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| author | Paul B Mahol <onemda@gmail.com> | 2012-11-26 19:52:40 +0000 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2012-11-26 19:52:40 +0000 |
| commit | 67be7fb43259d98414144916ceccbfff59fdde68 (patch) | |
| tree | 2729f41ddfd60891f3ead856dc83b8aeeea15497 /libavcodec/adpcm.c | |
| parent | ec51b3308effbd0f434db87efabe600cd1f8cb36 (diff) | |
| download | ffmpeg-67be7fb43259d98414144916ceccbfff59fdde68.tar.gz | |
adpcm: thp, afc: support multichannel decoding
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavcodec/adpcm.c')
| -rw-r--r-- | libavcodec/adpcm.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index 62e03e52be..df8aba93ed 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -99,10 +99,12 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx) case AV_CODEC_ID_ADPCM_EA: min_channels = 2; break; + case AV_CODEC_ID_ADPCM_AFC: case AV_CODEC_ID_ADPCM_EA_R1: case AV_CODEC_ID_ADPCM_EA_R2: case AV_CODEC_ID_ADPCM_EA_R3: case AV_CODEC_ID_ADPCM_EA_XAS: + case AV_CODEC_ID_ADPCM_THP: max_channels = 6; break; } @@ -596,7 +598,7 @@ static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb, bytestream2_skip(gb, 4); // channel size *coded_samples = bytestream2_get_be32(gb); *coded_samples -= *coded_samples % 14; - nb_samples = (buf_size - 80) / (8 * ch) * 14; + nb_samples = (buf_size - (8 + 36 * ch)) / (8 * ch) * 14; break; case AV_CODEC_ID_ADPCM_AFC: nb_samples = buf_size / (9 * ch) * 16; @@ -1305,20 +1307,20 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data, break; case AV_CODEC_ID_ADPCM_THP: { - int table[2][16]; + int table[6][16]; int ch; - for (i = 0; i < 2; i++) + for (i = 0; i < avctx->channels; i++) for (n = 0; n < 16; n++) table[i][n] = sign_extend(bytestream2_get_be16u(&gb), 16); /* Initialize the previous sample. */ - for (i = 0; i < 2; i++) { + for (i = 0; i < avctx->channels; i++) { c->status[i].sample1 = sign_extend(bytestream2_get_be16u(&gb), 16); c->status[i].sample2 = sign_extend(bytestream2_get_be16u(&gb), 16); } - for (ch = 0; ch <= st; ch++) { + for (ch = 0; ch < avctx->channels; ch++) { samples = samples_p[ch]; /* Read in every sample for this channel. */ |