Mercurial > vba-linux

     1 #include "stdafx.h"

     2 #include <cstdio>

     3 #include <cassert>

     4 

     5 #include "AVIWrite.h"

     6 #include "../common/System.h"

     7 

     8 AVIWrite::AVIWrite()

     9 {

    10 	m_failed = false;

    11 	m_file   = NULL;

    12 	m_stream = NULL;

    13 	m_streamCompressed = NULL;

    14 	m_streamSound      = NULL;

    15 	m_videoFrames      = 0;

    16 	m_samplesSound     = 0;

    17 	m_videoFramesTotal = 0;

    18 	m_samplesSoundTotal= 0;

    19 	m_totalBytes       = 0;

    20 	m_segmentNumber    = 0;

    21 	m_usePrevOptions   = false;

    22 	m_pauseRecording   = false;

    23 

    24 	AVIFileInit();

    25 }

    26 

    27 void AVIWrite::CleanUp()

    28 {

    29 	if (m_streamSound)

    30 	{

    31 		AVIStreamClose(m_streamSound);

    32 		m_streamSound = NULL;

    33 	}

    34 	if (m_streamCompressed)

    35 	{

    36 		AVIStreamClose(m_streamCompressed);

    37 		m_streamCompressed = NULL;

    38 	}

    39 	if (m_stream)

    40 	{

    41 		AVIStreamClose(m_stream);

    42 		m_stream = NULL;

    43 	}

    44 	if (m_file)

    45 	{

    46 		AVIFileClose(m_file);

    47 		m_file = NULL;

    48 	}

    49 }

    50 

    51 AVIWrite::~AVIWrite()

    52 {

    53 	CleanUp();

    54 	AVIFileExit();

    55 }

    56 

    57 void AVIWrite::SetVideoFormat(BITMAPINFOHEADER *bh)

    58 {

    59 	// force size to 0x28 to avoid extra fields

    60 	memcpy(&m_bitmap, bh, 0x28);

    61 }

    62 

    63 void AVIWrite::SetSoundFormat(WAVEFORMATEX *format)

    64 {

    65 	memcpy(&m_soundFormat, format, sizeof(WAVEFORMATEX));

    66 	ZeroMemory(&m_soundHeader, sizeof(AVISTREAMINFO));

    67 	// setup the sound stream header

    68 	m_soundHeader.fccType         = streamtypeAUDIO;

    69 	m_soundHeader.dwQuality       = (DWORD)-1;

    70 	m_soundHeader.dwScale         = format->nBlockAlign;

    71 	m_soundHeader.dwInitialFrames = 1;

    72 	m_soundHeader.dwRate       = format->nAvgBytesPerSec;

    73 	m_soundHeader.dwSampleSize = format->nBlockAlign;

    74 

    75 	// create the sound stream

    76 	if (FAILED(AVIFileCreateStream(m_file, &m_streamSound, &m_soundHeader)))

    77 	{

    78 		m_failed = true;

    79 		return;

    80 	}

    81 

    82 	// setup the sound stream format

    83 	if (FAILED(AVIStreamSetFormat(m_streamSound, 0, (void *)&m_soundFormat,

    84 	                              sizeof(WAVEFORMATEX))))

    85 	{

    86 		m_failed = true;

    87 		return;

    88 	}

    89 }

    90 

    91 bool AVIWrite::Open(const char *filename)

    92 {

    93 	// this is only here because AVIFileOpen doesn't seem to do it for us

    94 	FILE*fd = fopen(filename, "wb");

    95 	if (!fd)

    96 	{

    97 		systemMessage(0, "AVI recording failed: file is read-only or already in use.");

    98 		m_failed = true;

    99 		return false;

   100 	}

   101 	fclose(fd);

   102 

   103 	// create the AVI file

   104 	if (FAILED(AVIFileOpen(&m_file,

   105 	                       filename,

   106 	                       OF_WRITE | OF_CREATE,

   107 	                       NULL)))

   108 	{

   109 		m_failed = true;

   110 		return false;

   111 	}

   112 	// setup the video stream information

   113 	ZeroMemory(&m_header, sizeof(AVISTREAMINFO));

   114 	m_header.fccType = streamtypeVIDEO;

   115 	m_header.dwScale = 1;

   116 	m_header.dwRate  = m_fps;

   117 	m_header.dwSuggestedBufferSize = m_bitmap.biSizeImage;

   118 

   119 	// create the video stream

   120 	if (FAILED(AVIFileCreateStream(m_file,

   121 	                               &m_stream,

   122 	                               &m_header)))

   123 	{

   124 		m_failed = true;

   125 		return false;

   126 	}

   127 

   128 	if (!m_usePrevOptions)

   129 	{

   130 		ZeroMemory(&m_options, sizeof(AVICOMPRESSOPTIONS));

   131 		m_arrayOptions[0] = &m_options;

   132 

   133 		// call the dialog to setup the compress options to be used

   134 		if (!AVISaveOptions(AfxGetApp()->m_pMainWnd->GetSafeHwnd(), 0, 1, &m_stream, m_arrayOptions))

   135 		{

   136 			m_failed = true;

   137 			return false;

   138 		}

   139 	}

   140 

   141 	// create the compressed stream

   142 	if (FAILED(AVIMakeCompressedStream(&m_streamCompressed, m_stream, &m_options, NULL)))

   143 	{

   144 		m_failed = true;

   145 		return false;

   146 	}

   147 

   148 	// setup the video stream format

   149 	if (FAILED(AVIStreamSetFormat(m_streamCompressed, 0,

   150 	                              &m_bitmap,

   151 	                              m_bitmap.biSize +

   152 	                              m_bitmap.biClrUsed * sizeof(RGBQUAD))))

   153 	{

   154 		m_failed = true;

   155 		return false;

   156 	}

   157 

   158 	m_videoFrames  = 0;

   159 	m_samplesSound = 0;

   160 	m_totalBytes   = 0;

   161 	if (!m_usePrevOptions) {

   162 		m_videoFramesTotal  = 0;

   163 		m_samplesSoundTotal = 0;

   164 	}

   165 

   166 	strncpy(m_aviFileName, filename, MAX_PATH);

   167 	strncpy(m_aviBaseName, filename, MAX_PATH);

   168 	m_aviFileName[MAX_PATH - 1] = '\0';

   169 	m_aviBaseName[MAX_PATH - 1] = '\0';

   170 	char *dot = strrchr(m_aviBaseName, '.');

   171 	if (dot && dot > strrchr(m_aviBaseName, '/') && dot > strrchr(m_aviBaseName, '\\'))

   172 	{

   173 		strcpy(m_aviExtension, dot);

   174 		dot[0] = '\0';

   175 	}

   176 

   177 	return true;

   178 }

   179 

   180 bool AVIWrite::AddSound(const u8 *sound, int len)

   181 {

   182 	LONG byteBuffer;

   183 

   184 	// return if we failed somewhere already

   185 	if (m_failed)

   186 		return false;

   187 

   188 	assert(len % m_soundFormat.nBlockAlign == 0);

   189 	int samples = len / m_soundFormat.nBlockAlign;

   190 

   191 	if (FAILED(AVIStreamWrite(m_streamSound,

   192 	                          m_samplesSound,

   193 	                          samples,

   194 	                          (LPVOID)sound,

   195 	                          len,

   196 	                          0,

   197 	                          NULL,

   198 	                          &byteBuffer)))

   199 	{

   200 		m_failed = true;

   201 		return false;

   202 	}

   203 	m_samplesSound += samples;

   204 	m_samplesSoundTotal += samples;

   205 	m_totalBytes   += byteBuffer;

   206 	return true;

   207 }

   208 

   209 bool AVIWrite::NextSegment()

   210 {

   211 	char avi_fname[MAX_PATH];

   212 	strcpy(avi_fname, m_aviBaseName);

   213 	char avi_fname_temp[MAX_PATH];

   214 	sprintf(avi_fname_temp, "%s_part%d%s", avi_fname, m_segmentNumber+2, m_aviExtension);

   215 	m_segmentNumber++;

   216 

   217 	CleanUp();

   218 

   219 	m_usePrevOptions = true;

   220 	bool ret = Open(avi_fname_temp);

   221 	m_usePrevOptions = false;

   222 	strcpy(m_aviBaseName, avi_fname);

   223 

   224 	return ret;

   225 }

   226 

   227 bool AVIWrite::AddFrame(const u8 *bmp)

   228 {

   229 	LONG byteBuffer;

   230 

   231 	if (m_failed)

   232 		return false;

   233 

   234 	// write the frame to the video stream

   235 	if (FAILED(AVIStreamWrite(m_streamCompressed,

   236 	                          m_videoFrames,

   237 	                          1,

   238 	                          (LPVOID)bmp,

   239 	                          m_bitmap.biSizeImage,

   240 	                          AVIIF_KEYFRAME,

   241 	                          NULL,

   242 	                          &byteBuffer)))

   243 	{

   244 		m_failed = true;

   245 		return false;

   246 	}

   247 	m_videoFrames++;

   248 	m_videoFramesTotal++;

   249 	m_totalBytes += byteBuffer;

   250 

   251 	// segment / split AVI when it's almost 2 GB (2000MB, to be precise)

   252 	if (!(m_videoFrames % 60) && m_totalBytes > 2097152000)

   253 		return NextSegment();

   254 	else

   255 		return true;

   256 }

   257 

   258 bool AVIWrite::IsSoundAdded()

   259 {

   260 	return m_streamSound != NULL;

   261 }

   262 

   263 void AVIWrite::SetFPS(int f)

   264 {

   265 	m_fps = f;

   266 }

   267 

   268 int AVIWrite::videoFrames()

   269 {

   270 	return m_videoFramesTotal;

   271 }

   272 

   273 void AVIWrite::Pause(bool pause)

   274 {

   275 	m_pauseRecording = pause;

   276 }

   277 

   278 bool AVIWrite::IsPaused()

   279 {

   280 	return m_pauseRecording;

   281 }
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:31:47 -0600
parents	f9f4f1b99eed
children