On 2017-05-23 04:09, Steven Liu wrote:
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?
Hi,
Thank you very much for the reply.
I installed ffmpeg 3.3-1~16.04.york1 for Ubuntu 16.04 from PPA. I think
it includes all the libraries and command line tools.
I concatenated the initialization file init.mp4 with one of the segments
seg1.m4s to new_seg.mp4 using cat. With the help of mp4dump, I could see
that all the required information (e.g. [trak] and [trex]) presented in
new_seg.mp4.
However, I still got the same errors when I was upconverting
new_seg.mp4. The following is the errors returned:
command: ffmpeg -i new_seg.mp4 -vf scale=1920:1080 seg_1080.mp4
errors:
ffmpeg version 3.3-1~16.04.york1 Copyright (c) 2000-2017 the FFmpeg
developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version='1~16.04.york1'
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping
--enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
--enable-libcdio --enable-libflite --enable-libfontconfig
--enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm
--enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt
--enable-libopus --enable-libpulse --enable-librubberband
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
--enable-libssh --enable-libtheora --enable-libtwolame
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi
--enable-omx --enable-openal --enable-opengl --enable-sdl2
--enable-libdc1394 --enable-libiec61883 --enable-chromaprint
--enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
WARNING: library configuration mismatch
avcodec configuration: --prefix=/usr
--extra-version='1~16.04.york1' --toolchain=hardened
--libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping
--enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
--enable-libcdio --enable-libflite --enable-libfontconfig
--enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm
--enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt
--enable-libopus --enable-libpulse --enable-librubberband
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
--enable-libssh --enable-libtheora --enable-libtwolame
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi
--enable-omx --enable-openal --enable-opengl --enable-sdl2
--enable-libdc1394 --enable-libiec61883 --enable-chromaprint
--enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
--enable-version3 --disable-doc --disable-programs
--enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libtesseract --enable-libvo_amrwbenc --enable-netcdf
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x560c39cfc380] could not find corresponding
trex
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x560c39cfc380] error reading header
seg1.mp4: Invalid data found when processing input
What can be wrong?
Best regards,
Qian
Thanks in advance!
Best regards,
Qian
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