June 2015 - ffmpeg-user - lists.ffmpeg.org

Linux Static Builds ffmpeg version：2.7.1 can't grab audio when use --video4linux2 /dev/video0 to grab
by zq＠ri-guard.com 30 Jun '15

30 Jun '15

Dear ffmpeg: I'm a new user of ffmpeg,may I ask a qustion? these days when i download linux static builds version 2.7.1 to grab audio in this process ffmpeg -f video4linux2 -i /dev/video0 -vcodec mpeg4 -b 2000k -r 30 /home/test.avi ,failed!! error print:[video4linux2,v4l2 @ 0xb0d4e00] ioctl(VIDIOC_G_PARM): Inappropriate ioctl for device /dev/video0: Inappropriate ioctl for device I want to know the reson,whish to recive your answner! best whishes!! zq(a)ri-guard.com

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ts random access extremely slow
by 我是科学家 30 Jun '15

30 Jun '15

I am dealing with a ts file, following is ffprobe output: ffprobe version N-45589-gb6a0b8b- http://johnvansickle.com/ffmpeg/ Copyright (c) 2007-2014 the FFmpeg developers built on Aug 28 2014 02:30:32 with gcc 4.8 (Debian 4.8.3-9) configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --disable-ffserver --enable-libass --enable-gnutls --cc=gcc-4.8 libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 0.101 / 56. 0.101 libavformat 56. 3.100 / 56. 3.100 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 0.103 / 5. 0.103 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100 [hevc @ 0x298b4a0] No start code is found. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] No start code is found. Last message repeated 2 times [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] No start code is found. Last message repeated 7 times [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] No start code is found. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [hevc @ 0x298b4a0] PPS id out of range: 0 [hevc @ 0x298b4a0] Error parsing NAL unit #2. [mpegts @ 0x2987560] decoding for stream 0 failed [mpegts @ 0x2987560] Could not find codec parameters for stream 0 (Video: hevc ([36][0][0][0] / 0x0024)): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #0, mpegts, from 'mp4box-jlsj-4k.ts': Duration: 00:02:15.00, start: 0.001111, bitrate: 31116 kb/s Program 1 Stream #0:0[0x65]: Video: hevc ([36][0][0][0] / 0x0024), 25 tbr, 90k tbn, 90k tbc Stream #0:1[0x66]: Audio: eac3, 48000 Hz, 5.1(side), fltp, 448 kb/s The problem I'm having is that seeking on this file is extremely slow, it took more than 1 minute to complete seek operation. This ts file is 500MB in size, has 2,793,052 ts packets, 2750469 video packets, 137 video packets with random_acces_indicator. What's the possible reason for the slow seek? Why is ffmpeg reporting these errors? What do I need to do for the analysis?

1 0

FFprobe does not set duration
by Wesley Wen 30 Jun '15

30 Jun '15

Hi, I tried to use FFprobe to get duration of the file, but failed. Here is my command (with debug information) and console output. $ffprobe -i 464223_m.mpg -show_format -loglevel debug ffprobe version git-2015-06-12-4af9eb4 Copyright (c) 2007-2015 the FFmpeg developers built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn) configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-ffplay --enable-libfdk-aac --enable-libx265 --enable-nonfree --enable-vda libavutil 54. 27.100 / 54. 27.100 libavcodec 56. 41.100 / 56. 41.100 libavformat 56. 36.100 / 56. 36.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 16.101 / 5. 16.101 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.100 / 1. 2.100 libpostproc 53. 3.100 / 53. 3.100 [mpeg @ 0x7fbf9b802a00] Format mpeg probed with size=2048 and score=26 [mpeg @ 0x7fbf9b802a00] Before avformat_find_stream_info() pos: 0 bytes read:32768 seeks:0 [mpeg @ 0x7fbf9b802a00] probing stream 0 pp:2500 [mpeg @ 0x7fbf9b802a00] Probe with size=1994, packets=1 detected mpegvideo with score=25 [mpeg @ 0x7fbf9b802a00] probed stream 0 [mpeg @ 0x7fbf9b802a00] Probe buffer size limit of 5000000 bytes reached [mpeg @ 0x7fbf9b802a00] stream 0 : no PTS found at end of file, duration not set [mpeg @ 0x7fbf9b802a00] stream 1 : no PTS found at end of file, duration not set [mpeg @ 0x7fbf9b802a00] After avformat_find_stream_info() pos: 0 bytes read:12927344 seeks:6 frames:337 Input #0, mpeg, from '464223_m.mpg': Duration: N/A, start: 0.262000, bitrate: N/A Stream #0:0[0x1e0], 145, 1/90000: Video: mpeg2video (Main), 1 reference frame, yuv420p(tv, left), 720x480 [SAR 32:27 DAR 16:9], 1001/60000, 8000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x1c0], 192, 1/90000: Audio: mp2, 48000 Hz, stereo, s16p, 384 kb/s detected 4 logical cores [FORMAT] filename=464223_m.mpg nb_streams=2 nb_programs=0 format_name=mpeg format_long_name=MPEG-PS (MPEG-2 Program Stream) start_time=0.262000 duration=N/A size=1565743108 bit_rate=N/A probe_score=26 [/FORMAT] [AVIOContext @ 0x7fbf9af00140] Statistics: 12927344 bytes read, 6 seeks The debug log told me that no PTS found at end of file, and therefore duration was not set. So I tried to dump every frame with -show_frames option, and I can see there are PTS values for last audio and video samples. $ffprobe -i 464223_m.mpg -show_frames -loglevel debug (... keep the last few audio & video samples ...) [FRAME] media_type=video stream_index=0 key_frame=0 pkt_pts=37939458 pkt_pts_time=421.549533 pkt_dts=37939458 pkt_dts_time=421.549533 best_effort_timestamp=37939458 best_effort_timestamp_time=421.549533 pkt_duration=3003 pkt_duration_time=0.033367 pkt_pos=452780064 pkt_size=15296 width=720 height=480 pix_fmt=yuv420p sample_aspect_ratio=32:27 pict_type=B coded_picture_number=12627 display_picture_number=0 interlaced_frame=1 top_field_first=1 repeat_pict=0 [/FRAME] [FRAME] media_type=audio stream_index=1 key_frame=1 pkt_pts=37931580 pkt_pts_time=421.462000 pkt_dts=37931580 pkt_dts_time=421.462000 best_effort_timestamp=37931580 best_effort_timestamp_time=421.462000 pkt_duration=2160 pkt_duration_time=0.024000 pkt_pos=N/A pkt_size=1152 sample_fmt=s16p nb_samples=1152 channels=2 channel_layout=stereo [/FRAME] [FRAME] media_type=audio stream_index=1 key_frame=1 pkt_pts=37933740 pkt_pts_time=421.486000 pkt_dts=37933740 pkt_dts_time=421.486000 best_effort_timestamp=37933740 best_effort_timestamp_time=421.486000 pkt_duration=2160 pkt_duration_time=0.024000 pkt_pos=452835360 pkt_size=1152 sample_fmt=s16p nb_samples=1152 channels=2 channel_layout=stereo [/FRAME] [FRAME] media_type=video stream_index=0 key_frame=0 pkt_pts=37942461 pkt_pts_time=421.582900 pkt_dts=37942461 pkt_dts_time=421.582900 best_effort_timestamp=37942461 best_effort_timestamp_time=421.582900 pkt_duration=3003 pkt_duration_time=0.033367 pkt_pos=452712480 pkt_size=50168 width=720 height=480 pix_fmt=yuv420p sample_aspect_ratio=32:27 pict_type=P coded_picture_number=12625 display_picture_number=0 interlaced_frame=1 top_field_first=1 repeat_pict=0 [/FRAME] [FRAME] media_type=video stream_index=0 key_frame=0 pkt_pts=37945464 pkt_pts_time=421.616267 pkt_dts=37945464 pkt_dts_time=421.616267 best_effort_timestamp=37945464 best_effort_timestamp_time=421.616267 pkt_duration=3003 pkt_duration_time=0.033367 pkt_pos=452851744 pkt_size=15989 width=720 height=480 pix_fmt=yuv420p sample_aspect_ratio=32:27 pict_type=B coded_picture_number=12629 display_picture_number=0 interlaced_frame=1 top_field_first=1 repeat_pict=0 [/FRAME] [FRAME] media_type=audio stream_index=1 key_frame=1 pkt_pts=37935900 pkt_pts_time=421.510000 pkt_dts=37935900 pkt_dts_time=421.510000 best_effort_timestamp=37935900 best_effort_timestamp_time=421.510000 pkt_duration=2160 pkt_duration_time=0.024000 pkt_pos=N/A pkt_size=1152 sample_fmt=s16p nb_samples=1152 channels=2 channel_layout=stereo [/FRAME] [FRAME] media_type=audio stream_index=1 key_frame=1 pkt_pts=37938060 pkt_pts_time=421.534000 pkt_dts=37938060 pkt_dts_time=421.534000 best_effort_timestamp=37938060 best_effort_timestamp_time=421.534000 pkt_duration=2160 pkt_duration_time=0.024000 pkt_pos=452886560 pkt_size=1152 sample_fmt=s16p nb_samples=1152 channels=2 channel_layout=stereo [/FRAME] [FRAME] media_type=audio stream_index=1 key_frame=1 pkt_pts=37940220 pkt_pts_time=421.558000 pkt_dts=37940220 pkt_dts_time=421.558000 best_effort_timestamp=37940220 best_effort_timestamp_time=421.558000 pkt_duration=2160 pkt_duration_time=0.024000 pkt_pos=452937760 pkt_size=1152 sample_fmt=s16p nb_samples=1152 channels=2 channel_layout=stereo [/FRAME] [FRAME] media_type=audio stream_index=1 key_frame=1 pkt_pts=37942380 pkt_pts_time=421.582000 pkt_dts=37942380 pkt_dts_time=421.582000 best_effort_timestamp=37942380 best_effort_timestamp_time=421.582000 pkt_duration=2160 pkt_duration_time=0.024000 pkt_pos=N/A pkt_size=1152 sample_fmt=s16p nb_samples=1152 channels=2 channel_layout=stereo [/FRAME] [FRAME] media_type=audio stream_index=1 key_frame=1 pkt_pts=37944540 pkt_pts_time=421.606000 pkt_dts=37944540 pkt_dts_time=421.606000 best_effort_timestamp=37944540 best_effort_timestamp_time=421.606000 pkt_duration=2160 pkt_duration_time=0.024000 pkt_pos=452964384 pkt_size=1152 sample_fmt=s16p nb_samples=1152 channels=2 channel_layout=stereo [/FRAME] [FRAME] media_type=video stream_index=0 key_frame=0 pkt_pts=37948467 pkt_pts_time=421.649633 pkt_dts=N/A pkt_dts_time=N/A best_effort_timestamp=37948467 best_effort_timestamp_time=421.649633 pkt_duration=3003 pkt_duration_time=0.033367 pkt_pos=452798496 pkt_size=49492 width=720 height=480 pix_fmt=yuv420p sample_aspect_ratio=32:27 pict_type=P coded_picture_number=12628 display_picture_number=0 interlaced_frame=1 top_field_first=1 repeat_pict=0 [/FRAME] [AVIOContext @ 0x7feafb521500] Statistics: 466043248 bytes read, 6 seeks I'm not sure if this is FFprobe issue or content issue. If content issue, how could I do further investigation and relay the information to content provider?. Thanks, Wesley

2 2

frame accurate seek / trim in point based on timecode?
by James Heliker 30 Jun '15

30 Jun '15

Hi All - I've been Googling around for the last few hours, and I can't seem to find a definitive answer. I need to be able to reliably set my in point for ProRes .mov files, at exactly 01:00:00;00. Luckily, the sources seem to consistently begin at 00:57:30;00, as such so far the below works, however, I would feel much better about something actually using the timecode as a reference. Is this possible with FFmpeg? ffmpeg -i sample.mov -ss 00:02:30.000 -pix_fmt yuv422p -vcodec mpeg2video -non_linear_quant 1 -flags +ildct+ilme -top 1 -dc 10 -intra_vlc 1 -qmax 3 -lmin "1*QP2LAMBDA" -vtag xd5c -rc_max_vbv_use 1 -rc_min_vbv_use 1 -g 12 -b:v 50000k -minrate 50000k -maxrate 50000k -bufsize 8000k -acodec pcm_s16le -ar 48000 -bf 2 -ac 2 sample.mxf ffmpeg version 2.5.2 Copyright (c) 2000-2014 the FFmpeg developers built on Dec 30 2014 17:13:24 with gcc 4.9.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca -- enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable- libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enab le-zlib (truncated CLI output as it isn't really relevant here) Thanks! -- Kind Regards, - James Heliker

1 0

What are the the data and attachment stream type?
by Guofeng Zhang 29 Jun '15

29 Jun '15

Hi, The book "FFmpeg Basic" described that FFmpeg recognizes 5 stream types: audio (a), attachment (t), data (d), subtitle (s) and video (v). I do not understand what the data and attachment type specified and what they are used for. Is there any introduction about data and attachment stream type on the internet? Thanks for your help! Guofeng

2 1

ffmpeg auto trailer creation script
by ivosuvee＠gmail.com 29 Jun '15

29 Jun '15

Hi, I have a server with the following specs: Processor: E3-1240v3 (3.4Ghz Quad Core + HT) Memory Type: 4GB DDR3-1333 ECC UNBUFFERED Memory Amount: 2 Hard Drive Slot 1: 1TB SATA II Enterprise Grade (3.5") Hard Drive Slot 2: 2TB SATA II Enterprise Grade (3.5") Hard Drive Slot 3: 2TB SATA II Enterprise Grade (3.5") Windows Server 2008 Standard, but of course you can switch it to Linux. It's on contract and currently sitting idle doing nothing. I'd like to user this server to do some "automatic hands-free" video editing. I regularly get 1000s of SD video files that I would like to encode in batch. My videos are anywhere between 15 to 45 min and depending on the input length, I'd like to have short clips made from them, like trailers. But hands-free. Meaning, I would just tell the script: - where the input folder is - where my watermark image is - where the output folder is For example: Any video over 30 min. should be made into a 13 min. trailer clip with watermark. It'll probably be easier to have each bit taken from a set point in the main video? For example take each bit from the next 20% of the total video length? So if we want this 13 min. trailer to consist of 5 different parts of the main video, this means 13 min divided by 5. Which is about 2 min and 36 seconds long. So the script would do something like this: 1) take 2 min and 26 seconds from the beginning of the video (skipping the first minute) 2) take 02:26 starting from 20% into the video 3) take 02:26 starting from 40% into the video 4) take 02:26 starting from 60% into the video 5) take 02:26 starting from 80% into the video and join all these clips together into 1 trailer clip with a watermark. ffmpeg can perform fade out and fade in. I would like to use these fades as a transition. Just a quick fade so that joining the sub-clips doesn't seem too disrupting. For example, we can perform a fade in and fade out of about 0.3 seconds at the end and/of beginning of each clip when cutting them. Then the end clip will have this fade/transition when joining. Videos of 25-30 min in length should be made into a 12 min clip (or bigger but no bigger than 13 min) Videos of 20-25 min in length should be made into an 8 min clip (or bigger but no bigger than 10 min) Videos of 15-20 min in length should be made into a 7 min clip (or bigger but no bigger than 9 min) Let me know if something like this can be set up? What the cost would be to have it developed. And how long it would take? You can contact me on Skype: screwivo But I'm more of an email person. Thank you :) Ivo

1 0

make installcl is unable to create an executable file.
by Simin Ghesmati 28 Jun '15

28 Jun '15

Dear Sir/Madam I'd like to run the following, but I received the error (the attached error). Could you tell me what should I do? regards, Simin Ghesmati, instruction: Open *VS2013 x86 Native Tools Command Prompt.bat* (should be in *\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\Tools\Shortcuts\* folder), go to *D:\msys64\* and launch *msys2_shell.bat*, there run PATH="/c/Program Files (x86)/Microsoft Visual Studio 12.0/VC/BIN:$PATH" cd /d/TBuild/Libraries/ffmpeg-2.6.3 pacman -S msys/make pacman -S mingw64/mingw-w64-x86_64-opus pacman -S pkg-config PKG_CONFIG_PATH="/mingw64/lib/pkgconfig:$PKG_CONFIG_PATH" ./configure --toolchain=msvc --disable-programs --disable-everything --enable-libopus --enable-decoder=aac --enable-decoder=aac_latm --enable-decoder=aasc --enable-decoder=mp1 --enable-decoder=mp1float --enable-decoder=mp2 --enable-decoder=mp2float --enable-decoder=mp3 --enable-decoder=mp3adu --enable-decoder=mp3adufloat --enable-decoder=mp3float --enable-decoder=mp3on4 --enable-decoder=mp3on4float --enable-decoder=wavpack --enable-decoder=opus --enable-decoder=vorbis --enable-decoder=wmalossless --enable-decoder=wmapro --enable-decoder=wmav1 --enable-decoder=wmav2 --enable-decoder=wmavoice --enable-encoder=libopus --enable-parser=aac --enable-parser=aac_latm --enable-parser=mpegaudio --enable-parser=opus --enable-parser=vorbis --enable-demuxer=aac --enable-demuxer=wav --enable-demuxer=mp3 --enable-demuxer=ogg --enable-demuxer=mov --enable-muxer=ogg --enable-muxer=opus --extra-ldflags="-libpath:/d/TBuild/Libraries/opus/win32/VS2010/Win32/Release celt.lib silk_common.lib silk_float.lib" make make install but I receive this error: DRLB@Simin-PC MSYS ~ $ PATH="/d/Program Files (x86)/ VS 2013/VC/BIN:$PATH" DRLB@Simin-PC MSYS ~ $ DRLB@Simin-PC MSYS ~ $ cd /d/TBuild/Libraries/ffmpeg-2.6.3 DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ pacman -S msys/make resolving dependencies... looking for conflicting packages... Packages (1) make-4.1-4 Total Download Size: 0.38 MiB Total Installed Size: 1.17 MiB :: Proceed with installation? [Y/n] y DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ pacman -S msys/make resolving dependencies... looking for conflicting packages... Packages (1) make-4.1-4 Total Download Size: 0.38 MiB Total Installed Size: 1.17 MiB :: Proceed with installation? [Y/n] Y :: Retrieving packages ... make-4.1-4-i686 385.6 KiB 30.7K/s 00:13 [#####################] 100% (1/1) checking keys in keyring [#####################] 100% (1/1) checking package integrity [#####################] 100% (1/1) loading package files [#####################] 100% (1/1) checking for file conflicts [#####################] 100% (1/1) checking available disk space [#####################] 100% (1/1) installing make [#####################] 100% DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ pacman -S mingw64/mingw-w64-x86_64-opus resolving dependencies... looking for conflicting packages... Packages (1) mingw-w64-x86_64-opus-1.1-2 Total Download Size: 0.28 MiB Total Installed Size: 1.70 MiB :: Proceed with installation? [Y/n] Y :: Retrieving packages ... mingw-w64-x86_64-op... 290.6 KiB 30.7K/s 00:09 [#####################] 100% (1/1) checking keys in keyring [#####################] 100% (1/1) checking package integrity [#####################] 100% (1/1) loading package files [#####################] 100% (1/1) checking for file conflicts [#####################] 100% (1/1) checking available disk space [#####################] 100% (1/1) installing mingw-w64-x86_64-opus [#####################] 100% DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ pacman -S pkg-config resolving dependencies... looking for conflicting packages... Packages (5) glib2-2.42.0-1 libgcrypt-1.6.3-1 libgpg-error-1.19-1 libxslt-1.1.28-7 pkg-config-0.28-2 Total Download Size: 2.35 MiB Total Installed Size: 11.71 MiB :: Proceed with installation? [Y/n] Y :: Retrieving packages ... libgpg-error-1.19-1... 91.9 KiB 31.6K/s 00:03 [#####################] 100% libgcrypt-1.6.3-1-i686 347.9 KiB 23.5K/s 00:15 [#####################] 100% libxslt-1.1.28-7-i686 126.6 KiB 21.2K/s 00:06 [#####################] 100% glib2-2.42.0-1-i686 1686.6 KiB 22.9K/s 01:14 [#####################] 100% pkg-config-0.28-2-i686 158.2 KiB 24.4K/s 00:06 [#####################] 100% (5/5) checking keys in keyring [#####################] 100% (5/5) checking package integrity [#####################] 100% (5/5) loading package files [#####################] 100% (5/5) checking for file conflicts [#####################] 100% (5/5) checking available disk space [#####################] 100% (1/5) installing libgpg-error [#####################] 100% (2/5) installing libgcrypt [#####################] 100% (3/5) installing libxslt [#####################] 100% (4/5) installing glib2 [#####################] 100% Optional dependencies for glib2 python2: for gdbus-codegen and gtester-report (5/5) installing pkg-config [#####################] 100% DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ PKG_CONFIG_PATH="/mingw64/lib/pkgconfig:$PKG_CONFIG_PATH" DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ ./configure --toolchain=msvc --disable-programs --disable-everything --enable- libopus --enable-decoder=aac --enable-decoder=aac_latm --enable-decoder=aasc --e nable-decoder=mp1 --enable-decoder=mp1float --enable-decoder=mp2 --enable-decode r=mp2float --enable-decoder=mp3 --enable-decoder=mp3adu --enable-decoder=mp3aduf loat --enable-decoder=mp3float --enable-decoder=mp3on4 --enable-decoder=mp3on4fl oat --enable-decoder=wavpack --enable-decoder=opus --enable-decoder=vorbis --ena ble-decoder=wmalossless --enable-decoder=wmapro --enable-decoder=wmav1 --enable- decoder=wmav2 --enable-decoder=wmavoice --enable-encoder=libopus --enable-parser =aac --enable-parser=aac_latm --enable-parser=mpegaudio --enable-parser=opus --e nable-parser=vorbis --enable-demuxer=aac --enable-demuxer=wav --enable-demuxer=m p3 --enable-demuxer=ogg --enable-demuxer=mov --enable-muxer=ogg --enable-muxer=o pus --extra-ldflags="-libpath:/d/TBuild/Libraries/opus/win32/VS2010/Win32/Releas e celt.lib silk_common.lib silk_float.lib" make make installcl is unable to create an executable file. If cl is a cross-compiler, use the --enable-cross-compile option. Only do this if you know what cross compiling means. C compiler test failed. If you think configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to the ffmpeg-user(a)ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file "config.log" produced by configure as this will help solve the problem. DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ make Makefile:2: config.mak: No such file or directory Makefile:59: /common.mak: No such file or directory Makefile:100: /libavutil/Makefile: No such file or directory Makefile:100: /library.mak: No such file or directory Makefile:102: /doc/Makefile: No such file or directory Makefile:185: /tests/Makefile: No such file or directory make: *** No rule to make target '/tests/Makefile'. Stop. DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ make install Makefile:2: config.mak: No such file or directory Makefile:59: /common.mak: No such file or directory Makefile:100: /libavutil/Makefile: No such file or directory Makefile:100: /library.mak: No such file or directory Makefile:102: /doc/Makefile: No such file or directory Makefile:185: /tests/Makefile: No such file or directory make: *** No rule to make target '/tests/Makefile'. Stop. DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 $ PKG_CONFIG_PATH="/mingw64/lib/pkgconfig:$PKG_CONFIG_PATH" DRLB@Simin-PC MSYS /d/TBuild/Libraries/ffmpeg-2.6.3 -- Regards, ============ Simin Ghesmati *Simin.Ghesmati(a)gmail.com <Simin.Ghesmati(a)gmail.com>*

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Regarding removal of encryption and crypto support from ffmpeg binary
by Sanjay Jadhav 28 Jun '15

28 Jun '15

Hi Team, I am using ffmpeg.exe to convert video files from one format to another format. But due to the encryption algorithms present in ffmpeg.exe this exe cannot be used in some of the countries. Hence to remove the crypto and encryption support I am using below command to configure ffmpeg for making exe. Configure -disable-protocol=crypto --enable-ffmpeg And then make command. With this I can generate the exe successfully. But when this exe is used on the server which do not have mingw it throws below error. The program can't start because libwinpthread-1.dll is missing from your computer. Try reinstalling the program to fix this problem. Note I am using latest version of mingw to compile the code. When I put the libwinpthread-1.dll where my ffmpeg.exe is placed then it works fine. Queries: 1.Is there a way to remove dependency of this libwinpthread-1.dll ? 2.After disabling crypto protocol can we ensure that encryption functionality is completely removed from the generated exe? Thanks and Regards Sanjay Jadhav

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How to add alpha channel to normal png image
by qw 28 Jun '15

28 Jun '15

Hi, PNG format supports alpha channel, but some png images don't have alpha channel. How to add alpha channel to those png images and set alpha value? Thanks! B.R. Andrew

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ffmpeg reports no colorkey filter
by qw 28 Jun '15

28 Jun '15

Hi, I use the below command to run colorkey filter, but ffmpeg report there is no colorkey filter: [root@localhost ffmpegOverlay]# ffmpeg -i ./transparent_3.png -vf colorkey=green ./transparent_3_test1.png ffmpeg version 2.7.1 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-11) configuration: --enable-gpl --enable-libx264 libavutil 54. 27.100 / 54. 27.100 libavcodec 56. 41.100 / 56. 41.100 libavformat 56. 36.100 / 56. 36.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 16.101 / 5. 16.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.100 / 1. 2.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, png_pipe, from './transparent_3.png': Duration: N/A, bitrate: N/A Stream #0:0: Video: png, rgba(pc), 256x256, 25 tbr, 25 tbn, 25 tbc [AVFilterGraph @ 0x1d1e900] No such filter: 'colorkey' Error opening filters! I find ffmpeg supports colorkey filter as shown below. But why does ffmpeg report there is no colorkey filter? http://ffmpeg.org/ffmpeg-filters.html#colorkey Thanks! Andrew

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