbuffer, Avi->cpa_blockalign, NULL, NULL ); |
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pacmStreamConvert( Avi->cpa_conversion_stream, &Avi->cpa_conversion_header, ACM_STREAMCONVERTF_BLOCKALIGN ); |
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} |
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// now then: seek forwards to the required block |
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breaker = 30; // maximum zero blocks: anti-freeze protection |
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while( Avi->cpa_blockoffset + Avi->cpa_conversion_header.cbDstLengthUsed < offset ) |
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{ |
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Avi->cpa_blocknum++; |
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Avi->cpa_blockoffset += Avi->cpa_conversion_header.cbDstLengthUsed; |
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pAVIStreamRead( Avi->audio_stream, Avi->cpa_blocknum * Avi->cpa_blockalign, Avi->cpa_blockalign, Avi->cpa_srcbuffer, Avi->cpa_blockalign, NULL, NULL ); |
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pacmStreamConvert( Avi->cpa_conversion_stream, &Avi->cpa_conversion_header, ACM_STREAMCONVERTF_BLOCKALIGN ); |
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if( Avi->cpa_conversion_header.cbDstLengthUsed == 0 ) |
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breaker--; |
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else breaker = 30; |
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if( breaker <= 0 ) |
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return false; |
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Avi->cpa_blockpos = 0; |
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} |
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// seek to the right position inside the block |
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Avi->cpa_blockpos = offset - Avi->cpa_blockoffset; |
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return true; |
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} |
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// get a chunk of audio from the stream (in bytes) |
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int AVI_GetAudioChunk( movie_state_t *Avi, char *audiodata, int offset, int length ) |
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{ |
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long result = 0; |
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int i; |
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// zero data past the end of the file |
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if( offset + length > Avi->audio_length ) |
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{ |
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if( offset <= Avi->audio_length ) |
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{ |
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long remaining_length = Avi->audio_length - offset; |
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AVI_GetAudioChunk( Avi, audiodata, offset, remaining_length ); |
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for( i = remaining_length; i < length; i++ ) |
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audiodata[i] = 0; |
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} |
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else |
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{ |
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// we out of soundtrack, just zeroing buffer |
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for( i = 0; i < length; i++ ) |
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audiodata[i] = 0; |
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// return length; |
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} |
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} |
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// uncompressed audio! |
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if( Avi->audio_codec == WAVE_FORMAT_PCM ) |
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{ |
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// very simple - read straight out |
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pAVIStreamRead( Avi->audio_stream, offset / Avi->audio_bytes_per_sample, length / Avi->audio_bytes_per_sample, audiodata, length, &result, NULL ); |
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return result; |
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} |
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else |
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{ |
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// compressed audio! |
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result = 0; |
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// seek to correct chunk and all that stuff |
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if( !AVI_SeekPosition( Avi, offset )) |
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return 0; // don't continue if we're waiting for the play pointer to catch up |
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while( length > 0 ) |
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{ |
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long blockread = Avi->cpa_conversion_header.cbDstLengthUsed - Avi->cpa_blockpos; |
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if( blockread <= 0 ) // read next |
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{ |
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Avi->cpa_blocknum++; |
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Avi->cpa_blockoffset += Avi->cpa_conversion_header.cbDstLengthUsed; |
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|
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pAVIStreamRead( Avi->audio_stream, Avi->cpa_blocknum * Avi->cpa_blockalign, Avi->cpa_blockalign, Avi->cpa_srcbuffer, Avi->cpa_blockalign, NULL, NULL ); |
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pacmStreamConvert( Avi->cpa_conversion_stream, &Avi->cpa_conversion_header, ACM_STREAMCONVERTF_BLOCKALIGN ); |
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Avi->cpa_blockpos = 0; |
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continue; |
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} |
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if( blockread > length ) |
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blockread = length; |
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// copy the data |
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memcpy( audiodata + result, (void *)( Avi->cpa_dstbuffer + Avi->cpa_blockpos ), blockread ); |
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Avi->cpa_blockpos += blockread; |
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result += blockread; |
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length -= blockread; |
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} |
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return result; |
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} |
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} |
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void AVI_CloseVideo( movie_state_t *Avi ) |
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{ |
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if( Avi->active ) |
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{ |
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pAVIStreamGetFrameClose( Avi->video_getframe ); |
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|
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if( Avi->audio_stream != NULL ) |
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{ |
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pAVIStreamRelease( Avi->audio_stream ); |
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Mem_Free( Avi->audio_header ); |
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|
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if( Avi->audio_codec != WAVE_FORMAT_PCM ) |
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{ |
|
pacmStreamUnprepareHeader( Avi->cpa_conversion_stream, &Avi->cpa_conversion_header, 0 ); |
|
pacmStreamClose( Avi->cpa_conversion_stream, 0 ); |
|
Mem_Free( Avi->cpa_srcbuffer ); |
|
Mem_Free( Avi->cpa_dstbuffer ); |
|
} |
|
} |
|
|
|
pAVIStreamRelease( Avi->video_stream ); |
|
|
|
DeleteObject( Avi->hBitmap ); |
|
pDrawDibClose( Avi->hDD ); |
|
DeleteDC( Avi->hDC ); |
|
} |
|
|
|
memset( Avi, 0, sizeof( movie_state_t )); |
|
} |
|
|
|
void AVI_OpenVideo( movie_state_t *Avi, const char *filename, qboolean load_audio, int quiet ) |
|
{ |
|
BITMAPINFOHEADER bmih; |
|
AVISTREAMINFO stream_info; |
|
long opened_streams = 0; |
|
LONG hr; |
|
|
|
// default state: non-working. |
|
Avi->active = false; |
|
Avi->quiet = quiet; |
|
|
|
// can't load Video For Windows :-( |
|
if( !avi_initialized ) return; |
|
|
|
// load the AVI |
|
hr = pAVIFileOpen( &Avi->pfile, filename, OF_SHARE_DENY_WRITE, 0L ); |
|
|
|
if( hr != 0 ) // error opening AVI: |
|
{ |
|
switch( hr ) |
|
{ |
|
case AVIERR_BADFORMAT: |
|
if( !Avi->quiet ) |
|
Con_DPrintf( S_ERROR "corrupt file or unknown format.\n" ); |
|
break; |
|
case AVIERR_MEMORY: |
|
if( !Avi->quiet ) |
|
Con_DPrintf( S_ERROR "insufficient memory to open file.\n" ); |
|
break; |
|
case AVIERR_FILEREAD: |
|
if( !Avi->quiet ) |
|
Con_DPrintf( S_ERROR "disk error reading file.\n" ); |
|
break; |
|
case AVIERR_FILEOPEN: |
|
if( !Avi->quiet ) |
|
Con_DPrintf( S_ERROR "disk error opening file.\n" ); |
|
break; |
|
case REGDB_E_CLASSNOTREG: |
|
default: |
|
if( !Avi->quiet ) |
|
Con_DPrintf( S_ERROR "no handler found (or file not found).\n" ); |
|
break; |
|
} |
|
return; |
|
} |
|
|
|
Avi->video_stream = Avi->audio_stream = NULL; |
|
|
|
// open the streams until a stream is not available. |
|
while( 1 ) |
|
{ |
|
PAVISTREAM stream = NULL; |
|
|
|
if( pAVIFileGetStream( Avi->pfile, &stream, 0L, opened_streams++ ) != AVIERR_OK ) |
|
break; |
|
|
|
if( stream == NULL ) |
|
break; |
|
|
|
pAVIStreamInfo( stream, &stream_info, sizeof( stream_info )); |
|
|
|
if( stream_info.fccType == streamtypeVIDEO && Avi->video_stream == NULL ) |
|
{ |
|
Avi->video_stream = stream; |
|
Avi->video_frames = stream_info.dwLength; |
|
Avi->video_xres = stream_info.rcFrame.right - stream_info.rcFrame.left; |
|
Avi->video_yres = stream_info.rcFrame.bottom - stream_info.rcFrame.top; |
|
Avi->video_fps = (float)stream_info.dwRate / (float)stream_info.dwScale; |
|
} |
|
else if( stream_info.fccType == streamtypeAUDIO && Avi->audio_stream == NULL && load_audio ) |
|
{ |
|
long size; |
|
|
|
Avi->audio_stream = stream; |
|
|
|
// read the audio header |
|
pAVIStreamReadFormat( Avi->audio_stream, pAVIStreamStart( Avi->audio_stream ), 0, &size ); |
|
|
|
Avi->audio_header = (WAVEFORMAT *)Mem_Malloc( cls.mempool, size ); |
|
pAVIStreamReadFormat( Avi->audio_stream, pAVIStreamStart( Avi->audio_stream ), Avi->audio_header, &size ); |
|
Avi->audio_header_size = size; |
|
Avi->audio_codec = Avi->audio_header->wFormatTag; |
|
|
|
// length of converted audio in samples |
|
Avi->audio_length = (long)((float)stream_info.dwLength / Avi->audio_header->nAvgBytesPerSec ); |
|
Avi->audio_length *= Avi->audio_header->nSamplesPerSec; |
|
|
|
if( Avi->audio_codec != WAVE_FORMAT_PCM ) |
|
{ |
|
if( !AVI_ACMConvertAudio( Avi )) |
|
{ |
|
Mem_Free( Avi->audio_header ); |
|
Avi->audio_stream = NULL; |
|
continue; |
|
} |
|
} |
|
else Avi->audio_bytes_per_sample = Avi->audio_header->nBlockAlign; |
|
Avi->audio_length *= Avi->audio_bytes_per_sample; |
|
} |
|
else |
|
{ |
|
pAVIStreamRelease( stream ); |
|
} |
|
} |
|
|
|
// display error message-stream not found. |
|
if( Avi->video_stream == NULL ) |
|
{ |
|
if( Avi->pfile ) // if file is open, close it |
|
pAVIFileRelease( Avi->pfile ); |
|
if( !Avi->quiet ) |
|
Con_DPrintf( S_ERROR "couldn't find a valid video stream.\n" ); |
|
return; |
|
} |
|
|
|
pAVIFileRelease( Avi->pfile ); // release the file |
|
Avi->video_getframe = pAVIStreamGetFrameOpen( Avi->video_stream, NULL ); // open the frame getter |
|
|
|
if( Avi->video_getframe == NULL ) |
|
{ |
|
if( !Avi->quiet ) |
|
Con_DPrintf( S_ERROR "error attempting to read video frames.\n" ); |
|
return; // couldn't open frame getter. |
|
} |
|
|
|
bmih.biSize = sizeof( BITMAPINFOHEADER ); |
|
bmih.biPlanes = 1; |
|
bmih.biBitCount = 32; |
|
bmih.biCompression = BI_RGB; |
|
bmih.biWidth = Avi->video_xres; |
|
bmih.biHeight = -Avi->video_yres; // invert height to flip image upside down |
|
|
|
Avi->hDC = CreateCompatibleDC( 0 ); |
|
Avi->hDD = pDrawDibOpen(); |
|
Avi->hBitmap = CreateDIBSection( Avi->hDC, (BITMAPINFO*)(&bmih), DIB_RGB_COLORS, (void**)(&Avi->pframe_data), NULL, 0 ); |
|
SelectObject( Avi->hDC, Avi->hBitmap ); |
|
|
|
Avi->active = true; // done |
|
} |
|
|
|
qboolean AVI_IsActive( movie_state_t *Avi ) |
|
{ |
|
if( Avi != NULL ) |
|
return Avi->active; |
|
return false; |
|
} |
|
|
|
movie_state_t *AVI_GetState( int num ) |
|
{ |
|
return &avi[num]; |
|
} |
|
|
|
/* |
|
============= |
|
AVIKit user interface |
|
|
|
============= |
|
*/ |
|
movie_state_t *AVI_LoadVideo( const char *filename, qboolean load_audio ) |
|
{ |
|
movie_state_t *Avi; |
|
string path; |
|
const char *fullpath; |
|
|
|
// fast reject |
|
if( !avi_initialized ) |
|
return NULL; |
|
|
|
// open cinematic |
|
Q_snprintf( path, sizeof( path ), "media/%s", filename ); |
|
COM_DefaultExtension( path, ".avi" ); |
|
fullpath = FS_GetDiskPath( path, false ); |
|
|
|
if( FS_FileExists( path, false ) && !fullpath ) |
|
{ |
|
Con_Printf( "Couldn't load %s from packfile. Please extract it\n", path ); |
|
return NULL; |
|
} |
|
|
|
Avi = Mem_Malloc( cls.mempool, sizeof( movie_state_t )); |
|
AVI_OpenVideo( Avi, fullpath, load_audio, false ); |
|
|
|
if( !AVI_IsActive( Avi )) |
|
{ |
|
AVI_FreeVideo( Avi ); // something bad happens |
|
return NULL; |
|
} |
|
|
|
// all done |
|
return Avi; |
|
} |
|
|
|
void AVI_FreeVideo( movie_state_t *state ) |
|
{ |
|
if( !state ) return; |
|
|
|
if( Mem_IsAllocatedExt( cls.mempool, state )) |
|
{ |
|
AVI_CloseVideo( state ); |
|
Mem_Free( state ); |
|
} |
|
} |
|
|
|
qboolean AVI_Initailize( void ) |
|
{ |
|
if( Sys_CheckParm( "-noavi" )) |
|
{ |
|
Con_Printf( "AVI: Disabled\n" ); |
|
return false; |
|
} |
|
|
|
if( !Sys_LoadLibrary( &avifile_dll )) |
|
return false; |
|
|
|
if( !Sys_LoadLibrary( &msvfw_dll )) |
|
{ |
|
Sys_FreeLibrary( &avifile_dll ); |
|
return false; |
|
} |
|
|
|
if( !Sys_LoadLibrary( &msacm_dll )) |
|
{ |
|
Sys_FreeLibrary( &avifile_dll ); |
|
Sys_FreeLibrary( &msvfw_dll ); |
|
return false; |
|
} |
|
|
|
avi_initialized = true; |
|
pAVIFileInit(); |
|
|
|
return true; |
|
} |
|
|
|
void AVI_Shutdown( void ) |
|
{ |
|
if( !avi_initialized ) return; |
|
|
|
pAVIFileExit(); |
|
|
|
Sys_FreeLibrary( &avifile_dll ); |
|
Sys_FreeLibrary( &msvfw_dll ); |
|
Sys_FreeLibrary( &msacm_dll ); |
|
avi_initialized = false; |
|
} |
|
#endif // _WIN32
|
|
|