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kayasrc: for Unix time metadata, sync against system clock every frame due to drift

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Otherwise, over time, the framegrabber clock drifts from the system clock.
This commit is contained in:
Joshua M. Doe 2021-08-02 10:54:15 -04:00
parent 7f3c5814b0
commit 63295f7290
1 changed files with 5 additions and 5 deletions
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6
sys/kaya/gstkayasrc.c
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@ -799,11 +799,11 @@ gst_kayasrc_stream_buffer_callback (STREAM_BUFFER_HANDLE buffer_handle,
GST_BUFFER_OFFSET (buf) = src->frame_count; GST_BUFFER_OFFSET (buf) = src->frame_count;
src->frame_count++; src->frame_count++;
if (src->kaya_base == GST_CLOCK_TIME_NONE) { //if (src->kaya_base == GST_CLOCK_TIME_NONE) {
/* assume delay between these two calls is negligible */ // assume delay between these two calls is negligible
src->kaya_base = KYFG_GetGrabberValueInt (src->cam_handle, "Timestamp"); src->kaya_base = KYFG_GetGrabberValueInt (src->cam_handle, "Timestamp");
src->unix_base = g_get_real_time () * 1000; src->unix_base = g_get_real_time () * 1000;
} //}
#if GST_CHECK_VERSION(1,14,0) #if GST_CHECK_VERSION(1,14,0)
{ {
GstClockTime unix_ts = src->unix_base + (timestamp - src->kaya_base); GstClockTime unix_ts = src->unix_base + (timestamp - src->kaya_base);