h.264

Theoretically both IOS and ANDROID will play h.264 files, but I can't figure out a setting to encode them so they actually work cross platform. Does anybody know how to encode for both Android and IOS using one file? p.s. I know all about html5 video and the fallback sources, I just don't want to encode and host a new video for every device that comes down the pike. Here's the ffmpeg command line we use to transcode to MPEG-4 h.264 in our production environment. We've tested the output on several Android devices, as well as iOS. You can use this as a starting point, just tweaking things like

I use gstreamer for playing RTSP stream from IP cameras (like Axis.) I use a command line like this: gst-launch-0.10 rtspsrc location=rtsp://192.168.0.127/axis-media/media.amp latency=0 ! decodebin ! autovideosink and it work fine. I want to control it with a gui in pygtk so I use the gstreamer python bindings. I've wrote this piece of code: [...] self.player = gst.Pipeline("player") source = gst.element_factory_make("rtspsrc", "source") source.set_property("location", "rtsp://192.168.0.127/axis-media/media.amp") decoder = gst.element_factory_make("decodebin", "decoder") sink = gst.element

Is it possible to do completely lossless encoding in h264? By lossless, I mean that if I feed it a series of frames and encode them, and then if I extract all the frames from the encoded video, I will get the exact same frames as in the input, pixel by pixel, frame by frame. Is that actually possible? Take this example: I generate a bunch of frames, then I encode the image sequence to an uncompressed AVI (with something like virtualdub), I then apply lossless h264 (the help files claim that setting --qp 0 makes lossless compression, but I am not sure if that means that there is no loss at any

I am working on an online TV service. One of the goals is for the video to be played without any additional browser plug-ins (except for Flash). I decided to use MP4, because it is supported by the majority of HTML5 browsers and by Flash (for fallback). The videos are transcoded from ASF on a server by FFMpeg. However, I found that MP4 cannot be live-streamed because it has a moov atom for metadata that has to specify the length. FFMpeg cannot directly stream mp4 to stdout, because it puts the moov at the end of the file. ( Live transcoding and streaming of MP4 works in Android but fails in

I would like to encode a set of Bitmaps that I have into an h264. Is this possible via MediaEncoder? I have written some code in order to do it, but the output cannot be played in any media player I have tried. Here's some of the code that I primarily borrowed from other sources that I found on Stackoverflow. mMediaCodec = MediaCodec.createEncoderByType("video/avc"); mMediaFormat = MediaFormat.createVideoFormat("video/avc", 320, 240); mMediaFormat.setInteger(MediaFormat.KEY_BIT_RATE, 125000); mMediaFormat.setInteger(MediaFormat.KEY_FRAME_RATE, 15); mMediaFormat.setInteger(MediaFormat.KEY_COLOR

I would really appreciate some help with the following issue: I have a gadget with a camera, producing H264 compressed video frames, these frames are being sent to my application. These frames are not in a container, just raw data. I want to use ffmpeg and libav functions to create a video file, which can be used later. If I decode the frames, then encode them, everything works fine, I get a valid video file. (the decode/encode steps are the usual libav commands, nothing fancy here, I took them from the almighty internet, they are rock solid)... However, I waste a lot of time by decoding and