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-rw-r--r--libavcodec/Makefile4
-rw-r--r--libavcodec/lzo.c273
-rw-r--r--libavcodec/lzo.h35
3 files changed, 2 insertions, 310 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 1bdda6a02c..0b8c724baf 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -60,7 +60,7 @@ OBJS-$(CONFIG_CINEPAK_DECODER) += cinepak.o
OBJS-$(CONFIG_CLJR_DECODER) += cljr.o
OBJS-$(CONFIG_CLJR_ENCODER) += cljr.o
OBJS-$(CONFIG_COOK_DECODER) += cook.o
-OBJS-$(CONFIG_CSCD_DECODER) += cscd.o lzo.o
+OBJS-$(CONFIG_CSCD_DECODER) += cscd.o
OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o
OBJS-$(CONFIG_DSICINVIDEO_DECODER) += dsicinav.o
OBJS-$(CONFIG_DSICINAUDIO_DECODER) += dsicinav.o
@@ -106,7 +106,7 @@ OBJS-$(CONFIG_MPC7_DECODER) += mpc.o
OBJS-$(CONFIG_MSRLE_DECODER) += msrle.o
OBJS-$(CONFIG_MSVIDEO1_DECODER) += msvideo1.o
OBJS-$(CONFIG_MSZH_DECODER) += lcl.o
-OBJS-$(CONFIG_NUV_DECODER) += nuv.o rtjpeg.o lzo.o
+OBJS-$(CONFIG_NUV_DECODER) += nuv.o rtjpeg.o
OBJS-$(CONFIG_PNG_DECODER) += png.o
OBJS-$(CONFIG_PNG_ENCODER) += png.o
OBJS-$(CONFIG_QDM2_DECODER) += qdm2.o
diff --git a/libavcodec/lzo.c b/libavcodec/lzo.c
deleted file mode 100644
index d3849a743d..0000000000
--- a/libavcodec/lzo.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * LZO 1x decompression
- * Copyright (c) 2006 Reimar Doeffinger
- *
- * 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
- */
-#include "common.h"
-//! avoid e.g. MPlayers fast_memcpy, it slows things down here
-#undef memcpy
-#include <string.h>
-#include "lzo.h"
-
-//! define if we may write up to 12 bytes beyond the output buffer
-#define OUTBUF_PADDED 1
-//! define if we may read up to 8 bytes beyond the input buffer
-#define INBUF_PADDED 1
-typedef struct LZOContext {
- uint8_t *in, *in_end;
- uint8_t *out_start, *out, *out_end;
- int error;
-} LZOContext;
-
-/**
- * \brief read one byte from input buffer, avoiding overrun
- * \return byte read
- */
-static inline int get_byte(LZOContext *c) {
- if (c->in < c->in_end)
- return *c->in++;
- c->error |= LZO_INPUT_DEPLETED;
- return 1;
-}
-
-#ifdef INBUF_PADDED
-#define GETB(c) (*(c).in++)
-#else
-#define GETB(c) get_byte(&(c))
-#endif
-
-/**
- * \brief decode a length value in the coding used by lzo
- * \param x previous byte value
- * \param mask bits used from x
- * \return decoded length value
- */
-static inline int get_len(LZOContext *c, int x, int mask) {
- int cnt = x & mask;
- if (!cnt) {
- while (!(x = get_byte(c))) cnt += 255;
- cnt += mask + x;
- }
- return cnt;
-}
-
-//#define UNALIGNED_LOADSTORE
-#define BUILTIN_MEMCPY
-#ifdef UNALIGNED_LOADSTORE
-#define COPY2(d, s) *(uint16_t *)(d) = *(uint16_t *)(s);
-#define COPY4(d, s) *(uint32_t *)(d) = *(uint32_t *)(s);
-#elif defined(BUILTIN_MEMCPY)
-#define COPY2(d, s) memcpy(d, s, 2);
-#define COPY4(d, s) memcpy(d, s, 4);
-#else
-#define COPY2(d, s) (d)[0] = (s)[0]; (d)[1] = (s)[1];
-#define COPY4(d, s) (d)[0] = (s)[0]; (d)[1] = (s)[1]; (d)[2] = (s)[2]; (d)[3] = (s)[3];
-#endif
-
-/**
- * \brief copy bytes from input to output buffer with checking
- * \param cnt number of bytes to copy, must be >= 0
- */
-static inline void copy(LZOContext *c, int cnt) {
- register uint8_t *src = c->in;
- register uint8_t *dst = c->out;
- if (cnt > c->in_end - src) {
- cnt = FFMAX(c->in_end - src, 0);
- c->error |= LZO_INPUT_DEPLETED;
- }
- if (cnt > c->out_end - dst) {
- cnt = FFMAX(c->out_end - dst, 0);
- c->error |= LZO_OUTPUT_FULL;
- }
-#if defined(INBUF_PADDED) && defined(OUTBUF_PADDED)
- COPY4(dst, src);
- src += 4;
- dst += 4;
- cnt -= 4;
- if (cnt > 0)
-#endif
- memcpy(dst, src, cnt);
- c->in = src + cnt;
- c->out = dst + cnt;
-}
-
-/**
- * \brief copy previously decoded bytes to current position
- * \param back how many bytes back we start
- * \param cnt number of bytes to copy, must be >= 0
- *
- * cnt > back is valid, this will copy the bytes we just copied,
- * thus creating a repeating pattern with a period length of back.
- */
-static inline void copy_backptr(LZOContext *c, int back, int cnt) {
- register uint8_t *src = &c->out[-back];
- register uint8_t *dst = c->out;
- if (src < c->out_start || src > dst) {
- c->error |= LZO_INVALID_BACKPTR;
- return;
- }
- if (cnt > c->out_end - dst) {
- cnt = FFMAX(c->out_end - dst, 0);
- c->error |= LZO_OUTPUT_FULL;
- }
- if (back == 1) {
- memset(dst, *src, cnt);
- dst += cnt;
- } else {
-#ifdef OUTBUF_PADDED
- COPY2(dst, src);
- COPY2(dst + 2, src + 2);
- src += 4;
- dst += 4;
- cnt -= 4;
- if (cnt > 0) {
- COPY2(dst, src);
- COPY2(dst + 2, src + 2);
- COPY2(dst + 4, src + 4);
- COPY2(dst + 6, src + 6);
- src += 8;
- dst += 8;
- cnt -= 8;
- }
-#endif
- if (cnt > 0) {
- int blocklen = back;
- while (cnt > blocklen) {
- memcpy(dst, src, blocklen);
- dst += blocklen;
- cnt -= blocklen;
- blocklen <<= 1;
- }
- memcpy(dst, src, cnt);
- }
- dst += cnt;
- }
- c->out = dst;
-}
-
-/**
- * \brief decode LZO 1x compressed data
- * \param out output buffer
- * \param outlen size of output buffer, number of bytes left are returned here
- * \param in input buffer
- * \param inlen size of input buffer, number of bytes left are returned here
- * \return 0 on success, otherwise error flags, see lzo.h
- *
- * make sure all buffers are appropriately padded, in must provide
- * LZO_INPUT_PADDING, out must provide LZO_OUTPUT_PADDING additional bytes
- */
-int lzo1x_decode(void *out, int *outlen, void *in, int *inlen) {
- int state= 0;
- int x;
- LZOContext c;
- c.in = in;
- c.in_end = (uint8_t *)in + *inlen;
- c.out = c.out_start = out;
- c.out_end = (uint8_t *)out + * outlen;
- c.error = 0;
- x = GETB(c);
- if (x > 17) {
- copy(&c, x - 17);
- x = GETB(c);
- if (x < 16) c.error |= LZO_ERROR;
- }
- if (c.in > c.in_end)
- c.error |= LZO_INPUT_DEPLETED;
- while (!c.error) {
- int cnt, back;
- if (x > 15) {
- if (x > 63) {
- cnt = (x >> 5) - 1;
- back = (GETB(c) << 3) + ((x >> 2) & 7) + 1;
- } else if (x > 31) {
- cnt = get_len(&c, x, 31);
- x = GETB(c);
- back = (GETB(c) << 6) + (x >> 2) + 1;
- } else {
- cnt = get_len(&c, x, 7);
- back = (1 << 14) + ((x & 8) << 11);
- x = GETB(c);
- back += (GETB(c) << 6) + (x >> 2);
- if (back == (1 << 14)) {
- if (cnt != 1)
- c.error |= LZO_ERROR;
- break;
- }
- }
- } else if(!state){
- cnt = get_len(&c, x, 15);
- copy(&c, cnt + 3);
- x = GETB(c);
- if (x > 15)
- continue;
- cnt = 1;
- back = (1 << 11) + (GETB(c) << 2) + (x >> 2) + 1;
- } else {
- cnt = 0;
- back = (GETB(c) << 2) + (x >> 2) + 1;
- }
- copy_backptr(&c, back, cnt + 2);
- state=
- cnt = x & 3;
- copy(&c, cnt);
- x = GETB(c);
- }
- *inlen = c.in_end - c.in;
- if (c.in > c.in_end)
- *inlen = 0;
- *outlen = c.out_end - c.out;
- return c.error;
-}
-
-#ifdef TEST
-#include <stdio.h>
-#include <lzo/lzo1x.h>
-#include "log.h"
-#define MAXSZ (10*1024*1024)
-int main(int argc, char *argv[]) {
- FILE *in = fopen(argv[1], "rb");
- uint8_t *orig = av_malloc(MAXSZ + 16);
- uint8_t *comp = av_malloc(2*MAXSZ + 16);
- uint8_t *decomp = av_malloc(MAXSZ + 16);
- size_t s = fread(orig, 1, MAXSZ, in);
- lzo_uint clen = 0;
- long tmp[LZO1X_MEM_COMPRESS];
- int inlen, outlen;
- int i;
- av_log_level = AV_LOG_DEBUG;
- lzo1x_999_compress(orig, s, comp, &clen, tmp);
- for (i = 0; i < 300; i++) {
-START_TIMER
- inlen = clen; outlen = MAXSZ;
-#ifdef LIBLZO
- if (lzo1x_decompress_safe(comp, inlen, decomp, &outlen, NULL))
-#elif defined(LIBLZO_UNSAFE)
- if (lzo1x_decompress(comp, inlen, decomp, &outlen, NULL))
-#else
- if (lzo1x_decode(decomp, &outlen, comp, &inlen))
-#endif
- av_log(NULL, AV_LOG_ERROR, "decompression error\n");
-STOP_TIMER("lzod")
- }
- if (memcmp(orig, decomp, s))
- av_log(NULL, AV_LOG_ERROR, "decompression incorrect\n");
- else
- av_log(NULL, AV_LOG_ERROR, "decompression ok\n");
- return 0;
-}
-#endif
diff --git a/libavcodec/lzo.h b/libavcodec/lzo.h
deleted file mode 100644
index 5b3d98f408..0000000000
--- a/libavcodec/lzo.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * LZO 1x decompression
- * copyright (c) 2006 Reimar Doeffinger
- *
- * 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
- */
-
-#ifndef LZO_H
-#define LZO_H
-
-#define LZO_INPUT_DEPLETED 1
-#define LZO_OUTPUT_FULL 2
-#define LZO_INVALID_BACKPTR 4
-#define LZO_ERROR 8
-
-#define LZO_INPUT_PADDING 8
-#define LZO_OUTPUT_PADDING 12
-
-int lzo1x_decode(void *out, int *outlen, void *in, int *inlen);
-
-#endif
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