#include "mux.h"
#include "timebase.h"
#include "x264_encoder.h"
+#include "x264_speed_control.h"
extern "C" {
#include <libavformat/avformat.h>
param.i_timebase_num = 1;
param.i_timebase_den = TIMEBASE;
param.i_keyint_max = 50; // About one second.
+ if (global_flags.x264_speedcontrol) {
+ param.i_frame_reference = 16; // Because speedcontrol is never allowed to change this above what we set at start.
+ }
// NOTE: These should be in sync with the ones in h264encode.cpp (sbs_rbsp()).
param.vui.i_vidformat = 5; // Unspecified.
param.vui.i_transfer = 2; // Unspecified (since we use sRGB).
param.vui.i_colmatrix = 6; // BT.601/SMPTE 170M.
- // 4.5 Mbit/sec, CBR.
+
param.rc.i_rc_method = X264_RC_ABR;
- param.rc.i_bitrate = 4500;
+ param.rc.i_bitrate = global_flags.x264_bitrate;
+ if (global_flags.x264_vbv_buffer_size < 0) {
+ param.rc.i_vbv_buffer_size = param.rc.i_bitrate; // One-second VBV.
+ } else {
+ param.rc.i_vbv_buffer_size = global_flags.x264_vbv_buffer_size;
+ }
+ if (global_flags.x264_vbv_max_bitrate < 0) {
+ param.rc.i_vbv_max_bitrate = param.rc.i_bitrate; // CBR.
+ } else {
+ param.rc.i_vbv_max_bitrate = global_flags.x264_vbv_max_bitrate;
+ }
- // One-second VBV.
- param.rc.i_vbv_max_bitrate = 4500;
- param.rc.i_vbv_buffer_size = 4500;
+ // Occasionally players have problem with extremely low quantizers;
+ // be on the safe side. Shouldn't affect quality in any meaningful way.
+ param.rc.i_qp_min = 5;
// TODO: more flags here, via x264_param_parse().
exit(1);
}
+ if (global_flags.x264_speedcontrol) {
+ speed_control.reset(new X264SpeedControl(x264, /*f_speed=*/1.0f, X264_QUEUE_LENGTH, /*f_buffer_init=*/1.0f));
+ }
+
if (wants_global_headers) {
x264_nal_t *nal;
int num_nal;
pic.img.i_stride[1] = WIDTH / 2 * sizeof(uint16_t);
pic.opaque = reinterpret_cast<void *>(intptr_t(qf.duration));
+ if (speed_control) {
+ speed_control->before_frame(float(free_frames.size()) / X264_QUEUE_LENGTH, X264_QUEUE_LENGTH, 1e6 * qf.duration / TIMEBASE);
+ }
x264_encoder_encode(x264, &nal, &num_nal, &pic, &pic);
+ if (speed_control) {
+ speed_control->after_frame();
+ }
} else {
+ if (speed_control) {
+ speed_control->before_frame(float(free_frames.size()) / X264_QUEUE_LENGTH, X264_QUEUE_LENGTH, 1e6 * qf.duration / TIMEBASE);
+ }
x264_encoder_encode(x264, &nal, &num_nal, nullptr, &pic);
+ if (speed_control) {
+ speed_control->after_frame();
+ }
}
// We really need one AVPacket for the entire frame, it seems,