Allow reading wav files with a 0 bytes RIFF chunk

This is required in order to read streamed wav files produced by
the libavformat wav muxer.
This commit is contained in:
Martin Storsjo 2014-02-07 14:51:06 +02:00
parent 3951d0a4e5
commit cb19aa7c12

View File

@ -83,6 +83,10 @@ void* wav_read_open(const char *filename) {
if (feof(wr->wav))
break;
length = read_int32(wr);
if (!length) {
wr->streamed = 1;
length = ~0;
}
if (tag != TAG('R', 'I', 'F', 'F') || length < 4) {
fseek(wr->wav, length, SEEK_CUR);
continue;
@ -118,7 +122,7 @@ 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) {
if (!wr->data_length || wr->streamed) {
wr->streamed = 1;
return wr;
}