diff options
Diffstat (limited to 'libavcodec/adpcm.c')
| -rw-r--r-- | libavcodec/adpcm.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index aa2a40f792..1259bd4df6 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -551,6 +551,11 @@ static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb, buf_size = FFMIN(buf_size, avctx->block_align); nb_samples = 1 + (buf_size - 4 * ch) * 2 / ch; break; + case AV_CODEC_ID_ADPCM_IMA_RAD: + if (avctx->block_align > 0) + buf_size = FFMIN(buf_size, avctx->block_align); + nb_samples = (buf_size - 4 * ch) * 2 / ch; + break; case AV_CODEC_ID_ADPCM_IMA_WAV: if (avctx->block_align > 0) buf_size = FFMIN(buf_size, avctx->block_align); @@ -912,6 +917,31 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data, *samples++ = adpcm_ima_oki_expand_nibble(&c->status[st], v & 0x0F); } break; + case AV_CODEC_ID_ADPCM_IMA_RAD: + for (channel = 0; channel < avctx->channels; channel++) { + cs = &c->status[channel]; + cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16); + cs->predictor = sign_extend(bytestream2_get_le16u(&gb), 16); + if (cs->step_index > 88u){ + av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n", + channel, cs->step_index); + return AVERROR_INVALIDDATA; + } + } + for (n = 0; n < nb_samples / 2; n++) { + int byte[2]; + + byte[0] = bytestream2_get_byteu(&gb); + if (st) + byte[1] = bytestream2_get_byteu(&gb); + for(channel = 0; channel < avctx->channels; channel++) { + *samples++ = adpcm_ima_expand_nibble(&c->status[channel], byte[channel] & 0x0F, 3); + } + for(channel = 0; channel < avctx->channels; channel++) { + *samples++ = adpcm_ima_expand_nibble(&c->status[channel], byte[channel] >> 4 , 3); + } + } + break; case AV_CODEC_ID_ADPCM_IMA_WS: if (c->vqa_version == 3) { for (channel = 0; channel < avctx->channels; channel++) { @@ -1489,6 +1519,7 @@ ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_EA_SEAD, sample_fmts_s16, adpcm_ima_ea_sead ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_ISS, sample_fmts_s16, adpcm_ima_iss, "ADPCM IMA Funcom ISS"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_OKI, sample_fmts_s16, adpcm_ima_oki, "ADPCM IMA Dialogic OKI"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_QT, sample_fmts_s16p, adpcm_ima_qt, "ADPCM IMA QuickTime"); +ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_RAD, sample_fmts_s16, adpcm_ima_rad, "ADPCM IMA Radical"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_SMJPEG, sample_fmts_s16, adpcm_ima_smjpeg, "ADPCM IMA Loki SDL MJPEG"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WAV, sample_fmts_s16p, adpcm_ima_wav, "ADPCM IMA WAV"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WS, sample_fmts_both, adpcm_ima_ws, "ADPCM IMA Westwood"); |