* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*/
-
/*
* based in parts on libfaad, Copyright (C) 2003-2005 M. Bakker,
* Ahead Software AG
*/
-/** \file aacdec.c paraslash's mp3 decoder */
+/** \file aacdec.c paraslash's aac (m4a) decoder */
#include "para.h"
#include "list.h"
+#include "sched.h"
#include "filter.h"
#include "error.h"
#include "string.h"
#include "aac.h"
-/** the output buffer size */
#define MAX_CHANNELS 6
+/** the output buffer size */
#define AAC_OUTBUF_SIZE (FAAD_MIN_STREAMSIZE * MAX_CHANNELS)
/**
*
* \sa filter, filter_node
*/
-struct private_mp4dec_data {
- NeAACDecHandle decoder;
+struct private_aacdec_data {
+ NeAACDecHandle handle;
NeAACDecFrameInfo frame_info;
int initialized;
int decoder_length;
- int consumed;
- long unsigned consumed_total;
-
- long unsigned entry;
+ size_t consumed_total;
+ size_t entry;
};
-static ssize_t mp4dec(char *input_buffer, size_t len, struct filter_node *fn)
+static ssize_t aacdec(char *input_buffer, size_t len, struct filter_node *fn)
{
- struct private_mp4dec_data *padd = fn->private_data;
- struct filter_chain_info *fci = fn->fci;
- unsigned long rate = 0;
- unsigned char channels = 0;
- int i, ret, skip;
+ struct private_aacdec_data *padd = fn->private_data;
+ struct filter_chain *fc = fn->fc;
+ int i, ret;
unsigned char *p, *outbuffer;
unsigned char *inbuf = (unsigned char*)input_buffer;
+ size_t skip, consumed = 0;
if (fn->loaded > fn->bufsize * 4 / 5)
return 0;
- if (len < 1000 && !*fci->eof)
+ if (len < 1000 && !*fc->input_eof)
return 0;
- padd->consumed = 0;
if (!padd->initialized) {
+ unsigned long rate = 0;
+ unsigned char channels = 0;
padd->decoder_length = aac_find_esds(inbuf, len, &skip);
PARA_INFO_LOG("decoder len: %d\n", padd->decoder_length);
if (padd->decoder_length < 0) {
- ret = NeAACDecInit(padd->decoder, inbuf,
+ ret = NeAACDecInit(padd->handle, inbuf,
len, &rate, &channels);
PARA_INFO_LOG("decoder init: %d\n", ret);
if (ret < 0) {
ret = -E_AACDEC_INIT;
goto out;
}
- padd->consumed = ret;
+ consumed = ret;
} else {
- padd->consumed += skip;
- p = inbuf + padd->consumed;
+ consumed += skip;
+ p = inbuf + consumed;
ret = -E_AACDEC_INIT;
- if (NeAACDecInit2(padd->decoder, p,
+ if (NeAACDecInit2(padd->handle, p,
padd->decoder_length, &rate,
&channels) < 0)
goto out;
}
- fci->samplerate = rate;
- fci->channels = channels;
+ fc->samplerate = rate;
+ fc->channels = channels;
PARA_INFO_LOG("rate: %u, channels: %d\n",
- fci->samplerate, fci->channels);
+ fc->samplerate, fc->channels);
padd->initialized = 1;
}
if (padd->decoder_length > 0) {
- padd->consumed = 0;
+ consumed = 0;
if (!padd->entry) {
- ret = aac_find_stco(inbuf + padd->consumed,
- len - padd->consumed, &skip);
+ ret = aac_find_entry_point(inbuf + consumed,
+ len - consumed, &skip);
if (ret < 0) {
ret = len;
goto out;
}
- padd->consumed += skip;
- padd->entry = aac_read_int32(inbuf + padd->consumed);
- PARA_INFO_LOG("entry: %lu\n", padd->entry);
+ consumed += skip;
+ padd->entry = ret;
+ PARA_INFO_LOG("entry: %zu\n", padd->entry);
}
ret = len;
if (padd->consumed_total + len < padd->entry)
goto out;
if (padd->consumed_total < padd->entry)
- padd->consumed = padd->entry - padd->consumed_total;
+ consumed = padd->entry - padd->consumed_total;
}
- for (; padd->consumed < len; padd->consumed++)
- if ((inbuf[padd->consumed] & 0xfe) == 0x20)
+ for (; consumed < len;consumed++)
+ if ((inbuf[consumed] & 0xfe) == 0x20)
break;
- if (padd->consumed >= len)
+ if (consumed >= len)
goto success;
- p = inbuf + padd->consumed;
- outbuffer = NeAACDecDecode(padd->decoder, &padd->frame_info, p,
- len - padd->consumed);
+ p = inbuf + consumed;
+ outbuffer = NeAACDecDecode(padd->handle, &padd->frame_info, p,
+ len - consumed);
ret = -E_AAC_DECODE;
if (padd->frame_info.error != 0) {
- PARA_ERROR_LOG("frame_error: %d, consumed: %lu + %d + %lu\n",
+ PARA_ERROR_LOG("frame_error: %d, consumed: %zu + %zd + %lu\n",
padd->frame_info.error, padd->consumed_total,
- padd->consumed, padd->frame_info.bytesconsumed);
+ consumed, padd->frame_info.bytesconsumed);
PARA_ERROR_LOG("%s\n", NeAACDecGetErrorMessage(
padd->frame_info.error));
- padd->consumed++; /* catch 21 */
+ consumed++; /* catch 21 */
goto success;
}
- padd->consumed += padd->frame_info.bytesconsumed;
- ret = padd->consumed;
+ consumed += padd->frame_info.bytesconsumed;
+ ret = consumed;
if (!padd->frame_info.samples)
goto out;
for (i = 0; i < padd->frame_info.samples; i++) {
fn->buf[fn->loaded++] = (s[i] >> 8) & 0xff;
}
success:
- ret = padd->consumed;
+ ret = consumed;
out:
if (ret > 0)
padd->consumed_total += ret;
return ret;
}
-static void mp4dec_open(struct filter_node *fn)
+static void aacdec_open(struct filter_node *fn)
{
- fn->private_data = para_calloc(sizeof(struct private_mp4dec_data));
- struct private_mp4dec_data *padd = fn->private_data;
+ fn->private_data = para_calloc(sizeof(struct private_aacdec_data));
+ struct private_aacdec_data *padd = fn->private_data;
fn->bufsize = AAC_OUTBUF_SIZE;
fn->buf = para_calloc(fn->bufsize);
- padd->decoder = aac_open();
+ padd->handle = aac_open();
}
-static void mp4dec_close(struct filter_node *fn)
+static void aacdec_close(struct filter_node *fn)
{
- struct private_mp4dec_data *padd = fn->private_data;
+ struct private_aacdec_data *padd = fn->private_data;
- NeAACDecClose(padd->decoder);
+ NeAACDecClose(padd->handle);
free(fn->buf);
fn->buf = NULL;
free(padd);
}
/**
- * the init function of the mp3dec filter
+ * the init function of the aacdec filter
*
* \sa filter::init
*/
void aacdec_init(struct filter *f)
{
- f->open = mp4dec_open;
- f->convert = mp4dec;
- f->close = mp4dec_close;
+ f->open = aacdec_open;
+ f->convert = aacdec;
+ f->close = aacdec_close;
}
projects / paraslash.git / blobdiff