Also known as MPEG-4/AVC, an advanced video encoding standard, widely used in Blu-ray and streaming video.

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4
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1answer
577 views

mix audio with h264 mp4 video with ffmpeg

I have 2 files : Input #0, wav, from '105426_1.wav': Duration: 00:00:09.98, bitrate: 1312 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 41000 Hz, stereo, s16, 1312 kb/s and: ...
4
votes
1answer
3k views

VLC (Server) re-stream Security Camera Feed

I purchased a Swann Home Security DVR system and was hoping for some help on how to duplicate the streaming video on my server. In order to get their web view (streaming video in the browser) to work,...
2
votes
1answer
2k views

H.264 decoding error log from RTSP stream

I am getting the following H264 error log. This log comes while decoding an RTSP video stream with help of FFMPEG. The picture displayed is blurred after 5/6 seconds. The picture would recover it from ...
1
vote
1answer
373 views

how to convert a video to a MOV file with h264 yuvj420p and pcm u8

I want to convert some videos to be playable on a Canon digital camera. The videos from the Canon PowerShot camera have the following specifications: Video: h264 (Constrained Baseline) (avc1 / ...
1
vote
1answer
468 views

Firefox: H.264 Video Support

I have Firefox 34 and OpenH264 Video Codec provided by Cisco Systems v1.1 addon installed and enabled. The problem is that Firefox can not play H.264 video. I used this page for testing and here is ...
1
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1answer
193 views

Capture and encode HDMI signal on FreeBSD

I am looking for a capture PCI-e card to encode HDMI source and stream on network. I want to "share" my HDMI sources to my Raspberry sinks in the LAN. I have found many PCI-e cards, but most of them ...
1
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1answer
204 views

H.264 profiles support of latest Flash Player (v11.6)

Does anyone know what profiles of H.264 videos latest Flash Player(currently 11.6) supports? Half an hour googling only gives an article from Adobe exactly about my question, which is old, and a page ...
1
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1answer
697 views

How to merge AAC audio stream and H.264 video, with increasing delay on audio?

I have an H.264 video stream and an AAC audio stream that are to be multiplexed into an MKV file. I've got this going mostly fine using mkvmerge on Linux, however for each set of streams I find that ...
0
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1answer
152 views

VLC shows distorted video when seeking

I have Fedora 23 installed with VLC 2.2.2-0.1.fc23. When I open any H.264 video in VLC, when seeking it does not seem to synchronize to I-Frame. The video is distorted for a few seconds. It works ...
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1answer
1k views

How to check is h264 mp4 file is correct?

I writing applcation which split live stream from web camera to multiple h264 mp4 files. Now I have some problems like missing keyframes and maybe another. Are there any tools to check my output ...
0
votes
1answer
528 views

Is this possible to do H264 CCTV DVR + FreeNAS + FTP?

Can I use the storage inside H264 CCTV DVR as my NAS (network-attached storage) and use Filezilla to access the files remotely?
5
votes
0answers
3k views

FFMPEG encoding settings for 1080/60fps/h264 - framedrops

I want to use latest ffmpeg to encode set of JPG frames to 1920x1080 60fps h.264 movie. I'm looking for set of parameters that will allow smooth playback of encoded video on fairly strong PC machines ...
4
votes
0answers
2k views

ffmpeg minimal requirements configuration for encoding and decoding h264 files

I'm trying to compile ffmpeg with minimal requirements in order to encode/decode with h264. So far my command line configuration is : ./configure --disable-yasm --disable-everything --enable-encoder=...
3
votes
0answers
2k views

optimise FFMPEG live stream THUMBNAIL

After testing many possibilities, I have a perfect command line for creating thumbnails from a live stream: ffmpeg -i rtmp://srvIp/h264.stream -r 1 -an -updatefirst 1 -y thumbnail.jpg It refreshes a ...
3
votes
0answers
4k views

Stream video with FFMPEG, “Output file does not contain any stream”

I would like to stream an H.264 encoded elementary stream wrapped in RTP headers to a port using FFMPEG. I have tried the following command lines to no avail... ffmpeg -i 1080p_1.h264 -f rtp -vcodec ...
3
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0answers
5k views

How to convert a mpeg4-aac video to mpeg-ts using MEncoder?

I know this can be done using FFMpeg and I have done it. The only problem here was that FFMpeg actually tries to "encode" the file while converting to mpeg-ts which I don't want. i.e. I just want to ...
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votes
0answers
2k views

Failed to convert a wmv file to mp4 with ffmpeg

i need a help with this command FFMPEG COMMAND: ffmpeg -y -i /input.wmv -vcodec libx264 -acodec libfaac -ac 2 -bufsize 20M -sameq -f mp4 /output.mp4 Output: ffmpeg version 1.0 Copyright (c) 2000-...
2
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0answers
325 views

H.264 encoder with clearer options for specifying minimum & maximum video bitrate?

I almost never get stuck with things like this and kinda figure things out myself... but I'm at a complete loss here. I've used Handbrake, X-Media Recode, and lots of other encoders and they're ...
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0answers
71 views

MS Expression Studio Fails to Detect MP4 Video

I have imported a H.264 MP4 video file into Microsoft Expression Encoder 4, however when I convert the video to the IIS Smooth Streaming VC-1 format, it only has audio with a green screen. How do I ...
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0answers
55 views

Does h.264 levels affect the quality of the output?

According to Wikipedia, the example for high resolution of level 4.0 is 2048x1024@30fps. But the resolution of the video ready to encode is 1280x960, which is about level 3.2. Is it better to set the ...
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0answers
45 views

Getting same quality with “baseline profile”?

I have a couple of videos taken in H.264 using the high profile and I want to convert them into a baseline profile while keeping the same quality and size so, that they can be easily played on an ...
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0answers
2k views

FFMPEG Lossless Video Output Options

I am looking for lossless video output options from FFMPEG that can be viewed without any special codecs or special players such as VLC. I want a basic use to be able to open up the video with a ...
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0answers
96 views

MPEG DASH with H264 + H265

I've tried to build an MPEG-DASH stream coding some bitrates in H264 and some others in H265. In a nutshell I'm trying to code the same video with ffmpeg for the lower bitrates in H264 and the highest ...
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0answers
911 views

Difference between downscaling 1080p to 720p in real time and downscaling during encoding?

Suppose a high quality, uncompressed video is re-encoded twice, with almost identical encoding settings at a relatively low bitrate of 4mbps, but at different resolutions, first at 1080p, and then at ...
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0answers
140 views

H.264 Pro Recorder Files not closed properly

I have several files that were recorded using a BlackMagic Design H.264 Pro Recorder. It would appear that somewhere in the process, the recorder did not close out the file properly when the ...
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0answers
1k views

how to reduce h264 annex B NAL unit sizes to avoid IP fragmentation?

I'm trying to stream a video over to a terminal using RTP. The video is coded in h.246. I'm using ffmpeg to extract the byte stream according to h.264 annex B : ffmpeg -i test.h264 -vcodec copy -vbsf ...
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0answers
265 views

What application and codec can I use to encode raw HD video from Fraps?

I have large (4 GB each) HD video files (.avi) recorded using Fraps. What application and codec (freeware) can I use to encode these videos and make them smaller? I'd like my videos to be watchable ...
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0answers
529 views

Best H.264 encoding settings to target low-bandwidth audience

We are building a video streaming website targeting audiences with 56kbps internet connection. We've chosen the H.264 codec to prepare the videos, now there are some challenges: 1) Should we use VBR (...
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0answers
12 views

vprofile option in h264 is not working for me

I'm using shotcut to convert my videos. in additional options I enter movflags=+faststart preset=placebo vprofile=baseline level=3.0 But I get the following log: [libx264 @ 000000000ac2f020] [Eval ...
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votes
0answers
34 views

Video delay when using filters in ffmpeg

I try to make video of sport event using raspberry pi. Drawtext filter seems good option to write score on the video. I have problem with synchronization / delay of video. I can see changing points ...
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0answers
27 views

Loss packets/loss pixels Live555/OPENRTSP

I use live555/openRTSP for receiving/record video h264 from 4 ipcam. I have 2 problems: I have lost pixels(but if I opened the sem video with vlc, I don't see the loss pixels) Lost packets in ...
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0answers
22 views

How to smooth out jaggy lines with AviSynth?

I have a quite crappy quality video in 480p, I then transcode it with AviSynth and MeGUI. I use a few scripts to enhance the quality, as well as upscaling the video to 720p. As you can see in the ...
0
votes
0answers
161 views

Converting H265 to H264 causes artifacts in dark areas

I'm not sure if this is the right place to ask this, but I'll try anyways. I'm trying to convert a lot of HEVC (H265) videos to AVC (H264) and I'm getting all these nasty artifacts in dark areas. Does ...
0
votes
0answers
17 views

MeGUI H.264 - Always encode with 4 reference frames

I had already set the number of reference frames to 16 but the final output keep showing 4 ref frames. I tried to use 15 ref frames instead but it still won't work. Any ideas how to solve this?
0
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0answers
105 views

How to set double fps for tbc option of video

I need to set tbc option for output video. For example, input video has 25 fps with 50 tbc and my encoded video has 25fps with 25 tbc. I used settb and video_track_timescale but these options did not ...
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votes
0answers
25 views

create AVC_Intra from uncompressed in best quality

I have some 720p uncompressed YUV video and I need to transcode this video into an AVC-Intra using the best possible quality. The best possible Quality is needed, because the video probably will be ...
0
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0answers
118 views

Unable to trim piped video stream with FFmpeg

Trying to trim a video file that gets piped from the standard input, it only works when the start duration is greater than 2.0s for some videos (fails for ones captured from an Android phone to be ...
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0answers
126 views

FFMPEG / x264: can I use pass 1 from one encoding session as pass 2 for another?

Question: Is it legal to use a "pass 1" encoding of a source video at one resolution/bitrate as the input to a "pass 2" encoding of the same source at a different resolution/bitrate? I tried it and ...
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0answers
57 views

Which audio codec is preferable to use for mp4 video?

I use standart codec for encoding and i don't like the quality of audio even if there is larger audio bitrate. ffmpeg -y -i input.avi -i watermark.png -filter_complex \"scale=-2:'min(360,ih)',overlay=...
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0answers
144 views

Sony Vegas: Will re-rendering a video with identical video encoding reduce quality?

I have edited and exported a video in Sony Vegas Pro 13 using the preset 1920x1080-30p video template (mp4, AVC, 16 Mbps). However, I need to reedit the audio of the video, and would like to know if ...
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0answers
286 views

Ffmpeg same command, different results local vs server. Video shakes, invalid dropping

I am trying to concat some files without reencode so I use ffmpeg -f concat -i list.txt -c copy out.mp4 On local it works perfect but on a dedicated server video shakes! Is like video is frozen ...
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0answers
190 views

ffmpeg synchonization of libfdk_aac (or libfacc) and libx264

How to synchronize libfdk_aac and libx264 streams? ffmpeg -i pipe_libfdk_aac.fifo -i pipe_libx264.fifo -c copy -f flv flv_stream_pipe_or_rtmp.output I'm always receiving the same asych in all cases:...
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0answers
520 views

OpenH264 won't work properly on Waterfox, what am I missing?

All the boxes on https://www.youtube.com/html5 appear to be ticked and yet mp4 youtube videos fail to load. The changes I have made so far to about:config I shall list here: media.fragmented-mp4....
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0answers
370 views

ffmpeg error when encoding h264 mp4 video

I'm trying to do a simple encoding of an mp4 in h264 to mp4 but I keep getting the error: Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width ...
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0answers
471 views

How to multicast live H264 without transcoding?

I have a live H264 stream (hardware encoded from the webcam) and I'd like to stream it over the network using multicast on a Linux platform. Because the platform has limited CPU power, and the data ...
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0answers
400 views

XP Can't display H.264 video

A friend's win2000 box died so I gave him an old XP box of mine. I updated XP and installed the final rollup. All good. I installed the software he owned and all works well. Finally ran IE-6 (I ...
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0answers
247 views

H264 in Firefox on Windows 7 N without Media Feature Pack?

How can I play H264 videos and MP3 audio in Firefox on Windows 7 N Professional without installing Windows Media Feature Pack? I know you can use GStreamer on Linux, but it doesn't work on Windows. I'...
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0answers
646 views

How can I repair a damaged H.264 video stream from a security camera?

I have a security camera file in H.264 format. It cannot be converted due to error messages stating the file is damaged. Is there any way to repair this single 12 MB file so it can be converted to a ...
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0answers
75 views

AMD Opteron 248 H264

Would an AMD Opteron 248 CPU machine handle slightly faster than real time H264 encoding, using something like Sorenson Squeeze 8?
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384 views

A way to stream from a v4l2 device?

I have a Arch Linux server and I'm currently using the mjpeg format to stream a security camera. The problem is that mjpeg is a bad format in terms of compression. It compress frames individually so ...