Akash, May be there is a better way to fix than my suggestion. My approach was to change for each file to gop of 30 and fps of 30 thro ffmpeg and then concat the files. I think the concat function is looking for I frames to concat and it might be confused if it has less I frames to work with. Try this and if it doesn't work, try even reducing gop and fps to 15. After all, you have a high bit rate of 9000k for a low resolution. I will be glad to see how it works.
Ajoy On Fri, Jul 28, 2017 at 6:47 AM, akash kulkarni <[email protected]> wrote: > Thanks ajoy, > > I have > Input #0, mpegts, from 'MTS_567i50_002.MTS': > Duration: 00:01:32.15, start: 0.000011, bitrate: 9424 kb/s > Program 1 > Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p, > 720x576 > [SAR 2304:2160 DAR 4:3], 25 fps, 50 tbr, 90k tbn, 50 tbc Stream > #0:1[0x1100]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, > s16p, 192 kb/s > > such kind of files which i wanted to merge with 720*576 resolution > These files has GOP size of 33, After i merge them at each joint point > they jerk is coming > when i looked frames with some application there are few frames of next > video mixed with > previous video and sometimes few black frames also so how could i remove > such unwanted frames and > make my video smooth. > > these videos Do have i frames after each 33rd frame so no question of key > frames would be there i guess. > > so can you tell me solution over this. > > > On Fri, Jul 28, 2017 at 2:12 AM, Ajoy Devadawson <[email protected]> > wrote: > > > I guess it could be a problem with keyframes. If you could assign > > keyframes densely, this problem could be avoided. Try assigning 1 > keyframe > > per second for your individual files, then concat would join without any > > jerk. > > > > On Thu, Jul 27, 2017 at 12:03 AM, akash kulkarni <[email protected] > > > > wrote: > > > > > DO i need to explain it more. can any 1 help out with this issue > > > > > > > > > On Wed, Jul 26, 2017 at 3:45 PM, akash kulkarni < > [email protected]> > > > wrote: > > > > > > > hie friends , > > > > i am merging few files in mts and mpg formats > > using > > > > concat demux > > > > > > > > ffmpeg -f concat -i mylist.txt -c copy output > > > > > > > > but for MTS 720*576 (SD) format , at merge point of two files it > > adding > > > > > > > > few frames of next video and few blank frames also causing jerk . can > > > > > > > > nayone help me to solve the problem and remove those frames using > > ffmpeg > > > > > > > > command in above concat demux command. > > > > > > > > 'else' > > > > > > > > Can anyone suggest how i can merge all those files without any jerk. > > > > > > > > Hope anyone help me. > > > > > > > > Thanks in advance > > > > > > > > > > > _______________________________________________ > > > ffmpeg-user mailing list > > > [email protected] > > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > > > To unsubscribe, visit link above, or email > > > [email protected] with subject "unsubscribe". > > > > > > > > > > -- > > Ajoy A. Devadawson > > Email: [email protected] > > Mobile # 1-404-626-6340 > > Skype: AjoyDawson > > _______________________________________________ > > ffmpeg-user mailing list > > [email protected] > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > [email protected] with subject "unsubscribe". > > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". > -- Ajoy A. Devadawson Email: [email protected] Mobile # 1-404-626-6340 Skype: AjoyDawson _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
