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

Flip in sws_scale
by romulo.fernandes＠gmail.com 11 Mar '16

11 Mar '16

Hello, I'm using libswscale to scale and convert pixel format from frames that I capture from the screen. In my windows build the frames that I capture are in DIB format. I'm using FFMPEG SVN rev 16437. Calling sws_scale normally I get the image correctly, except that it's vertically flipped. If I change the srcSliceY from 0 to srcHeight and srcSliceH from srcHeight to 0, I get a grey image (with correct dimensions). If I keep the srcSliceY in 0 and change srcSliceH from srcHeight to -srcHeight, I also get that grey image. Is there a way to make sws_scale flip the image for me ?

8 11

Howto compile ffplay.c in seperate directory with my own svn-version of ffmpeg
by tps＠netmaster.dk 23 Feb '16

23 Feb '16

Dear All I have compiled svn-version of ffmpeg. I only do configure and make. I do not do make install because I don't want this svn-version of ffmpeg to overwrite the 'official' Ubuntu version of ffpeg that is also on the host. Now I want to compile my own version of ffplay.c so I create a directory ffplay at the same level as the svn ffmpeg-directory. I copy ffplay.c from ffmpeg to ffplay. Now what gcc options should I use to compile ffplay.c? I tried with this but got tons of errors: gcc -o ffplay ffplay.c -I../ffmpeg -L../ffmpeg/libavcodec -L../ffmpeg/libavformt -L../ffmpeg/libswscale -L../ffmpeg/libavutil -lavcodec -lavformat -lswscale -lavutil -lmp3lame -lx264 `sdl-config --cflags --libs` I note that when I do the make in the svn ffmpeg-directory there are a lot of options on the gcc command. I hardly know any of the options. Thanks in advance

5 5

RTMP output - "Past duration too large"
by Matt Conway 26 Jan '16

26 Jan '16

I'm trying to use ffmpeg to livestream to an online service such as ustream. This is the command I am using - ffmpeg -i rtsp://RTSPStreamUrl -an -f avi rtmp://RTMPStreamUrl It keeps returning a long list of errors all saying "Past duration X.XXXXXX too large", the number is changing however, increasing the longer I leave the stream running. Is this because the frames in my stream are too large? What can I do to stop this from happening. Here is a screenshot of the output. [image: Inline image 1]

4 8

Capture Webcam and also display on screen.
by kevin 13 Jan '16

13 Jan '16

I need to capture webcam and also save that file/stream simultaneously in OS X. This command is available, ffmpeg -f avfoundation -i "<screen device index>:<audio device index>" out.avi but how to display on screen the video stream that is getting captured to out.avi? Thank you.

2 1

a -vf for broadcast safe
by Jim Shupert 30 Dec '15

30 Dec '15

I was wondering if there is a means to ensure that a file is transcoded as 'broadcast safe' input a unCompressed yuv avi and get a second Uncompressed yuv avi or mov and it would be 'broadcast safe'. I wish for the functionality of the broadcast safe effect available withing final cut 6. I do not find anything in the documentation. I wonder if Hald CLUT would be of any utility. thanks jim s

7 16

Compiling ffmpeg with NVENC and NVIDIA GRID K1
by Klaus Schürmann 24 Sep '15

24 Sep '15

Hello, I compiled ffmpeg with nvenc support. The compile process worked without any error. But if I try to convert a file with nvenc I got the error message "[nvenc @ 0x39dc1c0] CreateInputBuffer failed". Can somebody help me to fix this problem? Best Regards Klaus Schuermann OS: Ubuntu 14.04.2 LTS NVidia driver: 346 Her is the complete output oft he convert job: root@video-convert1:~/ffmpeg_sources/ffmpeg_libnvenc# ffmpeg -i /media/testfile.mkv -r 60 -s 1024x768 -vcodec nvenc -b:v 5750k testfile.mp4 ffmpeg version N-73133-gd7e224e Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04) configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nvenc --enable-nonfree libavutil 54. 27.100 / 54. 27.100 libavcodec 56. 44.101 / 56. 44.101 libavformat 56. 38.101 / 56. 38.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 18.100 / 5. 18.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.100 / 1. 2.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, matroska,webm, from '/media/testfile.mkv': Metadata: encoder : libebml v1.3.0 + libmatroska v1.4.1 creation_time : 2014-09-29 00:31:12 Duration: 00:21:03.51, start: 0.000000, bitrate: 3015 kb/s Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709/unknown/unknown), 1280x720, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default) Stream #0:1: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s (default) [nvenc @ 0x39dc1c0] CreateInputBuffer failed Output #0, mp4, to 'testfile.mp4': Metadata: encoder : libebml v1.3.0 + libmatroska v1.4.1 Stream #0:0(eng): Video: h264, none, q=2-31, 128 kb/s, SAR 4:3 DAR 0:0, 60 fps (default) Metadata: encoder : Lavc56.44.101 nvenc Stream #0:1: Audio: aac, 0 channels, 128 kb/s (default) Metadata: encoder : Lavc56.44.101 libfdk_aac Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (nvenc)) Stream #0:1 -> #0:1 (ac3 (native) -> aac (libfdk_aac)) Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height Output of devicequery: root@video-convert1:~# NVIDIA_CUDA-7.0_Samples/1_Utilities/deviceQuery/deviceQuery NVIDIA_CUDA-7.0_Samples/1_Utilities/deviceQuery/deviceQuery Starting... CUDA Device Query (Runtime API) version (CUDART static linking) Detected 4 CUDA Capable device(s) Device 0: "GRID K1" CUDA Driver Version / Runtime Version 7.0 / 7.0 CUDA Capability Major/Minor version number: 3.0 Total amount of global memory: 4096 MBytes (4294770688 bytes) ( 1) Multiprocessors, (192) CUDA Cores/MP: 192 CUDA Cores GPU Max Clock rate: 850 MHz (0.85 GHz) Memory Clock rate: 891 Mhz Memory Bus Width: 128-bit L2 Cache Size: 262144 bytes Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096) Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 49152 bytes Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 2048 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): (1024, 1024, 64) Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535) Maximum memory pitch: 2147483647 bytes Texture alignment: 512 bytes Concurrent copy and kernel execution: Yes with 1 copy engine(s) Run time limit on kernels: No Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device PCI Domain ID / Bus ID / location ID: 0 / 132 / 0 Compute Mode: < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) > Device 1: "GRID K1" CUDA Driver Version / Runtime Version 7.0 / 7.0 CUDA Capability Major/Minor version number: 3.0 Total amount of global memory: 4096 MBytes (4294770688 bytes) ( 1) Multiprocessors, (192) CUDA Cores/MP: 192 CUDA Cores GPU Max Clock rate: 850 MHz (0.85 GHz) Memory Clock rate: 891 Mhz Memory Bus Width: 128-bit L2 Cache Size: 262144 bytes Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096) Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 49152 bytes Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 2048 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): (1024, 1024, 64) Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535) Maximum memory pitch: 2147483647 bytes Texture alignment: 512 bytes Concurrent copy and kernel execution: Yes with 1 copy engine(s) Run time limit on kernels: No Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device PCI Domain ID / Bus ID / location ID: 0 / 133 / 0 Compute Mode: < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) > Device 2: "GRID K1" CUDA Driver Version / Runtime Version 7.0 / 7.0 CUDA Capability Major/Minor version number: 3.0 Total amount of global memory: 4096 MBytes (4294770688 bytes) ( 1) Multiprocessors, (192) CUDA Cores/MP: 192 CUDA Cores GPU Max Clock rate: 850 MHz (0.85 GHz) Memory Clock rate: 891 Mhz Memory Bus Width: 128-bit L2 Cache Size: 262144 bytes Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096) Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 49152 bytes Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 2048 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): (1024, 1024, 64) Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535) Maximum memory pitch: 2147483647 bytes Texture alignment: 512 bytes Concurrent copy and kernel execution: Yes with 1 copy engine(s) Run time limit on kernels: No Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device PCI Domain ID / Bus ID / location ID: 0 / 134 / 0 Compute Mode: < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) > Device 3: "GRID K1" CUDA Driver Version / Runtime Version 7.0 / 7.0 CUDA Capability Major/Minor version number: 3.0 Total amount of global memory: 4096 MBytes (4294770688 bytes) ( 1) Multiprocessors, (192) CUDA Cores/MP: 192 CUDA Cores GPU Max Clock rate: 850 MHz (0.85 GHz) Memory Clock rate: 891 Mhz Memory Bus Width: 128-bit L2 Cache Size: 262144 bytes Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096) Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 49152 bytes Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 2048 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): (1024, 1024, 64) Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535) Maximum memory pitch: 2147483647 bytes Texture alignment: 512 bytes Concurrent copy and kernel execution: Yes with 1 copy engine(s) Run time limit on kernels: No Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device PCI Domain ID / Bus ID / location ID: 0 / 135 / 0 Compute Mode: < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) > > Peer access from GRID K1 (GPU0) -> GRID K1 (GPU1) : Yes Peer access > from GRID K1 (GPU0) -> GRID K1 (GPU2) : Yes Peer access from GRID K1 > (GPU0) -> GRID K1 (GPU3) : Yes Peer access from GRID K1 (GPU1) -> GRID > K1 (GPU1) : No Peer access from GRID K1 (GPU1) -> GRID K1 (GPU2) : Yes > Peer access from GRID K1 (GPU1) -> GRID K1 (GPU3) : Yes Peer access > from GRID K1 (GPU2) -> GRID K1 (GPU1) : Yes Peer access from GRID K1 > (GPU2) -> GRID K1 (GPU2) : No Peer access from GRID K1 (GPU2) -> GRID > K1 (GPU3) : Yes Peer access from GRID K1 (GPU1) -> GRID K1 (GPU0) : > Yes Peer access from GRID K1 (GPU1) -> GRID K1 (GPU1) : No Peer access > from GRID K1 (GPU1) -> GRID K1 (GPU2) : Yes Peer access from GRID K1 > (GPU2) -> GRID K1 (GPU0) : Yes Peer access from GRID K1 (GPU2) -> GRID > K1 (GPU1) : Yes Peer access from GRID K1 (GPU2) -> GRID K1 (GPU2) : No > Peer access from GRID K1 (GPU3) -> GRID K1 (GPU0) : Yes Peer access > from GRID K1 (GPU3) -> GRID K1 (GPU1) : Yes Peer access from GRID K1 > (GPU3) -> GRID K1 (GPU2) : Yes deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 7.0, CUDA Runtime Version = 7.0, NumDevs = 4, Device0 = GRID K1, Device1 = GRID K1, Device2 = GRID K1, Device3 = GRID K1 Result = PASS

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Feature request: show the "speed" of audio only conversions
by Roger Pack 08 Sep '15

08 Sep '15

Good day. Sorry if this is a repeat, but sending it on again just in case: Currently when FFmpeg does an "audio only" conversion, it shows a progress output thusly: size= 499284kB time=00:14:47.61 bitrate=4608.0kbits/s what it "lacks" (in my opinion) is an audio equivalent to the "fps= 59" that is shown during a video conversion progress bar: frame= 386 fps= 59 q=2686559.0 Lsize= 959kB time=00:00:12.81 bitrate= 613.0kbits/s dup=31 drop=1 Suggestion/feature request: make audio progress bar include a "seconds per second" metric, or otherwise, like size= 499284kB time=00:14:47.61 bitrate=4608.0kbits/s speed= 1.9 s/s So you can see how many seconds (and thus infer how long the entire process will take) more easily. Thank you. Kind regards. -roger-

3 4

DTS Out of Order / DTS & PTS Invalid Dropping
by ryan.vincent29＠gmail.com 11 Aug '15

11 Aug '15

Hello FFmpeg-users, I am struggling to get the concat demuxer working on FFMPEG Version 4.2.4. I am attempting to combine multiple image files into a video by using the command: ffmpeg -f concat -i myFile.txt output.mp4 I get an output file from the command, but the total time is much shorter than the time I specify in the file. I am fairly sure it has something to do with these: [concat @ 0x3517c20] DTS -230575710986727 < -9214782102262 out of order DTS -221360928884465, next:40000 st:0 invalid dropping PTS -221360928884465, next:40000 invalid dropping st:0 DTS -221360928884389, next:80000 st:0 invalid dropping PTS -221360928884389, next:80000 invalid dropping st:0 *Does anyone have any idea what I can do to get this working? Contents of myFile.txt: file 'image0.png' duration 2.018 file 'image1.png' duration 3.018 file 'image2.png' duration 4.018 Version Information for FFMPEG: ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers built on Oct 10 2014 15:15:58 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1) configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-x11grab --enable-libpulse --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56. 1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100 Output from ffmpeg upon running the command: ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers built on Oct 10 2014 15:15:58 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1) configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-x11grab --enable-libpulse --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56. 1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100 Input #0, concat, from 'myFile.txt': Duration: 00:00:09.05, start: 775903366.480000, bitrate: 0 kb/s Stream #0:0: Video: png, rgba, 1500x1000, 25 tbr, 25 tbn, 25 tbc No pixel format specified, yuv444p for H.264 encoding chosen. Use -pix_fmt yuv420p for compatibility with outdated media players. [libx264 @ 0x35240e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 0x35240e0] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit [libx264 @ 0x35240e0] 264 - core 142 r2431 ac76440 - 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=4 threads=1 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 'output.mp4': Metadata: encoder : Lavf56.4.101 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 1500x1000, q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc56.1.100 libx264 Stream mapping: Stream #0:0 -> #0:0 (png (native) -> h264 (libx264)) Press [q] to stop, [?] for help [concat @ 0x3517c20] DTS -230575710986727 < -9214782102262 out of order DTS -221360928884465, next:40000 st:0 invalid dropping PTS -221360928884465, next:40000 invalid dropping st:0 DTS -221360928884389, next:80000 st:0 invalid dropping PTS -221360928884389, next:80000 invalid dropping st:0 frame= 3 fps=0.0 q=28.0 Lsize= 27kB time=00:00:00.04 bitrate=5587.6kbits/s video:26kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.225568% [libx264 @ 0x35240e0] frame I:1 Avg QP:14.32 size: 13024 [libx264 @ 0x35240e0] frame P:1 Avg QP:16.34 size: 246 [libx264 @ 0x35240e0] frame B:1 Avg QP:18.24 size: 13107 [libx264 @ 0x35240e0] consecutive B-frames: 33.3% 66.7% 0.0% 0.0% [libx264 @ 0x35240e0] mb I I16..4: 73.4% 19.5% 7.1% [libx264 @ 0x35240e0] mb P I16..4: 0.1% 0.1% 0.0% P16..4: 1.7% 0.1% 0.0% 0.0% 0.0% skip:98.0% [libx264 @ 0x35240e0] mb B I16..4: 9.5% 6.3% 6.8% B16..8: 4.8% 0.5% 0.0% direct: 0.1% skip:72.0% L0:20.7% L1:79.0% BI: 0.3% [libx264 @ 0x35240e0] 8x8 transform intra:21.1% inter:70.4% [libx264 @ 0x35240e0] coded y,u,v intra: 10.0% 5.9% 3.9% inter: 0.5% 0.5% 0.5% [libx264 @ 0x35240e0] i16 v,h,dc,p: 86% 12% 1% 1% [libx264 @ 0x35240e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 12% 55% 1% 1% 1% 1% 1% 1% [libx264 @ 0x35240e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 27% 10% 3% 4% 4% 4% 3% 3% [libx264 @ 0x35240e0] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @ 0x35240e0] kb/s:1758.47 Any help would be much appreciated. Ryan Vincent -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/DTS-Out-of-Order-DTS-PTS-Invalid-D… Sent from the FFmpeg-users mailing list archive at Nabble.com.

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what program to use to grab device and send to ffserver?
by Ricardo Kleemann 26 Jul '15

26 Jul '15

I want to feed ffserver but I’m not sure what program to use. I have a BlackMagic Design Ultrastudio mini recorder connected to macbook pro thunderbolt. But it seems the only program that recognizes the device is FMLE. ffmpeg won’t list the video device if I run the list_devices (only shows the audio device) $ ffmpeg -f avfoundation -list_devices true -i "" ffmpeg version 2.6.3 Copyright (c) 2000-2015 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/2.6.3 --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-libfreetype --enable-libvorbis --enable-libvpx --enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus --enable-libquvi --enable-libx265 --enable-nonfree --enable-vda libavutil 54. 20.100 / 54. 20.100 libavcodec 56. 26.100 / 56. 26.100 libavformat 56. 25.101 / 56. 25.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 11.102 / 5. 11.102 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 [AVFoundation input device @ 0x7f8038c23220] AVFoundation video devices: [AVFoundation input device @ 0x7f8038c23220] [0] FaceTime HD Camera (Built-in) [AVFoundation input device @ 0x7f8038c23220] [1] Capture screen 0 [AVFoundation input device @ 0x7f8038c23220] AVFoundation audio devices: [AVFoundation input device @ 0x7f8038c23220] [0] Blackmagic Audio [AVFoundation input device @ 0x7f8038c23220] [1] Built-in Input I tried VLC and it also doesn’t show anything other than the built-in webcam. Is there any other program that could be used for feeding into ffserver? I don’t believe FMLE is capable of feeding fresher. thanks Ricardo

6 15

rgb2xyz filter
by laurie hughes 10 Jul '15

10 Jul '15

Hi First time for me on a mail list, so here goes…. I am researching DCP creation and I came across this page on the web http://www.michaelcinquin.com/library/ffmpeg. it has a note at the bottom saying rgb2xyz filter is now obsolete, as FFmpeg has xyz built-in I am taking this to mean that there is no need to patch and that there is a xyz filter to convert from rgb (or other) to xyz colourspace. but I cant seem to find any evidence of this in the documentation. Does anyone know of this feature, or should I be trying to patch? Thanks in advance L

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