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encodebin: Don't try rate adjustment before the first buffer

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With both audiorate and videorate, it seems more sensible to apply rate
adjustments after the first buffer appears. For example, with v4l2src,
there is often a small delay before the first video buffer turns up, and
this can cause a stuttery start because of videorate trying to ensure a
perfect stream.
This commit is contained in:
Arun Raghavan 2017-06-08 12:35:23 +05:30
parent 08525d825d
commit 25e0b77bbe
1 changed files with 3 additions and 0 deletions
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3
gst/encoding/gstencodebin.c
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@ -1504,6 +1504,7 @@ _create_stream_group (GstEncodeBin * ebin, GstEncodingProfile * sprof,
missing_element_name = "videorate"; missing_element_name = "videorate";
goto missing_element; goto missing_element;
} }
g_object_set (vrate, "skip-to-first", TRUE, NULL);
gst_bin_add ((GstBin *) ebin, vrate); gst_bin_add ((GstBin *) ebin, vrate);
tosync = g_list_prepend (tosync, vrate); tosync = g_list_prepend (tosync, vrate);
@ -1535,6 +1536,8 @@ _create_stream_group (GstEncodeBin * ebin, GstEncodingProfile * sprof,
goto missing_element; goto missing_element;
} }
g_object_set (arate, "tolerance", (guint64) ebin->tolerance, NULL); g_object_set (arate, "tolerance", (guint64) ebin->tolerance, NULL);
g_object_set (arate, "skip-to-first", TRUE, NULL);
aconv = gst_element_factory_make ("audioconvert", NULL); aconv = gst_element_factory_make ("audioconvert", NULL);
aconv2 = gst_element_factory_make ("audioconvert", NULL); aconv2 = gst_element_factory_make ("audioconvert", NULL);
ares = gst_element_factory_make ("audioresample", NULL); ares = gst_element_factory_make ("audioresample", NULL);