FFmpeg
lzo.c
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1 /*
2  * Copyright (c) 2006 Reimar Doeffinger
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdio.h>
22 #include <lzo/lzo1x.h>
23 
24 #include "libavutil/log.h"
25 #include "libavutil/lzo.h"
26 #include "libavutil/mem.h"
27 
28 #define MAXSZ (10*1024*1024)
29 
30 /* Define one of these to 1 if you wish to benchmark liblzo
31  * instead of our native implementation. */
32 #define BENCHMARK_LIBLZO_SAFE 0
33 #define BENCHMARK_LIBLZO_UNSAFE 0
34 
35 int main(int argc, char *argv[]) {
36  FILE *in = fopen(argv[1], "rb");
37  int comp_level = argc > 2 ? atoi(argv[2]) : 0;
38  uint8_t *orig = av_malloc(MAXSZ + 16);
39  uint8_t *comp = av_malloc(2*MAXSZ + 16);
40  uint8_t *decomp = av_malloc(MAXSZ + 16);
41  size_t s = fread(orig, 1, MAXSZ, in);
42  lzo_uint clen = 0;
43  long tmp[LZO1X_MEM_COMPRESS];
44  int inlen, outlen;
45  int i;
47  if (comp_level == 0) {
48  lzo1x_1_compress(orig, s, comp, &clen, tmp);
49  } else if (comp_level == 11) {
50  lzo1x_1_11_compress(orig, s, comp, &clen, tmp);
51  } else if (comp_level == 12) {
52  lzo1x_1_12_compress(orig, s, comp, &clen, tmp);
53  } else if (comp_level == 15) {
54  lzo1x_1_15_compress(orig, s, comp, &clen, tmp);
55  } else
56  lzo1x_999_compress(orig, s, comp, &clen, tmp);
57  for (i = 0; i < 300; i++) {
59  inlen = clen; outlen = MAXSZ;
60 #if BENCHMARK_LIBLZO_SAFE
61  if (lzo1x_decompress_safe(comp, inlen, decomp, &outlen, NULL))
62 #elif BENCHMARK_LIBLZO_UNSAFE
63  if (lzo1x_decompress(comp, inlen, decomp, &outlen, NULL))
64 #else
65  if (av_lzo1x_decode(decomp, &outlen, comp, &inlen))
66 #endif
67  av_log(NULL, AV_LOG_ERROR, "decompression error\n");
68 STOP_TIMER("lzod")
69  }
70  if (memcmp(orig, decomp, s))
71  av_log(NULL, AV_LOG_ERROR, "decompression incorrect\n");
72  else
73  av_log(NULL, AV_LOG_ERROR, "decompression OK\n");
74  fclose(in);
75  av_free(orig);
76  av_free(comp);
77  av_free(decomp);
78  return 0;
79 }
#define NULL
Definition: coverity.c:32
Memory handling functions.
void av_log_set_level(int level)
Set the log level.
Definition: log.c:440
uint8_t
#define av_malloc(s)
#define av_log(a,...)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
#define s(width, name)
Definition: cbs_vp9.c:257
int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen)
Decodes LZO 1x compressed data.
Definition: lzo.c:134
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
Definition: eamad.c:83
#define START_TIMER
Definition: timer.h:137
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31))))#define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac){}void ff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map){AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);return NULL;}return ac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;}int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){int use_generic=1;int len=in->nb_samples;int p;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
#define STOP_TIMER(id)
Definition: timer.h:138
#define av_free(p)
int main(int argc, char *argv[])
Definition: lzo.c:35
#define MAXSZ
Definition: lzo.c:28
int i
Definition: input.c:407
static uint8_t tmp[11]
Definition: aes_ctr.c:26