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avcodec: add decoder for Simon & Schuster Interactive's ADPCM variant

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Adds support for the ADPCM variant used by some Simon & Schuster
Interactive games such as Real War, and Real War: Rogue States.

Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Zane van Iperen 2020-02-06 06:58:10 +00:00 committed by Michael Niedermayer
parent 31d7b17c46
commit 5d038a86d6
6 changed files with 22 additions and 2 deletions
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1
libavcodec/Makefile
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@ -844,6 +844,7 @@ OBJS-$(CONFIG_ADPCM_IMA_OKI_DECODER) += adpcm.o adpcm_data.o
OBJS-$(CONFIG_ADPCM_IMA_QT_DECODER) += adpcm.o adpcm_data.o
OBJS-$(CONFIG_ADPCM_IMA_QT_ENCODER) += adpcmenc.o adpcm_data.o
OBJS-$(CONFIG_ADPCM_IMA_RAD_DECODER) += adpcm.o adpcm_data.o
OBJS-$(CONFIG_ADPCM_IMA_SSI_DECODER) += adpcm.o adpcm_data.o
OBJS-$(CONFIG_ADPCM_IMA_SMJPEG_DECODER) += adpcm.o adpcm_data.o
OBJS-$(CONFIG_ADPCM_IMA_WAV_DECODER) += adpcm.o adpcm_data.o
OBJS-$(CONFIG_ADPCM_IMA_WAV_ENCODER) += adpcmenc.o adpcm_data.o

10
libavcodec/adpcm.c
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@ -13,6 +13,7 @@
* MAXIS EA ADPCM decoder by Robert Marston (rmarston@gmail.com)
* THP ADPCM decoder by Marco Gerards (mgerards@xs4all.nl)
* Argonaut Games ADPCM decoder by Zane van Iperen (zane@zanevaniperen.com)
* Simon & Schuster Interactive ADPCM decoder by Zane van Iperen (zane@zanevaniperen.com)
*
* This file is part of FFmpeg.
*
@ -620,6 +621,7 @@ static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb,
case AV_CODEC_ID_ADPCM_IMA_WS:
case AV_CODEC_ID_ADPCM_YAMAHA:
case AV_CODEC_ID_ADPCM_AICA:
case AV_CODEC_ID_ADPCM_IMA_SSI:
nb_samples = buf_size * 2 / ch;
break;
}
@ -1172,6 +1174,13 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
*samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);
}
break;
case AV_CODEC_ID_ADPCM_IMA_SSI:
while (bytestream2_get_bytes_left(&gb) > 0) {
int v = bytestream2_get_byteu(&gb);
*samples++ = adpcm_ima_qt_expand_nibble(&c->status[0], v >> 4 , 3);
*samples++ = adpcm_ima_qt_expand_nibble(&c->status[st], v & 0x0F, 3);
}
break;
case AV_CODEC_ID_ADPCM_IMA_OKI:
while (bytestream2_get_bytes_left(&gb) > 0) {
int v = bytestream2_get_byteu(&gb);
@ -1906,6 +1915,7 @@ ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_ISS, sample_fmts_s16, adpcm_ima_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_SSI, sample_fmts_s16, adpcm_ima_ssi, "ADPCM IMA Simon & Schuster Interactive");
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");

1
libavcodec/allcodecs.c
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@ -609,6 +609,7 @@ extern AVCodec ff_adpcm_ima_oki_decoder;
extern AVCodec ff_adpcm_ima_qt_encoder;
extern AVCodec ff_adpcm_ima_qt_decoder;
extern AVCodec ff_adpcm_ima_rad_decoder;
extern AVCodec ff_adpcm_ima_ssi_decoder;
extern AVCodec ff_adpcm_ima_smjpeg_decoder;
extern AVCodec ff_adpcm_ima_wav_encoder;
extern AVCodec ff_adpcm_ima_wav_decoder;

1
libavcodec/avcodec.h
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@ -546,6 +546,7 @@ enum AVCodecID {
AV_CODEC_ID_ADPCM_MTAF,
AV_CODEC_ID_ADPCM_AGM,
AV_CODEC_ID_ADPCM_ARGO,
AV_CODEC_ID_ADPCM_IMA_SSI,
/* AMR */
AV_CODEC_ID_AMR_NB = 0x12000,

7
libavcodec/codec_desc.c
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@ -2304,6 +2304,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
.long_name = NULL_IF_CONFIG_SMALL("ADPCM Argonaut Games"),
.props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
},
{
.id = AV_CODEC_ID_ADPCM_IMA_SSI,
.type = AVMEDIA_TYPE_AUDIO,
.name = "adpcm_ima_ssi",
.long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Simon & Schuster Interactive"),
.props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
},
/* AMR */
{

4
libavcodec/version.h
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@ -28,8 +28,8 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 58
#define LIBAVCODEC_VERSION_MINOR 67
#define LIBAVCODEC_VERSION_MICRO 101
#define LIBAVCODEC_VERSION_MINOR 68
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \