mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/tests/rangecoder: Test coder more completely
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -24,41 +24,50 @@
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#include "libavcodec/rangecoder.h"
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#include "libavcodec/rangecoder.h"
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#define SIZE 10240
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#define SIZE 1240
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int main(void)
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int main(void)
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{
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{
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RangeCoder c;
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RangeCoder c;
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uint8_t b[9 * SIZE];
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uint8_t b[9 * SIZE];
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uint8_t r[9 * SIZE];
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uint8_t r[9 * SIZE];
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int i;
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int i, p, actual_length, version;
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uint8_t state[10];
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uint8_t state[10];
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AVLFG prng;
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AVLFG prng;
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av_lfg_init(&prng, 1);
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av_lfg_init(&prng, 1);
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for (version = 0; version < 2; version++) {
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for (p = 0; p< 1024; p++) {
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ff_init_range_encoder(&c, b, SIZE);
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ff_build_rac_states(&c, (1LL << 32) / 20, 128 + 64 + 32 + 16);
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ff_init_range_encoder(&c, b, SIZE);
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memset(state, 128, sizeof(state));
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ff_build_rac_states(&c, (1LL << 32) / 20, 128 + 64 + 32 + 16);
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memset(state, 128, sizeof(state));
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for (i = 0; i < SIZE; i++)
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r[i] = av_lfg_get(&prng) % 7;
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for (i = 0; i < SIZE; i++)
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for (i = 0; i < SIZE; i++)
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r[i] = av_lfg_get(&prng) % 7;
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put_rac(&c, state, r[i] & 1);
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for (i = 0; i < SIZE; i++)
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actual_length = ff_rac_terminate(&c, version);
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put_rac(&c, state, r[i] & 1);
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ff_rac_terminate(&c, 0);
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ff_init_range_decoder(&c, b, version ? SIZE : actual_length);
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ff_init_range_decoder(&c, b, SIZE);
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memset(state, 128, sizeof(state));
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memset(state, 128, sizeof(state));
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for (i = 0; i < SIZE; i++)
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if ((r[i] & 1) != get_rac(&c, state)) {
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for (i = 0; i < SIZE; i++)
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av_log(NULL, AV_LOG_ERROR, "rac failure at %d pass %d version %d\n", i, p, version);
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if ((r[i] & 1) != get_rac(&c, state)) {
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return 1;
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av_log(NULL, AV_LOG_ERROR, "rac failure at %d\n", i);
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}
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return 1;
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if(version)
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get_rac(&c, (uint8_t[]) { 129 });
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if (c.bytestream - c.bytestream_start - actual_length != version) {
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av_log(NULL, AV_LOG_ERROR, "rac failure at pass %d version %d\n", p, version);
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return 1;
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}
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}
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}
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}
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return 0;
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return 0;
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}
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}
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