On 2015-09-01 at 16:27, Rainer Hochecker wrote: > > fix splitting extradata from ts
Hi, this commit introduces a regression for me. I'm trying to extract a thumb from the middle of a live TS, containing one HEVC-stream. Unfortunately I'm not sure if I can provide a sample, but before this patch I would always get a good looking thumb, but with this patch I would for the most part get a mostly gray frame. If I generates a few more thumbnails i see that it eventually spits out the same frame that ffmpeg before this patch produced as the first thumb, and it looks OK. However it is much more blocky than what the previous ffmpeg produced: This is the command I want to run: ffmpeg -nostdin -y -an -i hevc_fail.ts -vframes 1 -vf scale=iw*sar:ih thumb%d.jpg -v 100 Before this patch: http://kolbu.ws/~chiller/thumb1.jpg with this patch: http://kolbu.ws/~chiller/thumb1.62bd8deef9005dbc9750e3bdc12fbf9b50392adc.jpg If i let it generates a few more thumbs I end up with a "good" thumb: http://kolbu.ws/~chiller/thumb18.62bd8deef9005dbc9750e3bdc12fbf9b50392adc.jpg However, if you compare the two you will see that even the good thumb with this patch is much more blocky. -- Ståle Kristoffersen _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
