Hey Guys, This is in continuation of my previous question, since I didn't get any response from you guys so I tried to look deeper into the issue and tried with different video lengths and different videos and I got the expected results for all except this video https://vimeo.com/140349795 <https://www.google.com/url?q=https%3A%2F%2Fvimeo.com%2F140349795&sa=D&sntz=1&usg=AFQjCNFIpBRQ54PCURQlgvGxApF60JTpTA> which I was using as a test video for long video tests, still not sure why cant we see the second dialog(subtitle) when we reduce the time interval below 1 sec. Would appreciate if someone has some pointers to share which could explain this unusual behavior.Thanks Regards,
On Mon, Mar 21, 2016 at 11:34 AM, Aameer Rafiq Wani <aameer.ra...@gmail.com> wrote: > hey guys, > I am facing an issue while I try to burn a dialog on a large video when I > try to reduce the time interval for which it should appear it seizes to > show up if the time interval is less than 1 sec while this is not the case > with smaller videos and we can go down to approx 0.15 seconds with videos > of 44 secs or 40 mins. > > I am sharing my encoding code snippet from my shell script ,which is like: > > #360 version > (time ffmpeg -i test.mp4 -profile:v baseline -level 4.0 -vf > "scale=-2:360,subtitles='subtitle_test.ass':force_style='FontName=Aaargh/Aaargh.ttf,PrimaryColour=&H664c4c4c" > -start_number 0 -hls_time 10 -hls_list_size 0 -f hls > /mnt/s3_temp/bucketname/project_id/videos/3342/3428_360_.m3u8" && echo "360 > version:" >> encoding_logs.log ) 2>> encoding_logs.log & > > and the subtitle_test.ass file is like (e.g for 119m 31 s videos which is > 3.9 GB) > > [Script Info] > ; Script generated by FFmpeg/Lavc57.24.103 > ScriptType: v4.00+ > PlayResX: 384 > PlayResY: 288 > > [V4+ Styles] > Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, > OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, > ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, > MarginR, MarginV, Encoding > Style: > Default,Arial,16,&H99999999,&H99999999,&H0,&H0,0,0,0,0,100,100,0,0,1,0,0,2,10,10,10,0 > Style: > Hidden,Arial,16,&H99999999,&H99999999,&H0,&H0,0,0,0,0,100,100,0,0,1,0,0,6,10,10,10,0 > > [Events] > Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, > Text > Dialogue: 0,0:00:00.00,1:59:31.783,Default,,0,0,0,,dialog1 > Dialogue: 0,0:39:50.927,0:39:51.927,Hidden,,0,0,10,,dialog2 > > Note the timings for dailog2 which is > dialog2 start : 0:39:50.927 > dialog2 end : 0:39:51.927 > > dialog2_time_interval = (dialog2 start time- dialog2 end time) = 1 sec > > what I am trying to achieve is to display the first dialog for the entire > length and the second dialog for smallest amount of time possible.For now > what I have achieved is for smaller videos of few seconds or few mins the > dialog2 appears even when the dialog2_time_interval is less than 1 sec. I > got a successful test with dialog2_time_interval=0.15 sec(approximately 150 > milliseconds). > But with large videos say in above case the dialog2 appears only when the > dialog2_time_interval is greater than or equal to 1 sec. I want to know is > there a relation between the video length and dialog2_time_interval which i > should keep in mind to minimize dialog2_time_interval for video of any > length. > > Moreover I also see a delay of few seconds with the dialog , i.e they > appear few milliseconds or secs after they were supposed to appear, is that > normal.Thanks. > > For some reason if the details mentioned here are not enough I have a > small blog post relating the same which could through a little more light > on this subject here(http://aameer.github.io/cloud-computing-101/). Thanks > > Regards, > AAMEER RAFIQ WANI > email: aameer.ra...@gmail.com > websites: aameer.github.io <aam...@github.io> > LinkedIn: http://in.linkedin.com/in/aameerwani > -- Regards, AAMEER RAFIQ WANI email: aameer.ra...@gmail.com websites: aameer.github.io <aam...@github.io> / aameer.weebly.com Facebook: https://www.facebook.com/aameerrafiq.wani LinkedIn: http://in.linkedin.com/in/aameerwani Contact number: +919500083139 Current location: Bangalore India. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
