diff options
| author | Paul B Mahol | 2016-04-03 12:55:17 +0200 |
|---|---|---|
| committer | Paul B Mahol | 2016-04-05 10:48:59 +0200 |
| commit | 8a4c3f525831a97e5c83b059cf257bc9a64a5466 (patch) | |
| tree | c7947bbfbd66dea8caddfc7b4f54bcf17bc9b7b9 /libavcodec/adpcm.c | |
| parent | 7d49abdf4750d63cd9bf71235d6f064152310fff (diff) | |
avcodec: add adpcm dat4 decoder
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavcodec/adpcm.c')
| -rw-r--r-- | libavcodec/adpcm.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index c4a0a18690..5d8aa41ae9 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -110,6 +110,7 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx) case AV_CODEC_ID_ADPCM_PSX: max_channels = 8; break; + case AV_CODEC_ID_ADPCM_IMA_DAT4: case AV_CODEC_ID_ADPCM_THP: case AV_CODEC_ID_ADPCM_THP_LE: max_channels = 14; @@ -144,6 +145,7 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx) switch(avctx->codec->id) { case AV_CODEC_ID_ADPCM_AICA: + case AV_CODEC_ID_ADPCM_IMA_DAT4: case AV_CODEC_ID_ADPCM_IMA_QT: case AV_CODEC_ID_ADPCM_IMA_WAV: case AV_CODEC_ID_ADPCM_4XM: @@ -533,6 +535,7 @@ static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb, header_size = 0; switch (avctx->codec->id) { case AV_CODEC_ID_ADPCM_4XM: + case AV_CODEC_ID_ADPCM_IMA_DAT4: case AV_CODEC_ID_ADPCM_IMA_ISS: header_size = 4 * ch; break; case AV_CODEC_ID_ADPCM_IMA_AMV: header_size = 8; break; case AV_CODEC_ID_ADPCM_IMA_SMJPEG: header_size = 4 * ch; break; @@ -984,6 +987,18 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data, *samples++ = adpcm_ima_expand_nibble(&c->status[st], v2, 3); } break; + case AV_CODEC_ID_ADPCM_IMA_DAT4: + for (channel = 0; channel < avctx->channels; channel++) { + cs = &c->status[channel]; + samples = samples_p[channel]; + bytestream2_skip(&gb, 4); + for (n = 0; n < nb_samples; n += 2) { + int v = bytestream2_get_byteu(&gb); + *samples++ = adpcm_ima_expand_nibble(cs, v >> 4 , 3); + *samples++ = adpcm_ima_expand_nibble(cs, v & 0x0F, 3); + } + } + break; case AV_CODEC_ID_ADPCM_IMA_APC: while (bytestream2_get_bytes_left(&gb) > 0) { int v = bytestream2_get_byteu(&gb); @@ -1670,6 +1685,7 @@ ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R3, sample_fmts_s16p, adpcm_ea_r3, ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_XAS, sample_fmts_s16p, adpcm_ea_xas, "ADPCM Electronic Arts XAS"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_AMV, sample_fmts_s16, adpcm_ima_amv, "ADPCM IMA AMV"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_APC, sample_fmts_s16, adpcm_ima_apc, "ADPCM IMA CRYO APC"); +ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DAT4, sample_fmts_s16, adpcm_ima_dat4, "ADPCM IMA Eurocom DAT4"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK3, sample_fmts_s16, adpcm_ima_dk3, "ADPCM IMA Duck DK3"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK4, sample_fmts_s16, adpcm_ima_dk4, "ADPCM IMA Duck DK4"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_EA_EACS, sample_fmts_s16, adpcm_ima_ea_eacs, "ADPCM IMA Electronic Arts EACS"); |