From 220506d23f39da3e23d3d42fb7061f19cec8052c Mon Sep 17 00:00:00 2001 From: Justin Ruggles Date: Mon, 23 Jan 2012 14:57:32 -0500 Subject: avcodec: add a new codec_id for CRYO APC IMA ADPCM. The stereo layout and extradata is significantly different from that in Westwood IMA ADPCM, so a separate codec_id is warranted. --- libavcodec/adpcm.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'libavcodec/adpcm.c') diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index b319635ed4..64bea6a5da 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -120,8 +120,8 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx) return -1; } break; - case CODEC_ID_ADPCM_IMA_WS: - if (avctx->extradata && avctx->extradata_size == 2 * 4) { + case CODEC_ID_ADPCM_IMA_APC: + if (avctx->extradata && avctx->extradata_size >= 8) { c->status[0].predictor = AV_RL32(avctx->extradata); c->status[1].predictor = AV_RL32(avctx->extradata + 4); } @@ -359,6 +359,7 @@ static int get_nb_samples(AVCodecContext *avctx, const uint8_t *buf, break; /* simple 4-bit adpcm */ case CODEC_ID_ADPCM_CT: + case CODEC_ID_ADPCM_IMA_APC: case CODEC_ID_ADPCM_IMA_EA_SEAD: case CODEC_ID_ADPCM_IMA_WS: case CODEC_ID_ADPCM_YAMAHA: @@ -774,6 +775,7 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data, } break; case CODEC_ID_ADPCM_IMA_WS: + case CODEC_ID_ADPCM_IMA_APC: while (src < buf + buf_size) { uint8_t v = *src++; *samples++ = adpcm_ima_expand_nibble(&c->status[0], v >> 4 , 3); @@ -1220,6 +1222,7 @@ ADPCM_DECODER(CODEC_ID_ADPCM_EA_R2, adpcm_ea_r2, "ADPCM Electronic Arts R2"); ADPCM_DECODER(CODEC_ID_ADPCM_EA_R3, adpcm_ea_r3, "ADPCM Electronic Arts R3"); ADPCM_DECODER(CODEC_ID_ADPCM_EA_XAS, adpcm_ea_xas, "ADPCM Electronic Arts XAS"); ADPCM_DECODER(CODEC_ID_ADPCM_IMA_AMV, adpcm_ima_amv, "ADPCM IMA AMV"); +ADPCM_DECODER(CODEC_ID_ADPCM_IMA_APC, adpcm_ima_apc, "ADPCM IMA CRYO APC"); ADPCM_DECODER(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3, "ADPCM IMA Duck DK3"); ADPCM_DECODER(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4, "ADPCM IMA Duck DK4"); ADPCM_DECODER(CODEC_ID_ADPCM_IMA_EA_EACS, adpcm_ima_ea_eacs, "ADPCM IMA Electronic Arts EACS"); -- cgit v1.2.3