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decoder/dsdiff: add local variable "remaining_bytes" 

Remember the chunk's total size.
This commit is contained in:
Max Kellermann 2014-08-23 15:21:08 +02:00
parent 828ea700e8
commit 4259b17b91
1 changed files with 6 additions and 5 deletions
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11
src/decoder/plugins/DsdiffDecoderPlugin.cxx
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@ -356,7 +356,7 @@ bit_reverse_buffer(uint8_t *p, uint8_t *end)
static bool
dsdiff_decode_chunk(Decoder &decoder, InputStream &is,
unsigned channels, unsigned sample_rate,
offset_type chunk_size)
const offset_type total_bytes)
{
uint8_t buffer[8192];
@ -365,12 +365,13 @@ dsdiff_decode_chunk(Decoder &decoder, InputStream &is,
const unsigned buffer_frames = sizeof(buffer) / frame_size;
const size_t buffer_size = buffer_frames * frame_size;
while (chunk_size >= frame_size) {
for (offset_type remaining_bytes = total_bytes;
remaining_bytes >= frame_size;) {
/* see how much aligned data from the remaining chunk
fits into the local buffer */
size_t now_size = buffer_size;
if (chunk_size < (offset_type)now_size) {
unsigned now_frames = chunk_size / frame_size;
if (remaining_bytes < (offset_type)now_size) {
unsigned now_frames = remaining_bytes / frame_size;
now_size = now_frames * frame_size;
}
@ -378,7 +379,7 @@ dsdiff_decode_chunk(Decoder &decoder, InputStream &is,
return false;
const size_t nbytes = now_size;
chunk_size -= nbytes;
remaining_bytes -= nbytes;
if (lsbitfirst)
bit_reverse_buffer(buffer, buffer + nbytes);