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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-07-10 14:53:05 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-07-10 15:07:20 +0200 |
| commit | 564909093a318a6520a7bac7353ddea325e9f6fb (patch) | |
| tree | 025f724dfd05662fd9cade83d5bd7cbe87c3bc74 /libavcodec/qdm2.c | |
| parent | 2c0ec526e2c3cf24766910486c710bf600ef2f44 (diff) | |
| parent | adadc3f2443d25b375e21e801516ccfd78e0b080 (diff) | |
| download | ffmpeg-564909093a318a6520a7bac7353ddea325e9f6fb.tar.gz | |
Merge commit 'adadc3f2443d25b375e21e801516ccfd78e0b080'
* commit 'adadc3f2443d25b375e21e801516ccfd78e0b080':
qdm2: refactor joined stereo support
Conflicts:
libavcodec/qdm2.c
See: 2b12d1ffd841cf57976b124c1882e4a23a7c5f61
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/qdm2.c')
| -rw-r--r-- | libavcodec/qdm2.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c index 76845909f6..b9529e7701 100644 --- a/libavcodec/qdm2.c +++ b/libavcodec/qdm2.c @@ -815,7 +815,7 @@ static int synthfilt_build_sb_samples(QDM2Context *q, GetBitContext *gb, int length, int sb_min, int sb_max) { int sb, j, k, n, ch, run, channels; - int joined_stereo, zero_encoding, chs; + int joined_stereo, zero_encoding; int type34_first; float type34_div = 0; float type34_predictor; @@ -991,16 +991,18 @@ static int synthfilt_build_sb_samples(QDM2Context *q, GetBitContext *gb, } if (joined_stereo) { - float tmp[10][MPA_MAX_CHANNELS]; - for (k = 0; k < run; k++) { - tmp[k][0] = samples[k]; - if ((j + k) < 128) - tmp[k][1] = (sign_bits[(j + k) / 8]) ? -samples[k] : samples[k]; + for (k = 0; k < run && j + k < 128; k++) { + q->sb_samples[0][j + k][sb] = + q->tone_level[0][sb][(j + k) / 2] * samples[k]; + if (q->nb_channels == 2) { + if (sign_bits[(j + k) / 8]) + q->sb_samples[1][j + k][sb] = + q->tone_level[1][sb][(j + k) / 2] * -samples[k]; + else + q->sb_samples[1][j + k][sb] = + q->tone_level[1][sb][(j + k) / 2] * samples[k]; + } } - for (chs = 0; chs < q->nb_channels; chs++) - for (k = 0; k < run; k++) - if ((j + k) < 128) - q->sb_samples[chs][j + k][sb] = q->tone_level[chs][sb][((j + k)/2)] * tmp[k][chs]; } else { for (k = 0; k < run; k++) if ((j + k) < 128) |