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-rw-r--r--third_party/dav1d/tests/seek_stress.c243
1 files changed, 243 insertions, 0 deletions
diff --git a/third_party/dav1d/tests/seek_stress.c b/third_party/dav1d/tests/seek_stress.c
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+++ b/third_party/dav1d/tests/seek_stress.c
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+/*
+ * Copyright © 2020, VideoLAN and dav1d authors
+ * Copyright © 2020, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "vcs_version.h"
+#include "cli_config.h"
+
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "dav1d/dav1d.h"
+#include "input/input.h"
+#include "input/demuxer.h"
+#include "dav1d_cli_parse.h"
+
+#define NUM_RAND_SEEK 3
+#define NUM_REL_SEEK 4
+#define NUM_END_SEEK 2
+
+const Demuxer annexb_demuxer = { .name = "" };
+const Demuxer section5_demuxer = { .name = "" };
+
+#ifdef _WIN32
+#include <windows.h>
+static unsigned get_seed(void) {
+ return GetTickCount();
+}
+#else
+#ifdef __APPLE__
+#include <mach/mach_time.h>
+#else
+#include <time.h>
+#endif
+static unsigned get_seed(void) {
+#ifdef __APPLE__
+ return (unsigned) mach_absolute_time();
+#elif defined(HAVE_CLOCK_GETTIME)
+ struct timespec ts;
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ return (unsigned) (1000000000ULL * ts.tv_sec + ts.tv_nsec);
+#endif
+}
+#endif
+
+static uint32_t xs_state[4];
+
+static void xor128_srand(unsigned seed) {
+ xs_state[0] = seed;
+ xs_state[1] = ( seed & 0xffff0000) | (~seed & 0x0000ffff);
+ xs_state[2] = (~seed & 0xffff0000) | ( seed & 0x0000ffff);
+ xs_state[3] = ~seed;
+}
+
+// xor128 from Marsaglia, George (July 2003). "Xorshift RNGs".
+// Journal of Statistical Software. 8 (14).
+// doi:10.18637/jss.v008.i14.
+static int xor128_rand(void) {
+ const uint32_t x = xs_state[0];
+ const uint32_t t = x ^ (x << 11);
+
+ xs_state[0] = xs_state[1];
+ xs_state[1] = xs_state[2];
+ xs_state[2] = xs_state[3];
+ uint32_t w = xs_state[3];
+
+ w = (w ^ (w >> 19)) ^ (t ^ (t >> 8));
+ xs_state[3] = w;
+
+ return w >> 1;
+}
+
+static inline int decode_frame(Dav1dPicture *const p,
+ Dav1dContext *const c, Dav1dData *const data)
+{
+ int res;
+ memset(p, 0, sizeof(*p));
+ if ((res = dav1d_send_data(c, data)) < 0) {
+ if (res != DAV1D_ERR(EAGAIN)) {
+ fprintf(stderr, "Error decoding frame: %s\n",
+ strerror(DAV1D_ERR(res)));
+ return res;
+ }
+ }
+ if ((res = dav1d_get_picture(c, p)) < 0) {
+ if (res != DAV1D_ERR(EAGAIN)) {
+ fprintf(stderr, "Error decoding frame: %s\n",
+ strerror(DAV1D_ERR(res)));
+ return res;
+ }
+ } else dav1d_picture_unref(p);
+ return 0;
+}
+
+static int decode_rand(DemuxerContext *const in, Dav1dContext *const c,
+ Dav1dData *const data, const double fps)
+{
+ int res = 0;
+ Dav1dPicture p;
+ const int num_frames = xor128_rand() % (int)(fps * 5);
+ for (int i = 0; i < num_frames; i++) {
+ if ((res = decode_frame(&p, c, data))) break;
+ if (input_read(in, data) || data->sz == 0) break;
+ }
+ return res;
+}
+
+static int decode_all(DemuxerContext *const in,
+ Dav1dContext *const c, Dav1dData *const data)
+{
+ int res = 0;
+ Dav1dPicture p;
+ do { if ((res = decode_frame(&p, c, data))) break;
+ } while (!input_read(in, data) && data->sz > 0);
+ return res;
+}
+
+static int seek(DemuxerContext *const in, Dav1dContext *const c,
+ const uint64_t pts, Dav1dData *const data)
+{
+ int res;
+ if ((res = input_seek(in, pts))) return res;
+ Dav1dSequenceHeader seq;
+ do { if ((res = input_read(in, data))) break;
+ } while (dav1d_parse_sequence_header(&seq, data->data, data->sz));
+ dav1d_flush(c);
+ return res;
+}
+
+int main(const int argc, char *const *const argv) {
+ const char *version = dav1d_version();
+ if (strcmp(version, DAV1D_VERSION)) {
+ fprintf(stderr, "Version mismatch (library: %s, executable: %s)\n",
+ version, DAV1D_VERSION);
+ return EXIT_FAILURE;
+ }
+
+ CLISettings cli_settings;
+ Dav1dSettings lib_settings;
+ DemuxerContext *in;
+ Dav1dContext *c;
+ Dav1dData data;
+ unsigned total, i_fps[2], i_timebase[2];
+ double timebase, spf, fps;
+ uint64_t pts;
+
+ xor128_srand(get_seed());
+ parse(argc, argv, &cli_settings, &lib_settings);
+
+ if (input_open(&in, "ivf", cli_settings.inputfile,
+ i_fps, &total, i_timebase) < 0 ||
+ !i_timebase[0] || !i_timebase[1] || !i_fps[0] || !i_fps[1])
+ {
+ return EXIT_SUCCESS;
+ }
+ if (dav1d_open(&c, &lib_settings))
+ return EXIT_FAILURE;
+
+ timebase = (double)i_timebase[1] / i_timebase[0];
+ spf = (double)i_fps[1] / i_fps[0];
+ fps = (double)i_fps[0] / i_fps[1];
+ if (fps < 1) goto end;
+
+#define FRAME_OFFSET_TO_PTS(foff) \
+ (uint64_t)llround(((foff) * spf) * 1000000000.0)
+#define TS_TO_PTS(ts) \
+ (uint64_t)llround(((ts) * timebase) * 1000000000.0)
+
+ // seek at random pts
+ for (int i = 0; i < NUM_RAND_SEEK; i++) {
+ pts = FRAME_OFFSET_TO_PTS(xor128_rand() % total);
+ if (seek(in, c, pts, &data)) continue;
+ if (decode_rand(in, c, &data, fps)) goto end;
+ }
+ pts = TS_TO_PTS(data.m.timestamp);
+
+ // seek left / right randomly with random intervals within 1s
+ for (int i = 0, tries = 0;
+ i - tries < NUM_REL_SEEK && tries < NUM_REL_SEEK / 2;
+ i++)
+ {
+ const int sign = xor128_rand() & 1 ? -1 : +1;
+ const float diff = (xor128_rand() % 100) / 100.f;
+ int64_t new_pts = pts + sign * FRAME_OFFSET_TO_PTS(diff * fps);
+ const int64_t new_ts = llround(new_pts / (timebase * 1000000000.0));
+ new_pts = TS_TO_PTS(new_ts);
+ if (new_pts < 0 || (uint64_t)new_pts >= FRAME_OFFSET_TO_PTS(total)) {
+ if (seek(in, c, FRAME_OFFSET_TO_PTS(total / 2), &data)) break;
+ pts = TS_TO_PTS(data.m.timestamp);
+ tries++;
+ continue;
+ }
+ if (seek(in, c, new_pts, &data))
+ if (seek(in, c, 0, &data)) goto end;
+ if (decode_rand(in, c, &data, fps)) goto end;
+ pts = TS_TO_PTS(data.m.timestamp);
+ }
+
+ unsigned shift = 0;
+ do {
+ shift += 5;
+ if (shift > total)
+ shift = total;
+ } while (seek(in, c, FRAME_OFFSET_TO_PTS(total - shift), &data));
+
+ // simulate seeking after the end of the file
+ for (int i = 0; i < NUM_END_SEEK; i++) {
+ if (seek(in, c, FRAME_OFFSET_TO_PTS(total - shift), &data)) goto end;
+ if (decode_all(in, c, &data)) goto end;
+ int num_flush = 1 + 64 + xor128_rand() % 64;
+ while (num_flush--) dav1d_flush(c);
+ }
+
+end:
+ input_close(in);
+ dav1d_close(&c);
+ return EXIT_SUCCESS;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 11:07:32 +0000