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92e3a6fdac
Doing this check in avutil_version() is not appropriate. Also, this code is by default disabled (--assert-level is by default 0). A FATE run with defaults will never execute the checks. Move it to the pixelutils test program. Whatever reason there was in avutil_version() not to run this test by default, it should be fine in this test program. This means FATE will run the test by default. (Yes, pixelutils is not strictly the best place for it either, but it's better.) (pixdesc.c also has a small test program, but it's never run by FATE.) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
223 lines
6.1 KiB
C
223 lines
6.1 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "common.h"
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#include "pixelutils.h"
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#include "internal.h"
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#if CONFIG_PIXELUTILS
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#include "x86/pixelutils.h"
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static av_always_inline int sad_wxh(const uint8_t *src1, ptrdiff_t stride1,
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const uint8_t *src2, ptrdiff_t stride2,
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int w, int h)
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{
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int x, y, sum = 0;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++)
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sum += abs(src1[x] - src2[x]);
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src1 += stride1;
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src2 += stride2;
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}
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return sum;
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}
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#define DECLARE_BLOCK_FUNCTIONS(size) \
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static int block_sad_##size##x##size##_c(const uint8_t *src1, ptrdiff_t stride1, \
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const uint8_t *src2, ptrdiff_t stride2) \
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{ \
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return sad_wxh(src1, stride1, src2, stride2, size, size); \
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}
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DECLARE_BLOCK_FUNCTIONS(2)
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DECLARE_BLOCK_FUNCTIONS(4)
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DECLARE_BLOCK_FUNCTIONS(8)
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DECLARE_BLOCK_FUNCTIONS(16)
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static const av_pixelutils_sad_fn sad_c[] = {
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block_sad_2x2_c,
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block_sad_4x4_c,
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block_sad_8x8_c,
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block_sad_16x16_c,
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};
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#endif /* CONFIG_PIXELUTILS */
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av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits, int aligned, void *log_ctx)
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{
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#if !CONFIG_PIXELUTILS
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av_log(log_ctx, AV_LOG_ERROR, "pixelutils support is required "
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"but libavutil is not compiled with it\n");
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return NULL;
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#else
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av_pixelutils_sad_fn sad[FF_ARRAY_ELEMS(sad_c)];
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memcpy(sad, sad_c, sizeof(sad));
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if (w_bits < 1 || w_bits > FF_ARRAY_ELEMS(sad) ||
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h_bits < 1 || h_bits > FF_ARRAY_ELEMS(sad))
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return NULL;
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if (w_bits != h_bits) // only squared sad for now
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return NULL;
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#if ARCH_X86
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ff_pixelutils_sad_init_x86(sad, aligned);
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#endif
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return sad[w_bits - 1];
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#endif
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}
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#ifdef TEST
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#define W1 320
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#define H1 240
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#define W2 640
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#define H2 480
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static int run_single_test(const char *test,
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const uint8_t *block1, ptrdiff_t stride1,
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const uint8_t *block2, ptrdiff_t stride2,
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int align, int n)
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{
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int out, ref;
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av_pixelutils_sad_fn f_ref = sad_c[n - 1];
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av_pixelutils_sad_fn f_out = av_pixelutils_get_sad_fn(n, n, align, NULL);
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switch (align) {
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case 0: block1++; block2++; break;
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case 1: block2++; break;
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case 2: break;
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}
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out = f_out(block1, stride1, block2, stride2);
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ref = f_ref(block1, stride1, block2, stride2);
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printf("[%s] [%c%c] SAD [%s] %dx%d=%d ref=%d\n",
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out == ref ? "OK" : "FAIL",
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align ? 'A' : 'U', align == 2 ? 'A' : 'U',
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test, 1<<n, 1<<n, out, ref);
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return out != ref;
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}
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static int run_test(const char *test,
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const uint8_t *b1, const uint8_t *b2)
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{
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int i, a, ret = 0;
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for (a = 0; a < 3; a++) {
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const uint8_t *block1 = b1;
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const uint8_t *block2 = b2;
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switch (a) {
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case 0: block1++; block2++; break;
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case 1: block2++; break;
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case 2: break;
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}
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for (i = 1; i <= FF_ARRAY_ELEMS(sad_c); i++) {
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int r = run_single_test(test, b1, W1, b2, W2, a, i);
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if (r)
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ret = r;
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}
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}
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return ret;
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}
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int main(void)
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{
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int i, align, ret;
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uint8_t *buf1 = av_malloc(W1*H1);
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uint8_t *buf2 = av_malloc(W2*H2);
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uint32_t state = 0;
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if (!buf1 || !buf2) {
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fprintf(stderr, "malloc failure\n");
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ret = 1;
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goto end;
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}
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ff_check_pixfmt_descriptors();
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#define RANDOM_INIT(buf, size) do { \
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int k; \
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for (k = 0; k < size; k++) { \
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state = state * 1664525 + 1013904223; \
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buf[k] = state>>24; \
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} \
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} while (0)
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/* Normal test with different strides */
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RANDOM_INIT(buf1, W1*H1);
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RANDOM_INIT(buf2, W2*H2);
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ret = run_test("random", buf1, buf2);
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if (ret < 0)
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goto end;
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/* Check for maximum SAD */
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memset(buf1, 0xff, W1*H1);
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memset(buf2, 0x00, W2*H2);
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ret = run_test("max", buf1, buf2);
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if (ret < 0)
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goto end;
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/* Check for minimum SAD */
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memset(buf1, 0x90, W1*H1);
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memset(buf2, 0x90, W2*H2);
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ret = run_test("min", buf1, buf2);
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if (ret < 0)
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goto end;
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/* Exact buffer sizes, to check for overreads */
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for (i = 1; i <= 4; i++) {
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for (align = 0; align < 3; align++) {
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int size1, size2;
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av_freep(&buf1);
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av_freep(&buf2);
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size1 = size2 = 1 << (i << 1);
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switch (align) {
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case 0: size1++; size2++; break;
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case 1: size2++; break;
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case 2: break;
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}
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buf1 = av_malloc(size1);
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buf2 = av_malloc(size2);
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if (!buf1 || !buf2) {
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fprintf(stderr, "malloc failure\n");
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ret = 1;
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goto end;
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}
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RANDOM_INIT(buf1, size1);
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RANDOM_INIT(buf2, size2);
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ret = run_single_test("small", buf1, 1<<i, buf2, 1<<i, align, i);
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if (ret < 0)
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goto end;
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}
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}
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end:
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av_free(buf1);
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av_free(buf2);
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return ret;
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}
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#endif /* TEST */
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