mpeg-4 Questions
3
Solved
I am trying to parse out ISO/IEC 14496-12 based files (essentially MPEG-4 movies). There are a few boxes are not in the standards (or on the MP4 Registration Authority lists), but are in real-world...
Don asked 10/2 at 4:41
2
I'd like to reach some sort of definitive answer for the following questions:
Is alpha transparency supported in MPEG-4-based codecs?
Is there any way to be reasonably certain that there is no al...
2
Solved
I have two questions regarding the Group-of-Pictures (GOP) in MPEG4 Video (both for MPEG4 Part2 and H.264):
How can I extract the GOP structure and size of a video sequence using FFmpeg? I know t...
4
Solved
Is there any way to embed cover art to m4a files?
This one works well for mp3 but doesn't work for m4a
ffmpeg -i tests/in.m4a -i cover.jpg -map 0:0 -map 1:0 -acodec copy \
-id3v2_version 3 tests...
4
Solved
I have many MPEG-4 files transcoded from various digital camera formats for which the file system modified date is correct. I'd like to set the "Media Created" tag to match. This can be done manual...
Abbotsen asked 2/4, 2012 at 18:17
4
Solved
Long Story:
There is an H264/MPEG-4 Source
I can able to connect this source with RTSP protocol.
I can able to get raw UDP packets with RTP protocol.
Then send those raw UDP packets to a Decoder[...
Danella asked 5/10, 2011 at 17:27
2
Solved
While using MediaRecorder, we don't have pause/resume for API level below 24.
So there can be a way to do this is:
On pause event stop the recorder and create the recorded file.
And on resume sta...
Tyrolienne asked 4/9, 2016 at 20:55
2
Solved
I want to play recorded mp4 data using Android Media Player,but when try to play this error showed :
java.io.IOException: setDataSource failed.
at android.media.MediaPlayer.setDataSource(MediaPlay...
Horrified asked 22/10, 2015 at 4:41
1
Solved
Is there any way to get MPEG-4 video fils's profile-code using standard Android API?
Sample profile-codes are: baseline, main, high and so on.
I don't want to include ffmpeg binary in the androi...
Deportee asked 11/1, 2017 at 20:26
4
I am trying to fetch the dimensions (Height and width) from a H264 stream. I know that to fetch the same details from a mpeg2 stream you have to look at the four bytes following the sequence header...
Mckinleymckinney asked 18/6, 2011 at 8:42
0
I'm using MediaCodec and MediaExtractor to play video at variable rates, both forwards and backwards. The code is using something like SpeedControlCallback to establish inter-frame pauses - feeding...
Jailbird asked 15/9, 2015 at 10:24
4
Solved
I have downloaded the MPDs "http://dash.edgesuite.net/adobe/hdworld_dash/HDWorld.mpd" and all related .m4s files.
I tried running it on VLC player. But the format is not recognized by VLC player.
...
Raki asked 3/12, 2012 at 11:24
1
I'm writing a video decoder (using FFMPEG/AVCodec) for a custom implementation of an mpeg4 video stream. The peculiarity of this video stream is that it could split into many "son" streams creating...
Babblement asked 2/8, 2011 at 15:8
2
Solved
Are these both the same? Is H.264 codec of MPEG-4? What if I need to convert flv to high definition H.264 video format? I want make online tv streaming and want to use PHP or Python.
Lockridge asked 7/5, 2012 at 6:7
2
The h.264 hardware compression card procedures NALU's from captured video.
I am trying to wrap the NALU's into FLV and I almost succeed.
I don't know how to fill the Composition Time field in FLV f...
0
I am planning to convert a video file to another video file with different bitrate, fps, etc.
Bascially I follow the examples in
http://bigflake.com/mediacodec
However, Log shows error of no sync...
Hoshi asked 3/3, 2014 at 5:20
1
I'm using AVAudioRecorder to record an audio file of varying length with the following configuration:
- (AVAudioRecorder*)recorder
{
if(!_recorder) {
// Set the audio file
NSArray *pathComponen...
Tandratandy asked 16/12, 2013 at 21:1
0
I am currently trying to extract each frame time stamp from an MPEG-4 file that has been recorded using a GoPro.
I want the exact time at which the frame has been captured by the camera, to couple...
1
Solved
According to ffmpeg manual, setting -g is to define space between "I" frames, and setting -bf to use "B" frames. The former I got, but the latter not.
The goal: I'm trying to have a video with a G...
2
Solved
The native Media Player coming with the android SDK doesnt play most of the MPEG4 format video files. Is there an alternate 3rd party media players that I can use? If yes how can i use then? ...
Polytheism asked 6/6, 2011 at 21:16
4
Solved
1
Solved
I stream webcam data to my client.
I can see the data is arriving by listening on('data'). However, when I create it I am not able to view it and it's probably garbage data or missing some headers...
2
Solved
I'm writing an Android project where I'm recording several audio files. Therefore, I'm setting the following parameters. The recording works fine.
recorder.setAudioSource(MediaRecorder.AudioSourc...
Flabby asked 18/6, 2012 at 12:50
1
Solved
So basiclly I read this, http://www.gdcl.co.uk/2011/June/UnregisteredFilters.htm.
Which tells you how to use filters without registering them. There are two methods, new and using a private CoCrea...
Benita asked 25/6, 2012 at 15:10
2
Solved
During the last few weeks, I had the opportunity to read two documents:
The MPEG-4 Part 2 specification (ISO/IEC 14496-2), which people just call "mpeg-4"
The MPEG-4 Part 10 specification (ISO/IE...
Simeon asked 21/3, 2012 at 7:5
1 Next >
© 2022 - 2024 — McMap. All rights reserved.