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webmdashenc: Fix UTCTiming Element

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Remove the direct profile from UTCTiming element. Per DASH spec,
direct profile value should be the time at which the request was
made to the server and not the time at which the manifest was
written. So ffmpeg cannot write this value. This patch removes
the direct profile and write the UTCTiming element with the http
profile only if a URL is passed as a parameter. Update the fate
test to reflect this change.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Vignesh Venkatasubramanian 2015-04-27 16:26:34 -07:00 committed by Michael Niedermayer
parent 464c49155c
commit b410c69fb6
2 changed files with 5 additions and 8 deletions
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8
libavformat/webmdashenc.c
View File

@ -119,11 +119,11 @@ static void write_header(AVFormatContext *s)
avio_printf(s->pb, " timeShiftBufferDepth=\"PT%gS\"\n", w->time_shift_buffer_depth);
avio_printf(s->pb, " minimumUpdatePeriod=\"PT%dS\"", w->minimum_update_period);
avio_printf(s->pb, ">\n");
if (w->utc_timing_url) {
avio_printf(s->pb, "<UTCTiming\n");
avio_printf(s->pb, " schemeIdUri=\"%s\"\n",
w->utc_timing_url ? "urn:mpeg:dash:utc:http-iso:2014" : "urn:mpeg:dash:utc:direct:2012");
avio_printf(s->pb, " value=\"%s\"/>\n",
w->utc_timing_url ? w->utc_timing_url : gmt_iso);
avio_printf(s->pb, " schemeIdUri=\"urn:mpeg:dash:utc:http-iso:2014\"\n");
avio_printf(s->pb, " value=\"%s\"/>\n", w->utc_timing_url);
}
}
}

3
tests/ref/fate/webm-dash-manifest-live
View File

@ -9,9 +9,6 @@
availabilityStartTime=""
timeShiftBufferDepth="PT7200S"
minimumUpdatePeriod="PT60S">
<UTCTiming
schemeIdUri="urn:mpeg:dash:utc:direct:2012"
value=""/>
<Period id="0" start="PT0S" >
<AdaptationSet id="0" mimeType="video/webm" codecs="vp9" bitstreamSwitching="true" subsegmentAlignment="true" subsegmentStartsWithSAP="1">
<ContentComponent id="1" type="video"/>