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Diffstat (limited to 'contrib/ffmpeg/libavcodec/lclenc.c')
-rw-r--r--contrib/ffmpeg/libavcodec/lclenc.c231
1 files changed, 0 insertions, 231 deletions
diff --git a/contrib/ffmpeg/libavcodec/lclenc.c b/contrib/ffmpeg/libavcodec/lclenc.c
deleted file mode 100644
index e8349052a..000000000
--- a/contrib/ffmpeg/libavcodec/lclenc.c
+++ /dev/null
@@ -1,231 +0,0 @@
-/*
- * LCL (LossLess Codec Library) Codec
- * Copyright (c) 2002-2004 Roberto Togni
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file lcl.c
- * LCL (LossLess Codec Library) Video Codec
- * Decoder for MSZH and ZLIB codecs
- * Experimental encoder for ZLIB RGB24
- *
- * Fourcc: MSZH, ZLIB
- *
- * Original Win32 dll:
- * Ver2.23 By Kenji Oshima 2000.09.20
- * avimszh.dll, avizlib.dll
- *
- * A description of the decoding algorithm can be found here:
- * http://www.pcisys.net/~melanson/codecs
- *
- * Supports: BGR24 (RGB 24bpp)
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "avcodec.h"
-#include "bitstream.h"
-#include "lcl.h"
-
-#ifdef CONFIG_ZLIB
-#include <zlib.h>
-#endif
-
-/*
- * Decoder context
- */
-typedef struct LclEncContext {
-
- AVCodecContext *avctx;
- AVFrame pic;
- PutBitContext pb;
-
- // Image type
- int imgtype;
- // Compression type
- int compression;
- // Flags
- int flags;
- // Decompressed data size
- unsigned int decomp_size;
- // Maximum compressed data size
- unsigned int max_comp_size;
- // Compression buffer
- unsigned char* comp_buf;
-#ifdef CONFIG_ZLIB
- z_stream zstream;
-#endif
-} LclEncContext;
-
-/*
- *
- * Encode a frame
- *
- */
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
- LclEncContext *c = avctx->priv_data;
- AVFrame *pict = data;
- AVFrame * const p = &c->pic;
- int i;
- int zret; // Zlib return code
-
-#ifndef CONFIG_ZLIB
- av_log(avctx, AV_LOG_ERROR, "Zlib support not compiled in.\n");
- return -1;
-#else
-
- init_put_bits(&c->pb, buf, buf_size);
-
- *p = *pict;
- p->pict_type= FF_I_TYPE;
- p->key_frame= 1;
-
- if(avctx->pix_fmt != PIX_FMT_BGR24){
- av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
- return -1;
- }
-
- zret = deflateReset(&(c->zstream));
- if (zret != Z_OK) {
- av_log(avctx, AV_LOG_ERROR, "Deflate reset error: %d\n", zret);
- return -1;
- }
- c->zstream.next_out = c->comp_buf;
- c->zstream.avail_out = c->max_comp_size;
-
- for(i = avctx->height - 1; i >= 0; i--) {
- c->zstream.next_in = p->data[0]+p->linesize[0]*i;
- c->zstream.avail_in = avctx->width*3;
- zret = deflate(&(c->zstream), Z_NO_FLUSH);
- if (zret != Z_OK) {
- av_log(avctx, AV_LOG_ERROR, "Deflate error: %d\n", zret);
- return -1;
- }
- }
- zret = deflate(&(c->zstream), Z_FINISH);
- if (zret != Z_STREAM_END) {
- av_log(avctx, AV_LOG_ERROR, "Deflate error: %d\n", zret);
- return -1;
- }
-
- for (i = 0; i < c->zstream.total_out; i++)
- put_bits(&c->pb, 8, c->comp_buf[i]);
- flush_put_bits(&c->pb);
-
- return c->zstream.total_out;
-#endif
-}
-
-/*
- *
- * Init lcl encoder
- *
- */
-static int encode_init(AVCodecContext *avctx)
-{
- LclEncContext *c = avctx->priv_data;
- int zret; // Zlib return code
-
-#ifndef CONFIG_ZLIB
- av_log(avctx, AV_LOG_ERROR, "Zlib support not compiled.\n");
- return 1;
-#else
-
- c->avctx= avctx;
-
- assert(avctx->width && avctx->height);
-
- avctx->extradata= av_mallocz(8);
- avctx->coded_frame= &c->pic;
-
- // Will be user settable someday
- c->compression = 6;
- c->flags = 0;
-
- switch(avctx->pix_fmt){
- case PIX_FMT_BGR24:
- c->imgtype = IMGTYPE_RGB24;
- c->decomp_size = avctx->width * avctx->height * 3;
- avctx->bits_per_sample= 24;
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "Format %d not supported\n", avctx->pix_fmt);
- return -1;
- }
-
- ((uint8_t*)avctx->extradata)[0]= 4;
- ((uint8_t*)avctx->extradata)[1]= 0;
- ((uint8_t*)avctx->extradata)[2]= 0;
- ((uint8_t*)avctx->extradata)[3]= 0;
- ((uint8_t*)avctx->extradata)[4]= c->imgtype;
- ((uint8_t*)avctx->extradata)[5]= c->compression;
- ((uint8_t*)avctx->extradata)[6]= c->flags;
- ((uint8_t*)avctx->extradata)[7]= CODEC_ZLIB;
- c->avctx->extradata_size= 8;
-
- c->zstream.zalloc = Z_NULL;
- c->zstream.zfree = Z_NULL;
- c->zstream.opaque = Z_NULL;
- zret = deflateInit(&(c->zstream), c->compression);
- if (zret != Z_OK) {
- av_log(avctx, AV_LOG_ERROR, "Deflate init error: %d\n", zret);
- return 1;
- }
-
- /* Conservative upper bound taken from zlib v1.2.1 source */
- c->max_comp_size = c->decomp_size + ((c->decomp_size + 7) >> 3) +
- ((c->decomp_size + 63) >> 6) + 11;
- if ((c->comp_buf = av_malloc(c->max_comp_size)) == NULL) {
- av_log(avctx, AV_LOG_ERROR, "Can't allocate compression buffer.\n");
- return 1;
- }
-
- return 0;
-#endif
-}
-
-/*
- *
- * Uninit lcl encoder
- *
- */
-static int encode_end(AVCodecContext *avctx)
-{
- LclEncContext *c = avctx->priv_data;
-
- av_freep(&avctx->extradata);
- av_freep(&c->comp_buf);
-#ifdef CONFIG_ZLIB
- deflateEnd(&(c->zstream));
-#endif
-
- return 0;
-}
-
-AVCodec zlib_encoder = {
- "zlib",
- CODEC_TYPE_VIDEO,
- CODEC_ID_ZLIB,
- sizeof(LclEncContext),
- encode_init,
- encode_frame,
- encode_end,
-};
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