From ab711b3c8d59671e2f506a9febd030f74fda006b Mon Sep 17 00:00:00 2001 From: Mike Melanson Date: Wed, 27 Oct 2004 04:30:48 +0000 Subject: [PATCH] Miro VideoXL (VIXL) decoder, courtesy of Konstantin Shishkov Originally committed as revision 3641 to svn://svn.ffmpeg.org/ffmpeg/trunk --- Changelog | 1 + doc/ffmpeg-doc.texi | 1 + libavcodec/Makefile | 2 +- libavcodec/allcodecs.c | 1 + libavcodec/avcodec.h | 4 +- libavcodec/xl.c | 144 +++++++++++++++++++++++++++++++++++++++++ libavformat/avienc.c | 1 + 7 files changed, 152 insertions(+), 2 deletions(-) create mode 100644 libavcodec/xl.c diff --git a/Changelog b/Changelog index 83cd930b21..fa6f347bd1 100644 --- a/Changelog +++ b/Changelog @@ -5,6 +5,7 @@ version - Apple QuickDraw (qdrw) video decoder - Creative ADPCM audio decoder - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer +- Miro VideoXL (VIXL) video decoder version 0.4.9-pre1: diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi index 397333a4b3..db314530d4 100644 --- a/doc/ffmpeg-doc.texi +++ b/doc/ffmpeg-doc.texi @@ -767,6 +767,7 @@ following image formats are supported: @item ZLIB @tab X @tab X @tab Part of LCL, encoder experimental @item TechSmith Camtasia @tab @tab X @tab fourcc: TSCC @item IBM Ultimotion @tab @tab X @tab fourcc: ULTI +@item Miro VideoXL @tab @tab X @tab fourcc: VIXL @end multitable @code{X} means that the encoding (resp. decoding) is supported. diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 83d7079cd7..e41956ba6f 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -21,7 +21,7 @@ OBJS= common.o utils.o mem.o allcodecs.o \ msvideo1.o vqavideo.o idcinvideo.o adx.o rational.o faandct.o 8bps.o \ smc.o parser.o flicvideo.o truemotion1.o vmdav.o lcl.o qtrle.o g726.o \ flac.o vp3dsp.o integer.o snow.o tscc.o sonic.o ulti.o h264idct.o \ - qdrw.o + qdrw.o xl.o ifeq ($(AMR_NB),yes) ifeq ($(AMR_NB_FIXED),yes) diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 2a24dd7333..d8409bd78e 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -109,6 +109,7 @@ void avcodec_register_all(void) register_avcodec(&tscc_decoder); register_avcodec(&ulti_decoder); register_avcodec(&qdraw_decoder); + register_avcodec(&xl_decoder); #ifdef CONFIG_FAAD register_avcodec(&aac_decoder); register_avcodec(&mpeg4aac_decoder); diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index df2c47679c..2856a75f9c 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -17,7 +17,7 @@ extern "C" { #define FFMPEG_VERSION_INT 0x000409 #define FFMPEG_VERSION "0.4.9-pre1" -#define LIBAVCODEC_BUILD 4727 +#define LIBAVCODEC_BUILD 4728 #define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT #define LIBAVCODEC_VERSION FFMPEG_VERSION @@ -104,6 +104,7 @@ enum CodecID { CODEC_ID_TSCC, CODEC_ID_ULTI, CODEC_ID_QDRAW, + CODEC_ID_VIXL, /* various pcm "codecs" */ CODEC_ID_PCM_S16LE, @@ -1890,6 +1891,7 @@ extern AVCodec flac_decoder; extern AVCodec tscc_decoder; extern AVCodec ulti_decoder; extern AVCodec qdraw_decoder; +extern AVCodec xl_decoder; /* pcm codecs */ #define PCM_CODEC(id, name) \ diff --git a/libavcodec/xl.c b/libavcodec/xl.c new file mode 100644 index 0000000000..0f496017d9 --- /dev/null +++ b/libavcodec/xl.c @@ -0,0 +1,144 @@ +/* + * Miro VideoXL codec + * Copyright (c) 2004 Konstantin Shishkov + * + * This library 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 of the License, or (at your option) any later version. + * + * This library 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 this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +/** + * @file xl.c + * Miro VideoXL codec. + */ + +#include "avcodec.h" +#include "mpegvideo.h" + +typedef struct VideoXLContext{ + AVCodecContext *avctx; + AVFrame pic; +} VideoXLContext; + +const int xl_table[32] = { + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 12, 15, 20, 25, 34, 46, + 64, 82, 94, 103, 108, 113, 116, 119, + 120, 121, 122, 123, 124, 125, 126, 127}; + +static int decode_frame(AVCodecContext *avctx, + void *data, int *data_size, + uint8_t *buf, int buf_size) +{ + VideoXLContext * const a = avctx->priv_data; + AVFrame * const p= (AVFrame*)&a->pic; + uint8_t *Y, *U, *V; + int i, j; + int stride; + uint32_t val; + int y0, y1, y2, y3, c0, c1; + + + /* special case for last picture */ + if (buf_size == 0) { + return 0; + } + + if(p->data[0]) + avctx->release_buffer(avctx, p); + + p->reference = 0; + if(avctx->get_buffer(avctx, p) < 0){ + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return -1; + } + p->pict_type= I_TYPE; + p->key_frame= 1; + + Y = a->pic.data[0]; + U = a->pic.data[1]; + V = a->pic.data[2]; + + stride = avctx->width - 4; + for (i = 0; i < avctx->height; i++) { + /* lines are stored in reversed order */ + buf += stride; + + for (j = 0; j < avctx->width; j += 4) { + /* value is stored in LE dword with word swapped */ + val = LE_32(buf); + buf -= 4; + val = ((val >> 16) & 0xFFFF) | ((val & 0xFFFF) << 16); + + if(!j) + y0 = (val & 0x1F) << 2; + else + y0 = y3 + xl_table[val & 0x1F]; + val >>= 5; + y1 = y0 + xl_table[val & 0x1F]; + val >>= 5; + y2 = y1 + xl_table[val & 0x1F]; + val >>= 6; /* align to word */ + y3 = y2 + xl_table[val & 0x1F]; + val >>= 5; + if(!j) + c0 = (val & 0x1F) << 2; + else + c0 += xl_table[val & 0x1F]; + val >>= 5; + if(!j) + c1 = (val & 0x1F) << 2; + else + c1 += xl_table[val & 0x1F]; + + Y[j + 0] = y0 << 1; + Y[j + 1] = y1 << 1; + Y[j + 2] = y2 << 1; + Y[j + 3] = y3 << 1; + + U[j >> 2] = c0 << 1; + V[j >> 2] = c1 << 1; + } + + buf += avctx->width + 4; + Y += a->pic.linesize[0]; + U += a->pic.linesize[1]; + V += a->pic.linesize[2]; + } + + *data_size = sizeof(AVFrame); + *(AVFrame*)data = a->pic; + + return buf_size; +} + +static int decode_init(AVCodecContext *avctx){ +// VideoXLContext * const a = avctx->priv_data; + + avctx->pix_fmt= PIX_FMT_YUV411P; + + return 0; +} + +AVCodec xl_decoder = { + "xl", + CODEC_TYPE_VIDEO, + CODEC_ID_VIXL, + sizeof(VideoXLContext), + decode_init, + NULL, + NULL, + decode_frame, + CODEC_CAP_DR1, +}; diff --git a/libavformat/avienc.c b/libavformat/avienc.c index 957e665f5f..5f53df6368 100644 --- a/libavformat/avienc.c +++ b/libavformat/avienc.c @@ -169,6 +169,7 @@ const CodecTag codec_bmp_tags[] = { { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') }, { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') }, + { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') }, { CODEC_ID_RAWVIDEO, 0 }, { 0, 0 }, };