int console_write_char(char new_char){
current_console->input_buffer[current_console->end_buffer++] = new_char;
current_console->screen[current_console->pointer] = new_char;
update_video(current_console->pointer, 1);
current_console->pointer += 2;
}
bool8 S9xDeinitUpdate(int Width, int Height)
{
update_video(Width, Height);
return (TRUE);
}
void write_video(struct MPContext *mpctx, double endpts)
{
struct MPOpts *opts = mpctx->opts;
struct vo *vo = mpctx->video_out;
if (!mpctx->d_video)
return;
update_fps(mpctx);
// Whether there's still at least 1 video frame that can be shown.
// If false, it means we can reconfig the VO if needed (normally, this
// would disrupt playback, so only do it on !still_playing).
bool still_playing = vo_has_next_frame(vo, true);
// For the last frame case (frame is being displayed).
still_playing |= mpctx->playing_last_frame;
still_playing |= mpctx->last_frame_duration > 0;
double frame_time = 0;
int r = update_video(mpctx, endpts, !still_playing, &frame_time);
MP_TRACE(mpctx, "update_video: %d (still_playing=%d)\n", r, still_playing);
if (r == VD_WAIT) // Demuxer will wake us up for more packets to decode.
return;
if (r < 0) {
MP_FATAL(mpctx, "Could not initialize video chain.\n");
int uninit = INITIALIZED_VCODEC;
if (!opts->force_vo)
uninit |= INITIALIZED_VO;
uninit_player(mpctx, uninit);
if (!mpctx->current_track[STREAM_AUDIO])
mpctx->stop_play = PT_NEXT_ENTRY;
mpctx->error_playing = true;
handle_force_window(mpctx, true);
return; // restart loop
}
if (r == VD_EOF) {
if (!mpctx->playing_last_frame && mpctx->last_frame_duration > 0) {
mpctx->time_frame += mpctx->last_frame_duration;
mpctx->last_frame_duration = 0;
mpctx->playing_last_frame = true;
MP_VERBOSE(mpctx, "showing last frame\n");
}
}
if (r == VD_NEW_FRAME) {
MP_TRACE(mpctx, "frametime=%5.3f\n", frame_time);
if (mpctx->video_status > STATUS_PLAYING)
mpctx->video_status = STATUS_PLAYING;
if (mpctx->video_status >= STATUS_READY) {
mpctx->time_frame += frame_time / opts->playback_speed;
adjust_sync(mpctx, frame_time);
}
} else if (r == VD_EOF && mpctx->playing_last_frame) {
// Let video timing code continue displaying.
mpctx->video_status = STATUS_DRAINING;
MP_VERBOSE(mpctx, "still showing last frame\n");
} else if (r <= 0) {
// EOF or error
mpctx->delay = 0;
mpctx->last_av_difference = 0;
mpctx->video_status = STATUS_EOF;
MP_VERBOSE(mpctx, "video EOF\n");
return;
} else {
if (mpctx->video_status > STATUS_PLAYING)
mpctx->video_status = STATUS_PLAYING;
// Decode more in next iteration.
mpctx->sleeptime = 0;
MP_TRACE(mpctx, "filtering more video\n");
}
// Actual playback starts when both audio and video are ready.
if (mpctx->video_status == STATUS_READY)
return;
if (mpctx->paused && mpctx->video_status >= STATUS_READY)
return;
mpctx->time_frame -= get_relative_time(mpctx);
double audio_pts = playing_audio_pts(mpctx);
if (!mpctx->sync_audio_to_video || mpctx->video_status < STATUS_READY) {
mpctx->time_frame = 0;
} else if (mpctx->audio_status == STATUS_PLAYING &&
mpctx->video_status == STATUS_PLAYING)
{
double buffered_audio = ao_get_delay(mpctx->ao);
MP_TRACE(mpctx, "audio delay=%f\n", buffered_audio);
if (opts->autosync) {
/* Smooth reported playback position from AO by averaging
* it with the value expected based on previus value and
* time elapsed since then. May help smooth video timing
* with audio output that have inaccurate position reporting.
* This is badly implemented; the behavior of the smoothing
* now undesirably depends on how often this code runs
* (mainly depends on video frame rate). */
float predicted = (mpctx->delay / opts->playback_speed +
mpctx->time_frame);
float difference = buffered_audio - predicted;
buffered_audio = predicted + difference / opts->autosync;
}
mpctx->time_frame = (buffered_audio -
mpctx->delay / opts->playback_speed);
} else {
/* If we're more than 200 ms behind the right playback
* position, don't try to speed up display of following
* frames to catch up; continue with default speed from
* the current frame instead.
* If untimed is set always output frames immediately
* without sleeping.
*/
if (mpctx->time_frame < -0.2 || opts->untimed || vo->untimed)
mpctx->time_frame = 0;
}
double vsleep = mpctx->time_frame - vo->flip_queue_offset;
if (vsleep > 0.050) {
mpctx->sleeptime = MPMIN(mpctx->sleeptime, vsleep - 0.040);
return;
}
mpctx->sleeptime = 0;
mpctx->playing_last_frame = false;
// last frame case
if (r != VD_NEW_FRAME)
return;
//=================== FLIP PAGE (VIDEO BLT): ======================
mpctx->video_pts = mpctx->video_next_pts;
mpctx->last_vo_pts = mpctx->video_pts;
mpctx->playback_pts = mpctx->video_pts;
update_subtitles(mpctx);
update_osd_msg(mpctx);
MP_STATS(mpctx, "vo draw frame");
vo_new_frame_imminent(vo);
MP_STATS(mpctx, "vo sleep");
mpctx->time_frame -= get_relative_time(mpctx);
mpctx->time_frame -= vo->flip_queue_offset;
if (mpctx->time_frame > 0.001)
mpctx->time_frame = timing_sleep(mpctx, mpctx->time_frame);
mpctx->time_frame += vo->flip_queue_offset;
int64_t t2 = mp_time_us();
/* Playing with playback speed it's possible to get pathological
* cases with mpctx->time_frame negative enough to cause an
* overflow in pts_us calculation, thus the MPMAX. */
double time_frame = MPMAX(mpctx->time_frame, -1);
int64_t pts_us = mpctx->last_time + time_frame * 1e6;
int duration = -1;
double pts2 = vo_get_next_pts(vo, 0); // this is the next frame PTS
if (mpctx->video_pts != MP_NOPTS_VALUE && pts2 == MP_NOPTS_VALUE) {
// Make up a frame duration. Using the frame rate is not a good
// choice, since the frame rate could be unset/broken/random.
float fps = mpctx->d_video->fps;
double frame_duration = fps > 0 ? 1.0 / fps : 0;
pts2 = mpctx->video_pts + MPCLAMP(frame_duration, 0.0, 5.0);
}
if (pts2 != MP_NOPTS_VALUE) {
// expected A/V sync correction is ignored
double diff = (pts2 - mpctx->video_pts);
diff /= opts->playback_speed;
if (mpctx->time_frame < 0)
diff += mpctx->time_frame;
if (diff < 0)
diff = 0;
if (diff > 10)
diff = 10;
duration = diff * 1e6;
mpctx->last_frame_duration = diff;
}
if (mpctx->video_status != STATUS_PLAYING)
duration = -1;
MP_STATS(mpctx, "start flip");
vo_flip_page(vo, pts_us | 1, duration);
MP_STATS(mpctx, "end flip");
if (audio_pts != MP_NOPTS_VALUE)
MP_STATS(mpctx, "value %f ptsdiff", mpctx->video_pts - audio_pts);
mpctx->last_vo_flip_duration = (mp_time_us() - t2) * 0.000001;
if (vo->driver->flip_page_timed) {
// No need to adjust sync based on flip speed
mpctx->last_vo_flip_duration = 0;
// For print_status - VO call finishing early is OK for sync
mpctx->time_frame -= get_relative_time(mpctx);
}
mpctx->shown_vframes++;
if (mpctx->video_status < STATUS_PLAYING)
mpctx->video_status = STATUS_READY;
update_avsync(mpctx);
screenshot_flip(mpctx);
mp_notify(mpctx, MPV_EVENT_TICK, NULL);
if (!mpctx->sync_audio_to_video)
mpctx->video_status = STATUS_EOF;
}
