eden-emu/opus
19
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Various multistream fixes.

Browse source 
Fixes the encoder bitrate CTLs to correctly apply to all streams,
prevents the MS encoder from starving the latter streams by not
reserving a reasonable minimum amount of space for them.
This commit is contained in:
Gregory Maxwell 2011-12-14 00:52:24 -05:00 • committed by Jean-Marc Valin
parent e7028175af
commit 9cca20aaaf
1 changed files with 15 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

21
src/opus_multistream.c
View file

@ -217,7 +217,8 @@ OpusMSEncoder *opus_multistream_encoder_create(
return st;
}
/* Max size in case the encoder decides to return three frames */
#define MS_FRAME_TMP (3*1275+7)
#ifdef FIXED_POINT
int opus_multistream_encode(
#else
@ -236,8 +237,7 @@ int opus_multistream_encode_float(
char *ptr;
int tot_size;
VARDECL(opus_val16, buf);
/* Max size in case the encoder decides to return three frames */
unsigned char tmp_data[3*1275+7];
unsigned char tmp_data[MS_FRAME_TMP];
OpusRepacketizer rp;
ALLOC_STACK;
@ -246,7 +246,7 @@ int opus_multistream_encode_float(
coupled_size = opus_encoder_get_size(2);
mono_size = opus_encoder_get_size(1);
if (max_data_bytes < 2*st->layout.nb_streams-1)
if (max_data_bytes < 4*st->layout.nb_streams-1)
{
RESTORE_STACK;
return OPUS_BUFFER_TOO_SMALL;
@ -280,8 +280,9 @@ int opus_multistream_encode_float(
}
/* number of bytes left (+Toc) */
curr_max = max_data_bytes - tot_size;
/* Reserve one byte for the last stream and 2 for the others */
curr_max -= 2*(st->layout.nb_streams-s)-1;
/* Reserve three bytes for the last stream and four for the others */
curr_max -= IMAX(0,4*(st->layout.nb_streams-s-1)-1);
curr_max = IMIN(curr_max,MS_FRAME_TMP);
len = opus_encode_native(enc, buf, frame_size, tmp_data, curr_max);
if (len<0)
{
@ -375,6 +376,10 @@ int opus_multistream_encoder_ctl(OpusMSEncoder *st, int request, ...)
{
OpusEncoder *enc;
enc = (OpusEncoder*)ptr;
if (s < st->layout.nb_coupled_streams)
ptr += align(coupled_size);
else
ptr += align(mono_size);
opus_encoder_ctl(enc, request, value * (s < st->layout.nb_coupled_streams ? 2 : 1));
}
}
@ -389,6 +394,10 @@ int opus_multistream_encoder_ctl(OpusMSEncoder *st, int request, ...)
opus_int32 rate;
OpusEncoder *enc;
enc = (OpusEncoder*)ptr;
if (s < st->layout.nb_coupled_streams)
ptr += align(coupled_size);
else
ptr += align(mono_size);
opus_encoder_ctl(enc, request, &rate);
*value += rate;
}