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

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43 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 ...
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0answers
16 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 ...
0
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1answer
17 views

Efficient re-encoding of MPEG-2 cartoon animation

I have some cartoon animation stored in MPEG-2 video that I would like to convert to MPEG-4/h264. The MPEG-2 video compression is rather bad, with both "small" JPEG artefacts around details in the ...
3
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0answers
978 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 ...
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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 ...
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2answers
53 views

What kind of image compression causes this color banding? [closed]

I have two images. The first is before undergoing lossy compression: Picture #1: The second is after undergoing lossy compression: Can anyone explain to me what is going on here? How does this ...
10
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2answers
8k views

Using FFmpeg to locate moov atom

I have a library of videos, all of which should have been adjusted for web-streaming by putting the moov atom ahead of the rest of the video. This allows playback to begin before the client has ...
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1answer
83 views

Analyzing h264 100GB video stream

I have a big file, an h264 stream video of a CCTV. I analyze this file with ffprobe and the result is this: [h264 @ 0000000002d24480] no frame! [h264 @ 0000000002d24480] non-existing PPS 0 referenced ...
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2answers
77 views

Convert all files in directory using FFMPEG

I'm trying to write a script to convert all the files in a directory to m4v, whilst trying to keep similar (if not the same) quality and compress the file to reduce the overall size. I've pieced ...
10
votes
3answers
23k views

How can I re-encode H.264 video with minimal quality loss?

I have a lot of MPEG-TS files (.TS container but H.264 video) and playback is fine except that when you skip forward/backward or fast forward it's very sluggish and gets pixelated, etc. I've been ...
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2answers
2k views

Is there a way to enable H.264 video in Firefox?

I know that Mozilla has taken an ideological stance against H.264 video, but I don't agree with it. (And I think I paid for a hardware decoder inside my graphics card anyway?) Is there any way I can ...
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1answer
53 views

How can I configure ffmpeg to encode h.264 video with a specific log2_max_frame_num_minus4 value?

I am working on a project where we are splicing HLS video segments. The HLS standard conveniently includes an #EXT-X-DISCONTINUITY directive to signal that the player should be ready for video that ...
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0answers
74 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
77 views

Editing metadata of H.264 MP4 videos

Windows lets me edit some metadata fields of H.264 encoded videos, such as “Title” and “Comments.” Such data seem to be preserved inside the file itself, which is what I want. Some applications make ...
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1answer
156 views

Skipping a frame without re-encoding H.264 video

I have an mp4/h.264 video which only contains I-Frames. I want to skip one of those I-frame without re-encoding the entire video. I tried this: ffmpeg -i "file.mp4" -vf select='not(eq(n\,10))' ...
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2answers
3k views

How to batch convert video files on OSX for AppleTV2 / iPhone4?

I'd like to have a solution to batch convert video files to a format suitable for the AppleTV2, iPad2, iPhone4, while at the same time preserving as much quality as possible; I want a single output ...
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0answers
45 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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1answer
2k views

What H.264/H.265 video compression parameters provide DVD-equivalent quality with better compression?

I have got a box of DVD video disks that I seek to get rid of while I'd like to keep the videos by converting them into MP4 files to store them on a hard drive. Considering superiority of the modern ...
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1answer
3k views

What bunch of ffmpeg scripts do I need to get HTML5-compatible “Video for everybody”?

What list of commands should I do in ffmpeg/mencoder/some_other_CLI_app to get a video in all the right formats to use Video for Everybody? i.e. Is there a subtlety that prevents there being a ...
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0answers
161 views

Using H.264 pixel format on Logitech C920 on Linux

This article states that it is possible to stream H.264 directly from webcams after kernel 3.2. I have the same camera (Logitech C920) and kernel 3.16 (of Debian testing), but the pixel format does ...
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0answers
98 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 ...
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1answer
64 views

Concatenate h264 bytestream using cat?

I need to merge few h264 files. Can I do simply trick like this: cat file0.h264 file1.h264 file2.h264 > out.h264 All h264 has the same encoding settings, except resolution and bitrate, and has ...
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votes
3answers
5k views

Video encoding: How much does the video file size increase with fps?

Given that the next blockbusters of e.g. Peter Jackson (The Hobbit) and James Cameron (Avatar 2) are going to be shot with a frame rate of 48 fps (or even more) - i.e. more than the usual 24 fps - I ...
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1answer
195 views

Using hardware encoders with third party apps?

I have the Avermedia Live Gamer HD (C985) PCIe Hardware Encoder that I used for video gameplay stream. If I used the new XSplit 1.1, in CODEC settings, I can choose Avermedia Encoder. If I use the ...
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0answers
317 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: ...
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1answer
234 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 ...
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0answers
187 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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votes
4answers
2k views

Are there any Mac OS X apps that convert Flash video (.flv) to h.264?

I’ve got some video from the web in Flash video format (.flv). I want to convert it to h.264. I’ve got Perian installed. QuickTime seems to play the video fine, but when I use any of the options to ...
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1answer
29k views

What are the differences between H.264 Profiles?

I was rendering a video in After Effects CS5 and when I was formatting it I chose the H.264 codec and in that format, it had a profile with Baseline, Main and High. So I did a little test – rendering ...
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1answer
9k views

how do I convert .iso to .mp4 without mounting with ffmpeg

The problem is - I want to convert .iso with dvd to .mp4 (h264/ac3), but I cannot mount it via mount -o loop, because I'm on a virtual machine that doesn't allow to do that. Googling doesn't help. ...
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0answers
205 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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votes
8answers
77k views

Converting or playing a .264 video file?

I recently bought a Chinese brand DVR (to record security cams). The DVR exports the video files with a ".264" extension. This is my first time ever dealing with this video format. Anyhow I've been ...
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5answers
1k views

Program to encode or mux h.264 streams in a SWF container [closed]

Is there any program that allows encoding a video file into a H.264 stream inside a SWF, or that allows muxing an existant (x264) stream into a SWF? If not, any other possible codec better than Flash ...
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1answer
246 views

ffmpeg-transcoded H.264 video does not play in Chrome

I am trying to transcode videos using ffmpeg. Following is the sample command. ffmpeg.exe -i 534.mp4 -vcodec libx264 -level 3.1 -b:v 396k -ar 48000 -ab 32k -s 100x100 -force_key_frames ...
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0answers
78 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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votes
2answers
21k views

Using ffmpeg to encode a raw video to H.264 format

On a Ubuntu 10.04, I am trying to encode a raw video (YUV format) to a H.264 encoded video using below ffmpeg commands: ffmpeg -i input.mp4 output.h264 but I get an error saying Unsupported ...
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0answers
127 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. ...
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0answers
652 views

Video Converter to H.264 with Nvidia Card using GPU acceleration (WMV to MP4)

I'm currently using an Nvidia 660 GTX trying to convert WMV files to .MP4 (h.264) using 2 pieces of software Xilisoft Video Converter Ultimate (latest version) Aimersoft Video Converter Ultimate ...
12
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2answers
44k views

Convert AVI to MP4 keeping the same quality

I want to compress an AVI file to MP4 using an h.264 codec. I could not get the same quality. How can I compress it? Original Video: Original Video Screen: FFmpeg console output (ffmpeg -i ...
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1answer
283 views

Shadowplay vs. NVenc?

I would like to understand the difference bitween NVidia Shadowplay and NVenc. Both allow you to encode videos in h.264 on the fly, but I understood that the first one use a h.264 dedicated chip ...
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0answers
445 views

FFmpeg/avidemux: fix packed B-frames

I'm transcoding some of my old mpeg4 videos (in avi containers) to h.264 with FFmpeg. Basically ffmpeg -i input.avi -c:v libx264 [x264 settings] -c:a libfdk_aac [aac settings] output.mp4 When doing ...
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votes
4answers
38k views

Joining H264 *without* re-encoding

I have two halves of a single show in two .MP4 files, encoded in H264. I would like to join them without re-encoding. Is this possible? I managed to create a joined video as a Quicktime file (.mov) ...
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1answer
107 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 ...
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1answer
2k views

FFMPEG Segfault Solutions

I'm trying to convert a bunch of movies into h.264 mp4's using FFMPEG. These movies are sourced from various portable camcorders such as the Flip Mino HD and the Kodak ZI8. One issue I'm having with ...
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0answers
117 views

Is it possible to intercept and record h.264 video streaming through my router?

I have a D-Link IP camera streaming h.264 video through my router to the Internet. I want to intercept this video and save it to my NAS. Is this possible? How should I approach this? I should add ...
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votes
1answer
13k views

What is the optimal video format/size for using in powerpoint?

My daughter's school is looking to embed some videos in their powerpoint slides. I am helping the teacher with conversion software and settings recommendations. I tend to prefer h.264 for it's ...
2
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1answer
527 views

Encoding H264 with windows ffmpeg results in first few seconds being “blocky”

I am using the following code to transcode a 10mbps high quality 1280x720 H264 mp4 into a lower quality H264 mp4 with our logo watermarked on the video. ffmpeg.exe -i test.mp4 -i watermark.png ...
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votes
2answers
8k views

FFmpeg extract clip - stream frame rate differs from container frame rate (x264, aac)

Summary H.264 video seems to have a really high frame rate that requires a scaling factor to the applied to the duration of video that I'm trying to extract (900x lower). Body I'm trying to extract a ...
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0answers
662 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 ...
4
votes
1answer
3k views

Convert AVI into H.264 that works inside an HTML5 Video tag

I would like to convert an existing black and white AVI into an H.264 video that works inside an HTML5 video tag. I'm currently using this ffmpeg command: ffmpeg -i file.avi -y -c:v libx264 ...