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authorMichael Niedermayer <michaelni@gmx.at>2012-04-20 22:18:26 +0200
committerMichael Niedermayer <michaelni@gmx.at>2012-04-20 22:18:26 +0200
commit3194ab78a6c4ea0a4c60c91c4d0ea34028ca408f (patch)
tree13f41910a7e4feec8d64182bf3b6772d88236098 /tests/audiogen.c
parent9b1f776d751472e8a376b412d02a96a35044e2a0 (diff)
parentb0e9edc44f1722787adacbff9aa60343206a58c0 (diff)
Merge remote-tracking branch 'qatar/master'
* qatar/master: avcodec: add a cook parser to get subpacket duration FATE: allow lavf tests to alter input parameters FATE: replace the acodec-pcm_s24daud test with an enc_dec_pcm checksum test FATE: replace the acodec-g726 test with 4 new encode/decode tests FATE: replace current g722 encoding tests with an encode/decode test FATE: add a pattern rule for generating asynth wav files FATE: optionally write a WAVE header in audiogen avutil: add audio fifo buffer Conflicts: doc/APIchanges libavcodec/version.h libavutil/avutil.h tests/Makefile tests/codec-regression.sh tests/fate/voice.mak tests/lavf-regression.sh tests/ref/acodec/g722 tests/ref/acodec/g726 tests/ref/acodec/pcm_s24daud tests/ref/lavf/dv_fmt tests/ref/lavf/gxf tests/ref/lavf/mxf tests/ref/lavf/mxf_d10 tests/ref/seek/lavf_dv Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'tests/audiogen.c')
-rw-r--r--tests/audiogen.c56
1 files changed, 48 insertions, 8 deletions
diff --git a/tests/audiogen.c b/tests/audiogen.c
index 776fdf9316..5818797a65 100644
--- a/tests/audiogen.c
+++ b/tests/audiogen.c
@@ -22,7 +22,9 @@
*/
#include <stdlib.h>
+#include <stdint.h>
#include <stdio.h>
+#include <string.h>
#define MAX_CHANNELS 8
@@ -93,12 +95,45 @@ static int int_cos(int a)
FILE *outfile;
-static void put_sample(int v)
+static void put16(int16_t v)
{
- fputc(v & 0xff, outfile);
+ fputc( v & 0xff, outfile);
fputc((v >> 8) & 0xff, outfile);
}
+static void put32(uint32_t v)
+{
+ fputc( v & 0xff, outfile);
+ fputc((v >> 8) & 0xff, outfile);
+ fputc((v >> 16) & 0xff, outfile);
+ fputc((v >> 24) & 0xff, outfile);
+}
+
+#define HEADER_SIZE 46
+#define FMT_SIZE 18
+#define SAMPLE_SIZE 2
+#define WFORMAT_PCM 0x0001
+
+static void put_wav_header(int sample_rate, int channels, int nb_samples)
+{
+ int block_align = SAMPLE_SIZE * channels;
+ int data_size = block_align * nb_samples;
+
+ fputs("RIFF", outfile);
+ put32(HEADER_SIZE + data_size);
+ fputs("WAVEfmt ", outfile);
+ put32(FMT_SIZE);
+ put16(WFORMAT_PCM);
+ put16(channels);
+ put32(sample_rate);
+ put32(block_align * sample_rate);
+ put16(block_align);
+ put16(SAMPLE_SIZE * 8);
+ put16(0);
+ fputs("data", outfile);
+ put32(data_size);
+}
+
int main(int argc, char **argv)
{
int i, a, v, j, f, amp, ampa;
@@ -107,10 +142,12 @@ int main(int argc, char **argv)
int taba[MAX_CHANNELS];
int sample_rate = 44100;
int nb_channels = 2;
+ char *ext;
if (argc < 2 || argc > 4) {
printf("usage: %s file [<sample rate> [<channels>]]\n"
"generate a test raw 16 bit audio stream\n"
+ "If the file extension is .wav a WAVE header will be added.\n"
"default: 44100 Hz stereo\n", argv[0]);
exit(1);
}
@@ -137,12 +174,15 @@ int main(int argc, char **argv)
return 1;
}
+ if ((ext = strrchr(argv[1], '.')) != NULL && !strcmp(ext, ".wav"))
+ put_wav_header(sample_rate, nb_channels, 6 * sample_rate);
+
/* 1 second of single freq sinus at 1000 Hz */
a = 0;
for (i = 0; i < 1 * sample_rate; i++) {
v = (int_cos(a) * 10000) >> FRAC_BITS;
for (j = 0; j < nb_channels; j++)
- put_sample(v);
+ put16(v);
a += (1000 * FRAC_ONE) / sample_rate;
}
@@ -151,7 +191,7 @@ int main(int argc, char **argv)
for (i = 0; i < 1 * sample_rate; i++) {
v = (int_cos(a) * 10000) >> FRAC_BITS;
for (j = 0; j < nb_channels; j++)
- put_sample(v);
+ put16(v);
f = 100 + (((10000 - 100) * i) / sample_rate);
a += (f * FRAC_ONE) / sample_rate;
}
@@ -160,14 +200,14 @@ int main(int argc, char **argv)
for (i = 0; i < sample_rate / 2; i++) {
v = myrnd(&seed, 20000) - 10000;
for (j = 0; j < nb_channels; j++)
- put_sample(v);
+ put16(v);
}
/* 0.5 second of high amplitude white noise */
for (i = 0; i < sample_rate / 2; i++) {
v = myrnd(&seed, 65535) - 32768;
for (j = 0; j < nb_channels; j++)
- put_sample(v);
+ put16(v);
}
/* 1 second of unrelated ramps for each channel */
@@ -179,7 +219,7 @@ int main(int argc, char **argv)
for (i = 0; i < 1 * sample_rate; i++) {
for (j = 0; j < nb_channels; j++) {
v = (int_cos(taba[j]) * 10000) >> FRAC_BITS;
- put_sample(v);
+ put16(v);
f = tabf1[j] + (((tabf2[j] - tabf1[j]) * i) / sample_rate);
taba[j] += (f * FRAC_ONE) / sample_rate;
}
@@ -194,7 +234,7 @@ int main(int argc, char **argv)
if (j & 1)
amp = 10000 - amp;
v = (int_cos(a) * amp) >> FRAC_BITS;
- put_sample(v);
+ put16(v);
a += (500 * FRAC_ONE) / sample_rate;
ampa += (2 * FRAC_ONE) / sample_rate;
}