Running it with -threads 1 in the terminal works but with PHP I get the same error:
ffmpeg version 4.0.1-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2018 the FFmpeg developers built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516 configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg libavutil 56. 14.100 / 56. 14.100 libavcodec 58. 18.100 / 58. 18.100 libavformat 58. 12.100 / 58. 12.100 libavdevice 58. 3.100 / 58. 3.100 libavfilter 7. 16.100 / 7. 16.100 libswscale 5. 1.100 / 5. 1.100 libswresample 3. 1.100 / 3. 1.100 libpostproc 55. 1.100 / 55. 1.100 Splitting the commandline. Reading option '-threads' ... matched as AVOption 'threads' with argument '1'. Reading option '-i' ... matched as input url with argument '/home2/public_html/ffmpeg/SampleVideo.mp4'. Reading option '-ss' ... matched as option 'ss' (set the start time offset) with argument '00:00:01.000'. Reading option '-vframes' ... matched as option 'vframes' (set the number of video frames to output) with argument '1'. Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'. Reading option '/home2/public_html/ffmpeg/SampleVideo.png' ... matched as output url. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Finished splitting the commandline. Parsing a group of options: global . Applying option y (overwrite output files) with argument 1. Applying option loglevel (set logging level) with argument debug. Successfully parsed a group of options. Parsing a group of options: input url /home2/public_html/ffmpeg/SampleVideo.mp4. Successfully parsed a group of options. Opening an input file: /home2/public_html/ffmpeg/SampleVideo.mp4. [NULL @ 0x501fcc0] Opening '/home2/public_html/ffmpeg/SampleVideo.mp4' for reading [file @ 0x50205c0] Setting default whitelist 'file,crypto' [mov,mp4,m4a,3gp,3g2,mj2 @ 0x501fcc0] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x501fcc0] ISO: File Type Major Brand: mp42 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x501fcc0] Unknown dref type 0x206c7275 size 12 Last message repeated 1 times [mov,mp4,m4a,3gp,3g2,mj2 @ 0x501fcc0] Before avformat_find_stream_info() pos: 383523 bytes read:36359 seeks:1 nb_streams:2 [h264 @ 0x5021600] nal_unit_type: 7, nal_ref_idc: 3 [h264 @ 0x5021600] nal_unit_type: 8, nal_ref_idc: 3 [h264 @ 0x5021600] nal_unit_type: 6, nal_ref_idc: 0 [h264 @ 0x5021600] nal_unit_type: 5, nal_ref_idc: 3 [h264 @ 0x5021600] Format yuv420p chosen by get_format(). [h264 @ 0x5021600] Reinit context to 560x320, pix_fmt: yuv420p [h264 @ 0x5021600] nal_unit_type: 1, nal_ref_idc: 2 Last message repeated 2 times [aac @ 0x50277c0] skip whole frame, skip left: 0 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x501fcc0] All info found [mov,mp4,m4a,3gp,3g2,mj2 @ 0x501fcc0] After avformat_find_stream_info() pos: 28292 bytes read:69127 seeks:2 frames:5 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home2/public_html/ffmpeg/SampleVideo.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42isomavc1 creation_time : 2010-03-20T21:29:11.000000Z encoder : HandBrake 0.9.4 2009112300 Duration: 00:00:05.57, start: 0.000000, bitrate: 551 kb/s Stream #0:0(und), 4, 1/90000: Video: h264 (Constrained Baseline), 1 reference frame (avc1 / 0x31637661), yuv420p(tv, bt709, left), 560x320, 0/1, 465 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default) Metadata: creation_time : 2010-03-20T21:29:11.000000Z encoder : JVT/AVC Coding Stream #0:1(eng), 1, 1/48000: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 83 kb/s (default) Metadata: creation_time : 2010-03-20T21:29:11.000000Z Successfully opened the file. Parsing a group of options: output url /home2/public_html/ffmpeg/SampleVideo.png. Applying option ss (set the start time offset) with argument 00:00:01.000. Applying option vframes (set the number of video frames to output) with argument 1. Successfully parsed a group of options. Opening an output file: /home2/public_html/ffmpeg/SampleVideo.png. Successfully opened the file. [h264 @ 0x5139940] nal_unit_type: 7, nal_ref_idc: 3 [h264 @ 0x5139940] nal_unit_type: 8, nal_ref_idc: 3 Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> png (native)) Press [q] to stop, [?] for help cur_dts is invalid (this is harmless if it occurs once at the start per stream) [h264 @ 0x5139940] nal_unit_type: 6, nal_ref_idc: 0 [h264 @ 0x5139940] nal_unit_type: 5, nal_ref_idc: 3 [h264 @ 0x5139940] Format yuv420p chosen by get_format(). [h264 @ 0x5139940] Reinit context to 560x320, pix_fmt: yuv420p detected 20 logical cores [graph 0 input from stream 0:0 @ 0x5048300] Setting 'video_size' to value '560x320' [graph 0 input from stream 0:0 @ 0x5048300] Setting 'pix_fmt' to value '0' [graph 0 input from stream 0:0 @ 0x5048300] Setting 'time_base' to value '1/90000' [graph 0 input from stream 0:0 @ 0x5048300] Setting 'pixel_aspect' to value '0/1' [graph 0 input from stream 0:0 @ 0x5048300] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 0x5048300] Setting 'frame_rate' to value '30/1' [graph 0 input from stream 0:0 @ 0x5048300] w:560 h:320 pixfmt:yuv420p tb:1/90000 fr:30/1 sar:0/1 sws_param:flags=2 [format @ 0x5105c80] Setting 'pix_fmts' to value 'rgb24|rgba|rgb48be|rgba64be|pal8|gray|ya8|gray16be|ya16be|monob' [auto_scaler_0 @ 0x5049e40] Setting 'flags' to value 'bicubic' [auto_scaler_0 @ 0x5049e40] w:iw h:ih flags:'bicubic' interl:0 [format @ 0x5105c80] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_null_0' and the filter 'format' [AVFilterGraph @ 0x5105b80] query_formats: 5 queried, 3 merged, 1 already done, 0 delayed [auto_scaler_0 @ 0x5049e40] picking rgb24 out of 9 ref:yuv420p alpha:0 [auto_scaler_0 @ 0x5049e40] w:560 h:320 fmt:yuv420p sar:0/1 -> w:560 h:320 fmt:rgb24 sar:0/1 flags:0x4 [png @ 0x504c0c0] ff_frame_thread_encoder_init failed Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height [AVIOContext @ 0x50289c0] Statistics: 69127 bytes read, 2 seeks Conversion failed! ________________________________ From: ffmpeg-user <ffmpeg-user-boun...@ffmpeg.org> on behalf of Carl Eugen Hoyos <ceffm...@gmail.com> Sent: Wednesday, 27 June 2018 7:10 AM To: FFmpeg user questions Subject: Re: [FFmpeg-user] ff_frame_thread_encoder_init failed when run via PHP exec 2018-06-23 13:39 GMT+02:00, rwilkin <robertwilkin1...@hotmail.com>: > I am trying to create a thumbnail image from a video with PHP. This is the > command I am using: > > "/home2/public_html/ffmpeg/ffmpeg" -i > "/home2/public_html/ffmpeg/SampleVideo.mp4" -ss 00:00:01.000 -vframes 1 -y > "/home2/public_html/ffmpeg/SampleVideo.png" -loglevel debug 2> > "/home2/public_html/ffmpeg/wildlife.txt" Assuming the issue is a limit on the number of threads (and you cannot increase the number), try: $ ffmpeg -threads 1 -i SampleVideo.mp4 -ss 1 ... Test different numbers. Carl Eugen _______________________________________________ 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".