Newest 'ffmpeg' Questions - Stack Overflow
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Android : Creating video from images [closed]
9 août 2013, par RajI am working on an Android app where I want to create a video from a list of static images. After doing some search on internet, it made me realized that using "FFMPEG" is the way to go in getting this thing done. So I got hold of this site: https://github.com/guardianproject/android-ffmpeg-java from where I downloaded the C library and the Java wrapper. I was able to compile the C library - of course not the way the instruction was laid out - but still I was able to get "ffmpeg" executable under /external/android-ffmpeg/ffmpeg directory. I copied that executable in my current directory and then copied it to a directory under Android where my app can access it. Then I called the Java wrapper provided but I am seeing some errors in the log file like follows:
08-09 17:01:12.374: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-001.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-000.jpg 08-09 17:01:12.404: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:12.464: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:12.534: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-001.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-001.jpg 08-09 17:01:12.584: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:12.584: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:12.624: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-002.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-002.jpg 08-09 17:01:12.654: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:12.654: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:12.694: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-003.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-003.jpg 08-09 17:01:12.734: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:12.734: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:12.774: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-004.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-004.jpg 08-09 17:01:12.804: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:12.804: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:12.854: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-005.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-005.jpg 08-09 17:01:12.915: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:12.915: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:12.955: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-006.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-006.jpg 08-09 17:01:13.005: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:13.005: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:13.055: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-007.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-007.jpg 08-09 17:01:13.125: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:13.125: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:13.185: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-008.jpg /data/data/com.sample/files/usersnapshot/ffmpeg/image-008.jpg 08-09 17:01:13.255: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:13.255: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:13.315: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -loop 0 -f image2 -r 1/2 -i /data/data/com.sample/files/usersnapshot/ffmpeg/image-%03d.jpg -strict -2 /data/data/com.sample/files/usersnapshot/ffmpeg/tmp.mpg 08-09 17:01:13.375: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:13.375: I/ShellCallback : processComplete()(19369): 1 08-09 17:01:13.435: D/FFMPEG(19369): /data/data/com.sample/files/ffmpeg/ffmpeg -y -i /data/data/com.sample/files/usersnapshot/ffmpeg/tmp.mpg -strict -2 -vcodec mpeg4 /storage/emulated/0/video/snapshot-video.mp4 08-09 17:01:13.495: I/ShellCallback : shellOut()(19369): /data/data/com.sample/files/ffmpeg/ffmpeg[1]: syntax error: '(' unexpected 08-09 17:01:13.505: I/ShellCallback : processComplete()(19369): 1And following is the code snippet (where targetDirectoryForFFMPEG = directory where the images are stored):
import org.ffmpeg.android.FfmpegController; import org.ffmpeg.android.MediaDesc; import org.ffmpeg.android.ShellUtils.ShellCallback; ... ... FfmpegController ffmpegController = new FfmpegController(this, targetDirectoryForFFMPEG); MediaDesc out = new MediaDesc(); out.path = videoOutPutFile.getPath(); ffmpegController.createSlideshowFromImagesAndAudio(listOfMediaDesc, null, out, 2, new ShellCallback() { @Override public void shellOut(String shellLine) { Log.i("ShellCallback : shellOut()", shellLine); } @Override public void processComplete(int exitValue) { Log.i("ShellCallback : processComplete()", exitValue+""); } });Has anybody implemented this before? If yes, can you point me to what am I doing incorrect? I will provide more information if needed.
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FFmpeg CPU utilization
9 août 2013, par user2565986I have a server running Scientific Linux. I'm trying to convert a large amount of videos and want to maximize cpu usage. My ffmpeg version is git-2013-08-06-a68b6ec.
FFmpeg command:
ffmpeg -y -i "$i" -c:v libx264 -preset fast -b:v "$VID_BIT" -threads 0 -c:a libfdk_aac -b:a "$AUD_BIT" -f mp4 /"$OUT_DIR"/"$MD5"top output:
top - 10:47:25 up 3 days, 22:05, 5 users, load average: 1.94, 0.49, 0.16 Tasks: 578 total, 1 running, 574 sleeping, 3 stopped, 0 zombie Cpu0 : 0.0%us, 0.6%sy, 63.2%ni, 36.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu1 : 0.0%us, 0.6%sy, 60.1%ni, 39.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu2 : 0.0%us, 0.3%sy, 59.5%ni, 40.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu3 : 0.0%us, 0.6%sy, 57.1%ni, 42.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 : 0.0%us, 0.3%sy, 55.0%ni, 44.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu5 : 0.0%us, 0.6%sy, 50.2%ni, 49.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu6 : 0.0%us, 0.3%sy, 56.4%ni, 43.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu7 : 0.0%us, 0.6%sy, 50.3%ni, 49.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu8 : 0.0%us, 0.6%sy, 47.7%ni, 51.6%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu9 : 0.3%us, 0.3%sy, 46.8%ni, 52.6%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu10 : 0.0%us, 0.3%sy, 50.2%ni, 49.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu11 : 0.0%us, 0.7%sy, 49.0%ni, 50.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu12 : 0.0%us, 0.6%sy, 49.4%ni, 50.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu13 : 0.0%us, 0.6%sy, 43.2%ni, 56.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu14 : 0.0%us, 0.3%sy, 44.5%ni, 55.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu15 : 0.0%us, 0.6%sy, 46.3%ni, 53.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu16 : 0.0%us, 0.7%sy, 44.6%ni, 54.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu17 : 0.0%us, 0.3%sy, 43.3%ni, 56.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu18 : 0.0%us, 0.3%sy, 41.6%ni, 58.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu19 : 0.0%us, 0.3%sy, 34.3%ni, 65.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu20 : 0.0%us, 0.6%sy, 32.5%ni, 66.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu21 : 0.0%us, 0.3%sy, 37.9%ni, 61.4%id, 0.3%wa, 0.0%hi, 0.0%si, 0.0%st Cpu22 : 0.0%us, 0.3%sy, 36.9%ni, 62.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu23 : 0.0%us, 1.0%sy, 37.6%ni, 61.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 198345032k total, 10135568k used, 188209464k free, 144212k buffers Swap: 55640056k total, 0k used, 55640056k free, 5066724k cachedI'm not sure why user usage is at 0% and the niced usage is all I see, but either way I'm looking for a way to get the usage up to 100%. Is there anyway to bolster the usage or is this the best I'm gonna get?
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how to fix ffmpeg error 'frame crc mismatch'
9 août 2013, par SamI am trying to re-encode a video file using ffmpeg but every time I try to run it
ffmpeg -i -c:v libx264 -crf 25 -preset slow -c:a libfaacit does the first five minutes or so of the video and then gives the following error and stops:
frame CRC mismatch [matroska,webm @ 0x7ff609806600] Unknown entry 0x762F [matroska,webm @ 0x7ff609806600] Unknown entry 0x4B61 [matroska,webm @ 0x7ff609806600] Unknown entry 0xA2 [matroska,webm @ 0x7ff609806600] Unknown entry 0x7F38 [matroska,webm @ 0x7ff609806600] Unknown entry 0x39E0B1 frame= 7473 fps=8.3 q=30.0 size= 42488kB time=-577014:-32:-22.-77 bitrate=N/A frame= 7473 fps=8.2 q=-1.0 Lsize= 43099kB time=00:05:12.06 bitrate=1131.4kbits/s video:35549kB audio:7338kB subtitle:0 global headers:0kB muxing overhead 0.494802% [libx264 @ 0x7ff609826c00] frame I:70 Avg QP:21.35 size: 41968 [libx264 @ 0x7ff609826c00] frame P:2000 Avg QP:24.37 size: 9139 [libx264 @ 0x7ff609826c00] frame B:5403 Avg QP:26.21 size: 2811 [libx264 @ 0x7ff609826c00] consecutive B-frames: 1.8% 2.7% 8.5% 87.1% [libx264 @ 0x7ff609826c00] mb I I16..4: 25.7% 61.5% 12.8% [libx264 @ 0x7ff609826c00] mb P I16..4: 5.3% 5.5% 0.5% P16..4: 39.9% 6.3% 5.4% 0.0% 0.0% skip:37.2% [libx264 @ 0x7ff609826c00] mb B I16..4: 0.2% 0.4% 0.0% B16..8: 36.6% 1.5% 0.2% direct: 0.6% skip:60.5% L0:40.3% L1:58.3% BI: 1.3% [libx264 @ 0x7ff609826c00] 8x8 transform intra:52.6% inter:89.8% [libx264 @ 0x7ff609826c00] direct mvs spatial:100.0% temporal:0.0% [libx264 @ 0x7ff609826c00] coded y,uvDC,uvAC intra: 38.4% 47.1% 8.5% inter: 6.5% 10.0% 0.0% [libx264 @ 0x7ff609826c00] i16 v,h,dc,p: 34% 18% 8% 39% [libx264 @ 0x7ff609826c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 11% 7% 10% 10% 14% 13% 13% 11% 11% [libx264 @ 0x7ff609826c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 11% 6% 8% 13% 12% 12% 10% 12% [libx264 @ 0x7ff609826c00] i8c dc,h,v,p: 55% 21% 18% 6% [libx264 @ 0x7ff609826c00] Weighted P-Frames: Y:1.2% UV:0.9% [libx264 @ 0x7ff609826c00] ref P L0: 57.7% 10.2% 19.2% 5.9% 6.5% 0.5% 0.0% [libx264 @ 0x7ff609826c00] ref B L0: 82.1% 13.2% 3.6% 1.0% [libx264 @ 0x7ff609826c00] ref B L1: 94.8% 5.2% [libx264 @ 0x7ff609826c00] kb/s:934.32If I play the original video file in VLC, the frames at the point where the encoding stops go glitchy for a few seconds but then comes good again.
How can I get around this? I don't really mind if those few seconds stay glitchy (although it would be nice if that could be fixed) but I do need to re-encode this video, with or without the glitchy couple of seconds...
Even if I use another program like iFlicks to try and re-encode it does up to the same point and then stops. It also stops at the same point if I use ffmpeg to copy the codecs into a new mp4 container.
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How to convert Live video stream from YUV(HDYC) to RGB
9 août 2013, par user2499628I want to convert video streams from webcam. that video streams are called HDYC. I think it's a little special so I didn't control now.
My question is How to convert that format to rgb in c++ using ffmpeg? but there are some constraints. I don't want to make a file. in other wors, It needs to convert video streams from webcam. also It's a real time operation.
Thanks.
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convert f4v to mp4 with ffmpeg
9 août 2013, par Winnie OldrightTrying to convert
f4vtomp4with ffmpegThis file
FFmpeg :
ffmpeg -i input.f4v -vcodec copy -acodec copy output.mp4In output i have black screen in video and no sound but track seconds are incrementing properly.
What i'm doing wrong? Or maybe i need mpg or some other file type in out put (output file type should supports in android).
