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better alac management

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This commit is contained in:
Philippe G
2021-01-10 02:13:46 -08:00
parent 9bf7b250e0
commit 174942f509
4 changed files with 18 additions and 11 deletions
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23
components/squeezelite/alac.c
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@@ -119,8 +119,16 @@ static int read_mp4_header(void) {
// extract audio config from within alac
if (!strcmp(type, "alac") && bytes > len) {
u8_t *ptr = streambuf->readp + 36;
l->decoder = alac_create_decoder(len - 36, ptr, &l->sample_size, &l->sample_rate, &l->channels);
l->play = l->trak;
unsigned int block_size;
l->decoder = alac_create_decoder(len - 36, ptr, &l->sample_size, &l->sample_rate, &l->channels, &block_size);
l->play = l->trak;
l->writebuf = malloc(block_size + 256);
if (!l->writebuf) {
LOG_ERROR("cannot allocate write buffer for %u bytes", block_size);
return -1;
} else {
LOG_INFO("write buffer of %u bytes", block_size);
}
}
// extract the total number of samples from stts
@@ -510,12 +518,11 @@ static decode_state alac_decode(void) {
static void alac_open(u8_t size, u8_t rate, u8_t chan, u8_t endianness) {
if (l->decoder) alac_delete_decoder(l->decoder);
else l->writebuf = malloc(BLOCK_SIZE * 2);
if (l->writebuf) free(l->writebuf);
if (l->chunkinfo) free(l->chunkinfo);
if (l->block_size) free(l->block_size);
if (l->stsc) free(l->stsc);
l->decoder = l->chunkinfo = l->stsc = l->block_size = NULL;
l->writebuf = l->decoder = l->chunkinfo = l->stsc = l->block_size = NULL;
l->skip = 0;
l->samples = l->sttssamples = 0;
l->empty = false;
@@ -524,11 +531,11 @@ static void alac_open(u8_t size, u8_t rate, u8_t chan, u8_t endianness) {
static void alac_close(void) {
if (l->decoder) alac_delete_decoder(l->decoder);
if (l->writebuf) free(l->writebuf);
if (l->chunkinfo) free(l->chunkinfo);
if (l->block_size) free(l->block_size);
if (l->stsc) free(l->stsc);
l->decoder = l->chunkinfo = l->stsc = l->block_size = NULL;
free(l->writebuf);
l->writebuf = l->decoder = l->chunkinfo = l->stsc = l->block_size = NULL;
}
struct codec *register_alac(void) {
@@ -547,7 +554,7 @@ struct codec *register_alac(void) {
return NULL;
}
l->decoder = l->chunkinfo = l->stsc = l->block_size = NULL;
l->writebuf = l->decoder = l->chunkinfo = l->stsc = l->block_size = NULL;
LOG_INFO("using alac to decode alc");
return &ret;