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aom: av1enc: Ensure that input pts is strictly increasing

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2743>
This commit is contained in:
Yatin Mann 2022-07-11 09:27:41 +05:30 committed by GStreamer Marge Bot
parent cfcd2aac67
commit cbc7334d93
2 changed files with 58 additions and 5 deletions
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60
subprojects/gst-plugins-bad/ext/aom/gstav1enc.c
View file

@ -816,6 +816,8 @@ gst_av1_enc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame)
GstFlowReturn ret = GST_FLOW_OK;
GstVideoFrame vframe;
aom_codec_pts_t scaled_pts;
GstClockTime pts_rt;
unsigned long duration;
if (!aom_img_alloc (&raw, av1enc->format, av1enc->aom_cfg.g_w,
av1enc->aom_cfg.g_h, 1)) {
@ -834,19 +836,54 @@ gst_av1_enc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame)
}
av1enc->keyframe_dist++;
// aom_codec_encode requires pts to be strictly increasing
pts_rt =
gst_segment_to_running_time (&encoder->input_segment,
GST_FORMAT_TIME, frame->pts);
if (GST_CLOCK_TIME_IS_VALID (av1enc->next_pts)
&& pts_rt <= av1enc->next_pts) {
GST_WARNING_OBJECT (av1enc,
"decreasing pts %" GST_TIME_FORMAT " previous buffer was %"
GST_TIME_FORMAT " enforce increasing pts", GST_TIME_ARGS (pts_rt),
GST_TIME_ARGS (av1enc->next_pts));
pts_rt = av1enc->next_pts + 1;
}
av1enc->next_pts = pts_rt;
// Convert the pts from nanoseconds to timebase units
scaled_pts =
gst_util_uint64_scale_int (frame->pts,
gst_util_uint64_scale_int (pts_rt,
av1enc->aom_cfg.g_timebase.den,
av1enc->aom_cfg.g_timebase.num * (GstClockTime) GST_SECOND);
g_mutex_lock (&av1enc->encoder_lock);
if (aom_codec_encode (&av1enc->encoder, &raw, scaled_pts, 1, flags)
if (frame->duration != GST_CLOCK_TIME_NONE) {
duration =
gst_util_uint64_scale (frame->duration, av1enc->aom_cfg.g_timebase.den,
av1enc->aom_cfg.g_timebase.num * (GstClockTime) GST_SECOND);
if (duration > 0) {
av1enc->next_pts += frame->duration;
} else {
/* We force the path ignoring the duration if we end up with a zero
* value for duration after scaling (e.g. duration value too small) */
GST_WARNING_OBJECT (av1enc,
"Ignoring too small frame duration %" GST_TIME_FORMAT,
GST_TIME_ARGS (frame->duration));
duration = 1;
av1enc->next_pts += 1;
}
} else {
duration = 1;
av1enc->next_pts += 1;
}
if (aom_codec_encode (&av1enc->encoder, &raw, scaled_pts, duration, flags)
!= AOM_CODEC_OK) {
gst_av1_codec_error (&av1enc->encoder, "Failed to encode frame");
ret = GST_FLOW_ERROR;
}
g_mutex_unlock (&av1enc->encoder_lock);
aom_img_free (&raw);
gst_video_codec_frame_unref (frame);
@ -867,11 +904,21 @@ gst_av1_enc_finish (GstVideoEncoder * encoder)
{
GstFlowReturn ret = GST_FLOW_OK;
GstAV1Enc *av1enc = GST_AV1_ENC_CAST (encoder);
aom_codec_pts_t scaled_pts;
GstClockTime pts = 0;
while (ret == GST_FLOW_OK) {
GST_DEBUG_OBJECT (encoder, "Calling finish");
g_mutex_lock (&av1enc->encoder_lock);
if (aom_codec_encode (&av1enc->encoder, NULL, 0, 1, 0)
if (GST_CLOCK_TIME_IS_VALID (av1enc->next_pts))
pts = av1enc->next_pts;
scaled_pts =
gst_util_uint64_scale (pts,
av1enc->aom_cfg.g_timebase.den,
av1enc->aom_cfg.g_timebase.num * (GstClockTime) GST_SECOND);
if (aom_codec_encode (&av1enc->encoder, NULL, scaled_pts, 1, 0)
!= AOM_CODEC_OK) {
gst_av1_codec_error (&av1enc->encoder, "Failed to encode frame");
ret = GST_FLOW_ERROR;
@ -896,6 +943,9 @@ gst_av1_enc_destroy_encoder (GstAV1Enc * av1enc)
aom_codec_destroy (&av1enc->encoder);
av1enc->encoder_inited = FALSE;
}
av1enc->next_pts = GST_CLOCK_TIME_NONE;
g_mutex_unlock (&av1enc->encoder_lock);
}

3
subprojects/gst-plugins-bad/ext/aom/gstav1enc.h
View file

@ -123,6 +123,9 @@ struct _GstAV1Enc
aom_img_fmt_t format;
GMutex encoder_lock;
/* next pts, in running time */
GstClockTime next_pts;
gboolean target_bitrate_set;
};