Signed-off-by: Zane van Iperen <z...@zanevaniperen.com> --- Changelog | 1 + doc/general.texi | 1 + libavcodec/Makefile | 1 + libavcodec/adpcm.c | 33 +++++++++++++++++++++++++++++++++ libavcodec/adpcm_data.c | 13 +++++++++++++ libavcodec/adpcm_data.h | 2 ++ libavcodec/allcodecs.c | 1 + libavcodec/avcodec.h | 1 + libavcodec/codec_desc.c | 7 +++++++ libavcodec/version.h | 4 ++-- 10 files changed, 62 insertions(+), 2 deletions(-)
diff --git a/Changelog b/Changelog index e6db88af07..f1be5d674e 100644 --- a/Changelog +++ b/Changelog @@ -56,6 +56,7 @@ version <next>: - CRI HCA demuxer - overlay_cuda filter - switch from AvxSynth to AviSynth+ on Linux +- Cunning Developments ADPCM decoder version 4.2: diff --git a/doc/general.texi b/doc/general.texi index 4adcc9e742..4aaf506e56 100644 --- a/doc/general.texi +++ b/doc/general.texi @@ -1102,6 +1102,7 @@ following image formats are supported: @item ADPCM G.726 @tab X @tab X @item ADPCM IMA AMV @tab @tab X @tab Used in AMV files +@item ADPCM IMA Cunning Developments @tab @tab X @item ADPCM IMA Electronic Arts EACS @tab @tab X @item ADPCM IMA Electronic Arts SEAD @tab @tab X @item ADPCM IMA Funcom @tab @tab X diff --git a/libavcodec/Makefile b/libavcodec/Makefile index c1c9a44f2b..e799077f09 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -839,6 +839,7 @@ OBJS-$(CONFIG_ADPCM_IMA_AMV_DECODER) += adpcm.o adpcm_data.o OBJS-$(CONFIG_ADPCM_IMA_ALP_DECODER) += adpcm.o adpcm_data.o OBJS-$(CONFIG_ADPCM_IMA_APC_DECODER) += adpcm.o adpcm_data.o OBJS-$(CONFIG_ADPCM_IMA_APM_DECODER) += adpcm.o adpcm_data.o +OBJS-$(CONFIG_ADPCM_IMA_CUNNING_DECODER) += adpcm.o adpcm_data.o OBJS-$(CONFIG_ADPCM_IMA_DAT4_DECODER) += adpcm.o adpcm_data.o OBJS-$(CONFIG_ADPCM_IMA_DK3_DECODER) += adpcm.o adpcm_data.o OBJS-$(CONFIG_ADPCM_IMA_DK4_DECODER) += adpcm.o adpcm_data.o diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index e9abddc43c..89c4572538 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -16,6 +16,7 @@ * Simon & Schuster Interactive ADPCM decoder by Zane van Iperen (z...@zanevaniperen.com) * Ubisoft ADPCM decoder by Zane van Iperen (z...@zanevaniperen.com) * High Voltage Software ALP decoder by Zane van Iperen (z...@zanevaniperen.com) + * Cunning Developments decoder by Zane van Iperen (z...@zanevaniperen.com) * * This file is part of FFmpeg. * @@ -109,6 +110,9 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx) unsigned int max_channels = 2; switch(avctx->codec->id) { + case AV_CODEC_ID_ADPCM_IMA_CUNNING: + max_channels = 1; + break; case AV_CODEC_ID_ADPCM_DTK: case AV_CODEC_ID_ADPCM_EA: min_channels = 2; @@ -325,6 +329,26 @@ static inline int16_t adpcm_ima_mtf_expand_nibble(ADPCMChannelStatus *c, int nib return (int16_t)c->predictor; } +static inline int16_t adpcm_ima_cunning_expand_nibble(ADPCMChannelStatus *c, int8_t nibble) +{ + int step_index; + int predictor; + int step; + + nibble = sign_extend(nibble & 0xF, 4); + + step = ff_adpcm_ima_cunning_step_table[c->step_index]; + step_index = c->step_index + ff_adpcm_ima_cunning_index_table[abs(nibble)]; + step_index = av_clip(step_index, 0, 60); + + predictor = c->predictor + (step * nibble); + + c->predictor = av_clip_int16(predictor); + c->step_index = step_index; + + return (int16_t)c->predictor; +} + static inline int16_t adpcm_ima_wav_expand_nibble(ADPCMChannelStatus *c, GetBitContext *gb, int bps) { int nibble, step_index, predictor, sign, delta, diff, step, shift; @@ -713,6 +737,7 @@ static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb, /* simple 4-bit adpcm */ case AV_CODEC_ID_ADPCM_CT: case AV_CODEC_ID_ADPCM_IMA_APC: + case AV_CODEC_ID_ADPCM_IMA_CUNNING: case AV_CODEC_ID_ADPCM_IMA_EA_SEAD: case AV_CODEC_ID_ADPCM_IMA_OKI: case AV_CODEC_ID_ADPCM_IMA_WS: @@ -1304,6 +1329,13 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data, samples += avctx->channels; } break; + case AV_CODEC_ID_ADPCM_IMA_CUNNING: + while (bytestream2_get_bytes_left(&gb) > 0) { + int v = bytestream2_get_byteu(&gb); + *samples++ = adpcm_ima_cunning_expand_nibble(&c->status[0], v & 0x0F); + *samples++ = adpcm_ima_cunning_expand_nibble(&c->status[0], v >> 4); + } + break; case AV_CODEC_ID_ADPCM_IMA_OKI: while (bytestream2_get_bytes_left(&gb) > 0) { int v = bytestream2_get_byteu(&gb); @@ -2053,6 +2085,7 @@ ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_XAS, sample_fmts_s16p, adpcm_ea_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_APM, sample_fmts_s16, adpcm_ima_apm, "ADPCM IMA Ubisoft APM"); +ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_CUNNING, sample_fmts_s16, adpcm_ima_cunning, "ADPCM IMA Cunning Developments"); 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"); diff --git a/libavcodec/adpcm_data.c b/libavcodec/adpcm_data.c index 4cce0a5857..cb9d20948e 100644 --- a/libavcodec/adpcm_data.c +++ b/libavcodec/adpcm_data.c @@ -177,3 +177,16 @@ const int16_t ff_adpcm_mtaf_stepsize[32][16] = { { 424, 1273, 2121, 2970, 3819, 4668, 5516, 6365, -424, -1273, -2121, -2970, -3819, -4668, -5516, -6365, }, }; + +const int8_t ff_adpcm_ima_cunning_index_table[8] = { + -1, -1, -1, -1, 1, 2, 3, 4, +}; + +const int16_t ff_adpcm_ima_cunning_step_table[61] = { + 1, 1, 1, 1, 2, 2, 3, 3, 4, 5, + 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, + 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, + 192, 224, 256, 320, 384, 448, 512, 640, 768, 896, + 1024, 1280, 1536, 1792, 2048, 2560, 3072, 3584, 4096, 5120, + 6144, 7168, 8192, 10240, 12288, 14336, 16384, 20480, 24576, 28672, 0 +}; diff --git a/libavcodec/adpcm_data.h b/libavcodec/adpcm_data.h index 5a687131d8..fa8a03ee1f 100644 --- a/libavcodec/adpcm_data.h +++ b/libavcodec/adpcm_data.h @@ -42,5 +42,7 @@ extern const int16_t ff_adpcm_yamaha_indexscale[]; extern const int8_t ff_adpcm_yamaha_difflookup[]; extern const int16_t ff_adpcm_afc_coeffs[2][16]; extern const int16_t ff_adpcm_mtaf_stepsize[32][16]; +extern const int8_t ff_adpcm_ima_cunning_index_table[8]; +extern const int16_t ff_adpcm_ima_cunning_step_table[61]; #endif /* AVCODEC_ADPCM_DATA_H */ diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index b3184af954..8c5da63a82 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -604,6 +604,7 @@ extern AVCodec ff_adpcm_ima_amv_decoder; extern AVCodec ff_adpcm_ima_alp_decoder; extern AVCodec ff_adpcm_ima_apc_decoder; extern AVCodec ff_adpcm_ima_apm_decoder; +extern AVCodec ff_adpcm_ima_cunning_decoder; extern AVCodec ff_adpcm_ima_dat4_decoder; extern AVCodec ff_adpcm_ima_dk3_decoder; extern AVCodec ff_adpcm_ima_dk4_decoder; diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 8fc0ad92c9..14f925b5ed 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -554,6 +554,7 @@ enum AVCodecID { AV_CODEC_ID_ADPCM_IMA_APM, AV_CODEC_ID_ADPCM_IMA_ALP, AV_CODEC_ID_ADPCM_IMA_MTF, + AV_CODEC_ID_ADPCM_IMA_CUNNING, /* AMR */ AV_CODEC_ID_AMR_NB = 0x12000, diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c index ece6eadae4..68151d4af9 100644 --- a/libavcodec/codec_desc.c +++ b/libavcodec/codec_desc.c @@ -2339,6 +2339,13 @@ static const AVCodecDescriptor codec_descriptors[] = { .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Capcom's MT Framework"), .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY, }, + { + .id = AV_CODEC_ID_ADPCM_IMA_CUNNING, + .type = AVMEDIA_TYPE_AUDIO, + .name = "adpcm_ima_cunning", + .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Cunning Developments"), + .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY, + }, /* AMR */ { diff --git a/libavcodec/version.h b/libavcodec/version.h index f4d1d4de21..e62d1a7925 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -28,8 +28,8 @@ #include "libavutil/version.h" #define LIBAVCODEC_VERSION_MAJOR 58 -#define LIBAVCODEC_VERSION_MINOR 77 -#define LIBAVCODEC_VERSION_MICRO 101 +#define LIBAVCODEC_VERSION_MINOR 78 +#define LIBAVCODEC_VERSION_MICRO 100 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ LIBAVCODEC_VERSION_MINOR, \ -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".