void
VideoMixerNode::ClearInput(media_input *input) {
// initialize the input
sprintf(input->name, "VideoMixer Input");
input->node = Node();
input->source = media_source::null;
input->destination = media_destination::null;
GetInputFormat(&input->format);
}
void VideoMixerNode::GetFlavor(flavor_info *outInfo, int32 id)
{
fprintf(stderr,"VideoMixerNode::GetFlavor\n");
if (outInfo != NULL) {
outInfo->internal_id = id;
outInfo->name = "Haiku VideoMixer";
outInfo->info = "A VideoMixerNode node mixes multiple video streams into a single stream.";
outInfo->kinds = B_BUFFER_CONSUMER | B_BUFFER_PRODUCER;
outInfo->flavor_flags = B_FLAVOR_IS_LOCAL;
outInfo->possible_count = INT_MAX; // no limit
outInfo->in_format_count = 1;
media_format *inFormats = new media_format[outInfo->in_format_count];
GetInputFormat(&inFormats[0]);
outInfo->in_formats = inFormats;
outInfo->out_format_count = 1; // single output
media_format *outFormats = new media_format[outInfo->out_format_count];
GetOutputFormat(&outFormats[0]);
outInfo->out_formats = outFormats;
}
}
int32_t main (int32_t argc, char * argv[])
{
char * inputFileName = argv[1];
char * outputFileName = argv[2];
FILE * inputFile = NULL;
FILE * outputFile = NULL;
bool malformed = argc < 2;
// Parse the commandline and open the necessary files
for (int32_t i = 1; i < argc; ++i)
{
if (strcmp (argv[i], "-h") == 0)
{
malformed = true;
}
else
{
if (argv[i][0] == '-')
{
printf ("unknown option: %s\n", argv[i]);
malformed = true;
}
else
{
if (inputFile == NULL) inputFile = fopen (inputFileName, "rb"); // the b is necessary for Windows -- ignored by Unix
if(inputFile == NULL)
{
fprintf(stderr," Cannot open file \"%s\"\n", inputFileName);
exit (1);
}
if (outputFile == NULL) outputFile = fopen (outputFileName, "w+b"); // the b is necessary for Windows -- ignored by Unix
if(outputFile == NULL)
{
fprintf(stderr," Cannot open file \"%s\"\n", outputFileName);
exit (1);
}
}
}
if (malformed)
{
break;
}
}
if (!malformed)
{
printf("Input file: %s\n", inputFileName);
printf("Output file: %s\n", outputFileName);
// So at this point we have the input and output files open. Need to determine what we're dealing with
int32_t theError = 0;
AudioFormatDescription inputFormat;
AudioFormatDescription outputFormat;
int32_t inputDataPos = 0, inputDataSize = 0;
uint32_t inputFileType = 0; // 'caff' or 'WAVE'
uint32_t outputFileType = 0; // 'caff' or 'WAVE'
theError = GetInputFormat(inputFile, &inputFormat, &inputFileType);
if (theError)
{
fprintf(stderr," Cannot determine what format file \"%s\" is\n", inputFileName);
exit (1);
}
if (inputFileType != 'WAVE' && inputFileType != 'caff')
{
fprintf(stderr," File \"%s\" is of an unsupported type\n", outputFileName);
exit (1);
}
if (inputFormat.mFormatID != kALACFormatAppleLossless && inputFormat.mFormatID != kALACFormatLinearPCM)
{
fprintf(stderr," File \"%s\'s\" data format is of an unsupported type\n", outputFileName);
exit (1);
}
SetOutputFormat(inputFormat, &outputFormat);
if (theError)
{
fprintf(stderr," Cannot determine what format file \"%s\" is\n", outputFileName);
exit (1);
}
FindDataStart(inputFile, inputFileType, &inputDataPos, &inputDataSize);
fseek(inputFile, inputDataPos, SEEK_SET);
// We know where we are and we know what we're doing
if (outputFormat.mFormatID == kALACFormatAppleLossless)
{
// encoding
EncodeALAC(inputFile, outputFile, inputFormat, outputFormat, inputDataSize);
}
else
{
// decoding
GetOutputFileType(outputFileName, &outputFileType);
if (outputFileType == 'WAVE' && outputFormat.mChannelsPerFrame > 2)
{
// we don't support WAVE because we don't want to reinterleave on output
fprintf(stderr," Cannot decode more than two channels to WAVE\n");
exit (1);
}
DecodeALAC(inputFile, outputFile, inputFormat, outputFormat, inputDataSize, outputFileType);
}
}
if (malformed) {
printf ("Usage:\n");
printf ("Encode:\n");
printf (" alacconvert <input wav or caf file> <output caf file>\n");
printf ("Decode:\n");
printf (" alacconvert <input caf file> <output wav or caf file>\n");
printf ("\n");
return 1;
}
if (inputFile) fclose(inputFile);
if (outputFile) fclose(outputFile);
return 0;
}