[FFmpeg-user] ffplay not found
Hi there, Another question, after compiling, I cannot find out the executable ffplay. How to compile it? Thanks. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] ffplay not found
Am 10.10.2014 um 12:33 schrieb Ruoyu: Another question, after compiling, I cannot find out the executable ffplay. How to compile it? ./configure --help signature.asc Description: OpenPGP digital signature ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
[FFmpeg-user] c:v copy - output file is empty, nothing was encoded
hi all, i've been trying to solve a strange problem but i'm not really getting anywhere, so i'm hoping to find an expert here ... basic situation is i have a raw h264 encoded video and want to mux it into an mp4 container. no audio. no re-encoding. so i do: ffmpeg -i snippet.h264 -r 25 -c:v copy snippet.mp4 however, this does not seem to work. error message: Output file is empty, nothing was encoded what am I doing wrong? sample file can be found at: http://s000.tinyupload.com/?file_id=78774328066008732903 thanks peter --- full cmdline + output for reference: crs@vbox:~/data$ ffmpeg -i snippet.h264 -r 25 -c:v copy snippet.mp4 ffmpeg version 1.2.6-7:1.2.6-1~trusty1 Copyright (c) 2000-2014 the FFmpeg developers built on Apr 26 2014 18:52:58 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1) configuration: --arch=amd64 --disable-stripping --enable-avresample --enable-pthreads --enable-runtime-cpudetect --extra-version='7:1.2.6-1~trusty1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static libavutil 52. 18.100 / 52. 18.100 libavcodec 54. 92.100 / 54. 92.100 libavformat54. 63.104 / 54. 63.104 libavdevice53. 5.103 / 53. 5.103 libavfilter 3. 42.103 / 3. 42.103 libswscale 2. 2.100 / 2. 2.100 libswresample 0. 17.102 / 0. 17.102 libpostproc52. 2.100 / 52. 2.100 [h264 @ 0x171c2c0] Stream #0: not enough frames to estimate rate; consider increasing probesize [h264 @ 0x171c2c0] Estimating duration from bitrate, this may be inaccurate Input #0, h264, from 'snippet.h264': Duration: N/A, bitrate: N/A Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 1440x544, 25 fps, 25 tbr, 1200k tbn, 50 tbc Output #0, mp4, to 'snippet.mp4': Metadata: encoder : Lavf54.63.104 Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1440x544, q=2-31, 25 fps, 12800 tbn, 25 tbc Stream mapping: Stream #0:0 - #0:0 (copy) Press [q] to stop, [?] for help frame=0 fps=0.0 q=-1.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead inf% Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used) ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
[FFmpeg-user] merged video fails to play
I have a PNG image and a video file and I want to merge them together into one video file. All of the work should be done under Linux. 1. The PNG image has 1280x720 resolution and I converted it to *.mp4 file using the following command: $ ffmpeg -loop 1 -r 24 -i image.png -t 00:00:05 -vcodec h264 -pix_fmt yuv420p -an image.mp4 2. The video was created via pipe using the following command (pay attention to its last line): $ gource -s 2 --auto-skip-seconds 0.1 --file-idle-time 0 --max-files 500 --multi-sampling --bloom-multiplier 0.9 \ --bloom-intensity 0.4 -1280x720 --stop-at-end --output-ppm-stream - history.xml \ | ffmpeg -y -r 24 -f image2pipe -vcodec ppm -i - -vcodec libx264 -preset ultrafast -pix_fmt yuv420p video.mp4 3. Then I merged them in one video. The list of input files: $ cat files.txt file 'image.mp4' file 'video.mp4' This command was used to concatenate the files: $ ffmpeg -f concat -i files.txt -c:v copy result.mp4 This command printed the following message, not sure if it is important: [concat @ 0xc83b90] Estimating duration from bitrate, this may be inaccurate 4. Finally, I open result video with mplayer. I see the first image for 5 seconds, as expected. Then, when the second video should start, mplayer hangs and the following messages appear in the console: [h264 @ 0x7f8e00260520]deblocking_filter_idc 16 out of range [h264 @ 0x7f8e00260520]decode_slice_header error [h264 @ 0x7f8e00260520]Missing reference picture, default is 65539 [h264 @ 0x7f8e00260520]Missing reference picture, default is 65539 ... [h264 @ 0x7f8e00260520]cabac_init_idc 32 overflow [h264 @ 0x7f8e00260520]decode_slice_header error [h264 @ 0x7f8e00260520]illegal reordering_of_pic_nums_idc [h264 @ 0x7f8e00260520]decode_slice_header error [h264 @ 0x7f8e00260520]abs_diff_pic_num overflow ... [h264 @ 0x7f8e00260520]top block unavailable for requested intra mode at 3 0 [h264 @ 0x7f8e00260520]error while decoding MB 3 0, bytestream 2463 [h264 @ 0x7f8e00260520]number of reference frames (0+5) exceeds max (4; probably corrupt input), discarding one [h264 @ 0x7f8e00260520]Cannot use next picture in error concealment [h264 @ 0x7f8e00260520]concealing 3600 DC, 3600 AC, 3600 MV errors in P frame [h264 @ 0x7f8e00260520]number of reference frames (0+5) exceeds max (4; probably corrupt input), discarding one [h264 @ 0x7f8e00260520]Cannot use next picture in error concealment [h264 @ 0x7f8e00260520]concealing 3571 DC, 3571 AC, 3571 MV errors in P frame ... [h264 @ 0x7f8e00260520]top block unavailable for requested intra4x4 mode -1 at 59 0 ... [h264 @ 0x7f8e00260520]deblocking_filter_idc 3 out of range [h264 @ 0x7f8e00260520]decode_slice_header error [h264 @ 0x7f8e00260520]Missing reference picture, default is 65536 [h264 @ 0x7f8e00260520]Missing reference picture, default is 65536 [h264 @ 0x7f8e00260520]Reference 5 = 4 [h264 @ 0x7f8e00260520]error while decoding MB 49 0, bytestream 50981 [h264 @ 0x7f8e00260520]Cannot use next picture in error concealment [h264 @ 0x7f8e00260520]concealing 3600 DC, 3600 AC, 3600 MV errors in P frame Any ideas what could be wrong? Here is ffmpeg's info about my video files: $ ffmpeg -i image.mp4 [h264 @ 0x8e2f40] Warning: not compiled with thread support, using thread emulation Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'image.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf55.33.100 Duration: 00:00:03.00, start: 0.00, bitrate: 46 kb/s Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1280x720 [SAR 1260:1273 DAR 2240:1273], 41 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default) Metadata: handler_name : VideoHandler $ ffmpeg -i video.mp4 [h264 @ 0x15e7f30] Warning: not compiled with thread support, using thread emulation Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf55.33.100 Duration: 00:19:17.38, start: 0.00, bitrate: 2646 kb/s Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 2645 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default) Metadata: handler_name : VideoHandler $ ffmpeg -i result.mp4 [h264 @ 0x119bf30] Warning: not compiled with thread support, using thread emulation Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'result.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf55.33.100 Duration: 00:19:22.46, start: 0.00, bitrate: 2635 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1260:1273 DAR 2240:1273], 2634 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default) Metadata: handler_name : VideoHandler ffmpeg info: $ ffmpeg version 2.2.7 built on Oct 4 2014 16:07:27 with gcc 4.7.3 (Gentoo 4.7.3-r1 p1.4, pie-0.5.5) configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared
[FFmpeg-user] FFmpeg licensing
Hi, I am developing open-source framework that is licensed under LPGL and it is mainly focused on graphical usage. I am also developing addons for this framework and one of which is video player that uses FFmpeg libraries. My question is, if I compile shared FFmpeg libraries *without* parameters --enable-gpl and --enable-nonfree to make it LGPL compatible, then am I legally allowed to make DDLs available on framework`s git repository? If I understood right, I also need to make the source code available on same repository from which DLLs were compiled? My last question. I am also making closed-source app that is using my framework also with addon that uses FFmpeg libraries and clients will not be charged for this app. In order to ship the application I also need to ship FFmpeg DLLs with exe in order to make app properly working. I am only using shared libraries, not static. Do I need to include FFmpeg lib source code into application? If yes, would it be OK if I only provided link to repository (in which DLLs with source code and my framework are) inside app`s readmy file? Thank you. with regards, Matus Novak ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
[FFmpeg-user] Help : Stream video using FFMPEG from client side
I have setup a ffmpeg and I'm streaming a file from localhost to rtmp server. What i need is to stream a file from the client PC. i.e., I am hosting ffmpeg on the server and i need my web application to streams the file from the client PC to the rtmp server. Is it possible? I don't want to upload the entire file to my server because sometime the files are from a live feed (mixer studio outputs) -- VENKY ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] FFmpeg licensing
Am 09.10.2014 um 18:07 schrieb Matus Novak: I am developing open-source framework that is licensed under LPGL and it is mainly focused on graphical usage. I am also developing addons for this framework and one of which is video player that uses FFmpeg libraries. My question is, if I compile shared FFmpeg libraries *without* parameters --enable-gpl and --enable-nonfree to make it LGPL compatible, then am I legally allowed to make DDLs available on framework`s git repository? If I understood right, I also need to make the source code available on same repository from which DLLs were compiled? if you use --enable-gpl you need to follow the GPL if you use --enable-nonfree the binary is *undistributeable* at the end you need to consult a laywer, this is the wrong place there is a good reason why you find only sources on the official page patent issues and so on. signature.asc Description: OpenPGP digital signature ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] merged video fails to play
a b microspam at list.ru writes: $ ffmpeg -loop 1 -r 24 -i image.png -t 00:00:05 -vcodec h264 -pix_fmt yuv420p -an image.mp4 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'image.mp4': Duration: 00:00:03.00, start: 0.00, bitrate: 46 kb/s Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) It is very unlikely that above command (that requests 4:2:0) was used to produce the input file (that has 4:4:4). You can only use concat on two videos with the same (very similar) properties, ie you need the same pix_fmt for both input videos. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Right audio channel shifted
Alex doenerbudenchef-at-yahoo.de at ffmpeg.org writes: [...] Since this is apparently not clear: This is not the ffmbc user mailing list. (FFmpeg != ffmbc) Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Right audio channel shifted
Thats absolutely clear, but I want to use ffmpeg to solve that issue. Alex -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/Right-audio-channel-shifted-tp4667730p4667732.html Sent from the FFmpeg-users mailing list archive at Nabble.com. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] ffplay not found
Thanks. It works! On 2014年10月10日 19:36, Moritz Barsnick wrote: On Fri, Oct 10, 2014 at 13:09:45 +0200, Reindl Harald wrote: Another question, after compiling, I cannot find out the executable ffplay. How to compile it? ./configure --help What that doesn't tell you though is that you need libsdl, and it needs to be found, in order to have ffplay included in the build. You need SDL-devel or libsdl1.2-dev or whatever it may be called on your distribution. You also need some other libs, notably X11 libs, as the note in this document hints: https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#GettheDependencies [...] ffplay and x11 dependencies: libsdl1.2-dev libva-dev libvdpau-dev libx11-dev libxext-dev libxfixes-dev (These package names are for Ubuntu. The RedHat/Fedora/CentOS wiki page isn't so clear about this.) Moritz ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
