uint8_t vidHeader::getAudioStreamsInfo(uint32_t *nbStreams, audioInfo **infos)
{
WAVHeader *wav;
*infos=NULL;
*nbStreams=0;
wav=getAudioInfo( );
if(!wav) return 1;
*nbStreams=1;
*infos=new audioInfo[1];
WAV2AudioInfo(wav,*infos);
(*infos)->av_sync=0;
return 1;
}
/* LoadBuffer loads the named audio file into an OpenAL buffer object, and
* returns the new buffer ID. */
static ALuint LoadSound(const char *filename)
{
ALenum err, format, type, channels;
ALuint rate, buffer;
size_t datalen;
void *data;
FilePtr sound;
/* Open the audio file */
sound = openAudioFile(filename, 1000);
if(!sound)
{
fprintf(stderr, "Could not open audio in %s\n", filename);
closeAudioFile(sound);
return 0;
}
/* Get the sound format, and figure out the OpenAL format */
if(getAudioInfo(sound, &rate, &channels, &type) != 0)
{
fprintf(stderr, "Error getting audio info for %s\n", filename);
closeAudioFile(sound);
return 0;
}
format = GetFormat(channels, type, NULL);
if(format == AL_NONE)
{
fprintf(stderr, "Unsupported format (%s, %s) for %s\n",
ChannelsName(channels), TypeName(type), filename);
closeAudioFile(sound);
return 0;
}
/* Decode the whole audio stream to a buffer. */
data = decodeAudioStream(sound, &datalen);
if(!data)
{
fprintf(stderr, "Failed to read audio from %s\n", filename);
closeAudioFile(sound);
return 0;
}
/* Buffer the audio data into a new buffer object, then free the data and
* close the file. */
buffer = 0;
alGenBuffers(1, &buffer);
alBufferData(buffer, format, data, datalen, rate);
free(data);
closeAudioFile(sound);
/* Check if an error occured, and clean up if so. */
err = alGetError();
if(err != AL_NO_ERROR)
{
fprintf(stderr, "OpenAL Error: %s\n", alGetString(err));
if(buffer && alIsBuffer(buffer))
alDeleteBuffers(1, &buffer);
return 0;
}
return buffer;
}
