RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-04-17 20:46:31 +00:00
Code Issues Projects Releases Wiki Activity

Frame erasure support for pitch delay decoding

Browse Source
This commit is contained in:
Vladimir Voroshilov 2009-06-11 13:51:28 +07:00 committed by Michael Niedermayer
parent d1a643e749
commit 50cad25625
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
libavcodec/g729dec.c
View File

@ -306,7 +306,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
gc_1st_index = get_bits(&gb, format.gc_1st_index_bits); gc_1st_index = get_bits(&gb, format.gc_1st_index_bits);
gc_2nd_index = get_bits(&gb, format.gc_2nd_index_bits); gc_2nd_index = get_bits(&gb, format.gc_2nd_index_bits);
if(!i) { if (frame_erasure)
pitch_delay_3x = 3 * ctx->pitch_delay_int_prev;
else if(!i) {
if (bad_pitch) if (bad_pitch)
pitch_delay_3x = 3 * ctx->pitch_delay_int_prev; pitch_delay_3x = 3 * ctx->pitch_delay_int_prev;
else else
@ -348,6 +350,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
( voicing && frame_erasure) ? 0 : ctx->gain_code, ( voicing && frame_erasure) ? 0 : ctx->gain_code,
1 << 13, 14, SUBFRAME_SIZE); 1 << 13, 14, SUBFRAME_SIZE);
if (frame_erasure)
ctx->pitch_delay_int_prev = FFMIN(ctx->pitch_delay_int_prev + 1, PITCH_DELAY_MAX);
else
ctx->pitch_delay_int_prev = pitch_delay_int; ctx->pitch_delay_int_prev = pitch_delay_int;
} }