From 9a3202a98b2e095b54dd784c3e01a09a676fc3fa Mon Sep 17 00:00:00 2001 From: Vittorio Giovara Date: Fri, 25 Sep 2015 00:36:50 +0200 Subject: [PATCH] Screenpresso SPV1 decoder Signed-off-by: Vittorio Giovara --- Changelog | 1 + configure | 1 + doc/general.texi | 1 + libavcodec/Makefile | 1 + libavcodec/allcodecs.c | 1 + libavcodec/avcodec.h | 1 + libavcodec/codec_desc.c | 7 ++ libavcodec/screenpresso.c | 186 ++++++++++++++++++++++++++++++++++++ libavcodec/version.h | 2 +- libavformat/riff.c | 1 + tests/fate/video.mak | 3 + tests/ref/fate/screenpresso | 5 + 12 files changed, 209 insertions(+), 1 deletion(-) create mode 100644 libavcodec/screenpresso.c create mode 100644 tests/ref/fate/screenpresso diff --git a/Changelog b/Changelog index 461c5b1204..696c8819ba 100644 --- a/Changelog +++ b/Changelog @@ -43,6 +43,7 @@ version : - Intel QSV-accelerated MPEG-2 video and HEVC decoding - Support DNx100 (1440x1080@8) - DXV decoding +- Screenpresso SPV1 decoding version 11: diff --git a/configure b/configure index 58a8cb6c4a..b4eccd6051 100755 --- a/configure +++ b/configure @@ -1972,6 +1972,7 @@ rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er" rv20_encoder_select="h263_encoder" rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp" rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp" +screenpresso_decoder_deps="zlib" shorten_decoder_select="golomb" sipr_decoder_select="lsp" sp5x_decoder_select="mjpeg_decoder" diff --git a/doc/general.texi b/doc/general.texi index 7cd76933a0..6e432691cc 100644 --- a/doc/general.texi +++ b/doc/general.texi @@ -409,6 +409,7 @@ library: @item RTP @tab X @tab X @item RTSP @tab X @tab X @item SAP @tab X @tab X +@item Screenpresso @tab @tab X @item SDP @tab @tab X @item Sega FILM/CPK @tab @tab X @tab Used in many Sega Saturn console games. diff --git a/libavcodec/Makefile b/libavcodec/Makefile index f163a79a71..632a8a64d1 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -385,6 +385,7 @@ OBJS-$(CONFIG_RV30_DECODER) += rv30.o rv34.o rv30dsp.o OBJS-$(CONFIG_RV40_DECODER) += rv40.o rv34.o rv40dsp.o OBJS-$(CONFIG_S302M_DECODER) += s302m.o OBJS-$(CONFIG_SANM_DECODER) += sanm.o +OBJS-$(CONFIG_SCREENPRESSO_DECODER) += screenpresso.o OBJS-$(CONFIG_SGI_DECODER) += sgidec.o OBJS-$(CONFIG_SGI_ENCODER) += sgienc.o rle.o OBJS-$(CONFIG_SGIRLE_DECODER) += sgirledec.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 49f5a70f4c..2d8474a7c4 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -249,6 +249,7 @@ void avcodec_register_all(void) REGISTER_DECODER(RV40, rv40); REGISTER_DECODER(S302M, s302m); REGISTER_DECODER(SANM, sanm); + REGISTER_DECODER(SCREENPRESSO, screenpresso); REGISTER_ENCDEC (SGI, sgi); REGISTER_DECODER(SGIRLE, sgirle); REGISTER_DECODER(SMACKER, smacker); diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 9c6fde06a3..11ae1fcd91 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -299,6 +299,7 @@ enum AVCodecID { AV_CODEC_ID_HAP, AV_CODEC_ID_DDS, AV_CODEC_ID_DXV, + AV_CODEC_ID_SCREENPRESSO, /* various PCM "codecs" */ AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c index 31d3555c25..d2c7a9179c 100644 --- a/libavcodec/codec_desc.c +++ b/libavcodec/codec_desc.c @@ -1162,6 +1162,13 @@ static const AVCodecDescriptor codec_descriptors[] = { .long_name = NULL_IF_CONFIG_SMALL("Resolume DXV"), .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY, }, + { + .id = AV_CODEC_ID_SCREENPRESSO, + .type = AVMEDIA_TYPE_VIDEO, + .name = "screenpresso", + .long_name = NULL_IF_CONFIG_SMALL("Screenpresso"), + .props = AV_CODEC_PROP_LOSSLESS, + }, /* image codecs */ { diff --git a/libavcodec/screenpresso.c b/libavcodec/screenpresso.c new file mode 100644 index 0000000000..d25d0ebb9d --- /dev/null +++ b/libavcodec/screenpresso.c @@ -0,0 +1,186 @@ +/* + * Screenpresso decoder + * Copyright (C) 2015 Vittorio Giovara + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * Screenpresso decoder + * + * Fourcc: SPV1 + * + * Screenpresso simply horizontally flips and then deflates frames, + * alternating full pictures and deltas. Deltas are related to the currently + * rebuilt frame (not the reference), and since there is no coordinate system + * they contain exactly as many pixel as the keyframe. + * + * Supports: BGR24 + */ + +#include +#include +#include + +#include "libavutil/imgutils.h" +#include "libavutil/internal.h" + +#include "avcodec.h" +#include "internal.h" + +typedef struct ScreenpressoContext { + AVFrame *current; + + /* zlib interation */ + uint8_t *inflated_buf; + uLongf inflated_size; +} ScreenpressoContext; + +static av_cold int screenpresso_close(AVCodecContext *avctx) +{ + ScreenpressoContext *ctx = avctx->priv_data; + + av_frame_free(&ctx->current); + av_freep(&ctx->inflated_buf); + + return 0; +} + +static av_cold int screenpresso_init(AVCodecContext *avctx) +{ + ScreenpressoContext *ctx = avctx->priv_data; + + /* These needs to be set to estimate uncompressed buffer */ + int ret = av_image_check_size(avctx->width, avctx->height, 0, avctx); + if (ret < 0) { + av_log(avctx, AV_LOG_ERROR, "Invalid image size %dx%d.\n", + avctx->width, avctx->height); + return ret; + } + + /* Allocate current frame */ + ctx->current = av_frame_alloc(); + if (!ctx->current) + return AVERROR(ENOMEM); + + avctx->pix_fmt = AV_PIX_FMT_BGR24; + + return 0; +} + +static void sum_delta_flipped(uint8_t *dst, int dst_linesize, + const uint8_t *src, int src_linesize, + int bytewidth, int height) +{ + int i; + for (; height > 0; height--) { + for (i = 0; i < bytewidth; i++) + dst[i] += src[(height - 1) * src_linesize + i]; + dst += dst_linesize; + } +} + +static int screenpresso_decode_frame(AVCodecContext *avctx, void *data, + int *got_frame, AVPacket *avpkt) +{ + ScreenpressoContext *ctx = avctx->priv_data; + AVFrame *frame = data; + int keyframe; + int ret; + + /* Size check */ + if (avpkt->size < 3) { + av_log(avctx, AV_LOG_ERROR, "Packet too small (%d)\n", avpkt->size); + return AVERROR_INVALIDDATA; + } + + /* Basic sanity check, but not really harmful */ + if ((avpkt->data[0] != 0x73 && avpkt->data[0] != 0x72) || + avpkt->data[1] != 8) { // bpp probably + av_log(avctx, AV_LOG_WARNING, "Unknown header 0x%02X%02X\n", + avpkt->data[0], avpkt->data[1]); + } + keyframe = (avpkt->data[0] == 0x73); + + /* Resize deflate buffer and frame on resolution change */ + if (ctx->inflated_size != avctx->width * avctx->height * 3) { + av_frame_unref(ctx->current); + ret = ff_get_buffer(avctx, ctx->current, AV_GET_BUFFER_FLAG_REF); + if (ret < 0) + return ret; + + /* If malloc fails, reset len to avoid preserving an invalid value */ + ctx->inflated_size = avctx->width * avctx->height * 3; + ret = av_reallocp(&ctx->inflated_buf, ctx->inflated_size); + if (ret < 0) { + ctx->inflated_size = 0; + return ret; + } + } + + /* Inflate the frame after the 2 byte header */ + ret = uncompress(ctx->inflated_buf, &ctx->inflated_size, + avpkt->data + 2, avpkt->size - 2); + if (ret) { + av_log(avctx, AV_LOG_ERROR, "Deflate error %d.\n", ret); + return AVERROR_UNKNOWN; + } + + /* When a keyframe is found, copy it (flipped) */ + if (keyframe) + av_image_copy_plane(ctx->current->data[0] + + ctx->current->linesize[0] * (avctx->height - 1), + -1 * ctx->current->linesize[0], + ctx->inflated_buf, avctx->width * 3, + avctx->width * 3, avctx->height); + /* Otherwise sum the delta on top of the current frame */ + else + sum_delta_flipped(ctx->current->data[0], ctx->current->linesize[0], + ctx->inflated_buf, avctx->width * 3, + avctx->width * 3, avctx->height); + + /* Frame is ready to be output */ + ret = av_frame_ref(frame, ctx->current); + if (ret < 0) + return ret; + + /* Usual properties */ + if (keyframe) { + frame->pict_type = AV_PICTURE_TYPE_I; + frame->key_frame = 1; + } else { + frame->pict_type = AV_PICTURE_TYPE_P; + } + *got_frame = 1; + + return 0; +} + +AVCodec ff_screenpresso_decoder = { + .name = "screenpresso", + .long_name = NULL_IF_CONFIG_SMALL("Screenpresso"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_SCREENPRESSO, + .init = screenpresso_init, + .decode = screenpresso_decode_frame, + .close = screenpresso_close, + .priv_data_size = sizeof(ScreenpressoContext), + .capabilities = AV_CODEC_CAP_DR1, + .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | + FF_CODEC_CAP_INIT_CLEANUP, +}; diff --git a/libavcodec/version.h b/libavcodec/version.h index 80b0ba559a..4b487ca948 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -29,7 +29,7 @@ #include "libavutil/version.h" #define LIBAVCODEC_VERSION_MAJOR 57 -#define LIBAVCODEC_VERSION_MINOR 2 +#define LIBAVCODEC_VERSION_MINOR 3 #define LIBAVCODEC_VERSION_MICRO 0 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ diff --git a/libavformat/riff.c b/libavformat/riff.c index 1746297f36..f0e99df8df 100644 --- a/libavformat/riff.c +++ b/libavformat/riff.c @@ -360,6 +360,7 @@ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_TDSC, MKTAG('T', 'D', 'S', 'C') }, { AV_CODEC_ID_HQ_HQA, MKTAG('C', 'U', 'V', 'C') }, { AV_CODEC_ID_RV40, MKTAG('R', 'V', '4', '0') }, + { AV_CODEC_ID_SCREENPRESSO, MKTAG('S', 'P', 'V', '1') }, { AV_CODEC_ID_NONE, 0 } }; diff --git a/tests/fate/video.mak b/tests/fate/video.mak index ef1d41da2f..47865e4d25 100644 --- a/tests/fate/video.mak +++ b/tests/fate/video.mak @@ -275,6 +275,9 @@ fate-roqvideo: CMD = framecrc -i $(TARGET_SAMPLES)/idroq/idlogo.roq -an FATE_SAMPLES_AVCONV-$(call DEMDEC, SMUSH, SANM) += fate-sanm fate-sanm: CMD = framecrc -i $(TARGET_SAMPLES)/smush/ronin_part.znm -an -pix_fmt rgb24 +FATE_SAMPLES_AVCONV-$(call DEMDEC, AVI, SCREENPRESSO) += fate-screenpresso +fate-screenpresso: CMD = framecrc -i $(TARGET_SAMPLES)/spv1/bunny.avi + FATE_SAMPLES_AVCONV-$(call DEMDEC, VMD, VMDVIDEO) += fate-sierra-vmd-video fate-sierra-vmd-video: CMD = framecrc -i $(TARGET_SAMPLES)/vmd/12.vmd -pix_fmt rgb24 -an diff --git a/tests/ref/fate/screenpresso b/tests/ref/fate/screenpresso new file mode 100644 index 0000000000..bbdffb4433 --- /dev/null +++ b/tests/ref/fate/screenpresso @@ -0,0 +1,5 @@ +#tb 0: 1/15 +0, 0, 0, 1, 691200, 0xfdbdfad6 +0, 1, 1, 1, 691200, 0xc5feb961 +0, 4, 4, 1, 691200, 0x4c8c7e23 +0, 8, 8, 1, 691200, 0xd95c89f8