video-encoding

问题 when I want to make nvEncodeApp NVENC SDK sample on centos 6.4 I got this error : /usr/bin/ld: cannot find -lnvidia-encode when I checked Make file the path to this library was here : -L/usr/lib64 -lnvidia-encode -ldl I checked /usr/lib64 but there is not any libnvidia-encode there: how this library will add to this path ,whats this library ? Using nvidia-smi should tell you that: nvidia-smi Tue Jul 16 20:19:20 2013 +------------------------------------------------------+ | NVIDIA-SMI 4.304

问题 I am trying to Convert SWF into other video formats. Currently I am using JAVAE (Java Audio Video Encoder). In it's documentation it says that it supports SWF encoding and decoding but I don't know which codec to use. I have tried with different codecs and below is my Java code but it throws following exception. Please let me know what wrong I am doing. I wan to convert swf to flv or any other format Exception in thread "main" it.sauronsoftware.jave.InputFormatException: I/O error occured at

问题 For AAC ("libfaac") audio encoder, how can I specify the "MPEG Version" to either "MPEG-4" or "MPEG-2" through FFmpeg's command? 回答1: When using libfaac, FFmpeg hard-codes the MPEG version to MPEG-4. You can observe this in libfaac.c , line 118. faac_cfg->mpegVersion = MPEG4; If you want to change it, you will have download the FFmpeg source, modify this line to use MPEG2 instead, and recompile FFmpeg with the appropriate configuration (including --enable-libfaac ). This works and produces a

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last year . I am trying to create a Roku channel that could stream video content from a Youtube Channel. I am aware of a Linux command-line program (youtube-dl) that can let me programmatically download videos that I can potentially reference via Youtube video ids obtained by the Youtube API results. My issue with youtube-dl

问题 I'm trying to wrap my head around NEON intrinsics, and figured I could start with an example and ask some questions. In this experiment I want to convert 32bit RGB to 16bit BGR. What would be a good start in converting the following code to use NEON intrinsics? The problem I'm having here is that 16bit doesn't match any intrinsic that I can see. There's 16x4 16x8, etc.. but I'm just having little luck wrapping my thoughts around how I need to approach this. Any tips? Here's the code I'm

问题 I make nvEncodeApp successfully but when I run it my output is like this ./nvEncoder -infile=HeavyHandIdiot.3sec.yuv -outfile=outh.264 -width=1080 -height=1080 > NVEncode configuration parameters for Encoder[0] > GPU Device ID = 0 > Input File = HeavyHandIdiot.3sec.yuv > Output File = outh.264 > Frames [000--01] = 0 frames > Multi-View Codec = No > Width,Height = [1080,1080] > Video Output Codec = 4 - H.264 Codec > Average Bitrate = 0 (bps/sec) > Peak Bitrate = 0 (bps/sec) > BufferSize = 0 >

问题 I am trying to measure the variation in the bandwidth required when a video is played over the network. For this purpose, i need to make a graph of the bandwidth required to play the video continuously at any time during the video. I tried processing the video with gstreamer but it gives me the bit rate of the decoded[not encoded] video which is more or less constant. Is there a way to get the encoded bit rate of a video over time? 回答1: Since i got no answers here, i will post the solution

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . I have an app that allows the user to either select a video from their library or take video with the camera and them upload it to a server. I need the video to be in a particular format (m4v, h.264, AAC) when I send it to the server. In iOS 5 and perhaps earlier, the video records as a .mov file (albeit with h

问题 I'm looking for a converter that can encode input files to amv format output. I've found this project, but it looks somewhat outdated and not maintained. And the problem of that is that it supports a very limited variety of input file types. Do you know of a solid and reliable amv encoder (any API or tool that can be invoked from .NET), or can you recommend on the one I mentioned? UPDATE I use FFmpeg for my application for all other types, the problem is that the .AMV format which is a key

问题 I was trying to learn a bit about h264 by looking at the bitstream of a video file with a hex editor. I found here the start codes for a video object planes (0x000001b6) and for i-frames (0x000001b600). But I can't find many of those bytes in video files. Most of the time those start codes appear at the beginning of a file with only a few bites in between. I expected them to show up very regularly, in equal distance all over the file!? Is is even ok to look at a file with a hex editor this