2017-05-22 17:26 GMT+08:00 Qian Li <q...@ifi.uio.no>: > Hello, > > > I am a newbie of FFmpeg. I am trying to upscale a single video segment > (downloaded by a DASH client from a DASH server) to a higher resolution. I > tried the copy and scale filters, but both of them gave the following > errors: > > > [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55f1d6eeb8e0] could not find corresponding > track id 1 > [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55f1d6eeb8e0] could not find corresponding > trex > [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55f1d6eeb8e0] error reading header > BigBuckBunny_4s1.m4s: Invalid data found when processing input > > The following is the meta data of BigBuckBunny_4s1.m4s generated by mp4dump > > ?[styp] size=8+16 > [sidx] size=12+32 > reference_ID = 1 > timescale = 96 > earliest_presentation_time = 0 > first_offset = 0 > [moof] size=8+464 > [mfhd] size=12+4 > sequence number = 1 > [traf] size=8+440 > [tfhd] size=12+4, flags=20000 > track ID = 1 > [tfdt] size=12+4 > base media decode time = 0 > [trun] size=12+396, flags=205 > sample count = 96 > data offset = 480 > first sample flags = 0 > [mdat] size=8+21112 > > The following is the meta data of the init.mp4 file > [ftyp] size=8+20 > major_brand = iso5 > minor_version = 1 > compatible_brand = avc1 > compatible_brand = dash > compatible_brand = iso5 > [free] size=8+50 > [moov] size=8+783 > ... > > Could you give me a hint on what is wrong and how to upscale a single DASH > segment? >
which module do you using? ffmpeg dash muxer? or other? > > Thanks in advance! > > Best regards, > Qian > > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".