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aac was more complicated - best is to ignore last 128 bytes - release

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This commit is contained in:
Philippe G
2020-12-23 02:16:29 -08:00
parent 1c730905ec
commit effd24ccd4
1 changed files with 5 additions and 10 deletions
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15
components/squeezelite/helix-aac.c
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@@ -341,7 +341,9 @@ static decode_state helixaac_decode(void) {
bytes_total = _buf_used(streambuf);
bytes_wrap = min(bytes_total, _buf_cont_read(streambuf));
if (stream.state <= DISCONNECT && !bytes_total) {
// Helixaac locks when not having enough samples (~7ms lost)
if (stream.state <= DISCONNECT && bytes_total < 128) {
LOG_WARN("decoder missed %zu bytes at the end", $bytes_total);
UNLOCK_S;
return DECODE_COMPLETE;
}
@@ -431,19 +433,12 @@ static decode_state helixaac_decode(void) {
}
// we always have at least WRAPBUF_LEN unless it's the end of a stream
/* There is a bug in helixaac where it overflows its buffer when not having
* samples and enters an infinite loop so we can't do here the proper test
* if (bytes_wrap < WRAPBUF_LEN && bytes_wrap != bytes_total)
* but instead we'll zero the wrap buf and provide a safe overflow space
* for the decoder
*/
if (bytes_wrap < WRAPBUF_LEN) {
if (bytes_wrap < WRAPBUF_LEN && bytes_wrap != bytes_total) {
// build a linear buffer if we are crossing the end of streambuf
memcpy(a->wrap_buf, streambuf->readp, bytes_wrap);
memcpy(a->wrap_buf + bytes_wrap, streambuf->buf, min(WRAPBUF_LEN, bytes_total) - bytes_wrap);
sptr = a->wrap_buf;
if (bytes_total < WRAPBUF_LEN) memset(a->wrap_buf + bytes_total, 0, WRAPBUF_LEN - bytes_total);
else bytes = bytes_wrap = min(WRAPBUF_LEN, bytes_total);
bytes = bytes_wrap = min(WRAPBUF_LEN, bytes_total);
} else {
sptr = streambuf->readp;
bytes = bytes_wrap;