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• Laravel Process() with FFMPEG times out for any video that is even kind of large

  16 août 2024, par Hunter

  I am creating an application that lets users upload video files, and once they do it will convert them all to .mp4's (it does some other things, but since this first part of the code is breaking before it gets a chance to reach the other stuff, and the process for each is pretty similar, lets just discuss this issue).

  



  Once a user submits, it gets sent to GameController@store. Below is a code sample (the one that keeps getting sent back to me as problematic) from the controller :

  



  $process = new Process(env('APP_FFMPEG', 'ffmpeg') . ' -i ' . $fileURL . ' -f mp4 -vcodec libx264 -preset medium -profile:v main -c:a aac -movflags +faststart ' . $newFileName . ' -hide_banner');
              $process->setTimeout(360);
              $process->setIdleTimeout(60);
              $process->run();
              if (!$process->isSuccessful()) {
                throw new ProcessFailedException($process);
              }


  



  I am using the Symfony Process() class to run the FFMpeg conversion. The weird thing is, when I run this with a 1 or 2 second video, it goes without a hitch. This, to me, rules out issues like path problems, permission problems, etc. Multiple file types work with this, as long as they are very short. As soon as I put in a video that is even around 1min, it returns with this :

  



  The process "/usr/local/bin/ffmpeg -i http://localhost/storage/team_1_folder/game_26/team_1_game_26_vid_1.mp4 -f mp4 -vcodec libx264 -preset medium -profile:v main -c:a aac -movflags +faststart storage/team_1_folder/game_26/convertedVideo_1.mp4 -hide_banner" exceeded the timeout of 360 seconds.


  



  Now, notice that it says 'timeout of 360 seconds'. That is because I have also edited ALL of the possible timeout constraints, as well as the file size constraints that I can think of. Here is what I have done :
  

  



  -Changed php.ini (in my MAMP installation) values :
  
—max_execution_time = 300 (default was 30)
  
—memory_limit = 1280M (default was 128)
  
—post_max_size = 800M
  
—upload_max_filesize = 3200M
  
-max_input_time=300
  

  



  -In the GameController (code above)
  
—$process->setTimeout(360) ;
  
—$process->setTimeout(360) ;
  

  



  After all that, with a big file, the thing will just stall for the 6 minutes that I have set on the timeout thing, and then send an error. Is FFmpeg just stalling, or is this a process issue ? Who knows. Errors surrounding these things are just beautifully vague.

  



  I have tagged Laravel, PHP, and FFmpeg in hopes that someone will recognize this issue. I know that Process() is sending me the error, but since it is sending me a timeout, I don't know what is at fault.

  



  I'm not ruling anything out, so hit me with ideas, even crazy ones !

  



  Edit
Here is the output of the -report. I cut some of it off because the end part gets repetitive and goes for literally 1000 lines :

  



  ffmpeg started on 2019-06-24 at 18:50:23
Report written to "ffmpeg-20190624-185023.log"
Command line:
/usr/local/bin/ffmpeg -i http://localhost/storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4 -f mp4 -vcodec libx264 -preset medium -profile:v main -c:a aac -movflags +faststart storage/team_1_folder/game_31/convertedVideo_1.mp4 -report
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.3_1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-11.0.2.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-11.0.2.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Splitting the commandline.
Reading option '-i' ... matched as input url with argument 'http://localhost/storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'mp4'.
Reading option '-vcodec' ... matched as option 'vcodec' (force video codec ('copy' to copy stream)) with argument 'libx264'.
Reading option '-preset' ... matched as AVOption 'preset' with argument 'medium'.
Reading option '-profile:v' ... matched as option 'profile' (set profile) with argument 'main'.
Reading option '-c:a' ... matched as option 'c' (codec name) with argument 'aac'.
Reading option '-movflags' ... matched as AVOption 'movflags' with argument '+faststart'.
Reading option 'storage/team_1_folder/game_31/convertedVideo_1.mp4' ... matched as output url.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input url http://localhost/storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4.
Successfully parsed a group of options.
Opening an input file: http://localhost/storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4.
[NULL @ 0x7f9ad480ae00] Opening 'http://localhost/storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4' for reading
[http @ 0x7f9ad3c6b540] Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy'
[tcp @ 0x7f9ad3e00400] Original list of addresses:
[tcp @ 0x7f9ad3e00400] Address ::1 port 80
[tcp @ 0x7f9ad3e00400] Address 127.0.0.1 port 80
[tcp @ 0x7f9ad3e00400] Interleaved list of addresses:
[tcp @ 0x7f9ad3e00400] Address ::1 port 80
[tcp @ 0x7f9ad3e00400] Address 127.0.0.1 port 80
[tcp @ 0x7f9ad3e00400] Starting connection attempt to ::1 port 80
[tcp @ 0x7f9ad3e00400] Successfully connected to ::1 port 80
[http @ 0x7f9ad3c6b540] request: GET /storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4 HTTP/1.1
User-Agent: Lavf/58.20.100
Accept: */*
Range: bytes=0-
Connection: close
Host: localhost
Icy-MetaData: 1


[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] ISO: File Type Major Brand: isom
[tcp @ 0x7f9ad3c6b840] Original list of addresses:
[tcp @ 0x7f9ad3c6b840] Address ::1 port 80
[tcp @ 0x7f9ad3c6b840] Address 127.0.0.1 port 80
[tcp @ 0x7f9ad3c6b840] Interleaved list of addresses:
[tcp @ 0x7f9ad3c6b840] Address ::1 port 80
[tcp @ 0x7f9ad3c6b840] Address 127.0.0.1 port 80
[tcp @ 0x7f9ad3c6b840] Starting connection attempt to ::1 port 80
[tcp @ 0x7f9ad3c6b840] Successfully connected to ::1 port 80
[http @ 0x7f9ad3c6b540] request: GET /storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4 HTTP/1.1
User-Agent: Lavf/58.20.100
Accept: */*
Range: bytes=170169585-
Connection: close
Host: localhost
Icy-MetaData: 1


[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] Processing st: 0, edit list 0 - media time: 0, duration: 10584600
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 0 ctts: 0, ctts_index: 0, ctts_count: 10575
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 1 ctts: 4002, ctts_index: 1, ctts_count: 10575
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 1000 ctts: 0, ctts_index: 2, ctts_count: 10575
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 2001 ctts: 0, ctts_index: 3, ctts_count: 10575
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 3002 ctts: 0, ctts_index: 4, ctts_count: 10575
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 4003 ctts: 4004, ctts_index: 5, ctts_count: 10575
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 5004 ctts: 0, ctts_index: 6, ctts_count: 10575


  



  Edit 2
I also found this towards the bottom :

  



  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 10582571 ctts: 0, ctts_index: 10573, ctts_count: 10575
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] stts: 10583572 ctts: 1001, ctts_index: 10574, ctts_count: 10575
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] Setting codecpar->delay to 1 for stream st: 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] Processing st: 1, edit list 0 - media time: 0, duration: 15563816
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] Before avformat_find_stream_info() pos: 170509020 bytes read:372203 seeks:1 nb_streams:2
[h264 @ 0x7f9ad4811200] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7f9ad4811200] nal_unit_type: 8(PPS), nal_ref_idc: 3
[tcp @ 0x7f9ad3c72d40] Original list of addresses:
[tcp @ 0x7f9ad3c72d40] Address ::1 port 80
[tcp @ 0x7f9ad3c72d40] Address 127.0.0.1 port 80
[tcp @ 0x7f9ad3c72d40] Interleaved list of addresses:
[tcp @ 0x7f9ad3c72d40] Address ::1 port 80
[tcp @ 0x7f9ad3c72d40] Address 127.0.0.1 port 80
[tcp @ 0x7f9ad3c72d40] Starting connection attempt to ::1 port 80
[tcp @ 0x7f9ad3c72d40] Successfully connected to ::1 port 80
[http @ 0x7f9ad3c6b540] request: GET /storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4 HTTP/1.1
User-Agent: Lavf/58.20.100
Accept: */*
Range: bytes=48-
Connection: close
Host: localhost
Icy-MetaData: 1


[h264 @ 0x7f9ad4811200] nal_unit_type: 5(IDR), nal_ref_idc: 1
[h264 @ 0x7f9ad4811200] Format yuv420p chosen by get_format().
[h264 @ 0x7f9ad4811200] Reinit context to 1920x1088, pix_fmt: yuv420p
[h264 @ 0x7f9ad4811200] no picture 
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] All info found
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9ad480ae00] After avformat_find_stream_info() pos: 308454 bytes read:680609 seeks:2 frames:2
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://localhost/storage/team_1_folder/game_31/team_1_game_31_vid_1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.40.101
  Duration: 00:05:52.92, start: 0.000000, bitrate: 3865 kb/s
    Stream #0:0(und), 1, 1/30000: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 3730 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und), 1, 1/44100: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Successfully opened the file.
Parsing a group of options: output url storage/team_1_folder/game_31/convertedVideo_1.mp4.
Applying option f (force format) with argument mp4.
Applying option vcodec (force video codec ('copy' to copy stream)) with argument libx264.
Applying option profile:v (set profile) with argument main.
Applying option c:a (codec name) with argument aac.
Successfully parsed a group of options.
Opening an output file: storage/team_1_folder/game_31/convertedVideo_1.mp4.
[file @ 0x7f9ad3f02740] Setting default whitelist 'file,crypto'
Successfully opened the file.
detected 4 logical cores
[h264 @ 0x7f9ad5813a00] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7f9ad5813a00] nal_unit_type: 8(PPS), nal_ref_idc: 3
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[graph_1_in_0_1 @ 0x7f9ad3dbcc00] Setting 'time_base' to value '1/44100'
[graph_1_in_0_1 @ 0x7f9ad3dbcc00] Setting 'sample_rate' to value '44100'
[graph_1_in_0_1 @ 0x7f9ad3dbcc00] Setting 'sample_fmt' to value 'fltp'
[graph_1_in_0_1 @ 0x7f9ad3dbcc00] Setting 'channel_layout' to value '0x3'
[graph_1_in_0_1 @ 0x7f9ad3dbcc00] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
[format_out_0_1 @ 0x7f9ad3c71040] Setting 'sample_fmts' to value 'fltp'
[format_out_0_1 @ 0x7f9ad3c71040] Setting 'sample_rates' to value '96000|88200|64000|48000|44100|32000|24000|22050|16000|12000|11025|8000|7350'
[AVFilterGraph @ 0x7f9ad3e00440] query_formats: 4 queried, 9 merged, 0 already done, 0 delayed
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[h264 @ 0x7f9ad5813a00] nal_unit_type: 5(IDR), nal_ref_idc: 1
[h264 @ 0x7f9ad5813a00] Format yuv420p chosen by get_format().
[h264 @ 0x7f9ad5813a00] Reinit context to 1920x1088, pix_fmt: yuv420p
[h264 @ 0x7f9ad5813a00] no picture 
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[h264 @ 0x7f9ad5804600] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[h264 @ 0x7f9ad5804c00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[h264 @ 0x7f9ad5805200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[h264 @ 0x7f9ad5805800] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[h264 @ 0x7f9ad5813a00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
[graph 0 input from stream 0:0 @ 0x7f9ad3dbfb80] Setting 'video_size' to value '1920x1080'
[graph 0 input from stream 0:0 @ 0x7f9ad3dbfb80] Setting 'pix_fmt' to value '0'
[graph 0 input from stream 0:0 @ 0x7f9ad3dbfb80] Setting 'time_base' to value '1/30000'
[graph 0 input from stream 0:0 @ 0x7f9ad3dbfb80] Setting 'pixel_aspect' to value '1/1'
[graph 0 input from stream 0:0 @ 0x7f9ad3dbfb80] Setting 'sws_param' to value 'flags=2'
[graph 0 input from stream 0:0 @ 0x7f9ad3dbfb80] Setting 'frame_rate' to value '30000/1001'
[graph 0 input from stream 0:0 @ 0x7f9ad3dbfb80] w:1920 h:1080 pixfmt:yuv420p tb:1/30000 fr:30000/1001 sar:1/1 sws_param:flags=2
[format @ 0x7f9ad3dc0100] Setting 'pix_fmts' to value 'yuv420p|yuvj420p|yuv422p|yuvj422p|yuv444p|yuvj444p|nv12|nv16|nv21|yuv420p10le|yuv422p10le|yuv444p10le|nv20le'
[AVFilterGraph @ 0x7f9ad3c6e880] query_formats: 4 queried, 3 merged, 0 already done, 0 delayed
[libx264 @ 0x7f9ad5811200] using mv_range_thread = 88
[libx264 @ 0x7f9ad5811200] using SAR=1/1
[libx264 @ 0x7f9ad5811200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f9ad5811200] profile Main, level 4.0
[libx264 @ 0x7f9ad5811200] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 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=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 'storage/team_1_folder/game_31/convertedVideo_1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.20.100
    Stream #0:0(und), 0, 1/30000: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc58.35.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1(und), 0, 1/44100: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc58.35.100 aac
Clipping frame in rate conversion by 0.000008
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[h264 @ 0x7f9ad5804600] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
Clipping frame in rate conversion by 0.000999
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[h264 @ 0x7f9ad5804c00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
Clipping frame in rate conversion by 0.000999
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5805200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5805800] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5813a00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5804600] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5804c00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5805200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5805800] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5813a00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5804600] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5804c00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5805200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5805800] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5813a00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5804600] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5804c00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999
[h264 @ 0x7f9ad5805200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Clipping frame in rate conversion by 0.000999


  


• ffmpeg : simple RTMP streaming over LAN

  30 mars 2013, par sajad

  I am trying to launch up a rtmp transcoder server using ffmpeg ; that receives udp MPEG-TS streams as input, transcodes it ; and generates an rtmp output to a URL, that can be accessed by users to receive and play the rtmp stream. All these are expected to be performed in a LAN and the output be accessed by all users.

  1) First I don't know where the URL should point to. Is it enought to specify the IP of the system and some optional port ? Is it neccessary that a program should be listening on that port ?

  2) How I can play the stream on the URL ?

  I use a linux ubuntu machine whith IP=10.1.1.229 and I want to transcode multicast stream on this URL : udp://@224.10.1.1:2001.

  here is the command used to transcode input stream and generate rtmp url "rtmp ://10.1.1.229:2020".

  ffmpeg -y -f mpegts -i "udp://@224.10.1.1:2001" -re -vcodec libx264 -maxrate 700k -r 25 -s 640x360 -deinterlace -acodec libfaac -ab 64k -ac 1 -ar 44100 -f flv "rtmp://10.1.1.229:2020"

  and here is the command by which I am trying to play rtmp stream :

  ffplay rtmp://10.1.1.229:2020

  Any guidance would be helpfull. Thank you.

• Notes on Linux for Dreamcast

  23 février 2011, par Multimedia Mike — Sega Dreamcast, VP8

  I wanted to write down some notes about compiling Linux on Dreamcast (which I have yet to follow through to success). But before I do, allow me to follow up on my last post where I got Google’s libvpx library decoding VP8 video on the DC. Remember when I said the graphics hardware could only process variations of RGB color formats ? I was mistaken. Reading over some old documentation, I noticed that the DC’s PowerVR hardware can also handle packed YUV textures (UYVY, specifically) :

  
  
  

  The video looks pretty sharp in the small photo. Up close, less so, due to the low resolution and high quantization of the test vector combined with the naive chroma upscaling. For the curious, the grey box surrounding the image highlights the 256-square texture that the video frame gets plotted on. Texture dimensions have to be powers of 2.

  Notes on Linux for Dreamcast
  I’ve occasionally dabbled with Linux on my Dreamcast. There’s an ancient (circa 2001) distro based around a build of kernel 2.4.5 out there. But I wanted to try to get something more current compiled. Thus far, I have figured out how to cross compile kernels pretty handily but have been unsuccessful in making them run.

  Here are notes are the compilation portion :
  

  • kernel.org provides a very useful set of cross compiling toolchains
  • get the gcc 4.5.1 cross toolchain for SH-4 (the gcc 4.3.3 one won’t work because the binutils is too old ; it will fail to assemble certain instructions as described in this post)
  • working off of Linux kernel 2.6.37, edit the top-level Makefile ; find the ARCH and CROSS_COMPILE variables and set appropriately :

    ARCH ?= sh
    CROSS_COMPILE ?= /path/to/gcc-4.5.1-nolibc/sh4-linux/bin/sh4-linux-
    

  • $ make dreamcast_defconfig
  • $ make menuconfig ... if any changes to the default configuration are desired
  • manually edit arch/sh/Makefile, changing :

    cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \
            $(call cc-option,-mno-implicit-fp,-m4-nofpu)
    

    to :

    cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \
            $(call cc-option,-mno-implicit-fp)
    

    I.e., remove the '-m4-nofpu' option. According to the gcc man page, this will "Generate code for the SH4 without a floating-point unit." Why this is a default is a mystery since the DC’s SH-4 has an FPU and compilation fails when enabling this option.

  • On that note, I was always under the impression that the DC sported an SH-4 CPU with the model number SH7750. According to this LinuxSH wiki page as well as the Linux kernel help, it actually has an SH7091 variant. This photo of the physical DC hardware corroborates the model number.
  • $ make ... to build a Linux kernel for the Sega Dreamcast

  Running
  So I can compile the kernel but running the kernel (the resulting vmlinux ELF file) gives me trouble. The default kernel ELF file reports an entry point of 0x8c002000. Attempting to upload this through the serial uploading facility I have available to me triggers a system reset almost immediately, probably because that’s the same place that the bootloader calls home. I have attempted to alter the starting address via ’make menuconfig’ -> System type -> Memory management options -> Physical memory start address. This allows the upload to complete but it still does not run. It’s worth noting that the 2.4.5 vmlinux file from the old distribution can be executed when uploaded through the serial loader, and it begins at 0x8c210000.