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Sur d’autres sites (6654)

  • Ffmpeg examples run in debug mode [on hold]

    25 août 2017, par Saeid Zangeneh

    I’m not so professional in c and cpp. I want to run FFmpeg official examples but there are many errors on include files. I can’t solve them.

    below output :when i try to run or debug the sample code

    debug output :

    cd '/home/saeid/NetBeansProjects/CppApplication_2'
    
/usr/bin/make -f Makefile CONF=Debug
    
"/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-  conf
    
make[1]: Entering directory '/home/saeid/NetBeansProjects
    
/CppApplication_2'
    

    
"/usr/bin/make"  -f nbproject/Makefile-Debug.mk dist/Debug/GNU-
    
Linux/cppapplication_2
    

    
make[2]: Entering directory '/home/saeid/NetBeansProjects
    
/CppApplication_2'
    

    
mkdir -p dist/Debug/GNU-Linux
    

    
gcc     -o dist/Debug/GNU-Linux/cppapplication_2 build/Debug/GNU-
    
Linux/sample.o 
    

    
build/Debug/GNU-Linux/sample.o: In function `select_channel_layout':
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:87: undefined 
    
reference to `av_get_channel_layout_nb_channels'
    

    
build/Debug/GNU-Linux/sample.o: In function `audio_encode_example':
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:112: undefined 
    
reference to `avcodec_find_encoder'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:117: undefined 
    
reference to `avcodec_alloc_context3'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:127: undefined 
    
reference to `av_get_sample_fmt_name'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:134: undefined 
    
reference to `av_get_channel_layout_nb_channels'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:136: undefined 
    
reference to `avcodec_open2'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:146: undefined 
    
reference to `av_frame_alloc'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:156: undefined 
    
reference to `av_samples_get_buffer_size'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:162: undefined 
    
reference to `av_malloc'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:169: undefined 
    
reference to `avcodec_fill_audio_frame'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:179: undefined 
    
reference to `av_init_packet'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:183: undefined 
    
reference to `sin'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:189: undefined 
    
reference to `avcodec_encode_audio2'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:196: undefined 
    
reference to `av_free_packet'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:201: undefined 
    
reference to `avcodec_encode_audio2'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:208: undefined 
    
reference to `av_free_packet'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:212: undefined 
    
reference to `av_freep'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:213: undefined 
    
reference to `av_frame_free'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:214: undefined 
    
reference to `avcodec_close'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:215: undefined 
    
reference to `av_free'
    

    
build/Debug/GNU-Linux/sample.o: In function `audio_decode_example':
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:229: undefined 
    
reference to `av_init_packet'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:232: undefined 
    
reference to `avcodec_find_decoder'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:237: undefined 
    
reference to `avcodec_alloc_context3'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:243: undefined 
    
reference to `avcodec_open2'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:254: undefined 
    
reference to `av_free'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:264: undefined 
    
reference to `av_frame_alloc'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:269: undefined 
    
reference to `avcodec_decode_audio4'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:276: undefined 
    
reference to `av_get_bytes_per_sample'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:305: undefined reference to `avcodec_close'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:306: undefined reference to `av_free'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:307: undefined reference to `av_frame_free'

    build/Debug/GNU-Linux/sample.o : In function `video_encode_example’ :

    /home/saeid/NetBeansProjects/CppApplication_2/sample.c:323: undefined reference to `avcodec_find_encoder'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:328: undefined reference to `avcodec_alloc_context3'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:350: undefined reference to `av_opt_set'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:352: undefined reference to `avcodec_open2'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:361: undefined reference to `av_frame_alloc'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:371: undefined reference to `av_image_alloc'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:379: undefined reference to `av_init_packet'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:399: undefined reference to `avcodec_encode_video2'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:407: undefined reference to `av_free_packet'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:413: undefined reference to `avcodec_encode_video2'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:421: undefined reference to `av_free_packet'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:427: undefined reference to `avcodec_close'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:428: undefined reference to `av_free'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:429: undefined reference to `av_freep'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:430: undefined reference to `av_frame_free'
    

    
build/Debug/GNU-Linux/sample.o: In function `decode_write_frame':
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:452: undefined reference to `avcodec_decode_video2'

    build/Debug/GNU-Linux/sample.o : In function `video_decode_example’ :

    /home/saeid/NetBeansProjects/CppApplication_2/sample.c:481: undefined reference to `av_init_packet'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:486: undefined reference to `avcodec_find_decoder'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:491: undefined reference to `avcodec_alloc_context3'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:502: undefined reference to `avcodec_open2'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:511: undefined reference to `av_frame_alloc'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:545: undefined reference to `avcodec_close'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:546: undefined reference to `av_free'
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:547: undefined reference to `av_frame_free'
    

    
build/Debug/GNU-Linux/sample.o: In function `main':
    

    
/home/saeid/NetBeansProjects/CppApplication_2/sample.c:556: undefined 
    
reference to `avcodec_register_all'
    

    
collect2: error: ld returned 1 exit status
    

    
nbproject/Makefile-Debug.mk:62: recipe for target 'dist/Debug/GNU-
    
Linux/cppapplication_2' failed
    

    
make[2]: *** [dist/Debug/GNU-Linux/cppapplication_2] Error 1
    

    
make[2]: Leaving directory '/home/saeid/NetBeansProjects/CppApplication_2'
    

    
nbproject/Makefile-Debug.mk:59: recipe for target '.build-conf' failed
    

    
make[1]: *** [.build-conf] Error 2
    

    
make[1]: Leaving directory '/home/saeid/NetBeansProjects/CppApplication_2'
    

    
nbproject/Makefile-impl.mk:39: recipe for target '.build-impl' failed
    

    
make: *** [.build-impl] Error 2

  • FFMPEG "Segmentation fault" with network stream source

    23 décembre 2023, par user11186466

    I use release : 4.2.2 (static) from "https://johnvansickle.com/ffmpeg/"

    



    Final code will be on "Amazon AWS lambda"

    



    Goal : use a url stream and add watermak

    



    Link to video : ​https://feoval.fr/519.mp4

    



    Link to Watermak : ​https://feoval.fr/watermark.png

    



    ./ffmpeg -i "https://feoval.fr/519.mp4" -i "./watermark.png" -filter_complex "overlay=W-w-10:H-h-10:format=rgb" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


    



    return "Segmentation fault"

    



    I have the same error on my computer and on AWS Lambda server

    



    ./ffmpeg -i "https://feoval.fr/519.mp4" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


    



    work (but not watermak)

    



    ./ffmpeg -i "./519.mp4" -i "./watermark.png" -filter_complex "overlay=W-w-10:H-h-10:format=rgb" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


    



    work (but not with stream)

    



    Thanks you very much !

    



    Logs for the first case who return "Segmentation fault" :

    



    ...
Stream mapping:
Stream #0:0 (h264) -> overlay:main (graph 0)
Stream #1:0 (png) -> overlay:overlay (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, ? for help
[libx264 @ 0x742e480] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x742e480] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x742e480] 264 - core 159 r2991 1771b55 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - ​http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'test.mp4':
Metadata:
major_brand : mp42
minor_version : 1
compatible_brands: isommp41mp42
encoder : Lavf58.29.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 480x848, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc58.54.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2020-01-13T08:54:26.000000Z
handler_name : Core Media Audio
encoder : Lavc58.54.100 aac
Segmentation fault (core dumped)


    


  • Preserving or syncing audio of original video to video fragments

    2 mai 2015, par Code_Ed_Student

    I currently have a few videos that I want to split into EXACTLY 30 seconds segments. I have been able to accomplish but the audio is not being properly preserve. Its out of sync. I tried playing arsample ab and other libraries but I am not getting the desired outuput. What would be the best way to both split the videos in exactly 30 second frames and preserve the audio ?

    ffmpeg -i $file -preset medium -map 0 -segment_time 30 -g 225 -r 25  -sc_threshold 0 -force_key_frames expr:gte(t,n_forced*30) -f segment -movflags faststart -vf scale=-1:720,format=yuv420p -vcodec libx264 -crf 20 -codec:a copy $dir/$video_file-%03d.mp4

    short snippet of output

    Input #0, flv, from '/media/sf_linux_sandbox/hashtag_pull/video-downloads/5b64d7ab-a669-4016-b55e-fe4720cbd843/5b64d7ab-a669-4016-b55e-fe4720cbd843.flv':
    
  Metadata:
    
    moovPosition    : 40
    
    avcprofile      : 77
    
    avclevel        : 31
    
    aacaot          : 2
    
    videoframerate  : 30
    
    audiochannels   : 2
    
    ©too           : Lavf56.15.102
    
    length          : 7334912
    
    sampletype      : mp4a
    
    timescale       : 48000
    
  Duration: 00:02:32.84, start: 0.000000, bitrate: 2690 kb/s
    
    Stream #0:0: Video: h264 (Main), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 30.30 fps, 29.97 tbr, 1k tbn, 59.94 tbc
    
    Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp
    
[libx264 @ 0x3663ba0] using SAR=1/1
    
[libx264 @ 0x3663ba0] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64
    
[libx264 @ 0x3663ba0] profile High, level 3.1
    
[libx264 @ 0x3663ba0] 264 - core 144 r2 40bb568 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=225 keyint_min=22 scenecut=0 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=20.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, segment, to '/media/sf_linux_sandbox/hashtag_pull/video-edits/30/5b64d7ab-a669-4016-b55e-fe4720cbd843/5b64d7ab-a669-4016-b55e-fe4720cbd843-%03d.mp4':
    
  Metadata:
    
    moovPosition    : 40
    
    avcprofile      : 77
    
    avclevel        : 31
    
    aacaot          : 2
    
    videoframerate  : 30
    
    audiochannels   : 2
    
    ©too           : Lavf56.15.102
    
    length          : 7334912
    
    sampletype      : mp4a
    
    timescale       : 48000
    
    encoder         : Lavf56.16.102
    
    Stream #0:0: Video: h264 (libx264), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc56.19.100 libx264
    
    Stream #0:1: Audio: aac, 48000 Hz, stereo
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (copy)

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