Projects tagged ‘ffmpeg’ and ‘library’

A multimedia processing and authoring framework and a video playout server for television broadcasting.

This library is designed to simplify ffmpeg for use in media player applications written in pure C. It is thread safe, very fast, and has a pluggable architecture for output renderers for both audio ... [More] and video streams. This library does NOT remote control mplayer, or other engines, it is stand alone with libavcodec and libavformat making it very easy to tightly implement a media player into your application. Usage is very simple: mp_t *mp; mp = mp_new(); mp_load(mp, "filename.avi"); if (mp_num_streams(mp, CODEC_TYPE_AUDIO) > 0) mp_setup_stream(mp, 0, PLAYER_AUDIO_ALSA, NULL); if (mp_num_streams(mp, CODEC_TYPE_VIDEO) > 0) mp_setup_stream(mp, 0, PLAYER_VIDEO_XV , NULL); mp_open(mp); mp_play(mp); mp_wait(mp); mp_close(mp); mp_free(mp);Currently four renderers are supported, ALSA, XV, DirectFB and OpenGL via GTK+, though it is not hard to implement your own renderer. Renderers are very simple to implement, for audio all you have to do is define the functions: new, free, open, close, getdelay, write, pause, resume and call the macro: DEFINE_AUDIO_RENDERER(PLAYER_AUDIO_FOOBAR, new, free, open, close, getdelay, write, pause, resume) It is very similar for Video. Example console output I: Found card: HDA NVidia I: Opened codec "mp2" for stream 1 I: Using renderer "PLAYER_AUDIO_ALSA" for stream 1 I: Found 24bit TrueColor I: Opened codec "mpeg2video" for stream 0 I: Using renderer "PLAYER_VIDEO_XV" for stream 0 I: Waiting for streams to be primed I: Waiting for stream 0 to become ready I: Aspect Ratio: 1.333333 I: Frame Size: 720x480 I: Display Size: 640x480 I: Telling the renderer to initialize it's buffers W: Hardware can not pause I: Opened audio device (rate = 48000, channels = 2) I: Signal stream 1 primed I: Signal stream 0 primed I: Stream 0 is primed I: Syncing clock to audio stream 1 I: Waiting for stream 1 to become ready I: Stream 1 is primed I: All streams primed and ready to go I: Stream 0 started I: Stream 1 started I: Finished demuxing I: Waiting for the video queue to be emptied I: Telling the renderer to free it's buffers I: Demuxer finished I: Joining stream 0 I: Joining stream 1 [Less]

wffmpeg is a wrapper to ffmpeg command line program, written in python. Is structured as a base library, easy to extend by combining standard ffmpeg features. requires an ffmpeg executable file. Due ... [More] to this it's (almost) multi-platform. Common behaviour needs the use of two classess: - FFDocument, an audio/video document who is editable by apply one or more effects - FFmpeg, the cli wrapper. A FFmpeg instance is used to extract metadata from files and to execute an effects chain (using one or more FFDocument objects) in order to create a new document. A FFmpeg object can be created by specify a path for your ffmpeg executable. Thus, it can be possible to use multiple ffmpeg instances and multiple versions. The invocation of a FFDocument's effect method returns a new modified object. This means that effects are chainable. For example: ff = FFDocument("/home/leonardo/movie.flv") ffresult = ff.resize("50%").ltrim(10).resample(120) [Less]