#include "x264_speed_control.h"
-#include "flags.h"
-
-#include <time.h>
-
+#include <dlfcn.h>
+#include <math.h>
+#include <stdio.h>
+#include <x264.h>
#include <algorithm>
#include <chrono>
+#include <cmath>
+#include <ratio>
+#include <type_traits>
+
+#include "flags.h"
+#include "metrics.h"
using namespace std;
using namespace std::chrono;
+#define SC_PRESETS 25
+
X264SpeedControl::X264SpeedControl(x264_t *x264, float f_speed, int i_buffer_size, float f_buffer_init)
- : x264(x264), f_speed(f_speed)
+ : dyn(load_x264_for_bit_depth(global_flags.x264_bit_depth)),
+ x264(x264), f_speed(f_speed)
{
x264_param_t param;
- x264_encoder_parameters(x264, ¶m);
+ dyn.x264_encoder_parameters(x264, ¶m);
float fps = (float)param.i_fps_num / param.i_fps_den;
uspf = 1e6 / fps;
stat.max_buffer = 0;
stat.avg_preset = 0.0;
stat.den = 0;
+
+ metric_x264_speedcontrol_buffer_available_seconds = buffer_fill * 1e-6;
+ metric_x264_speedcontrol_buffer_size_seconds = buffer_size * 1e-6;
+ metric_x264_speedcontrol_preset_used_frames.init_uniform(SC_PRESETS);
+ global_metrics.add("x264_speedcontrol_preset_used_frames", &metric_x264_speedcontrol_preset_used_frames);
+ global_metrics.add("x264_speedcontrol_buffer_available_seconds", &metric_x264_speedcontrol_buffer_available_seconds, Metrics::TYPE_GAUGE);
+ global_metrics.add("x264_speedcontrol_buffer_size_seconds", &metric_x264_speedcontrol_buffer_size_seconds, Metrics::TYPE_GAUGE);
+ global_metrics.add("x264_speedcontrol_idle_frames", &metric_x264_speedcontrol_idle_frames);
+ global_metrics.add("x264_speedcontrol_late_frames", &metric_x264_speedcontrol_late_frames);
}
X264SpeedControl::~X264SpeedControl()
(float)stat.min_buffer / buffer_size,
(float)stat.max_buffer / buffer_size );
// x264_log( x264, X264_LOG_INFO, "speedcontrol: avg cplx=%.5f\n", cplx_num / cplx_den );
+ if (dyn.handle) {
+ dlclose(dyn.handle);
+ }
}
typedef struct
// all presets are benchmarked with --weightp 1 --mbtree --rc-lookahead 20
// on top of the given settings (equivalent settings to the "faster" preset).
// Timings and SSIM measurements were done on a quadcore Haswell i5 3.2 GHz
-// on the first 1000 frames of "Tears of Steel" in 1080p.
+// on the first 1000 frames of "Elephants Dream" in 1080p.
+// See experiments/measure-x264.pl for a way to reproduce.
//
// Note that the two first and the two last are also used for extrapolation
// should the desired time be outside the range. Thus, it is disadvantageous if
// they are chosen so that the timings are too close to each other.
-#define SC_PRESETS 26
static const sc_preset_t presets[SC_PRESETS] = {
#define I4 X264_ANALYSE_I4x4
#define I8 X264_ANALYSE_I8x8
#define P4 X264_ANALYSE_PSUB8x8
#define P8 X264_ANALYSE_PSUB16x16
#define B8 X264_ANALYSE_BSUB16x16
- // Preset 0: 14.179db, --preset superfast --b-adapt 0 --bframes 0
+ // Preset 0: 16.583db, --preset superfast --b-adapt 0 --bframes 0
{ .time= 1.000, .subme=1, .me=X264_ME_DIA, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4, .badapt=0, .bframes=0, .direct=0, .merange=16 },
- // Preset 1: 14.459db, --preset superfast
- { .time= 1.283, .subme=1, .me=X264_ME_DIA, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 1: 17.386db, --preset superfast
+ { .time= 1.288, .subme=1, .me=X264_ME_DIA, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 2: 14.761db, --preset superfast --subme 2
- { .time= 1.603, .subme=2, .me=X264_ME_DIA, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 2: 17.919db, --preset superfast --subme 2
+ { .time= 2.231, .subme=2, .me=X264_ME_DIA, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 3: 15.543db, --preset veryfast
- { .time= 1.843, .subme=2, .me=X264_ME_HEX, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 3: 18.051db, --preset veryfast
+ { .time= 2.403, .subme=2, .me=X264_ME_HEX, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 4: 15.716db, --preset veryfast --subme 3
- { .time= 2.452, .subme=3, .me=X264_ME_HEX, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 4: 18.422db, --preset veryfast --subme 3
+ { .time= 2.636, .subme=3, .me=X264_ME_HEX, .refs=1, .mix=0, .trellis=0, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 5: 15.786db, --preset veryfast --subme 3 --ref 2
- { .time= 2.733, .subme=3, .me=X264_ME_HEX, .refs=2, .mix=0, .trellis=0, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 5: 18.514db, --preset veryfast --subme 3 --ref 2
+ { .time= 2.844, .subme=3, .me=X264_ME_HEX, .refs=2, .mix=0, .trellis=0, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 6: 15.813db, --preset veryfast --subme 4 --ref 2
- { .time= 3.085, .subme=4, .me=X264_ME_HEX, .refs=2, .mix=0, .trellis=0, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 6: 18.564db, --preset veryfast --subme 4 --ref 2
+ { .time= 3.366, .subme=4, .me=X264_ME_HEX, .refs=2, .mix=0, .trellis=0, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 7: 15.849db, --preset faster
- { .time= 3.101, .subme=4, .me=X264_ME_HEX, .refs=2, .mix=0, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 7: 18.411db, --preset faster
+ { .time= 3.450, .subme=4, .me=X264_ME_HEX, .refs=2, .mix=0, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 8: 15.857db, --preset faster --mixed-refs
- { .time= 3.284, .subme=4, .me=X264_ME_HEX, .refs=2, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 8: 18.429db, --preset faster --mixed-refs
+ { .time= 3.701, .subme=4, .me=X264_ME_HEX, .refs=2, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 9: 15.869db, --preset faster --mixed-refs --subme 5
- { .time= 3.587, .subme=5, .me=X264_ME_HEX, .refs=2, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 9: 18.454db, --preset faster --mixed-refs --subme 5
+ { .time= 4.297, .subme=5, .me=X264_ME_HEX, .refs=2, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 10: 16.051db, --preset fast
- { .time= 3.947, .subme=6, .me=X264_ME_HEX, .refs=2, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 10: 18.528db, --preset fast
+ { .time= 5.181, .subme=6, .me=X264_ME_HEX, .refs=2, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 11: 16.356db, --preset fast --subme 7
- { .time= 4.041, .subme=7, .me=X264_ME_HEX, .refs=2, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 11: 18.762db, --preset fast --subme 7
+ { .time= 5.357, .subme=7, .me=X264_ME_HEX, .refs=2, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 12: 16.418db, --preset fast --subme 7 --ref 3
- { .time= 4.406, .subme=7, .me=X264_ME_HEX, .refs=3, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 12: 18.819db, --preset medium
+ { .time= 6.040, .subme=7, .me=X264_ME_HEX, .refs=3, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 13: 16.460db, --preset medium
- { .time= 4.707, .subme=7, .me=X264_ME_HEX, .refs=3, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 13: 18.889db, --preset medium --subme 8
+ { .time= 7.408, .subme=8, .me=X264_ME_HEX, .refs=3, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 14: 16.517db, --preset medium --subme 8
- { .time= 5.133, .subme=8, .me=X264_ME_HEX, .refs=3, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 14: 19.127db, --preset medium --subme 8 --trellis 2
+ { .time=10.124, .subme=8, .me=X264_ME_HEX, .refs=3, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
- // Preset 15: 16.523db, --preset medium --subme 8 --me umh
- { .time= 6.050, .subme=8, .me=X264_ME_UMH, .refs=3, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=1, .merange=16 },
+ // Preset 15: 19.118db, --preset medium --subme 8 --trellis 2 --direct auto
+ { .time=10.144, .subme=8, .me=X264_ME_HEX, .refs=3, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=3, .merange=16 },
- // Preset 16: 16.543db, --preset medium --subme 8 --me umh --direct auto --b-adapt 2
- { .time= 6.849, .subme=8, .me=X264_ME_UMH, .refs=3, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
+ // Preset 16: 19.172db, --preset slow
+ { .time=11.142, .subme=8, .me=X264_ME_HEX, .refs=5, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=1, .bframes=3, .direct=3, .merange=16 },
- // Preset 17: 16.613db, --preset slow
- { .time= 8.042, .subme=8, .me=X264_ME_UMH, .refs=5, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
+ // Preset 17: 19.309db, --preset slow --b-adapt 2 --subme 9
+ { .time=11.168, .subme=9, .me=X264_ME_HEX, .refs=5, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
- // Preset 18: 16.641db, --preset slow --subme 9
- { .time= 8.972, .subme=9, .me=X264_ME_UMH, .refs=5, .mix=1, .trellis=1, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
+ // Preset 18: 19.316db, --preset slow --b-adapt 2 --subme 9 --me umh
+ { .time=12.942, .subme=9, .me=X264_ME_UMH, .refs=5, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
- // Preset 19: 16.895db, --preset slow --subme 9 --trellis 2
- { .time=10.073, .subme=9, .me=X264_ME_UMH, .refs=5, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
+ // Preset 19: 19.342db, --preset slow --b-adapt 2 --subme 9 --me umh --ref 6
+ { .time=14.302, .subme=9, .me=X264_ME_UMH, .refs=6, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
- // Preset 20: 16.918db, --preset slow --subme 9 --trellis 2 --ref 6
- { .time=11.147, .subme=9, .me=X264_ME_UMH, .refs=6, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
+ // Preset 20: 19.365db, --preset slow --b-adapt 2 --subme 9 --me umh --ref 7
+ { .time=15.554, .subme=9, .me=X264_ME_UMH, .refs=7, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
- // Preset 21: 16.934db, --preset slow --subme 9 --trellis 2 --ref 7
- { .time=12.267, .subme=9, .me=X264_ME_UMH, .refs=7, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8, .badapt=2, .bframes=3, .direct=3, .merange=16 },
+ // Preset 21: 19.396db, --preset slower
+ { .time=17.551, .subme=9, .me=X264_ME_UMH, .refs=8, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8|P4, .badapt=2, .bframes=3, .direct=3, .merange=16 },
- // Preset 22: 16.948db, --preset slower
- { .time=13.829, .subme=9, .me=X264_ME_UMH, .refs=8, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8|P4, .badapt=2, .bframes=3, .direct=3, .merange=16 },
+ // Preset 22: 19.491db, --preset slower --subme 10
+ { .time=21.321, .subme=10, .me=X264_ME_UMH, .refs=8, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8|P4, .badapt=2, .bframes=3, .direct=3, .merange=16 },
- // Preset 23: 17.058db, --preset slower --subme 10
- { .time=14.831, .subme=10, .me=X264_ME_UMH, .refs=8, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8|P4, .badapt=2, .bframes=3, .direct=3, .merange=16 },
+ // Preset 23: 19.764db, --preset slower --subme 10 --bframes 8
+ { .time=23.200, .subme=10, .me=X264_ME_UMH, .refs=8, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8|P4, .badapt=2, .bframes=8, .direct=3, .merange=16 },
- // Preset 24: 17.268db, --preset slower --subme 10 --bframes 8
- { .time=18.705, .subme=10, .me=X264_ME_UMH, .refs=8, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8|P4, .badapt=2, .bframes=8, .direct=3, .merange=16 },
-
- // Preset 25: 17.297db, --preset veryslow
- { .time=31.419, .subme=10, .me=X264_ME_UMH, .refs=16, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8|P4, .badapt=2, .bframes=8, .direct=3, .merange=24 },
+ // Preset 24: 19.807db, --preset veryslow
+ { .time=36.922, .subme=10, .me=X264_ME_UMH, .refs=16, .mix=1, .trellis=2, .partitions=I8|I4|P8|B8|P4, .badapt=2, .bframes=8, .direct=3, .merange=24 },
#undef I4
#undef I8
#undef P4
set_buffer_size(new_buffer_size);
}
buffer_fill = buffer_size * new_buffer_fill;
+ metric_x264_speedcontrol_buffer_available_seconds = buffer_fill * 1e-6;
steady_clock::time_point t;
first = false;
}
buffer_fill = buffer_size;
+ metric_x264_speedcontrol_buffer_available_seconds = buffer_fill * 1e-6;
+ ++metric_x264_speedcontrol_idle_frames;
} else if (buffer_fill <= 0) { // oops, we're late
// fprintf(stderr, "speedcontrol underflow (%.6f sec)\n", buffer_fill/1e6);
+ ++metric_x264_speedcontrol_late_frames;
}
{
buffer_size = new_buffer_size * uspf;
cplx_decay = 1 - 1./new_buffer_size;
compensation_period = buffer_size/4;
+ metric_x264_speedcontrol_buffer_size_seconds = buffer_size * 1e-6;
}
int X264SpeedControl::dither_preset(float f)
const sc_preset_t *s = &presets[new_preset];
x264_param_t p;
- x264_encoder_parameters(x264, &p);
+ dyn.x264_encoder_parameters(x264, &p);
p.i_frame_reference = s->refs;
p.i_bframe_adaptive = s->badapt;
if (override_func) {
override_func(&p);
}
- x264_encoder_reconfig(x264, &p);
+ dyn.x264_encoder_reconfig(x264, &p);
preset = new_preset;
+
+ metric_x264_speedcontrol_preset_used_frames.count_event(new_preset);
}
projects / nageru / blobdiff