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Support streamed wav files with a 0 bytes data chunk

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This commit is contained in:
Martin Storsjo 2014-02-07 14:50:13 +02:00
parent 1652691ee9
commit e7348e7a5d
1 changed files with 7 additions and 1 deletions
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8
wavreader.c
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@ -34,6 +34,8 @@ struct wav_reader {
int channels;
int byte_rate;
int block_align;
int streamed;
};
static uint32_t read_tag(struct wav_reader* wr) {
@ -113,6 +115,10 @@ void* wav_read_open(const char *filename) {
} else if (subtag == TAG('d', 'a', 't', 'a')) {
data_pos = ftell(wr->wav);
wr->data_length = sublength;
if (!wr->data_length) {
wr->streamed = 1;
return wr;
}
fseek(wr->wav, sublength, SEEK_CUR);
} else {
fseek(wr->wav, sublength, SEEK_CUR);
@ -154,7 +160,7 @@ int wav_read_data(void* obj, unsigned char* data, unsigned int length) {
int n;
if (wr->wav == NULL)
return -1;
if (length > wr->data_length)
if (length > wr->data_length && !wr->streamed)
length = wr->data_length;
n = fread(data, 1, length, wr->wav);
wr->data_length -= length;