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webmdashenc: parameter'ize minimumUpdatePeriod

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Some players do not support setting minimumUpdatePeriod to zero.
This patch adds a new parameter that will let the users set any
value to this field. Also updates the test and the documentation.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Vignesh Venkatasubramanian 2015-04-21 17:35:29 -07:00 committed by Michael Niedermayer
parent ba625dd8a1
commit f82ce6aa88
4 changed files with 9 additions and 3 deletions
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4
doc/muxers.texi
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@ -1253,6 +1253,10 @@ Smallest time (in seconds) shifting buffer for which any Representation is
guaranteed to be available. This will go in the @samp{timeShiftBufferDepth}
attribute of the @samp{MPD} element. Default: 60.
@item minimum_update_period
Minimum update period (in seconds) of the manifest. This will go in the
@samp{minimumUpdatePeriod} attribute of the @samp{MPD} element. Default: 0.
@end table
@subsection Example

4
libavformat/webmdashenc.c
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@ -56,6 +56,7 @@ typedef struct WebMDashMuxContext {
int chunk_duration;
char *utc_timing_url;
double time_shift_buffer_depth;
int minimum_update_period;
int debug_mode;
} WebMDashMuxContext;
@ -116,7 +117,7 @@ static void write_header(AVFormatContext *s)
}
avio_printf(s->pb, " availabilityStartTime=\"%s\"\n", gmt_iso);
avio_printf(s->pb, " timeShiftBufferDepth=\"PT%gS\"\n", w->time_shift_buffer_depth);
avio_printf(s->pb, " minimumUpdatePeriod=\"0\"");
avio_printf(s->pb, " minimumUpdatePeriod=\"PT%dS\"", w->minimum_update_period);
avio_printf(s->pb, ">\n");
avio_printf(s->pb, "<UTCTiming\n");
avio_printf(s->pb, " schemeIdUri=\"%s\"\n",
@ -517,6 +518,7 @@ static const AVOption options[] = {
{ "chunk_duration_ms", "duration of each chunk (in milliseconds)", OFFSET(chunk_duration), AV_OPT_TYPE_INT, {.i64 = 1000}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ "utc_timing_url", "URL of the page that will return the UTC timestamp in ISO format", OFFSET(utc_timing_url), AV_OPT_TYPE_STRING, { 0 }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM },
{ "time_shift_buffer_depth", "Smallest time (in seconds) shifting buffer for which any Representation is guaranteed to be available.", OFFSET(time_shift_buffer_depth), AV_OPT_TYPE_DOUBLE, { .dbl = 60.0 }, 1.0, DBL_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ "minimum_update_period", "Minimum Update Period (in seconds) of the manifest.", OFFSET(minimum_update_period), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ NULL },
};

2
tests/fate/vpx.mak
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@ -44,7 +44,7 @@ FATE_VP8-$(call DEMDEC, WEBM_DASH_MANIFEST, VP8) += fate-webm-dash-manifest-repr
fate-webm-dash-manifest-representations: CMD = run ffmpeg -f webm_dash_manifest -i $(TARGET_SAMPLES)/vp8/dash_video1.webm -f webm_dash_manifest -i $(TARGET_SAMPLES)/vp8/dash_video4.webm -c copy -map 0 -map 1 -f webm_dash_manifest -adaptation_sets "id=0,streams=0,1" -
FATE_VP8-$(call DEMDEC, WEBM_DASH_MANIFEST, VP8) += fate-webm-dash-manifest-live
fate-webm-dash-manifest-live: CMD = run ffmpeg -f webm_dash_manifest -live 1 -i $(TARGET_SAMPLES)/vp8/dash_live_video_360.hdr -f webm_dash_manifest -live 1 -i $(TARGET_SAMPLES)/vp8/dash_live_audio_171.hdr -c copy -map 0 -map 1 -f webm_dash_manifest -live 1 -adaptation_sets "id=0,streams=0 id=1,streams=1" -chunk_start_index 1 -chunk_duration_ms 5000 -time_shift_buffer_depth 7200 -debug_mode 1 -
fate-webm-dash-manifest-live: CMD = run ffmpeg -f webm_dash_manifest -live 1 -i $(TARGET_SAMPLES)/vp8/dash_live_video_360.hdr -f webm_dash_manifest -live 1 -i $(TARGET_SAMPLES)/vp8/dash_live_audio_171.hdr -c copy -map 0 -map 1 -f webm_dash_manifest -live 1 -adaptation_sets "id=0,streams=0 id=1,streams=1" -chunk_start_index 1 -chunk_duration_ms 5000 -time_shift_buffer_depth 7200 -minimum_update_period 60 -debug_mode 1 -
FATE_SAMPLES_AVCONV += $(FATE_VP6-yes)
fate-vp6: $(FATE_VP6-yes)

2
tests/ref/fate/webm-dash-manifest-live
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@ -8,7 +8,7 @@
profiles="urn:mpeg:dash:profile:isoff-live:2011"
availabilityStartTime=""
timeShiftBufferDepth="PT7200S"
minimumUpdatePeriod="0">
minimumUpdatePeriod="PT60S">
<UTCTiming
schemeIdUri="urn:mpeg:dash:utc:direct:2012"
value=""/>