64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
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#include "../compat/compat.h"
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#include <mpg123.h>
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#include "../common/debug.h"
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int work(mpg123_handle *mh, int ch, int enc)
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{
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int16_t buffer[16348];
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long rate;
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int channels, encoding;
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if(mpg123_getformat(mh, &rate, &channels, &encoding) != MPG123_OK)
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return 1;
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if(channels != ch || encoding != enc)
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{
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error("channel/encoding mismatch");
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return 1;
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}
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fprintf(stderr, "openend fixed track with %ld %d %d\n"
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, rate, channels, encoding );
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int ret;
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size_t done;
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while( (ret=mpg123_read(mh, buffer, sizeof(buffer), &done)) == MPG123_OK)
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{
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if(!done)
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continue;
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fprintf(stderr, "Got first sample %d and last sample %d out of %zu\n"
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, buffer[0], buffer[done/sizeof(*buffer)-1], done/sizeof(*buffer) );
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INT123_unintr_write(STDOUT_FILENO, buffer, done);
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}
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if(ret != MPG123_DONE)
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{
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merror( "wrong mpg123_read() return value %d (%s, %s)"
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, ret, mpg123_plain_strerror(ret), mpg123_strerror(mh) );
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return 1;
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} else
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return 0;
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}
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int main(int argc, char **argv)
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{
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int ret = 1;
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int enc = MPG123_ENC_SIGNED_16;
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if(!mpg123_feature2(MPG123_FEATURE_OUTPUT_16BIT))
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{
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error("Libmpg123 doesn't do 16 bit output, cannot test.");
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return 1;
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}
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if(argc < 2)
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{
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printf("Gimme a MPEG file name...\n");
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return 0;
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}
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// Intentionally no error checking here. Let's see how the lib deals with it.
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mpg123_handle *mh = mpg123_new(NULL, NULL);
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// Try to set decoder to generic to avoid memory sanitizer freaking out about
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// asssembly synth routines.
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mpg123_decoder(mh, "generic");
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// Let's fix it to mono.
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if(mpg123_open_fixed(mh, argv[1], MPG123_MONO, enc) == MPG123_OK)
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ret = work(mh, 1, enc);
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mpg123_delete(mh);
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return ret;
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}
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