From patchwork Sat Mar 7 14:15:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zane van Iperen X-Patchwork-Id: 18079 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id BBDE6449756 for ; Sat, 7 Mar 2020 16:15:56 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id A78CE68AF0D; Sat, 7 Mar 2020 16:15:56 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail1.protonmail.ch (mail1.protonmail.ch [185.70.40.18]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 8340268AEC5 for ; Sat, 7 Mar 2020 16:15:50 +0200 (EET) Date: Sat, 07 Mar 2020 14:15:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zanevaniperen.com; s=protonmail; t=1583590549; bh=Ut2KnjJEbuRsVMqzHKh6XZoU5Bl/DTo3Kdk5Z7fZYkU=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References: Feedback-ID:From; b=I9yEJq46+V4RpZOMmGEvr0Q80YPBnm8fKdvdAxxCTMxbykg9VYMarejTUauMidhRn ZKgpkb18s96p37a3m5T73NM6ehXb6N7+SbtOsVcurIZlMkFPyQ2PebaEianqmlG87K wz1xu3CPWX1vIJTnpuVdXADh7Y0Z/HOwQs0CvRNk= To: ffmpeg-devel@ffmpeg.org From: Zane van Iperen Message-ID: <20200307141326.24374-2-zane@zanevaniperen.com> In-Reply-To: <20200307141326.24374-1-zane@zanevaniperen.com> References: <20200307141326.24374-1-zane@zanevaniperen.com> Feedback-ID: xylLYHwBzJW7F28tHN-oL9EBm6h5yqtCqG6YwPpJ2oMwBYJT6-HxTnFTF6p18axLiSywX61iUfj4CElBGg8-GA==:Ext:ProtonMail MIME-Version: 1.0 X-Spam-Status: No, score=-1.2 required=7.0 tests=ALL_TRUSTED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF shortcircuit=no autolearn=disabled version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on mail.protonmail.ch Subject: [FFmpeg-devel] [PATCH v2 1/4] avcodec: add decoder for High Voltage Software's ALP ADPCM X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: Zane van Iperen Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Signed-off-by: Zane van Iperen --- libavcodec/Makefile | 1 + libavcodec/adpcm.c | 36 ++++++++++++++++++++++++++++++++++++ libavcodec/allcodecs.c | 1 + libavcodec/avcodec.h | 1 + libavcodec/codec_desc.c | 7 +++++++ libavcodec/version.h | 4 ++-- 6 files changed, 48 insertions(+), 2 deletions(-) diff --git a/libavcodec/Makefile b/libavcodec/Makefile index f1c032b456..0fd374ffed 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -834,6 +834,7 @@ OBJS-$(CONFIG_ADPCM_G726_ENCODER) += g726.o OBJS-$(CONFIG_ADPCM_G726LE_DECODER) += g726.o OBJS-$(CONFIG_ADPCM_G726LE_ENCODER) += g726.o OBJS-$(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_DAT4_DECODER) += adpcm.o adpcm_data.o diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index 5f152ee6ef..c69cac3379 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -15,6 +15,7 @@ * Argonaut Games ADPCM decoder by Zane van Iperen (zane@zanevaniperen.com) * Simon & Schuster Interactive ADPCM decoder by Zane van Iperen (zane@zanevaniperen.com) * Ubisoft ADPCM decoder by Zane van Iperen (zane@zanevaniperen.com) + * High Voltage Software ALP decoder by Zane van Iperen (zane@zanevaniperen.com) * * This file is part of FFmpeg. * @@ -280,6 +281,29 @@ static inline int16_t adpcm_ima_expand_nibble(ADPCMChannelStatus *c, int8_t nibb return (int16_t)c->predictor; } +static inline int16_t adpcm_ima_alp_expand_nibble(ADPCMChannelStatus *c, int8_t nibble, int shift) +{ + int step_index; + int predictor; + int sign, delta, diff, step; + + step = ff_adpcm_step_table[c->step_index]; + step_index = c->step_index + ff_adpcm_index_table[(unsigned)nibble]; + step_index = av_clip(step_index, 0, 88); + + sign = nibble & 8; + delta = nibble & 7; + diff = (delta * step) >> shift; + predictor = c->predictor; + if (sign) predictor -= diff; + else predictor += diff; + + 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; @@ -675,6 +699,7 @@ static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb, case AV_CODEC_ID_ADPCM_AICA: case AV_CODEC_ID_ADPCM_IMA_SSI: case AV_CODEC_ID_ADPCM_IMA_APM: + case AV_CODEC_ID_ADPCM_IMA_ALP: nb_samples = buf_size * 2 / ch; break; } @@ -1247,6 +1272,16 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data, samples += avctx->channels; } break; + case AV_CODEC_ID_ADPCM_IMA_ALP: + for (n = nb_samples / 2; n > 0; n--) { + for (channel = 0; channel < avctx->channels; channel++) { + int v = bytestream2_get_byteu(&gb); + *samples++ = adpcm_ima_alp_expand_nibble(&c->status[channel], v >> 4 , 2); + samples[st] = adpcm_ima_alp_expand_nibble(&c->status[channel], v & 0x0F, 2); + } + samples += avctx->channels; + } + break; case AV_CODEC_ID_ADPCM_IMA_OKI: while (bytestream2_get_bytes_left(&gb) > 0) { int v = bytestream2_get_byteu(&gb); @@ -1997,6 +2032,7 @@ ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_QT, sample_fmts_s16p, adpcm_ima_qt, 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_ALP, sample_fmts_s16, adpcm_ima_alp, "ADPCM IMA High Voltage Software ALP"); 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"); ADPCM_DECODER(AV_CODEC_ID_ADPCM_MS, sample_fmts_both, adpcm_ms, "ADPCM Microsoft"); diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 674995df72..f4cf180716 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -599,6 +599,7 @@ extern AVCodec ff_adpcm_g726_decoder; extern AVCodec ff_adpcm_g726le_encoder; extern AVCodec ff_adpcm_g726le_decoder; 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_dat4_decoder; diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 5a0fc3405c..833642d692 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -552,6 +552,7 @@ enum AVCodecID { AV_CODEC_ID_ADPCM_IMA_SSI, AV_CODEC_ID_ADPCM_ZORK, AV_CODEC_ID_ADPCM_IMA_APM, + AV_CODEC_ID_ADPCM_IMA_ALP, /* AMR */ AV_CODEC_ID_AMR_NB = 0x12000, diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c index 52178e7afe..0f5ddd9a9f 100644 --- a/libavcodec/codec_desc.c +++ b/libavcodec/codec_desc.c @@ -2325,6 +2325,13 @@ static const AVCodecDescriptor codec_descriptors[] = { .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA Ubisoft APM"), .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY, }, + { + .id = AV_CODEC_ID_ADPCM_IMA_ALP, + .type = AVMEDIA_TYPE_AUDIO, + .name = "adpcm_ima_alp", + .long_name = NULL_IF_CONFIG_SMALL("ADPCM IMA High Voltage Software ALP"), + .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY, + }, /* AMR */ { diff --git a/libavcodec/version.h b/libavcodec/version.h index 36536c3725..c051ac0754 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 73 -#define LIBAVCODEC_VERSION_MICRO 102 +#define LIBAVCODEC_VERSION_MINOR 74 +#define LIBAVCODEC_VERSION_MICRO 100 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ LIBAVCODEC_VERSION_MINOR, \