static void
gst_x265_enc_set_latency (GstX265Enc * encoder)
{
GstVideoInfo *info = &encoder->input_state->info;
if (info->fps_n) {
GstClockTime latency;
gint max_delayed_frames;
// FIXME get a real value from the encoder, this is currently not exposed
max_delayed_frames = 5;
latency = gst_util_uint64_scale_ceil (GST_SECOND * info->fps_d,
max_delayed_frames, info->fps_n);
GST_INFO_OBJECT (encoder,
"Updating latency to %" GST_TIME_FORMAT " (%d frames)",
GST_TIME_ARGS (latency), max_delayed_frames);
gst_video_encoder_set_latency (GST_VIDEO_ENCODER (encoder), latency,
latency);
} else {
/* We can't do live as we don't know our latency */
gst_video_encoder_set_latency (GST_VIDEO_ENCODER (encoder),
0, GST_CLOCK_TIME_NONE);
}
}
static void
gst_x265_enc_set_latency (GstX265Enc * encoder)
{
GstVideoInfo *info = &encoder->input_state->info;
gint max_delayed_frames;
GstClockTime latency;
/* FIXME get a real value from the encoder, this is currently not exposed */
if (encoder->tune > 0 && encoder->tune <= G_N_ELEMENTS (x265_tune_names) &&
strcmp (x265_tune_names[encoder->tune + 1], "zerolatency") == 0)
max_delayed_frames = 0;
else
max_delayed_frames = 5;
if (info->fps_n) {
latency = gst_util_uint64_scale_ceil (GST_SECOND * info->fps_d,
max_delayed_frames, info->fps_n);
} else {
/* FIXME: Assume 25fps. This is better than reporting no latency at
* all and then later failing in live pipelines
*/
latency = gst_util_uint64_scale_ceil (GST_SECOND * 1,
max_delayed_frames, 25);
}
GST_INFO_OBJECT (encoder,
"Updating latency to %" GST_TIME_FORMAT " (%d frames)",
GST_TIME_ARGS (latency), max_delayed_frames);
gst_video_encoder_set_latency (GST_VIDEO_ENCODER (encoder), latency, latency);
}
static void
gst_av1_enc_set_latency (GstAV1Enc * av1enc)
{
GstClockTime latency;
gint fps_n, fps_d;
if (av1enc->input_state->info.fps_n && av1enc->input_state->info.fps_d) {
fps_n = av1enc->input_state->info.fps_n;
fps_d = av1enc->input_state->info.fps_d;
} else {
fps_n = 25;
fps_d = 1;
}
latency =
gst_util_uint64_scale (av1enc->aom_cfg.g_lag_in_frames * GST_SECOND,
fps_d, fps_n);
gst_video_encoder_set_latency (GST_VIDEO_ENCODER (av1enc), latency, latency);
GST_DEBUG_OBJECT (av1enc, "Latency set to %" GST_TIME_FORMAT
" = %d frames at %d/%d fps ", GST_TIME_ARGS (latency),
av1enc->aom_cfg.g_lag_in_frames, fps_n, fps_d);
}