mirror of https://github.com/FFmpeg/FFmpeg.git
added first version of regression tests - simply type 'make test' to test every codec and some mux/demuxes - added simple synthetic audio and video bitstreams generators so that no big streams needs to be used
Originally committed as revision 532 to svn://svn.ffmpeg.org/ffmpeg/trunkpull/126/head
Fabrice Bellard
23 years ago
parent
0f1578afcc
commit
51133a7db0
5 changed files with 646 additions and 0 deletions
@ -0,0 +1,40 @@ |
||||
#
|
||||
# Makefile for tests
|
||||
# (c) 2002 Gerard Lantau
|
||||
#
|
||||
include ../config.mak |
||||
|
||||
VPATH=$(SRC_PATH)/tests
|
||||
CFLAGS=-O2 -Wall -g
|
||||
REFFILE=$(SRC_PATH)/tests/ffmpeg.regression.ref
|
||||
|
||||
all: test |
||||
|
||||
# fast regression tests for all codecs
|
||||
test mpeg4 mpeg: vsynth1/0.pgm asynth1.sw |
||||
@$(SRC_PATH)/tests/regression.sh $@ $(REFFILE)
|
||||
|
||||
# update the regression test with the current results
|
||||
updatetest: |
||||
cp /tmp/ffmpeg.regression $(REFFILE)
|
||||
|
||||
# video generation
|
||||
|
||||
vsynth1/0.pgm: videogen |
||||
@mkdir -p vsynth1
|
||||
./videogen 'vsynth1/'
|
||||
|
||||
videogen: videogen.c |
||||
$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $<
|
||||
|
||||
# audio generation
|
||||
|
||||
asynth1.sw: audiogen |
||||
./audiogen $@
|
||||
|
||||
audiogen: audiogen.c |
||||
$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $<
|
||||
|
||||
clean: |
||||
rm -rf vsynth1
|
||||
rm -f asynth1.sw *~ audiogen videogen
|
||||
@ -0,0 +1,168 @@ |
||||
/*
|
||||
* Generates a synthetic stereo sound |
||||
* NOTE: no floats are used to guaranty a bit exact output. |
||||
*/ |
||||
#include <stdlib.h> |
||||
#include <stdio.h> |
||||
|
||||
#define NB_CHANNELS 2 |
||||
#define FE 44100 |
||||
|
||||
static unsigned int myrnd(unsigned int *seed_ptr, int n) |
||||
{ |
||||
unsigned int seed, val; |
||||
|
||||
seed = *seed_ptr; |
||||
seed = (seed * 314159) + 1; |
||||
if (n == 256) { |
||||
val = seed >> 24; |
||||
} else { |
||||
val = seed % n; |
||||
} |
||||
*seed_ptr = seed; |
||||
return val; |
||||
} |
||||
|
||||
#define FRAC_BITS 16 |
||||
#define FRAC_ONE (1 << FRAC_BITS) |
||||
|
||||
#define COS_TABLE_BITS 7 |
||||
|
||||
/* integer cosinus */ |
||||
static const unsigned short cos_table[(1 << COS_TABLE_BITS) + 2] = { |
||||
0x8000, 0x7ffe, 0x7ff6, 0x7fea, 0x7fd9, 0x7fc2, 0x7fa7, 0x7f87, |
||||
0x7f62, 0x7f38, 0x7f0a, 0x7ed6, 0x7e9d, 0x7e60, 0x7e1e, 0x7dd6, |
||||
0x7d8a, 0x7d3a, 0x7ce4, 0x7c89, 0x7c2a, 0x7bc6, 0x7b5d, 0x7aef, |
||||
0x7a7d, 0x7a06, 0x798a, 0x790a, 0x7885, 0x77fb, 0x776c, 0x76d9, |
||||
0x7642, 0x75a6, 0x7505, 0x7460, 0x73b6, 0x7308, 0x7255, 0x719e, |
||||
0x70e3, 0x7023, 0x6f5f, 0x6e97, 0x6dca, 0x6cf9, 0x6c24, 0x6b4b, |
||||
0x6a6e, 0x698c, 0x68a7, 0x67bd, 0x66d0, 0x65de, 0x64e9, 0x63ef, |
||||
0x62f2, 0x61f1, 0x60ec, 0x5fe4, 0x5ed7, 0x5dc8, 0x5cb4, 0x5b9d, |
||||
0x5a82, 0x5964, 0x5843, 0x571e, 0x55f6, 0x54ca, 0x539b, 0x5269, |
||||
0x5134, 0x4ffb, 0x4ec0, 0x4d81, 0x4c40, 0x4afb, 0x49b4, 0x486a, |
||||
0x471d, 0x45cd, 0x447b, 0x4326, 0x41ce, 0x4074, 0x3f17, 0x3db8, |
||||
0x3c57, 0x3af3, 0x398d, 0x3825, 0x36ba, 0x354e, 0x33df, 0x326e, |
||||
0x30fc, 0x2f87, 0x2e11, 0x2c99, 0x2b1f, 0x29a4, 0x2827, 0x26a8, |
||||
0x2528, 0x23a7, 0x2224, 0x209f, 0x1f1a, 0x1d93, 0x1c0c, 0x1a83, |
||||
0x18f9, 0x176e, 0x15e2, 0x1455, 0x12c8, 0x113a, 0x0fab, 0x0e1c, |
||||
0x0c8c, 0x0afb, 0x096b, 0x07d9, 0x0648, 0x04b6, 0x0324, 0x0192, |
||||
0x0000, 0x0000, |
||||
}; |
||||
|
||||
#define CSHIFT (FRAC_BITS - COS_TABLE_BITS - 2) |
||||
|
||||
static int int_cos(int a) |
||||
{ |
||||
int neg, v, f; |
||||
const unsigned short *p; |
||||
|
||||
a = a & (FRAC_ONE - 1); /* modulo 2 * pi */ |
||||
if (a >= (FRAC_ONE / 2)) |
||||
a = FRAC_ONE - a; |
||||
neg = 0; |
||||
if (a > (FRAC_ONE / 4)) { |
||||
neg = -1; |
||||
a = (FRAC_ONE / 2) - a; |
||||
} |
||||
p = cos_table + (a >> CSHIFT); |
||||
/* linear interpolation */ |
||||
f = a & ((1 << CSHIFT) - 1); |
||||
v = p[0] + (((p[1] - p[0]) * f + (1 << (CSHIFT - 1))) >> CSHIFT); |
||||
v = (v ^ neg) - neg; |
||||
v = v << (FRAC_BITS - 15); |
||||
return v; |
||||
} |
||||
|
||||
FILE *outfile; |
||||
|
||||
void put_sample(int v) |
||||
{ |
||||
fputc(v & 0xff, outfile); |
||||
fputc((v >> 8) & 0xff, outfile); |
||||
} |
||||
|
||||
int main(int argc, char **argv) |
||||
{ |
||||
int i, a, v, j, f, amp, ampa; |
||||
unsigned int seed = 1; |
||||
int tabf1[NB_CHANNELS], tabf2[NB_CHANNELS]; |
||||
int taba[NB_CHANNELS]; |
||||
|
||||
if (argc != 2) { |
||||
printf("usage: %s file\n" |
||||
"generate a test raw 16 bit stereo audio stream\n", argv[0]); |
||||
exit(1); |
||||
} |
||||
|
||||
outfile = fopen(argv[1], "w"); |
||||
if (!outfile) { |
||||
perror(argv[1]); |
||||
return 1; |
||||
} |
||||
|
||||
/* 1 second of single freq sinus at 1000 Hz */ |
||||
a = 0; |
||||
for(i=0;i<1 * FE;i++) { |
||||
v = (int_cos(a) * 10000) >> FRAC_BITS; |
||||
for(j=0;j<NB_CHANNELS;j++) |
||||
put_sample(v); |
||||
a += (1000 * FRAC_ONE) / FE; |
||||
} |
||||
|
||||
/* 1 second of varing frequency between 100 and 10000 Hz */ |
||||
a = 0; |
||||
for(i=0;i<1 * FE;i++) { |
||||
v = (int_cos(a) * 10000) >> FRAC_BITS; |
||||
for(j=0;j<NB_CHANNELS;j++) |
||||
put_sample(v); |
||||
f = 100 + (((10000 - 100) * i) / FE); |
||||
a += (f * FRAC_ONE) / FE; |
||||
} |
||||
|
||||
/* 0.5 second of low amplitude white noise */ |
||||
for(i=0;i<FE / 2;i++) { |
||||
v = myrnd(&seed, 20000) - 10000; |
||||
for(j=0;j<NB_CHANNELS;j++) |
||||
put_sample(v); |
||||
} |
||||
|
||||
/* 0.5 second of high amplitude white noise */ |
||||
for(i=0;i<FE / 2;i++) { |
||||
v = myrnd(&seed, 65535) - 32768; |
||||
for(j=0;j<NB_CHANNELS;j++) |
||||
put_sample(v); |
||||
} |
||||
|
||||
/* stereo : 2 unrelated ramps */ |
||||
for(j=0;j<NB_CHANNELS;j++) { |
||||
taba[j] = 0; |
||||
tabf1[j] = 100 + myrnd(&seed, 5000); |
||||
tabf2[j] = 100 + myrnd(&seed, 5000); |
||||
} |
||||
for(i=0;i<1 * FE;i++) { |
||||
for(j=0;j<NB_CHANNELS;j++) { |
||||
v = (int_cos(taba[j]) * 10000) >> FRAC_BITS; |
||||
put_sample(v); |
||||
f = tabf1[j] + (((tabf2[j] - tabf1[j]) * i) / FE); |
||||
taba[j] += (f * FRAC_ONE) / FE; |
||||
} |
||||
} |
||||
|
||||
/* stereo 500 Hz with varying volume */ |
||||
a = 0; |
||||
ampa = 0; |
||||
for(i=0;i<2 * FE;i++) { |
||||
for(j=0;j<NB_CHANNELS;j++) { |
||||
amp = ((FRAC_ONE + int_cos(ampa)) * 5000) >> FRAC_BITS; |
||||
if (j & 1) |
||||
amp = 10000 - amp; |
||||
v = (int_cos(a) * amp) >> FRAC_BITS; |
||||
put_sample(v); |
||||
a += (500 * FRAC_ONE) / FE; |
||||
ampa += (2 * FRAC_ONE) / FE; |
||||
} |
||||
} |
||||
|
||||
fclose(outfile); |
||||
return 0; |
||||
} |
||||
@ -0,0 +1,15 @@ |
||||
ffmpeg regression test |
||||
5f79a1de94818e085d283612c979209e /tmp/a-mpeg1.mpg |
||||
ec8038d872249d000ef3ced8a929d852 /tmp/out.yuv |
||||
0d2929a5ca7d59404ae302ceaef34ad0 /tmp/a-msmpeg4.avi |
||||
78f75bae681ad659d8433be5c5be4355 /tmp/out.yuv |
||||
dbdfcaec083cb2ff9484369d51b5dd37 /tmp/a-h263.avi |
||||
dd556b4cab001f91594ed5198c0076e9 /tmp/out.yuv |
||||
fa29e99ad3314a5ef6881f3fcad374e7 /tmp/a-odivx.avi |
||||
42d47bf027f72cba83ea23b9755937bd /tmp/out.yuv |
||||
ff06a0b59e445d2694185a08e1000801 /tmp/a-mjpeg.avi |
||||
6551ec4dea416fa3e8f3538d206f236f /tmp/out.yuv |
||||
21f8ff9f1daacd9133683bb4ea0f50a4 /tmp/a-mp2.mp2 |
||||
66ba0fcbf3ed6310d54a71611e16a59c /tmp/out.wav |
||||
048b9c3444c788bac6ce5cc3a8f4db00 /tmp/a-ac3.rm |
||||
ae59a9cf43ee96b3214567ce8a25aa31 /tmp/out.wav |
||||
@ -0,0 +1,145 @@ |
||||
#!/bin/sh |
||||
# |
||||
# automatic regression test for ffmpeg |
||||
# |
||||
# |
||||
#set -x |
||||
set -e |
||||
|
||||
# tests to do |
||||
if [ "$1" = "mpeg4" ] ; then |
||||
do_mpeg4=y |
||||
elif [ "$1" = "mpeg" ] ; then |
||||
do_mpeg=y |
||||
else |
||||
do_mpeg=y |
||||
do_msmpeg4=y |
||||
do_h263=y |
||||
do_mpeg4=y |
||||
do_mjpeg=y |
||||
#do_rv10=y #broken! |
||||
do_mp2=y |
||||
do_ac3=y |
||||
fi |
||||
|
||||
|
||||
# various files |
||||
ffmpeg="../ffmpeg" |
||||
outfile="/tmp/a-" |
||||
reffile="$2" |
||||
logfile="/tmp/ffmpeg.regression" |
||||
benchfile="/tmp/ffmpeg.bench" |
||||
raw_src="vsynth1/%d.pgm" |
||||
raw_dst="/tmp/out.yuv" |
||||
pcm_src="asynth1.sw" |
||||
pcm_dst="/tmp/out.wav" |
||||
|
||||
function do_ffmpeg () |
||||
{ |
||||
f="$1" |
||||
shift |
||||
echo $ffmpeg $* |
||||
$ffmpeg -benchmark $* > /tmp/bench.tmp |
||||
md5sum $f >> $logfile |
||||
expr match "`cat /tmp/bench.tmp`" '.*utime=\(.*s\)' > /tmp/bench2.tmp |
||||
echo `cat /tmp/bench2.tmp` $f >> $benchfile |
||||
} |
||||
|
||||
|
||||
echo "ffmpeg regression test" > $logfile |
||||
echo "ffmpeg benchmarks" > $benchfile |
||||
|
||||
################################### |
||||
if [ -n "$do_mpeg" ] ; then |
||||
# mpeg1 encoding |
||||
file=${outfile}mpeg1.mpg |
||||
do_ffmpeg $file -y -qscale 10 -f pgmyuv -i $raw_src -f mpegvideo $file |
||||
|
||||
# mpeg1 decoding |
||||
do_ffmpeg $raw_dst -y -f mpegvideo -i $file -f rawvideo $raw_dst |
||||
|
||||
# mpeg2 decoding |
||||
#do_ffmpeg /tmp/out-mpeg2.yuv -y -f mpegvideo -i a.vob \ |
||||
# -f rawvideo /tmp/out-mpeg2.yuv |
||||
fi |
||||
|
||||
################################### |
||||
if [ -n "$do_msmpeg4" ] ; then |
||||
# msmpeg4 encoding |
||||
file=${outfile}msmpeg4.avi |
||||
do_ffmpeg $file -y -qscale 10 -f pgmyuv -i $raw_src -an -vcodec msmpeg4 $file |
||||
|
||||
# msmpeg4 decoding |
||||
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst |
||||
fi |
||||
|
||||
################################### |
||||
if [ -n "$do_h263" ] ; then |
||||
# h263 encoding |
||||
file=${outfile}h263.avi |
||||
do_ffmpeg $file -y -qscale 10 -f pgmyuv -i $raw_src -s 352x288 -an -vcodec h263 $file |
||||
|
||||
# h263p decoding |
||||
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst |
||||
fi |
||||
|
||||
################################### |
||||
if [ -n "$do_mpeg4" ] ; then |
||||
# mpeg4 |
||||
file=${outfile}odivx.avi |
||||
do_ffmpeg $file -y -qscale 10 -f pgmyuv -i $raw_src -an -vcodec mpeg4 $file |
||||
|
||||
# mpeg4 decoding |
||||
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst |
||||
fi |
||||
|
||||
################################### |
||||
if [ -n "$do_mjpeg" ] ; then |
||||
# mjpeg |
||||
file=${outfile}mjpeg.avi |
||||
do_ffmpeg $file -y -qscale 10 -f pgmyuv -i $raw_src -an -vcodec mjpeg $file |
||||
|
||||
# mjpeg decoding |
||||
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst |
||||
fi |
||||
|
||||
################################### |
||||
if [ -n "$do_rv10" ] ; then |
||||
# rv10 encoding |
||||
file=${outfile}rv10.rm |
||||
do_ffmpeg $file -y -qscale 10 -f pgmyuv -i $raw_src -an $file |
||||
|
||||
# rv10 decoding |
||||
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst |
||||
fi |
||||
|
||||
################################### |
||||
if [ -n "$do_mp2" ] ; then |
||||
# mp2 encoding |
||||
file=${outfile}mp2.mp2 |
||||
do_ffmpeg $file -y -ab 128 -ac 2 -ar 44100 -f s16le -i $pcm_src $file |
||||
|
||||
# mp2 decoding |
||||
do_ffmpeg $pcm_dst -y -i $file -f wav $pcm_dst |
||||
fi |
||||
|
||||
################################### |
||||
if [ -n "$do_ac3" ] ; then |
||||
# ac3 encoding |
||||
file=${outfile}ac3.rm |
||||
do_ffmpeg $file -y -ab 128 -ac 2 -f s16le -i $pcm_src -vn $file |
||||
|
||||
# ac3 decoding |
||||
do_ffmpeg $pcm_dst -y -i $file -f wav $pcm_dst |
||||
fi |
||||
|
||||
|
||||
if diff -u $logfile $reffile ; then |
||||
echo |
||||
echo Regression test succeeded. |
||||
exit 0 |
||||
else |
||||
echo |
||||
echo Regression test: Error. |
||||
exit 1 |
||||
fi |
||||
@ -0,0 +1,278 @@ |
||||
/*
|
||||
* Generates a synthetic YUV video sequence suitable for codec testing. |
||||
* NOTE: no floats are used to guaranty a bit exact output. |
||||
*/ |
||||
#include <stdlib.h> |
||||
#include <stdio.h> |
||||
|
||||
#define SCALEBITS 8 |
||||
#define ONE_HALF (1 << (SCALEBITS - 1)) |
||||
#define FIX(x) ((int) ((x) * (1L<<SCALEBITS) + 0.5)) |
||||
typedef unsigned char UINT8; |
||||
|
||||
static void rgb24_to_yuv420p(UINT8 *lum, UINT8 *cb, UINT8 *cr, |
||||
UINT8 *src, int width, int height) |
||||
{ |
||||
int wrap, wrap3, x, y; |
||||
int r, g, b, r1, g1, b1; |
||||
UINT8 *p; |
||||
|
||||
wrap = width; |
||||
wrap3 = width * 3; |
||||
p = src; |
||||
for(y=0;y<height;y+=2) { |
||||
for(x=0;x<width;x+=2) { |
||||
r = p[0]; |
||||
g = p[1]; |
||||
b = p[2]; |
||||
r1 = r; |
||||
g1 = g; |
||||
b1 = b; |
||||
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; |
||||
r = p[3]; |
||||
g = p[4]; |
||||
b = p[5]; |
||||
r1 += r; |
||||
g1 += g; |
||||
b1 += b; |
||||
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; |
||||
p += wrap3; |
||||
lum += wrap; |
||||
|
||||
r = p[0]; |
||||
g = p[1]; |
||||
b = p[2]; |
||||
r1 += r; |
||||
g1 += g; |
||||
b1 += b; |
||||
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; |
||||
r = p[3]; |
||||
g = p[4]; |
||||
b = p[5]; |
||||
r1 += r; |
||||
g1 += g; |
||||
b1 += b; |
||||
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g +
|
||||
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; |
||||
|
||||
cb[0] = ((- FIX(0.16874) * r1 - FIX(0.33126) * g1 +
|
||||
FIX(0.50000) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128; |
||||
cr[0] = ((FIX(0.50000) * r1 - FIX(0.41869) * g1 -
|
||||
FIX(0.08131) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128; |
||||
|
||||
cb++; |
||||
cr++; |
||||
p += -wrap3 + 2 * 3; |
||||
lum += -wrap + 2; |
||||
} |
||||
p += wrap3; |
||||
lum += wrap; |
||||
} |
||||
} |
||||
|
||||
/* cif format */ |
||||
#define DEFAULT_WIDTH 352 |
||||
#define DEFAULT_HEIGHT 288 |
||||
#define DEFAULT_NB_PICT 125 /* 5 seconds */ |
||||
|
||||
void pgmyuv_save(const char *filename, int w, int h, |
||||
unsigned char *rgb_tab) |
||||
{ |
||||
FILE *f; |
||||
int i, h2, w2; |
||||
unsigned char *cb, *cr; |
||||
unsigned char *lum_tab, *cb_tab, *cr_tab; |
||||
|
||||
lum_tab = malloc(w * h); |
||||
cb_tab = malloc((w * h) / 4); |
||||
cr_tab = malloc((w * h) / 4); |
||||
|
||||
rgb24_to_yuv420p(lum_tab, cb_tab, cr_tab, rgb_tab, w, h); |
||||
|
||||
f = fopen(filename,"w"); |
||||
fprintf(f, "P5\n%d %d\n%d\n", w, (h * 3) / 2, 255); |
||||
fwrite(lum_tab, 1, w * h, f); |
||||
h2 = h / 2; |
||||
w2 = w / 2; |
||||
cb = cb_tab; |
||||
cr = cr_tab; |
||||
for(i=0;i<h2;i++) { |
||||
fwrite(cb, 1, w2, f); |
||||
fwrite(cr, 1, w2, f); |
||||
cb += w2; |
||||
cr += w2; |
||||
} |
||||
fclose(f); |
||||
|
||||
free(lum_tab); |
||||
free(cb_tab); |
||||
free(cr_tab); |
||||
} |
||||
|
||||
unsigned char *rgb_tab; |
||||
int width, height, wrap; |
||||
|
||||
void put_pixel(int x, int y, int r, int g, int b) |
||||
{ |
||||
unsigned char *p; |
||||
|
||||
if (x < 0 || x >= width || |
||||
y < 0 || y >= height) |
||||
return; |
||||
|
||||
p = rgb_tab + y * wrap + x * 3; |
||||
p[0] = r; |
||||
p[1] = g; |
||||
p[2] = b; |
||||
} |
||||
|
||||
static unsigned int myrnd(unsigned int *seed_ptr, int n) |
||||
{ |
||||
unsigned int seed, val; |
||||
|
||||
seed = *seed_ptr; |
||||
seed = (seed * 314159) + 1; |
||||
if (n == 256) { |
||||
val = seed >> 24; |
||||
} else { |
||||
val = seed % n; |
||||
} |
||||
*seed_ptr = seed; |
||||
return val; |
||||
} |
||||
|
||||
#define NOISE_X 10 |
||||
#define NOISE_Y 30 |
||||
#define NOISE_W 26 |
||||
|
||||
#define FRAC_BITS 8 |
||||
#define FRAC_ONE (1 << FRAC_BITS) |
||||
|
||||
/* cosine approximate with 1-x^2 */ |
||||
int int_cos(int a) |
||||
{ |
||||
int v, neg; |
||||
a = a & (FRAC_ONE - 1); |
||||
if (a >= (FRAC_ONE / 2)) |
||||
a = FRAC_ONE - a; |
||||
neg = 0; |
||||
if (a > (FRAC_ONE / 4)) { |
||||
neg = -1; |
||||
a = (FRAC_ONE / 2) - a; |
||||
} |
||||
v = FRAC_ONE - ((a * a) >> 4); |
||||
v = (v ^ neg) - neg; |
||||
return v; |
||||
} |
||||
|
||||
#define NB_OBJS 10 |
||||
|
||||
typedef struct VObj { |
||||
int x, y, w, h; |
||||
int r, g, b; |
||||
} VObj; |
||||
|
||||
VObj objs[NB_OBJS]; |
||||
|
||||
unsigned int seed = 1; |
||||
|
||||
void gen_image(int num, int w, int h) |
||||
{ |
||||
int r, g, b, x, y, i, dx, dy, x1, y1; |
||||
unsigned int seed1; |
||||
|
||||
if (num == 0) { |
||||
for(i=0;i<NB_OBJS;i++) { |
||||
objs[i].x = myrnd(&seed, w); |
||||
objs[i].y = myrnd(&seed, h); |
||||
objs[i].w = myrnd(&seed, w / 4) + 10; |
||||
objs[i].h = myrnd(&seed, h / 4) + 10; |
||||
objs[i].r = myrnd(&seed, 256); |
||||
objs[i].g = myrnd(&seed, 256); |
||||
objs[i].b = myrnd(&seed, 256); |
||||
} |
||||
} |
||||
|
||||
/* first a moving background with gradients */ |
||||
/* test motion estimation */ |
||||
dx = int_cos(num * FRAC_ONE / 50) * 35; |
||||
dy = int_cos(num * FRAC_ONE / 50 + FRAC_ONE / 10) * 30; |
||||
for(y=0;y<h;y++) { |
||||
for(x=0;x<w;x++) { |
||||
x1 = (x << FRAC_BITS) + dx; |
||||
y1 = (y << FRAC_BITS) + dx; |
||||
r = ((y1 * 7) >> FRAC_BITS) & 0xff; |
||||
g = (((x1 + y1) * 9) >> FRAC_BITS) & 0xff; |
||||
b = ((x1 * 5) >> FRAC_BITS) & 0xff; |
||||
put_pixel(x, y, r, g, b); |
||||
} |
||||
} |
||||
|
||||
/* then some noise with very high intensity to test saturation */ |
||||
seed1 = num; |
||||
for(y=0;y<NOISE_W;y++) { |
||||
for(x=0;x<NOISE_W;x++) { |
||||
r = myrnd(&seed1, 256); |
||||
g = myrnd(&seed1, 256); |
||||
b = myrnd(&seed1, 256); |
||||
put_pixel(x + NOISE_X, y + NOISE_Y, r, g, b); |
||||
} |
||||
} |
||||
|
||||
/* then moving objects */ |
||||
for(i=0;i<NB_OBJS;i++) { |
||||
VObj *p = &objs[i]; |
||||
seed1 = i; |
||||
for(y=0;y<p->h;y++) { |
||||
for(x=0;x<p->w;x++) { |
||||
r = p->r; |
||||
g = p->g; |
||||
b = p->b; |
||||
/* add a per object noise */ |
||||
r += myrnd(&seed1, 50); |
||||
g += myrnd(&seed1, 50); |
||||
b += myrnd(&seed1, 50); |
||||
put_pixel(x + p->x, y + p->y, r, g, b); |
||||
} |
||||
} |
||||
p->x += myrnd(&seed, 21) - 10; |
||||
p->y += myrnd(&seed, 21) - 10; |
||||
} |
||||
} |
||||
|
||||
int main(int argc, char **argv) |
||||
{ |
||||
int w, h, i; |
||||
char buf[1024]; |
||||
|
||||
if (argc != 2) { |
||||
printf("usage: %s file\n" |
||||
"generate a test video stream\n", argv[0]); |
||||
exit(1); |
||||
} |
||||
|
||||
#if 0 |
||||
for(i=0;i<256;i++) |
||||
printf("cos(%d)=%d\n", i, int_cos(i)); |
||||
#endif |
||||
|
||||
w = DEFAULT_WIDTH; |
||||
h = DEFAULT_HEIGHT; |
||||
|
||||
rgb_tab = malloc(w * h * 3); |
||||
wrap = w * 3; |
||||
width = w; |
||||
height = h; |
||||
|
||||
for(i=0;i<DEFAULT_NB_PICT;i++) { |
||||
snprintf(buf, sizeof(buf), "%s%d.pgm", argv[1], i); |
||||
gen_image(i, w, h); |
||||
pgmyuv_save(buf, w, h, rgb_tab); |
||||
} |
||||
|
||||
free(rgb_tab); |
||||
return 0; |
||||
} |
||||
Loading…
Reference in new issue