2017.01.03. 1:22 keltezéssel, Steven Liu írta:
2017-01-03 2:58 GMT+08:00 Bodecs Bela <bode...@vivanet.hu>:
Dear All,
this patch makes it possible to put actual segment file size (measured
in bytes) and/or duration (calculated in microseconds) into segment
filenames. This feature is useful when post-processing live streaming
access log files. New behaviour works only when -use_localtime option
is set and second_level_segment_size or/and
second_level_segment_duration new hls_flags are specified. %%s is the
placeholder for size and %%t for duration in hls_segment_filename
option. Fix sized trailing zeropadding also works eg. %%09s or %%023t.
A command to test new features:
./ffmpeg -loglevel info -y -f lavfi -i color=c=red:size=640x480:r=25 -f
lavfi -i sine=f=440:b=4:r=44100 -c:v mpeg2video -g 25 -acodec aac
-cutoff 20000 -ac 2 -ar 44100 -ab 192k -f hls -hls_time 3 -hls_list_size
5 -hls_flags
second_level_segment_index+second_level_segment_size+second_
level_segment_duration
-use_localtime 1 -use_localtime_mkdir 1 -hls_segment_filename
"segment_%Y%m%d%H%M%S_%%04d_%%08s_%%013t.ts" stream.m3u8
this will produce segments like this:
segment_20170102194334_0003_00122200_0000003000000.ts
segment_20170102194334_0004_00120072_0000003000000.ts
etc.
thank you in advance,
Bela Bodecs
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you should add document for the new option.
I have enclosed it.
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>From 83346eaedb3d4be2ec0494ffd6f49244bf44c920 Mon Sep 17 00:00:00 2001
From: Bela Bodecs <bode...@vivanet.hu>
Date: Tue, 3 Jan 2017 09:34:38 +0100
Subject: [PATCH] doc/muxers: hls second_level_segment_duration,
second_level_segment_size
Documentation of new feature of hlsenc to include segment size and
duration in their name.
Signed-off-by: Bela Bodecs <bode...@vivanet.hu>
---
doc/muxers.texi | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/doc/muxers.texi b/doc/muxers.texi
index 018f289..b97e9f9 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -584,7 +584,24 @@ seeking. This flag should be used with the @code{hls_time} option.
Generate @code{EXT-X-PROGRAM-DATE-TIME} tags.
@item second_level_segment_index
-Makes it possible to use segment indexes as %%d besides date/time values when use_localtime is on.
+Makes it possible to use segment indexes as %%d in hls_segment_filename expression besides date/time values when use_localtime is on. To get fixed width numbers with trailing zeroes, %%0xd format is available where x is the required width.
+
+@item second_level_segment_size
+Makes it possible to use segment sizes (counted in bytes) as %%s in hls_segment_filename expression besides date/time values when use_localtime is on. To get fixed width numbers with trailing zeroes, %%0xs format is available where x is the required width.
+
+@item second_level_segment_duration
+Makes it possible to use segment duration (calculated in microseconds) as %%t in hls_segment_filename expression besides date/time values when use_localtime is on. To get fixed width numbers with trailing zeroes, %%0xt format is available where x is the required width.
+
+@example
+./ffmpeg -loglevel info -y -f lavfi -i color=c=red:size=640x480:r=25 \
+ -f lavfi -i sine=f=440:b=4:r=44100 -c:v mpeg2video -g 25 -acodec aac -cutoff 20000 -ac 2 -ar 44100 -ab 192k \
+ -f hls -hls_time 3 -hls_list_size 5 \
+ -hls_flags second_level_segment_index+second_level_segment_size+second_level_segment_duration \
+ -use_localtime 1 -use_localtime_mkdir 1 -hls_segment_filename "segment_%Y%m%d%H%M%S_%%04d_%%08s_%%013t.ts" stream.m3u8
+@end example
+This will produce segments like this:
+@file{segment_20170102194334_0003_00122200_0000003000000.ts}, @file{segment_20170102194334_0004_00120072_0000003000000.ts} etc.
+
@end table
--
2.5.3.windows.1
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