I want to download a video from eventive but the tag contains a blob url (blob:https://watch.eventive.org/**************).
I have been reading some answers to similar questions but they all assume that the video has a mp3u8 file extension, which in my case doesn't.
I have also tried to directly download that url (removing the blob:) with curl, but I obtained a html code which I cant really understand, which contains a lot of references to javascript files.
Any tip would be really helpful.
Edit:
I have been doing some more tests and I have been able to found a url to a manifest file which points apparently to the video data. I have tried to open that url using VLC and it loads some info about the video, and it even plays it, but the screen is completely black.
I have also tried to download it using ffmpeg but it gives a bunch of errors.
ffmpeg -i https://eventiveprod-usea.streaming.media.azure.net/02968382-069a-4f02-ab3b-67c0b5a8d5b7/5f427f2d65a569006ebd326c.ism/manifest\(format\=mpd-time-csf\) output.mp4
ffmpeg output
ffmpeg version n4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 10.1.0 (GCC)
configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librav1e --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-nvdec --enable-nvenc --enable-omx --enable-shared --enable-version3
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
[h264 # 0x556c1e280bc0] top block unavailable for requested intra mode
[h264 # 0x556c1e280bc0] error while decoding MB 34 0, bytestream 41478
[h264 # 0x556c1e280bc0] concealing 8160 DC, 8160 AC, 8160 MV errors in I frame
[h264 # 0x556c1e2ce440] top block unavailable for requested intra mode -1
[h264 # 0x556c1e2ce440] error while decoding MB 34 0, bytestream 22093
[h264 # 0x556c1e2ce440] concealing 3600 DC, 3600 AC, 3600 MV errors in I frame
[h264 # 0x556c1e2f9f40] top block unavailable for requested intra mode -1
[h264 # 0x556c1e2f9f40] error while decoding MB 24 0, bytestream 15117
[h264 # 0x556c1e2f9f40] concealing 2040 DC, 2040 AC, 2040 MV errors in I frame
[h264 # 0x556c1e333bc0] top block unavailable for requested intra mode -1
[h264 # 0x556c1e333bc0] error while decoding MB 17 0, bytestream 8716
[h264 # 0x556c1e333bc0] concealing 920 DC, 920 AC, 920 MV errors in I frame
[aac # 0x556c1e3745c0] channel element 2.8 is not allocated
Input #0, dash, from 'https://eventiveprod-usea.streaming.media.azure.net/02968382-069a-4f02-ab3b-67c0b5a8d5b7/5f427f2d65a569006ebd326c.ism/manifest(format=mpd-time-csf)':
Duration: 00:21:18.00, start: 0.066000, bitrate: 0 kb/s
Program 0
Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1317 kb/s, 29.97 fps, 29.97 tbr, 10000k tbn, 59.94 tbc
Metadata:
variant_bitrate : 1770930
id : 1_V_video_1
Stream #0:1: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 686 kb/s, 29.97 fps, 29.97 tbr, 10000k tbn, 59.94 tbc
Metadata:
variant_bitrate : 904295
id : 1_V_video_2
Stream #0:2: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 960x540 [SAR 1:1 DAR 16:9], 495 kb/s, 29.97 fps, 29.97 tbr, 10000k tbn, 59.94 tbc
Metadata:
variant_bitrate : 572685
id : 1_V_video_3
Stream #0:3: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 308 kb/s, 29.97 fps, 29.97 tbr, 10000k tbn, 59.94 tbc
Metadata:
variant_bitrate : 301036
id : 1_V_video_4
Stream #0:4(en): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
variant_bitrate : 127999
id : 5_A_aac_eng_2_127999
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:4 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[aac # 0x556c1e392dc0] channel element 2.8 is not allocated
Error while decoding stream #0:4: Invalid data found when processing input
[h264 # 0x556c1e3da900] top block unavailable for requested intra mode
[h264 # 0x556c1e3da900] error while decoding MB 34 0, bytestream 41478
[aac # 0x556c1e392dc0] Reserved bit set.
[aac # 0x556c1e392dc0] Number of bands (13) exceeds limit (11).
[h264 # 0x556c1e3da900] concealing 8160 DC, 8160 AC, 8160 MV errors in I frame
Error while decoding stream #0:4: Invalid data found when processing input
[aac # 0x556c1e392dc0] channel element 2.4 is not allocated
Error while decoding stream #0:4: Invalid data found when processing input
[aac # 0x556c1e392dc0] Multiple frames in a packet.
...
[libx264 # 0x5588338c2d00] frame I:1 Avg QP: 4.13 size: 421
[libx264 # 0x5588338c2d00] frame P:32 Avg QP:14.06 size: 1216
[libx264 # 0x5588338c2d00] frame B:96 Avg QP:20.52 size: 306
[libx264 # 0x5588338c2d00] consecutive B-frames: 0.8% 0.0% 0.0% 99.2%
[libx264 # 0x5588338c2d00] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 # 0x5588338c2d00] mb P I16..4: 0.6% 0.6% 0.0% P16..4: 9.4% 0.3% 0.3% 0.0% 0.0% skip:88.9%
[libx264 # 0x5588338c2d00] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 3.7% 0.0% 0.0% direct: 0.0% skip:96.2% L0:53.5% L1:46.3% BI: 0.2%
[libx264 # 0x5588338c2d00] 8x8 transform intra:13.0% inter:86.8%
[libx264 # 0x5588338c2d00] coded y,uvDC,uvAC intra: 1.3% 0.8% 0.2% inter: 0.2% 0.2% 0.0%
[libx264 # 0x5588338c2d00] i16 v,h,dc,p: 98% 0% 2% 0%
[libx264 # 0x5588338c2d00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 2% 64% 0% 0% 0% 0% 0% 0%
[libx264 # 0x5588338c2d00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 18% 42% 3% 1% 1% 2% 2% 1%
[libx264 # 0x5588338c2d00] i8c dc,h,v,p: 99% 0% 0% 0%
[libx264 # 0x5588338c2d00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 # 0x5588338c2d00] ref P L0: 86.7% 1.2% 8.8% 3.3%
[libx264 # 0x5588338c2d00] ref B L0: 62.7% 35.4% 1.9%
[libx264 # 0x5588338c2d00] ref B L1: 96.1% 3.9%
[libx264 # 0x5588338c2d00] kb/s:127.70
Conversion failed!
Related
I encoded a series of 16-bit grayscale PNGs to a lossless video with the following command:
ffmpeg -i image%04d.png -crf 0 -c:v libx264 -preset veryslow output.mp4
I am now trying to verify that the conversion to video was truly lossless by pulling out the PNGs at the same quality. The command I'm using:
ffmpeg -i output.mp4 image%04d.png
However, this is outputting 8-bit PNGs. I've tried various options I've read about such as -vcodec png and -qscale 0 but so far nothing appears to make it output 16-bit PNGs.
How do I extract all frames from the video at the same quality as they were going in? Or did I make a mistake in creating the lossless video in the first place?
Edit: I get this error message when trying to use -pix_fmt gray16be.
[swscaler # 0x7fef1a8f0800] deprecated pixel format used, make sure
you did set range correctly
Full output:
ffmpeg -i output.mp4 -pix_fmt gray16be image%04d.png
ffmpeg version 3.3.1 Copyright (c) 2000-2017 the FFmpeg developers
built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.71.100
Duration: 00:00:09.76, start: 0.000000, bitrate: 1337 kb/s
Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuvj444p(pc), 512x512, 1336 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
Metadata:
handler_name : VideoHandler
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> png (native))
Press [q] to stop, [?] for help
[swscaler # 0x7fef1a8f0800] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'image%04d.png':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.71.100
Stream #0:0(und): Video: png, gray16be, 512x512, q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc57.89.100 png
frame= 244 fps=0.0 q=-0.0 Lsize=N/A time=00:00:09.76 bitrate=N/A speed= 21x
video:4038kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
I'm happy to use a non-ffmpeg solution if there is one.
Your lossless video is 8-bit, as that's what x264 has encoded to. And in any case, x264 does not go above 10-bit (for which you would need a standalone encoder, or a different ffmpeg binary).
-c:v ffv1 is lossless and can encode to 16-bit gray (gray16le) or 16-bit RGB (e.g. rgb48le)
That swscaler line is a warning, not an error. FFmpeg does report the output as 16-bit per channel,
Stream #0:0(und): Video: png, gray16be, 512x512 ...
but you've already lost fidelity with the downgrade of the bit depth when you encoded to H.264.
I'm unclear on what the pixel format of the input PNGs is - RGB with no hint of hue, or a monochannel encoding? I suspect the former, in which case, use
ffmpeg -i image%04d.png -c:v ffv1 output.nut
Then you can do a compare with
ffmpeg -i output.nut -i image%04d.png -filter_complex ssim -f null -
A readout of
SSIM R:1.000000 (inf) G:1.000000 (inf) B:1.000000 (inf) All:1.000000 (inf)
indicates full fidelity.
i have a rails application and change to cookie_store to active_record_store, but when i used a converter video in ffmpeg i getting this error
Maybe someone can help me to solve it?
error while running command ffmpeg -i "/tmp/9ce6ffe844cfb53c6adb76fef1f3330020160930-13071-hutiuw.mp4" -acodec aac -strict experimental -vcodec libx264 -s 720x405 -y "/tmp/9ce6ffe844cfb53c6adb76fef1f3330020160930-13071-hutiuw20160930-13071-1xp6lwi.mp4": Command 'PATH=/usr/local/bin/:$PATH; ffmpeg -i "/tmp/9ce6ffe844cfb53c6adb76fef1f3330020160930-13071-hutiuw.mp4" -acodec aac -strict experimental -vcodec libx264 -s 720x405 -y "/tmp/9ce6ffe844cfb53c6adb76fef1f3330020160930-13071-hutiuw20160930-13071-1xp6lwi.mp4"' returned 1. Expected 0 Here is the command output: STDOUT: STDERR: ffmpeg version 2.8.6-1ubuntu2 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.3.1 (Ubuntu 5.3.1-11ubuntu1) 20160311 configuration: --prefix=/usr --extra-version=1ubuntu2 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/i386-linux-gnu --incdir=/usr/include/i386-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv --disable-i686 libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/9ce6ffe844cfb53c6adb76fef1f3330020160930-13071-hutiuw.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 creation_time : 2016-07-12 16:30:41 Duration: 00:04:38.96, start: 0.000000, bitrate: 1520 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 1325 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default) Metadata: handler_name : VideoHandler Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 191 kb/s (default) Metadata: creation_time : 2016-07-12 16:30:42 handler_name : IsoMedia File Produced by Google, 5-11-2011 [libx264 # 0xa1105e0] height not divisible by 2 (720x405) Output #0, mp4, to '/tmp/9ce6ffe844cfb53c6adb76fef1f3330020160930-13071-hutiuw20160930-13071-1xp6lwi.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 Stream #0:0(und): Video: h264, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 29.97 fps (default) Metadata: handler_name : VideoHandler encoder : Lavc56.60.100 libx264 Stream #0:1(eng): Audio: aac, 0 channels, 128 kb/s (default) Metadata: creation_time : 2016-07-12 16:30:42 handler_name : IsoMedia File Produced by Google, 5-11-2011 encoder : Lavc56.60.100 aac Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (aac (native) -> aac (native)) Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
I don't think your choice of cookie store had anything to do with that. This happened because you chose a video file with this particular input size (1280x720).
Error is:
[libx264 # 0xa1105e0] height not divisible by 2 (720x405)
There are plenty questions on this site about this error but in the end it boils down to a simple answer: "make sure encoded picture has even width and height". In your case output picture size (720x405) is passed down from your site code so you need to fix it there.
I need to compute the frame differences between a source video and a compressed one.
For now I'm using OpenCV with Java, by extracting each frame and doing a simple difference, but it's quite slow (working a 0.5 fps, meaning that a 500 frames video will take more than 15 mins) so I was thinking to move to FFMPEG.
FFMPEG feels a lot faster (everything's done under 1 minute) but it has one big issue that makes the results useless: when compressing the source file, done with FFMPEG too, an extra gray frame is added at the beginning and this fakes the results because different frames are compared.
This is what I'm doing now (knowing that the extra frame messes it all):
ffmpeg -y -i src.avi -i compressed.avi -filter_complex "blend=all_mode=difference,hue=s=0" -c:v libx264 -crf 18 -c:a copy difference.avi
To fix the frame issue I was trying to remove the first frame by re-encoding the compressed video with this command
ffmpeg -y -ss 0.02 -i compressed.mpg -an -f mpeg2video compressed-cut.mpg"
(Note that -ss is 0.02 because it's a 50 fps video, so I did 1/FPS as suggested here)
But I get this response
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
So, finally, the question is: since extracting all the frames and then compute differences with OpenCV is really slow, how can I use FFMPEG to produce a video containing the difference between two sources while keeping in mind that one of them has an extra frame at the beginning?
EDIT: I wanted to avoid posting endless console outputs but since you asked for it, here we go.
1) Encoding
Input
ffmpeg -i "720p50_mobcal_ter.avi" -an -f mpeg2video -y "720p50_mobcal_ter.mpg"
Output
ffmpeg version N-76684-g1fe82ab Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 6.100 / 55. 6.100
libavcodec 57. 15.100 / 57. 15.100
libavformat 57. 14.100 / 57. 14.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 15.100 / 6. 15.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, avi, from '720p50_mobcal_ter.avi':
Metadata:
encoder : Lavf57.14.100
Duration: 00:00:10.08, start: 0.000000, bitrate: 552974 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720, 554059 kb/s, SAR 1:1 DAR 16:9, 50 fps, 50 tbr, 50 tbn, 50 tbc
Output #0, mpeg2video, to '720p50_mobcal_ter.mpg':
Metadata:
encoder : Lavf57.14.100
Stream #0:0: Video: mpeg2video, yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 50 fps, 50 tbn, 50 tbc
Metadata:
encoder : Lavc57.15.100 mpeg2video
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg2video (native))
Press [q] to stop, [?] for help
frame= 41 fps=0.0 q=31.0 size= 984kB time=00:00:00.78 bitrate=10330.5kbits/frame= 80 fps= 78 q=31.0 size= 1323kB time=00:00:01.56 bitrate=6948.1kbits/frame= 124 fps= 80 q=31.0 size= 1725kB time=00:00:02.44 bitrate=5790.0kbits/frame= 168 fps= 81 q=31.0 size= 2084kB time=00:00:03.32 bitrate=5142.8kbits/frame= 212 fps= 81 q=31.0 size= 2482kB time=00:00:04.20 bitrate=4841.4kbits/frame= 255 fps= 82 q=31.0 size= 2840kB time=00:00:05.06 bitrate=4597.2kbits/frame= 296 fps= 82 q=31.0 size= 3133kB time=00:00:05.88 bitrate=4364.5kbits/frame= 338 fps= 82 q=24.8 size= 3453kB time=00:00:06.72 bitrate=4209.2kbits/frame= 382 fps= 82 q=31.0 size= 3723kB time=00:00:07.60 bitrate=4013.4kbits/frame= 426 fps= 83 q=31.0 size= 4005kB time=00:00:08.48 bitrate=3869.1kbits/frame= 470 fps= 83 q=24.8 size= 4276kB time=00:00:09.36 bitrate=3742.5kbits/frame= 504 fps= 83 q=31.0 Lsize= 4469kB time=00:00:10.06 bitrate=3639.3kbits/s
video:4469kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
This adds the extra grey frame at the beginning, it just duplicates the first one
2) Removing first frame
Input
ffmpeg -y -i "720p50_mobcal_ter.mpg" -an -f mpeg2video -vf select=gte(n\,1) "CUT-720p50_mobcal_ter.mpg"
Output
ffmpeg version N-76684-g1fe82ab Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 6.100 / 55. 6.100
libavcodec 57. 15.100 / 57. 15.100
libavformat 57. 14.100 / 57. 14.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 15.100 / 6. 15.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mpegvideo, from '720p50_mobcal_ter.mpg':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mpeg2video (Main), yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], max. 104857 kb/s, 50 fps, 50 tbr, 1200k tbn, 100 tbc
Output #0, mpeg2video, to 'CUT-720p50_mobcal_ter.mpg':
Metadata:
encoder : Lavf57.14.100
Stream #0:0: Video: mpeg2video, yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 50 fps, 50 tbn, 50 tbc
Metadata:
encoder : Lavc57.15.100 mpeg2video
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video (native) -> mpeg2video (native))
Press [q] to stop, [?] for help
frame= 255 fps=0.0 q=31.0 size= 2781kB time=00:00:05.10 bitrate=4467.3kbits/frame= 503 fps=0.0 q=31.0 Lsize= 4415kB time=00:00:10.08 bitrate=3588.5kbits/s
video:4415kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
3) Frame difference
Input
ffmpeg -y -i "720p50_mobcal_ter.avi" -i "CUT-720p50_mobcal_ter.mpg" -filter_complex "blend=all_mode=difference,hue=s=0" -c:v libx264 -crf 18 -c:a copy "DIFF-720p50_mobcal_ter.mpg"
Output
ffmpeg version N-76684-g1fe82ab Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 6.100 / 55. 6.100
libavcodec 57. 15.100 / 57. 15.100
libavformat 57. 14.100 / 57. 14.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 15.100 / 6. 15.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, avi, from '720p50_mobcal_ter.avi':
Metadata:
encoder : Lavf57.14.100
Duration: 00:00:10.08, start: 0.000000, bitrate: 552974 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720, 554059 kb/s, SAR 1:1 DAR 16:9, 50 fps, 50 tbr, 50 tbn, 50 tbc
Input #1, mpegvideo, from 'CUT-720p50_mobcal_ter.mpg':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: mpeg2video (Main), yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], max. 104857 kb/s, 50 fps, 50 tbr, 1200k tbn, 100 tbc
[libx264 # 000002784dbeb980] using SAR=1/1
[libx264 # 000002784dbeb980] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 # 000002784dbeb980] profile High, level 3.2
[mpeg # 000002784dbeaf20] VBV buffer size not set, using default size of 130KB
If you want the mpeg file to be compliant to some specification
Like DVD, VCD or others, make sure you set the correct buffer size
Output #0, mpeg, to 'D:\DOWNLOADS\TMP\Video TDI\AVI\DIFF-720p50_mobcal_ter.mpg':
Metadata:
encoder : Lavf57.14.100
Stream #0:0: Video: h264 (libx264), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 50 fps, 90k tbn, 50 tbc (default)
Metadata:
encoder : Lavc57.15.100 libx264
Stream mapping:
Stream #0:0 (rawvideo) -> blend:top
Stream #1:0 (mpeg2video) -> blend:bottom
hue -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
frame= 504 fps= 39 q=-1.0 Lsize= 32182kB time=00:00:10.04 bitrate=26258.5kbits/s
video:32061kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.377054%
[libx264 # 000002784dbeb980] frame I:30 Avg QP:19.69 size:149974
[libx264 # 000002784dbeb980] frame P:299 Avg QP:23.28 size: 69423
[libx264 # 000002784dbeb980] frame B:175 Avg QP:24.48 size: 43280
[libx264 # 000002784dbeb980] consecutive B-frames: 30.6% 69.4% 0.0% 0.0%
[libx264 # 000002784dbeb980] mb I I16..4: 18.3% 51.4% 30.4%
[libx264 # 000002784dbeb980] mb P I16..4: 0.6% 5.6% 2.4% P16..4: 35.9% 22.9% 15.6% 0.0% 0.0% skip:17.0%
[libx264 # 000002784dbeb980] mb B I16..4: 0.2% 0.5% 0.3% B16..8: 49.5% 12.4% 5.6% direct:15.5% skip:16.1% L0:47.8% L1:42.1% BI:10.1%
[libx264 # 000002784dbeb980] 8x8 transform intra:57.5% inter:38.5%
[libx264 # 000002784dbeb980] coded y,uvDC,uvAC intra: 90.7% 0.0% 0.0% inter: 50.3% 0.0% 0.0%
[libx264 # 000002784dbeb980] i16 v,h,dc,p: 32% 23% 35% 10%
[libx264 # 000002784dbeb980] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 11% 11% 41% 7% 5% 6% 5% 6% 8%
[libx264 # 000002784dbeb980] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 14% 23% 8% 7% 7% 7% 7% 8%
[libx264 # 000002784dbeb980] i8c dc,h,v,p: 100% 0% 0% 0%
[libx264 # 000002784dbeb980] Weighted P-Frames: Y:33.8% UV:0.0%
[libx264 # 000002784dbeb980] ref P L0: 58.1% 16.3% 14.2% 9.4% 2.0%
[libx264 # 000002784dbeb980] ref B L0: 79.3% 20.7%
[libx264 # 000002784dbeb980] kb/s:26056.02
The second command made everything work while the second one in the first part didn't (the one with the -ss option), so I could be quite happy about it but I'm not that sure if FFMPEG duplicates the first frame for every video or if it's just related to the one I'm using now, so it could be better to start off with a compressed video that has the same frame count of the original one.
So let's get to one final question: why does FFMPEG add a duplicated first frame at the beginning of the compressed video and how can I avoid that?
Encoding with
ffmpeg -i "720p50_mobcal_ter.avi" -c:v mpeg2video "720p50_mobcal_ter.mpg"
instead of
ffmpeg -i "720p50_mobcal_ter.avi" -an -f mpeg2video -y "720p50_mobcal_ter.mpg"
prevents the creation of the duplicate frame and makes everything work correctly.
I'm trying to convert a video to be played in a tag in a WebView in iOS. I've tried the options at this link but it still doesn't seem to play. I've found videos that do successfully play, though, so I'm sure it's possible, I just can't seem to get any working. Here's the ffmpeg -i output for something that works.
Here's what I tried from the wiki:
ffmpeg -i {filename} -acodec aac -ac 2 -strict experimental -ab 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -b 1200k -f mp4 -threads 0 {filename}.ipad.mp4
But the file doesn't play in the WebView.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.m4v':
Metadata:
major_brand : M4V
minor_version : 1
compatible_brands: M4V M4A mp42isom
creation_time : 2005-12-20 20:20:15
Duration: 00:01:25.50, start: 0.000000, bitrate: 209 kb/s
Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 115 kb/s
Metadata:
creation_time : 2005-12-20 20:20:15
handler_name : Apple Sound Media Handler
Stream #0:1(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 320x240, 90 kb/s, 10 fps, 10 tbr, 1k tbn, 2k tbc
Metadata:
creation_time : 2005-12-20 20:20:15
handler_name : Apple Video Media Handler
And here's the output for my input file:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'cheerfulness.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2013-07-31 00:47:22
Duration: 00:00:06.00, start: 0.000000, bitrate: 120849 kb/s
Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1200x1920, 120823 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc
Metadata:
creation_time : 2013-07-31 00:48:33
handler_name : Apple Alias Data Handler
edit: Here's the full output of the command:
wlue:$ ffmpeg -i cheerfulness.mov -acodec aac -ac 2 -strict experimental -ab 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -b 1200k -f mp4 -threads 0 output.ipad.mp4
ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
built on Sep 18 2013 18:44:15 with Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
libavutil 52. 18.100 / 52. 18.100
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.104 / 54. 63.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 42.103 / 3. 42.103
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'cheerfulness.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2013-07-31 00:47:22
Duration: 00:00:06.01, start: 0.000000, bitrate: 120849 kb/s
Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1200x1920, 120823 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc
Metadata:
creation_time : 2013-07-31 00:48:33
handler_name : Apple Alias Data Handler
Please use -b:a or -b:v, -b is ambiguous
[libx264 # 0x7fa67401fa00] frame MB size (75x120) > level limit (1620)
[libx264 # 0x7fa67401fa00] DPB size (5 frames, 17280000 bytes) > level limit (0 frames, 3110400 bytes)
[libx264 # 0x7fa67401fa00] MB rate (269730) > level limit (40500)
[libx264 # 0x7fa67401fa00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
[libx264 # 0x7fa67401fa00] profile Constrained Baseline, level 3.0
[libx264 # 0x7fa67401fa00] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=0 ref=5 deblock=1:0:0 analyse=0x1:0x111 me=umh subme=8 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=abr mbtree=1 bitrate=1200 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=10000 vbv_bufsize=10000 nal_hrd=none ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output.ipad.mp4':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
encoder : Lavf54.63.104
Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1200x1920, q=-1--1, 1200 kb/s, 30k tbn, 29.97 tbc
Metadata:
creation_time : 2013-07-31 00:48:33
handler_name : Apple Alias Data Handler
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Press [q] to stop, [?] for help
frame= 180 fps= 16 q=-1.0 Lsize= 828kB time=00:00:06.00 bitrate=1129.2kbits/s
video:826kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.177851%
[libx264 # 0x7fa67401fa00] frame I:2 Avg QP:32.23 size: 20942
[libx264 # 0x7fa67401fa00] frame P:178 Avg QP:41.03 size: 4515
[libx264 # 0x7fa67401fa00] mb I I16..4: 90.1% 0.0% 9.9%
[libx264 # 0x7fa67401fa00] mb P I16..4: 6.8% 0.0% 0.0% P16..4: 16.8% 0.6% 0.2% 0.0% 0.0% skip:75.5%
[libx264 # 0x7fa67401fa00] final ratefactor: 37.56
[libx264 # 0x7fa67401fa00] coded y,uvDC,uvAC intra: 1.2% 16.4% 2.1% inter: 0.1% 3.4% 0.1%
[libx264 # 0x7fa67401fa00] i16 v,h,dc,p: 49% 23% 4% 24%
[libx264 # 0x7fa67401fa00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 8% 36% 8% 12% 9% 8% 4% 2%
[libx264 # 0x7fa67401fa00] i8c dc,h,v,p: 88% 6% 5% 1%
[libx264 # 0x7fa67401fa00] ref P L0: 47.7% 22.0% 16.7% 5.7% 7.9%
[libx264 # 0x7fa67401fa00] kb/s:1126.21
Does anyone have any experience in this area?
I've tried so far with ffmpeg (using libx264 and libaacplus) muxing into mpegts over udp, but that mpegts muxer is obviously broken (confirmed from several different sources).
I've also tried with vlc, but it can only encode AAC-LC and not HE-AAC v2 (aacplus).
Anyway, the problem I need to solve is to have several different geographic locations, covered with webcams and I need udp to be able to have incoming streams all the time and not to worry about networks ups and downs (udp will simply continue sending packets when the network is up again). So, did any of you have any experience using streaming live media using h264 with aacplus over udp protocol and if yes, can you please give me any links or directions how to accomplish it.
Thanks a lot in advance.
I'm developing a system which is kind of a DVR that must periodically record a h264 file from a video device and at the same time provide a local preview to allow for adjusting the video parameters and camera view. Although I am no expert at all in this field, I had a relative success streaming h264 over UDP, so I'll try to share what didn't and what did work out for me, which was all based on ffmpeg as a server (no audio in my case).
Initially I had set up my application to simultaneously record the video to a file and feed it to a .ffm file for ffserver to stream it up using RTP/UDP for the camera preview. The problem with that approach was exactly that when the feeding ffmpeg process stopped to change the video file, the preview would stop and never resume although the subsequent ffmpeg process would have already started feeding ffserver again. With RTP ffserver apparently complains the frames timestamp started back at 0 instead of continuing where they have stopped. Then I realized that if I were able to send the h264 packets over pure UDP I would get exactly the same effect you described, with preview resuming as soon as the next ffmpeg process would take over.
While trying to understand ffmpeg documentation I also tried using the mpegts format, but doing that I was getting MPEG2 video at the player on the other end (this shows a multicast address, but it also worked for a specific target):
$ ffmpeg -y -f video4linux2 -i /dev/video2 -vcodec libx264 -preset ultrafast /mnt/hd/video.mp4 -an -f mpegts udp://224.124.0.1:5000
ffmpeg version N-35860-g62adc60, Copyright (c) 2000-2011 the FFmpeg developers
built on Dec 16 2011 09:47:41 with gcc 4.5.3
configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/man --disable-debug --enable-shared --disable-static --enab
le-pthreads --enable-libtheora --enable-libvorbis --enable-gpl --enable-version3 --enable-postproc --enable-swscale --enable-avfilter --enable
-libx264 --enable-libvpx --enable-librtmp --disable-indev='v4l,dv1394'
libavutil 51. 32. 0 / 51. 32. 0
libavcodec 53. 46. 0 / 53. 46. 0
libavformat 53. 26. 0 / 53. 26. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 53. 0 / 2. 53. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
[video4linux2,v4l2 # 0x8a96b00] Estimating duration from bitrate, this may be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video2':
Duration: N/A, start: 1325538250.366878, bitrate: 27620 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240, 27620 kb/s, 29.97 tbr, 1000k tbn, 29.97 tbc
[buffer # 0x8a9d8c0] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[buffer # 0x8a9c860] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[libx264 # 0x8a97780] using cpu capabilities: MMX2 Cache64
[libx264 # 0x8a97780] profile Constrained Baseline, level 1.3
[libx264 # 0x8a97780] 264 - core 120 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=0 ref=
1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11
fast_pskip=1 chroma_qp_offset=0 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=
0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
[mpegts # 0x8a98100] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts
Output #0, mp4, to '/mnt/hd/video.mp4':
Metadata:
encoder : Lavf53.26.0
Stream #0:0: Video: h264 (![0][0][0] / 0x0021), yuv420p, 320x240, q=-1--1, 30k tbn, 29.97 tbc
Output #1, mpegts, to 'udp://224.124.0.1:5000':
Metadata:
encoder : Lavf53.26.0
Stream #1:0: Video: mpeg2video, yuv420p, 320x240, q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> libx264)
Stream #0:0 -> #1:0 (rawvideo -> mpeg2video)
Press [q] to stop, [?] for help
On the client PC I was able to watch the video with ffplay, and it was indeed in MPEG2 format:
$ ffplay -f mpegts udp://224.124.0.1:5000
ffplay version N-35860-g62adc60, Copyright (c) 2003-2011 the FFmpeg developers
built on Dec 16 2011 09:47:41 with gcc 4.5.3
configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/man --disable-debug --enable-shared --disable-static --enable-pthreads --enable-libtheora --enable-libvorbis --enable-gpl --enable-version3 --enable-postproc --enable-swscale --enable-avfilter --enable-libx264 --enable-libvpx --enable-librtmp --disable-indev='v4l,dv1394'
libavutil 51. 32. 0 / 51. 32. 0
libavcodec 53. 46. 0 / 53. 46. 0
libavformat 53. 26. 0 / 53. 26. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 53. 0 / 2. 53. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
[mpegts # 0x80f02e0] Unable to seek back to the start
[mpeg2video # 0x8111a00] mpeg_decode_postinit() failure
Last message repeated 6 times
[mpegts # 0x80f02e0] max_analyze_duration 5000000 reached at 5005000
[mpegts # 0x80f02e0] Estimating duration from bitrate, this may be inaccurate
Input #0, mpegts, from 'udp://224.124.0.1:5000':
Duration: N/A, start: 255.420433, bitrate: 104857 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 104857 kb/s, 30.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
VLC also worked to play the stream, but only after specifying the switch --demux ffmpeg (thanks to this):
vlc -vv --demux ffmpeg udp://#224.124.0.1:5000
Since I also wanted the preview to be in h264 but I already had it encoding the file, I tried to use the copy codec for the UDP streaming, but ffmpeg failed with a segfault (versions included for reference):
ffmpeg -y -f video4linux2 -i /dev/video2 -vcodec libx264 -preset ultrafast /mnt/hd/video.mp4 -an -vcodec cop
y -f h264 udp://224.124.0.1:5000
ffmpeg version N-35860-g62adc60, Copyright (c) 2000-2011 the FFmpeg developers
built on Dec 16 2011 09:47:41 with gcc 4.5.3
configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/man --disable-debug --enable-shared --disable-static --enab
le-pthreads --enable-libtheora --enable-libvorbis --enable-gpl --enable-version3 --enable-postproc --enable-swscale --enable-avfilter --enable
-libx264 --enable-libvpx --enable-librtmp --disable-indev='v4l,dv1394'
libavutil 51. 32. 0 / 51. 32. 0
libavcodec 53. 46. 0 / 53. 46. 0
libavformat 53. 26. 0 / 53. 26. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 53. 0 / 2. 53. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
[video4linux2,v4l2 # 0x92c7b00] Estimating duration from bitrate, this may be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video2':
Duration: N/A, start: 1325539132.411691, bitrate: 27620 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240, 27620 kb/s, 29.97 tbr, 1000k tbn, 29.97 tbc
[buffer # 0x92ce860] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[libx264 # 0x92c8780] using cpu capabilities: MMX2 Cache64
[libx264 # 0x92c8780] profile Constrained Baseline, level 1.3
[libx264 # 0x92c8780] 264 - core 120 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=0 ref=
1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11
fast_pskip=1 chroma_qp_offset=0 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=
0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to '/mnt/hd/video.mp4':
Metadata:
encoder : Lavf53.26.0
Stream #0:0: Video: h264 (![0][0][0] / 0x0021), yuv420p, 320x240, q=-1--1, 30k tbn, 29.97 tbc
Output #1, h264, to 'udp://224.124.0.1:5000':
Metadata:
encoder : Lavf53.26.0
Stream #1:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240, q=2-31, 27620 kb/s, 90k tbn, 29.97 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> libx264)
Stream #0:0 -> #1:0 (copy)
Press [q] to stop, [?] for help
Segmentation fault
Although less than ideal, specifying the format h264 for the UDP streaming part led to a second concurrent h264 conversion, but it worked:
$ ffmpeg -y -f video4linux2 -i /dev/video2 -vcodec libx264 -preset ultrafast /mnt/hd/video.mp4 -an -f h264 -preset ultrafast udp://224.124.0.1:5000
ffmpeg version N-35860-g62adc60, Copyright (c) 2000-2011 the FFmpeg developers
built on Dec 16 2011 09:47:41 with gcc 4.5.3
configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/man --disable-debug --enable-shared --disable-static --enab
le-pthreads --enable-libtheora --enable-libvorbis --enable-gpl --enable-version3 --enable-postproc --enable-swscale --enable-avfilter --enable
-libx264 --enable-libvpx --enable-librtmp --disable-indev='v4l,dv1394'
libavutil 51. 32. 0 / 51. 32. 0
libavcodec 53. 46. 0 / 53. 46. 0
libavformat 53. 26. 0 / 53. 26. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 53. 0 / 2. 53. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
[video4linux2,v4l2 # 0x913ab00] Estimating duration from bitrate, this may be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video2':
Duration: N/A, start: 1325539689.729735, bitrate: 27620 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240, 27620 kb/s, 29.97 tbr, 1000k tbn, 29.97 tbc
[buffer # 0x9141840] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[buffer # 0x913e480] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[libx264 # 0x913b780] using cpu capabilities: MMX2 Cache64
[libx264 # 0x913b780] profile Constrained Baseline, level 1.3
[libx264 # 0x913b780] 264 - core 120 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=0 ref=
1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11
fast_pskip=1 chroma_qp_offset=0 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=
0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
[libx264 # 0x913c820] using cpu capabilities: MMX2 Cache64
[libx264 # 0x913c820] profile Constrained Baseline, level 1.3
Output #0, mp4, to '/mnt/hd/video.mp4':
Metadata:
encoder : Lavf53.26.0
Stream #0:0: Video: h264 (![0][0][0] / 0x0021), yuv420p, 320x240, q=-1--1, 30k tbn, 29.97 tbc
Output #1, h264, to 'udp://224.124.0.1:5000':
Metadata:
encoder : Lavf53.26.0
Stream #1:0: Video: h264, yuv420p, 320x240, q=-1--1, 90k tbn, 29.97 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> libx264)
Stream #0:0 -> #1:0 (rawvideo -> libx264)
Press [q] to stop, [?] for help
On the client side ffplay repeatedly complained about some missing information, but after some seconds it finally showed up the video, which was ok but a bit choppy:
$ ffplay -f h264 udp://224.124.0.1:5000
[h264 # 0xa0be740] non-existing PPS referenced
[h264 # 0xa0be740] non-existing PPS 0 referenced
[h264 # 0xa0be740] decode_slice_header error
[h264 # 0xa0be740] no frame!
(...)
[h264 # 0xa0be740] non-existing PPS referenced
[h264 # 0xa0be740] non-existing PPS 0 referenced
[h264 # 0xa0be740] decode_slice_header error
[h264 # 0xa0be740] no frame!
[h264 # 0xa0e72e0] max_analyze_duration 5000000 reached at 5013967
[h264 # 0xa0e72e0] Estimating duration from bitrate, this may be inaccurate
Input #0, h264, from 'udp://224.124.0.1:5000':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 320x240, 47.27 fps, 29.97 tbr, 1200k tbn, 59.94 tbc
[h264 # 0xa0be740] Missing reference picture
[h264 # 0xa0be740] decode_slice_header error
[h264 # 0xa0be740] concealing 300 DC, 300 AC, 300 MV errors
[h264 # 0xa0be740] Missing reference picture 0KB sq= 0B f=0/0 0/0
[h264 # 0xa0be740] decode_slice_header error
[h264 # 0xa0be740] mmco: unref short failure
[h264 # 0xa0be740] concealing 300 DC, 300 AC, 300 MV errors
10.78 A-V: 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0
I then tried VLC with the same ''--demux ffmpeg'' switch; it also complained about SPS/PPS (don't know what it is about yet) but in the end it played the video really smoothly:
$ vlc -v --demux ffmpeg udp/h264://#224.124.0.1:5000
VLC media player 1.1.12 The Luggage (revision exported)
Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS")
Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE")
[0x943346c] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
Blocked: call to setlocale(6, "")
Blocked: call to setlocale(6, "")
[0x94cde8c] qt4 interface error: Unable to load extensions module
[0x96720e4] h264 demux error: this doesn't look like a H264 ES stream, continuing anyway
[0x963989c] access_udp access warning: unimplemented query in control
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x967328c] packetizer_h264 demux packetizer warning: waiting for SPS/PPS
[0x94be644] main input error: Invalid PCR value in ES_OUT_SET_(GROUP_)PCR !
[0xb2a325f4] avcodec decoder warning: disabling direct rendering
[0x96dfac4] main video output warning: vlc_object_find_name(postproc) is not safe!
[0x94c2474] signals interface warning: signal 17 overridden (0xb6f31030)
[0x94c2474] signals interface warning: /usr/lib/qt/lib/libQtCore.so.4(?)[(nil)]
[0x96dfac4] main video output warning: late picture skipped (32703 > -4)
I'm still trying to figure out what is missing, but the results are pleasing already. After VLC is playing I can stop the feeding ffmpeg that playback pauses and resumes right away when I restart ffmpeg on the other end.
Hope this can be of any help, and please let me know if you have any additional info on using h264 as the chosen format in place of mpegts - I suspect this missing SPS/PPS info might have something to do with it.