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Questions tagged [h.264]

H.264 or MPEG-4 Part 10, Advanced Video Coding (MPEG-4 AVC) is a video coding format.

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How do I get ffmpeg to encode using constant quality with h264_videotoolbox hardware acceleration for Macs?

Background info: Apple provides hardware acceleration support for encoding h264 and h265 videos through VideoToolbox. ffmpeg has built-in support for VideoToolbox through the h264_videotoolbox codec. ...
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3answers
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How do I encode mp4 files with H.264 (or x264) codec in AVIDemux?

I am trying to get AVIDemux set up with the X264 codec using this tutorial. The following is what goes down when I get to the ./configure --enable-mp4-output command Thomas-Phillipss-MacBook:x264 ...
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Does any OS X hardware contain on chip h.264 encoding/decoding?

I know that iOS devices have the h.264 instruction set on chip, which helps to dramatically reduce processing (and thus, power, battery drain, etc.) when watching native video. Has this been added to ...
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1answer
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VLC is dropping frames/stuttering when trying to play 1080p@60FPS video on rMBP w. 2.3 GHz Intel Core i7

When I try to play a video with 1920x1080 pixels and 60fps, in H.264 format using VLC player. It cannot keep up with this work and frequently drops frames (in other words, it's not playing it "...
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1answer
811 views

iOS cannot play “slow” or “veryslow” h.264 videos

I have encoded a video that I want to transfer to my iPad. Using FFmpeg, the settings are: ffmpeg -i input.mkv -c:v libx264 -preset veryslow -crf 32 output.mp4" When I have tried the presets ...
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1answer
112 views

Handbrake CLI Transcoded Video not Playable in Quicktime and Itunes

i am transcoding a bunch of videos with handbrake CLI. Therfore i use this presets: for i in `seq 0 10`; do f=$(($i-1)); HandBrakeCLI -i /Videofolder/ -t $i -O -f av_mp4 -e x264 -q 19 --h264-...
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4answers
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What is the best way to convert MPEG-2 videos to MP4 H.264?

I've been playing around, trying to find the best settings for converting DVD files (MPEG-2) to H.264 so that I can store everything in iTunes and watch it on the TV. Most of the stuff I have has been ...
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2answers
2k views

Is it possible to extend Quick Look to support h.265?

H.265 (or HEVC) is the official successor to H.264, with a significant reduction in bitrate for the same picture quality. However it's not supported widely yet, including in Quicktime, iTunes or ...
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5answers
14k views

Efficient MKV H.264 player with GPU decoding for Mac OS X

How can I play MKV files from QuickTime in Mavericks? I used to use Perian but it hangs and the other third party players are very inefficient as QuickTime is the most optimized software among the ...
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1answer
225 views

App to convert .h264 video on ipad to watch in “Photos” app?

I have a video clip with extention ".h264" on my online storage, and i want to save it in "Photos" app on my iPad and watch it there... Is there an app for that? I think it might need to be converted ...
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Handbrake x264 encodes .m4v/.mp4 not accepted in iTunes

It seems like every once in awhile, when using Handbrake to encode a DVD rip to x264 with either the mp4 or m4v extension, I can't add the resulting file to my iTunes Library. When dragging and ...
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1answer
376 views

Import H.264 videos into Final Cut Pro X

I tried to import an H.264 video into Final Cut Pro X without success. The software tells me that the file is not importable. VideoSpec shows me the following video track parameters: Format: H.264/...
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5answers
8k views

If iPhones/iPads don't support Flash, how do they play YouTube?

Which technology do iPhones and iPads use to play YouTube without supporting Flash?
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2answers
1k views

Is a Mac Mini G4 capable of 1080p MP4/H.264 playback?

Looking for a HTPC, and I noticed the G4 Mac Minis are relatively cheap to get. I just wonder, do they support 1080p playback for MP4/H.264 files?
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2answers
2k views

find video codec from terminal

I'm writing some shell scripts that automatically convert some video files. Except I don't want to run the conversion on files that are already h264 encoded. Is there a way I can tell via a terminal ...