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• Shotdetect : compiling error ("undefined reference")

  8 juillet 2015, par Voprosnik

  I am using Cygwin and I trying to install the program Shotdetect. I downloaded the source with git and also downloaded, compiled and installed ffmpeg through git.

  Installation of shotdetect doesn’t follow the ./configure && make && make install routine, but a cmake system of which I have no experience. Nonetheless there is a script that automates compiling and installation.

  Near the final stages of the compiling, I get a long series of errors concerning some ffmpeg modules :

  Linking CXX executable shotdetect-cmd.exe
  
  /usr/local/lib/libavformat.a(matroskadec.o): In function `matroska_decode_buffer':
  
  /git/ffmpeg/libavformat/matroskadec.c:1321: undefined reference to `BZ2_bzDecompressInit'
  
  /git/ffmpeg/libavformat/matroskadec.c:1336: undefined reference to `BZ2_bzDecompress'
  
  /git/ffmpeg/libavformat/matroskadec.c:1329: undefined reference to `BZ2_bzDecompressEnd'
  
  /git/ffmpeg/libavformat/matroskadec.c:1339: undefined reference to `BZ2_bzDecompressEnd'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_decode_subpacket':
  
  /git/ffmpeg/libavcodec/opusdec.c:374: undefined reference to `swr_is_initialized'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_decode_frame':
  
  /git/ffmpeg/libavcodec/opusdec.c:220: undefined reference to `swr_is_initialized'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_init_resample':
  
  /git/ffmpeg/libavcodec/opusdec.c:161: undefined reference to `swr_init'
  
  /git/ffmpeg/libavcodec/opusdec.c:167: undefined reference to `swr_convert'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_decode_frame':
  
  /git/ffmpeg/libavcodec/opusdec.c:234: undefined reference to `swr_convert'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_flush_resample':
  
  /git/ffmpeg/libavcodec/opusdec.c:115: undefined reference to `swr_convert'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_decode_subpacket':
  
  /git/ffmpeg/libavcodec/opusdec.c:406: undefined reference to `swr_close'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_decode_flush':
  
  /git/ffmpeg/libavcodec/opusdec.c:567: undefined reference to `swr_close'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_decode_close':
  
  /git/ffmpeg/libavcodec/opusdec.c:589: undefined reference to `swr_free'
  
  /usr/local/lib/libavcodec.a(opusdec.o): In function `opus_decode_init':
  
  /git/ffmpeg/libavcodec/opusdec.c:642: undefined reference to `swr_alloc'
  
  /usr/local/lib/libavcodec.a(tiff.o): In function `tiff_uncompress_lzma':
  
  /git/ffmpeg/libavcodec/tiff.c:396: undefined reference to `lzma_stream_decoder'
  
  /git/ffmpeg/libavcodec/tiff.c:401: undefined reference to `lzma_code'
  
  /git/ffmpeg/libavcodec/tiff.c:402: undefined reference to `lzma_end'
  
  /usr/local/lib/libavcodec.a(utils.o): In function `recode_subtitle':
  
  /git/ffmpeg/libavcodec/utils.c:2672: undefined reference to `libiconv_open'
  
  /git/ffmpeg/libavcodec/utils.c:2707: undefined reference to `libiconv_close'
  
  /git/ffmpeg/libavcodec/utils.c:2693: undefined reference to `libiconv'
  
  /git/ffmpeg/libavcodec/utils.c:2694: undefined reference to `libiconv'
  
  /git/ffmpeg/libavcodec/utils.c:2707: undefined reference to `libiconv_close'
  
  /git/ffmpeg/libavcodec/utils.c:2707: undefined reference to `libiconv_close'
  
  /git/ffmpeg/libavcodec/utils.c:2707: undefined reference to `libiconv_close'
  
  /usr/local/lib/libavcodec.a(utils.o): In function `avcodec_open2':
  
  /git/ffmpeg/libavcodec/utils.c:1698: undefined reference to `libiconv_open'
  
  /git/ffmpeg/libavcodec/utils.c:1705: undefined reference to `libiconv_close'
  
  collect2: error: ld returned 1 exit status
  
  clang: error: linker (via gcc) command failed with exit code 1 (use -v to see invocation)
  
  CMakeFiles/shotdetect-cmd.dir/build.make:122: recipe for target 'shotdetect-cmd.exe' failed
  
  make[2]: *** [shotdetect-cmd.exe] Error 1
  
  CMakeFiles/Makefile2:95: recipe for target 'CMakeFiles/shotdetect-cmd.dir/all' failed
  
  make[1]: *** [CMakeFiles/shotdetect-cmd.dir/all] Error 2
  
  Makefile:117: recipe for target 'all' failed
  
  make: *** [all] Error 2

  Searching online for similar errors, I found the following proposed solutions

  1) fix pkg-config setup so configure will find out all dependencies ;

  2) build ffmpeg (libavcodec) without external dependencies ;

  3) add external dependencies manually with configure —extra-ldflags

  I guess the problem lies on how i compiled ffmpeg (just configure with no options) but other than that have no idea what to do with either of the above suggestions. Should I recompile ffmpeg with different options ?

• FFmpeg concat with watermarks and audio "stream specifier in filtergraph description matches no streams."

  28 mars 2016, par btalbot

  I’m trying to concatenate an arbitrary number of videos with a series of watermarks over them :

  ffmpeg -i segment0.mp4 -i segment1.mp4 -i ... segmentn.mp4 -i end.mp4 -i ../../watermark/watermark1280/watermark_%05d.png -filter_complex "[0:v][1:v]...[n:v]concat=n=n:v=1:a=0 [v], [v] overlay [p]" -map "[v]" -an -y output.mp4

  I am getting the following error :

  Stream specifier ':v' in filtergraph description [0:v][1:v]...[n:v]concat=n=n:v=1:a=0 [v], [v] overlay [p] matches no streams.

  Here is the full output of my latest attempt :

  ffmpeg version N-78734-g666e2ed Copyright (c) 2000-2016 the FFmpeg developers
 built with gcc 5.3.0 (GCC)
 configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
 libavutil      55. 19.100 / 55. 19.100
 libavcodec     57. 25.101 / 57. 25.101
 libavformat    57. 26.100 / 57. 26.100
 libavdevice    57.  0.101 / 57.  0.101
 libavfilter     6. 36.100 /  6. 36.100
 libswscale      4.  0.100 /  4.  0.100
 libswresample   2.  0.101 /  2.  0.101
 libpostproc    54.  0.100 / 54.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'segment0.mp4':
 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf57.26.100
 Duration: 00:00:02.01, start: 0.010000, bitrate: 6 kb/s
   Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2 kb/s (default)
   Metadata:
     handler_name    : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'segment1.mp4':
 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf57.26.100
 Duration: 00:00:01.99, start: 0.066000, bitrate: 5014 kb/s
   Stream #1:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv), 1280x720, 5008 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)
   Metadata:
     handler_name    : VideoHandler
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'segment2.mp4':
 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf57.26.100
 Duration: 00:00:02.01, start: 0.009000, bitrate: 424 kb/s
   Stream #2:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 1111 kb/s, 59 fps, 59 tbr, 15104 tbn, 118 tbc (default)
   Metadata:
     handler_name    : VideoHandler
   Stream #2:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2 kb/s (default)
   Metadata:
     handler_name    : SoundHandler
Input #3, mov,mp4,m4a,3gp,3g2,mj2, from 'segment3.mp4':
 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf57.26.100
 Duration: 00:00:01.85, start: 0.205000, bitrate: 5058 kb/s
   Stream #3:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv), 1280x720, 5050 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)
   Metadata:
     handler_name    : VideoHandler
Input #4, mov,mp4,m4a,3gp,3g2,mj2, from 'segment4.mp4':
 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf57.26.100
 Duration: 00:00:01.77, start: 0.282000, bitrate: 5174 kb/s
   Stream #4:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv), 1280x720, 5167 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)
   Metadata:
     handler_name    : VideoHandler
Input #5, mov,mp4,m4a,3gp,3g2,mj2, from 'segment5.mp4':
 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf57.26.100
 Duration: 00:00:02.01, start: 0.006000, bitrate: 955 kb/s
   Stream #5:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 1448 kb/s, 59 fps, 59 tbr, 15104 tbn, 118 tbc (default)
   Metadata:
     handler_name    : VideoHandler
   Stream #5:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2 kb/s (default)
   Metadata:
     handler_name    : SoundHandler
Input #6, mov,mp4,m4a,3gp,3g2,mj2, from '../../slate/Void_test.mp4':
 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf57.26.100
 Duration: 00:00:02.97, start: 0.000000, bitrate: 3176 kb/s
   Stream #6:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 3169 kb/s, 59.94 fps, 59.94 tbr, 11988 tbn, 119.88 tbc (default)
   Metadata:
     handler_name    : VideoHandler
Input #7, image2, from '../../watermark/watermark1280/watermark_%05d.png':
 Duration: 00:00:14.40, start: 0.000000, bitrate: N/A
   Stream #7:0: Video: png, ya8(pc), 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream specifier ':v' in filtergraph description [0:v][1:v][2:v][3:v][4:v][5:v][6:v]concat=n=7:v=1:a=0 [v], [v] overlay [p] matches no streams.

  Also, if someone can help me do this with a single mp3 audio input over the whole concatenated video, that’d be helpful, too.

• jpeg "frames" to MP4 conversion, quick fix [duplicate]

  15 avril 2020, par ראלף מהנובר

  How do I convert a series of jpeg images ("Test 03_0000.jpeg" to "Test 03_3000.jpeg") into an MP4 (30fps) ?

  



  I have tried Lightworks and Animotica. It did not work.

  



  I have downloaded ffmpeg now, but tutorial tl/dr.

  



  Help !