diff options
| author | Oded Shimon <ods15@ods15.dyndns.org> | 2006-10-02 06:08:11 +0000 |
|---|---|---|
| committer | Oded Shimon <ods15@ods15.dyndns.org> | 2006-10-02 06:08:11 +0000 |
| commit | e3df7fc64c1cbadc9462b7dd8adaf811070d3086 (patch) | |
| tree | 478e3f2b14f80ed4fa0751501cfccf00985592d4 /libavcodec/vorbis_enc.c | |
| parent | 9d74ff0e55114a5b811fe31fe1f1d9ff4f2c3afa (diff) | |
Original Commit: r71 | ods15 | 2006-09-28 21:00:24 +0300 (Thu, 28 Sep 2006) | 2 lines
residue type 2
Originally committed as revision 6476 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/vorbis_enc.c')
| -rw-r--r-- | libavcodec/vorbis_enc.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/libavcodec/vorbis_enc.c b/libavcodec/vorbis_enc.c index 53fb848f37..2366840d56 100644 --- a/libavcodec/vorbis_enc.c +++ b/libavcodec/vorbis_enc.c @@ -807,6 +807,9 @@ static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext int partitions = (rc->end - rc->begin) / psize; int classes[channels][partitions]; int classwords = venc->codebooks[rc->classbook].ndimentions; + int real_ch = channels; + + if (rc->type == 2) channels = 1; for (pass = 0; pass < 8; pass++) { p = 0; @@ -827,14 +830,26 @@ static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext float * buf = coeffs + samples*j + rc->begin + p*psize; if (nbook == -1) continue; - assert(rc->type == 0); + assert(rc->type == 0 || rc->type == 2); assert(!(psize % book->ndimentions)); + if (rc->type == 0) { for (k = 0; k < psize; k += book->ndimentions) { float * a = put_vector(book, pb, &buf[k]); int l; for (l = 0; l < book->ndimentions; l++) buf[k + l] -= a[l]; } + } else { + for (k = 0; k < psize; k += book->ndimentions) { + int dim = book->ndimentions, s = rc->begin + p * psize, l; + float vec[dim], * pvec = vec, * a; + for (l = s + k; l < s + k + dim; l++) + *pvec++ = coeffs[(l % real_ch) * samples + l / real_ch]; + a = put_vector(book, pb, vec); + for (l = s + k; l < s + k + dim; l++) + coeffs[(l % real_ch) * samples + l / real_ch] -= *a++; + } + } } } } |