author | nemo |
Sun, 30 Aug 2009 13:53:27 +0000 | |
changeset 2338 | 8f6508c97f3f |
parent 2266 | 289dc8e51210 |
child 2415 | 35d09cbf819a |
permissions | -rw-r--r-- |
2191 | 1 |
/* |
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* OpenAL Bridge - a simple portable library for OpenAL interface |
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* Copyright (c) 2009 Vittorio Giovara <vittorio.giovara@gmail.com> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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2257
7eb31efcfb9b
updates licence and fix a memory leak (which was consuming iphone memory)
koda
parents:
2220
diff
changeset
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation; version 2 of the License |
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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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2257
7eb31efcfb9b
updates licence and fix a memory leak (which was consuming iphone memory)
koda
parents:
2220
diff
changeset
|
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* GNU Lesser General Public License for more details. |
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* |
2257
7eb31efcfb9b
updates licence and fix a memory leak (which was consuming iphone memory)
koda
parents:
2220
diff
changeset
|
14 |
* You should have received a copy of the GNU Lesser General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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*/ |
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#include "loaders.h" |
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#ifdef __CPLUSPLUS |
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extern "C" { |
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#endif |
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int load_wavpcm (const char *filename, ALenum *format, char ** data, ALsizei *bitsize, ALsizei *freq) { |
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WAV_header_t WAVHeader; |
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FILE *wavfile; |
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int32_t t; |
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uint32_t n = 0; |
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wavfile = Fopen(filename, "rb"); |
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fread(&WAVHeader.ChunkID, sizeof(uint32_t), 1, wavfile); |
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fread(&WAVHeader.ChunkSize, sizeof(uint32_t), 1, wavfile); |
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fread(&WAVHeader.Format, sizeof(uint32_t), 1, wavfile); |
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#ifdef DEBUG |
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fprintf(stderr, "ChunkID: %X\n", invert_endianness(WAVHeader.ChunkID)); |
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fprintf(stderr, "ChunkSize: %d\n", WAVHeader.ChunkSize); |
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fprintf(stderr, "Format: %X\n", invert_endianness(WAVHeader.Format)); |
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#endif |
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fread(&WAVHeader.Subchunk1ID, sizeof(uint32_t), 1, wavfile); |
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fread(&WAVHeader.Subchunk1Size, sizeof(uint32_t), 1, wavfile); |
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fread(&WAVHeader.AudioFormat, sizeof(uint16_t), 1, wavfile); |
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fread(&WAVHeader.NumChannels, sizeof(uint16_t), 1, wavfile); |
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fread(&WAVHeader.SampleRate, sizeof(uint32_t), 1, wavfile); |
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fread(&WAVHeader.ByteRate, sizeof(uint32_t), 1, wavfile); |
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fread(&WAVHeader.BlockAlign, sizeof(uint16_t), 1, wavfile); |
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fread(&WAVHeader.BitsPerSample, sizeof(uint16_t), 1, wavfile); |
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#ifdef DEBUG |
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fprintf(stderr, "Subchunk1ID: %X\n", invert_endianness(WAVHeader.Subchunk1ID)); |
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fprintf(stderr, "Subchunk1Size: %d\n", WAVHeader.Subchunk1Size); |
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fprintf(stderr, "AudioFormat: %d\n", WAVHeader.AudioFormat); |
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fprintf(stderr, "NumChannels: %d\n", WAVHeader.NumChannels); |
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fprintf(stderr, "SampleRate: %d\n", WAVHeader.SampleRate); |
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fprintf(stderr, "ByteRate: %d\n", WAVHeader.ByteRate); |
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fprintf(stderr, "BlockAlign: %d\n", WAVHeader.BlockAlign); |
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fprintf(stderr, "BitsPerSample: %d\n", WAVHeader.BitsPerSample); |
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#endif |
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do { /*remove useless header chunks (plenty room for improvements)*/ |
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t = fread(&WAVHeader.Subchunk2ID, sizeof(uint32_t), 1, wavfile); |
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if (invert_endianness(WAVHeader.Subchunk2ID) == 0x64617461) |
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break; |
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if (t <= 0) { /*eof*/ |
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fprintf(stderr, "ERROR: wrong WAV header\n"); |
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return AL_FALSE; |
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} |
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} while (1); |
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fread(&WAVHeader.Subchunk2Size, sizeof(uint32_t), 1, wavfile); |
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#ifdef DEBUG |
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fprintf(stderr, "Subchunk2ID: %X\n", invert_endianness(WAVHeader.Subchunk2ID)); |
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fprintf(stderr, "Subchunk2Size: %d\n", WAVHeader.Subchunk2Size); |
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#endif |
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*data = (char*) Malloc (sizeof(char) * WAVHeader.Subchunk2Size); |
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/*this could be improved*/ |
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do { |
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n += fread(&((*data)[n]), sizeof(uint8_t), 1, wavfile); |
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} while (n < WAVHeader.Subchunk2Size); |
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fclose(wavfile); |
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#ifdef DEBUG |
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fprintf(stderr, "Last two bytes of data: %X%X\n", (*data)[n-2], (*data)[n-1]); |
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#endif |
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/*remaining parameters*/ |
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/*Valid formats are AL_FORMAT_MONO8, AL_FORMAT_MONO16, AL_FORMAT_STEREO8, and AL_FORMAT_STEREO16*/ |
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if (WAVHeader.NumChannels == 1) { |
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if (WAVHeader.BitsPerSample == 8) |
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*format = AL_FORMAT_MONO8; |
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else { |
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if (WAVHeader.BitsPerSample == 16) |
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*format = AL_FORMAT_MONO16; |
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else { |
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fprintf(stderr, "ERROR: wrong WAV header - bitsample value\n"); |
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return AL_FALSE; |
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} |
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} |
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} else { |
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if (WAVHeader.NumChannels == 2) { |
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if (WAVHeader.BitsPerSample == 8) |
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*format = AL_FORMAT_STEREO8; |
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else { |
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if (WAVHeader.BitsPerSample == 16) |
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*format = AL_FORMAT_STEREO16; |
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else { |
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fprintf(stderr, "ERROR: wrong WAV header - bitsample value\n"); |
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return AL_FALSE; |
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} |
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} |
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} else { |
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fprintf(stderr, "ERROR: wrong WAV header - format value\n"); |
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return AL_FALSE; |
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} |
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} |
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*bitsize = WAVHeader.Subchunk2Size; |
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*freq = WAVHeader.SampleRate; |
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return AL_TRUE; |
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} |
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2257
7eb31efcfb9b
updates licence and fix a memory leak (which was consuming iphone memory)
koda
parents:
2220
diff
changeset
|
127 |
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2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
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int load_oggvorbis (const char *filename, ALenum *format, char **data, ALsizei *bitsize, ALsizei *freq) { |
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/*implementation inspired from http://www.devmaster.net/forums/showthread.php?t=1153 */ |
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OggVorbis_File oggStream; /*stream handle*/ |
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vorbis_info *vorbisInfo; /*some formatting data*/ |
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int64_t pcm_length; /*length of the decoded data*/ |
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other indentation, binding and miscellaneous fixes to openalbridge
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int section, result, size = 0; |
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#ifdef DEBUG |
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int i; |
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vorbis_comment *vorbisComment; /*other less useful data*/ |
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#endif |
2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
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result = ov_fopen((char*) filename, &oggStream); |
2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
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if (result < 0) { |
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fprintf (stderr, "ERROR: ov_open_callbacks failed with %X", result); |
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ov_clear(&oggStream); |
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2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
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return -1; |
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
145 |
} |
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
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2259 | 147 |
vorbisInfo = ov_info(&oggStream, -1); |
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pcm_length = ov_pcm_total(&oggStream, -1) << vorbisInfo->channels; |
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#ifdef DEBUG |
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vorbisComment = ov_comment(&oggStream, -1); |
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fprintf(stderr, "Version: %d\n", vorbisInfo->version); |
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fprintf(stderr, "Channels: %d\n", vorbisInfo->channels); |
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fprintf(stderr, "Rate (Hz): %ld\n", vorbisInfo->rate); |
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fprintf(stderr, "Bitrate Upper: %ld\n", vorbisInfo->bitrate_upper); |
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fprintf(stderr, "Bitrate Nominal: %ld\n", vorbisInfo->bitrate_nominal); |
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fprintf(stderr, "Bitrate Lower: %ld\n", vorbisInfo->bitrate_lower); |
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fprintf(stderr, "Bitrate Windows: %ld\n", vorbisInfo->bitrate_window); |
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fprintf(stderr, "Vendor: %s\n", vorbisComment->vendor); |
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fprintf(stderr, "PCM data size: %lld\n", pcm_length); |
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fprintf(stderr, "# comment: %d\n", vorbisComment->comments); |
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for (i = 0; i < vorbisComment->comments; i++) |
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fprintf(stderr, "\tComment %d: %s\n", i, vorbisComment->user_comments[i]); |
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#endif |
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/*allocates enough room for the decoded data*/ |
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*data = (char*) Malloc (sizeof(char) * pcm_length); |
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/*there *should* not be ogg at 8 bits*/ |
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if (vorbisInfo->channels == 1) |
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*format = AL_FORMAT_MONO16; |
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else { |
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if (vorbisInfo->channels == 2) |
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*format = AL_FORMAT_STEREO16; |
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else { |
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fprintf(stderr, "ERROR: wrong OGG header - channel value (%d)\n", vorbisInfo->channels); |
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2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
177 |
ov_clear(&oggStream); |
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return AL_FALSE; |
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} |
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} |
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||
2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
182 |
while (size < pcm_length) { |
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/*ov_read decodes the ogg stream and storse the pcm in data*/ |
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result = ov_read (&oggStream, *data + size, pcm_length - size, 0, 2, 1, §ion); |
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2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
185 |
if (result > 0) { |
2259 | 186 |
size += result; |
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} else { |
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if (result == 0) |
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break; |
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else { |
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fprintf(stderr, "ERROR: end of file from OGG stream\n"); |
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2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
192 |
ov_clear(&oggStream); |
2259 | 193 |
return AL_FALSE; |
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} |
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} |
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} |
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2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
198 |
/*set the last fields*/ |
2259 | 199 |
*bitsize = size; |
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*freq = vorbisInfo->rate; |
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||
2265
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
202 |
/*cleaning time*/ |
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
203 |
ov_clear(&oggStream); |
eae64600fb69
fix a bug where a fclose() was called after an ov_clear()
koda
parents:
2260
diff
changeset
|
204 |
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2259 | 205 |
return AL_TRUE; |
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} |
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#ifdef __CPLUSPLUS |
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} |
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#endif |