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| author | Vladimir Voroshilov <voroshil@gmail.com> | 2009-06-11 13:51:28 +0700 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-09-24 21:11:00 +0200 |
| commit | 50cad2562522142f15ef0370df07939652c9feb3 (patch) | |
| tree | b451516f8309d8d34ab64d3a1ad3b8a7585f9e19 /libavcodec/g729dec.c | |
| parent | d1a643e749f7b4495f0c4fabf9177f730fbd5574 (diff) | |
| download | ffmpeg-50cad2562522142f15ef0370df07939652c9feb3.tar.gz | |
Frame erasure support for pitch delay decoding
Diffstat (limited to 'libavcodec/g729dec.c')
| -rw-r--r-- | libavcodec/g729dec.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/g729dec.c b/libavcodec/g729dec.c index 42783d61fb..1e29a7e9a2 100644 --- a/libavcodec/g729dec.c +++ b/libavcodec/g729dec.c @@ -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_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) pitch_delay_3x = 3 * ctx->pitch_delay_int_prev; else @@ -348,6 +350,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, ( voicing && frame_erasure) ? 0 : ctx->gain_code, 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; } |