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path: root/src/libreal/xine_real_audio_decoder.c
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Diffstat (limited to 'src/libreal/xine_real_audio_decoder.c')
-rw-r--r--src/libreal/xine_real_audio_decoder.c118
1 files changed, 14 insertions, 104 deletions
diff --git a/src/libreal/xine_real_audio_decoder.c b/src/libreal/xine_real_audio_decoder.c
index a90144b95..fe5bca245 100644
--- a/src/libreal/xine_real_audio_decoder.c
+++ b/src/libreal/xine_real_audio_decoder.c
@@ -218,13 +218,14 @@ static int init_codec (realdec_decoder_t *this, buf_element_t *buf) {
_x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "Cook");
if (!load_syms_linux (this, "cook.so", "cook.so.6.0"))
return 0;
+ this->block_align = subpacket_size;
break;
case BUF_AUDIO_ATRK:
_x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "Atrac");
if (!load_syms_linux (this, "atrc.so", "atrc.so.6.0"))
return 0;
- this->block_align = 384;
+ this->block_align = subpacket_size;
break;
case BUF_AUDIO_14_4:
@@ -352,13 +353,6 @@ static int init_codec (realdec_decoder_t *this, buf_element_t *buf) {
return 1;
}
-static unsigned char sipr_swaps[38][2]={
- {0,63},{1,22},{2,44},{3,90},{5,81},{7,31},{8,86},{9,58},{10,36},{12,68},
- {13,39},{14,73},{15,53},{16,69},{17,57},{19,88},{20,34},{21,71},{24,46},
- {25,94},{26,54},{28,75},{29,50},{32,70},{33,92},{35,74},{38,85},{40,56},
- {42,87},{43,65},{45,59},{48,79},{49,93},{51,89},{55,95},{61,76},{67,83},
- {77,80} };
-
static void realdec_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
realdec_decoder_t *this = (realdec_decoder_t *) this_gen;
@@ -385,116 +379,32 @@ static void realdec_decode_data (audio_decoder_t *this_gen, buf_element_t *buf)
this->pts = buf->pts;
size = buf->size;
-
while (size) {
+ int need;
- int needed;
-
- needed = this->frame_size - this->frame_num_bytes;
-
- if (needed>size) {
-
- memcpy (this->frame_buffer+this->frame_num_bytes, buf->content, size);
+ need = this->frame_size - this->frame_num_bytes;
+ if (size < need) {
+ memcpy (this->frame_buffer + this->frame_num_bytes,
+ buf->content + buf->size - size, size);
this->frame_num_bytes += size;
-
- lprintf ("buffering %d/%d bytes\n", this->frame_num_bytes, this->frame_size);
-
size = 0;
-
} else {
-
- int result;
- int len =-1;
- int n;
- int sps = this->sps;
- int w = this->w;
- int h = this->h;
audio_buffer_t *audio_buffer;
+ int n, len;
+ int result;
- lprintf ("buffering %d bytes\n", needed);
-
- memcpy (this->frame_buffer+this->frame_num_bytes, buf->content, needed);
-
- size -= needed;
+ memcpy (this->frame_buffer + this->frame_num_bytes,
+ buf->content + buf->size - size, need);
+ size -= need;
this->frame_num_bytes = 0;
- lprintf ("frame completed. reordering...\n");
- lprintf ("bs=%d sps=%d w=%d h=%d \n",/*sh->wf->nBlockAlign*/-1,sps,w,h);
-
- if (!sps) {
-
- int j,n;
- int bs=h*w*2/96; /* nibbles per subpacket */
- unsigned char *p=this->frame_buffer;
-
- /* 'sipr' way */
- /* demux_read_data(sh->ds, p, h*w); */
- for (n=0;n<38;n++){
- int i=bs*sipr_swaps[n][0];
- int o=bs*sipr_swaps[n][1];
- /* swap nibbles of block 'i' with 'o' TODO: optimize */
- for (j=0;j<bs;j++) {
- int x=(i&1) ? (p[(i>>1)]>>4) : (p[(i>>1)]&15);
- int y=(o&1) ? (p[(o>>1)]>>4) : (p[(o>>1)]&15);
- if (o&1)
- p[(o>>1)]=(p[(o>>1)]&0x0F)|(x<<4);
- else
- p[(o>>1)]=(p[(o>>1)]&0xF0)|x;
-
- if (i&1)
- p[(i>>1)]=(p[(i>>1)]&0x0F)|(y<<4);
- else
- p[(i>>1)]=(p[(i>>1)]&0xF0)|y;
-
- ++i;
- ++o;
- }
- }
- /*
- sh->a_in_buffer_size=
- sh->a_in_buffer_len=w*h;
- */
-
- } else {
- int x, y;
- uint8_t *s;
-
- /* 'cook' way */
-
- w /= sps; s = this->frame_buffer;
-
- for (y=0; y<h; y++)
-
- for (x=0; x<w; x++) {
-
- lprintf ("x=%d, y=%d, off %d\n",
- x, y, sps*(h*x+((h+1)/2)*(y&1)+(y>>1)));
-
- memcpy (this->frame_reordered+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)),
- s, sps);
- s+=sps;
-
- /* demux_read_data(sh->ds, sh->a_in_buffer+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)),
- sps); */
-
- }
- /*
- sh->a_in_buffer_size=
- sh->a_in_buffer_len=w*h*sps;
- */
- }
-
-#ifdef LOG
- xine_hexdump (this->frame_reordered, buf->size);
-#endif
-
n = 0;
- while (n<this->frame_size) {
+ while (n < this->frame_size) {
audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);
result = this->raDecode (this->context,
- this->frame_reordered+n,
+ this->frame_buffer + n,
this->block_align,
(char *) audio_buffer->mem, &len, -1);