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Médias (91)
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999,999
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
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Demon seed (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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The four of us are dying (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Corona radiata (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Lights in the sky (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...) -
Support de tous types de médias
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Sur d’autres sites (10683)
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Merging audio(aac) and video (h.264 in mp4 container) into a mp4 container using Xuggler
26 août 2016, par HandroidHere is the code I am using
String filenamevideo = videoFilePath;(video.mp4)
String filenameaudio = audioAACFilePath; (audio.aac)
IMediaWriter mWriter = ToolFactory.makeWriter(videoWithAudioFilePath); // output
// file
IContainer containerVideo = IContainer.make();
IContainer containerAudio = IContainer.make();
if (containerVideo.open(filenamevideo, IContainer.Type.READ, null) < 0)
throw new IllegalArgumentException("Cant find " + filenamevideo);
if (containerAudio.open(filenameaudio, IContainer.Type.READ, null) < 0)
throw new IllegalArgumentException("Cant find " + filenameaudio);
int numStreamVideo = containerVideo.getNumStreams();
int numStreamAudio = containerAudio.getNumStreams();
int videostreamt = -1; // this is the video stream id
int audiostreamt = -1;
IStreamCoder videocoder = null;
for (int i = 0; i < numStreamVideo; i++) {
IStream stream = containerVideo.getStream(i);
IStreamCoder code = stream.getStreamCoder();
if (code.getCodecType() == ICodec.Type.CODEC_TYPE_VIDEO) {
videostreamt = i;
videocoder = code;
break;
}
}
for (int i = 0; i < numStreamAudio; i++) {
IStream stream = containerAudio.getStream(i);
IStreamCoder code = stream.getStreamCoder();
if (code.getCodecType() == ICodec.Type.CODEC_TYPE_AUDIO) {
audiostreamt = i;
break;
}
}
if (videostreamt == -1)
throw new RuntimeException("No video steam found");
if (audiostreamt == -1)
throw new RuntimeException("No audio steam found");
if (videocoder.open() < 0)
throw new RuntimeException("Cant open video coder");
IPacket packetvideo = IPacket.make();
IStreamCoder audioCoder = containerAudio.getStream(audiostreamt).getStreamCoder();
if (audioCoder.open() < 0)
throw new RuntimeException("Cant open audio coder");
mWriter.addAudioStream(0, 0, ICodec.ID.CODEC_ID_AAC, audioCoder.getChannels(),audioCoder.getSampleRate());
mWriter.addVideoStream(1, 0, ICodec.ID.CODEC_ID_H264, videocoder.getWidth(), videocoder.getHeight());
IPacket packetaudio = IPacket.make();
while (containerVideo.readNextPacket(packetvideo) >= 0 || containerAudio.readNextPacket(packetaudio) >= 0) {
if (packetvideo.getStreamIndex() == videostreamt) {
// video packet
IVideoPicture picture = IVideoPicture.make(videocoder.getPixelType(), videocoder.getWidth(),
videocoder.getHeight());
int offset = 0;
while (offset < packetvideo.getSize()) {
int bytesDecoded = videocoder.decodeVideo(picture, packetvideo, offset);
if (bytesDecoded < 0)
throw new RuntimeException("bytesDecoded not working");
offset += bytesDecoded;
if (picture.isComplete()) {
// System.out.println(picture.getPixelType());
mWriter.encodeVideo(1, picture);
}
}
}
if (packetaudio.getStreamIndex() == audiostreamt) {
// audio packet
IAudioSamples samples = IAudioSamples.make(512, audioCoder.getChannels(), IAudioSamples.Format.FMT_S32);
int offset = 0;
while (offset < packetaudio.getSize()) {
int bytesDecodedaudio = audioCoder.decodeAudio(samples, packetaudio, offset);
if (bytesDecodedaudio < 0)
throw new RuntimeException("could not detect audio");
offset += bytesDecodedaudio;
if (samples.isComplete()) {
mWriter.encodeAudio(0, samples);
}
}
}
}The output file (mp4) is generating , but unable to play it using (vlc) and in JavaFX scene media.
Please help me with the inputs on the above code I’m using it in a correct way (Or) help me with the possible solution for merging audio(aac) and video(h264) to mp4 container.
Thank in advance.
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cv2.VideoCapture on python
27 décembre 2015, par pandasarebestI am running the following code :
import numpy as np
import cv2
import os
count = 0
cap = cv2.VideoCapture("/home/simon/PROJECT/real_data/00000020.mp4")
while not cap.isOpened():
cap = cv2.VideoCapture("./00000020.mp4")
cv2.waitKey(1000)
print "Wait for the header"
pos_frame = cap.get(cv2.cv.CV_CAP_PROP_POS_FRAMES)
while True:
flag, frame = cap.read()
if flag:
# The frame is ready and already captured
cv2.imshow('video', frame)
pos_frame = cap.get(cv2.cv.CV_CAP_PROP_POS_FRAMES)
print str(pos_frame)+" frames"
else:
# The next frame is not ready, so we try to read it again
cap.set(cv2.cv.CV_CAP_PROP_POS_FRAMES, pos_frame-1)
print "frame is not ready"
# It is better to wait for a while for the next frame to be ready
cv2.waitKey(1000)
if cv2.waitKey(10) & 0xFF == 27:
break
if cap.get(cv2.cv.CV_CAP_PROP_POS_FRAMES) == cap.get(cv2.cv.CV_CAP_PROP_FRAME_COUNT):
# If the number of captured frames is equal to the total number of frames,
# we stop
break
if ret == True:
frame = cv2.VideoCapture.grab()
frame = 'frame%d' % count
cv2.imwrite('frame%d.png', frame)
count += 1
else:
print 'stopped at' + count
breakAnd whenever I run it, it loops on the while not loop, printing "wait for header".
There is never an error code or anything like that either.I have tried to run it as a more simple piece of code, where it doesnt have all these checks, and again that doesn’t throw any errors.
I am attempting to run this code to open a video, and then save the frames as png files throughout the video.
Does anyone spot any particular problems with the code ?
Or alternatively does anyone know a piece of code that would do what i want more efficiently, as I have trawled through google searches and stack overflow a lot recently and haven’t found anythingThanks in advance
Panda -
Mixing audio(aac) and video (h.264 in mp4 container) and write to mp4 container using Xuggler
25 novembre 2015, par HandroidHere is the code I am using
String filenamevideo = videoFilePath;(video.mp4)
String filenameaudio = audioAACFilePath; (audio.aac)
IMediaWriter mWriter = ToolFactory.makeWriter(videoWithAudioFilePath); // output
// file
IContainer containerVideo = IContainer.make();
IContainer containerAudio = IContainer.make();
if (containerVideo.open(filenamevideo, IContainer.Type.READ, null) < 0)
throw new IllegalArgumentException("Cant find " + filenamevideo);
if (containerAudio.open(filenameaudio, IContainer.Type.READ, null) < 0)
throw new IllegalArgumentException("Cant find " + filenameaudio);
int numStreamVideo = containerVideo.getNumStreams();
int numStreamAudio = containerAudio.getNumStreams();
int videostreamt = -1; // this is the video stream id
int audiostreamt = -1;
IStreamCoder videocoder = null;
for (int i = 0; i < numStreamVideo; i++) {
IStream stream = containerVideo.getStream(i);
IStreamCoder code = stream.getStreamCoder();
if (code.getCodecType() == ICodec.Type.CODEC_TYPE_VIDEO) {
videostreamt = i;
videocoder = code;
break;
}
}
for (int i = 0; i < numStreamAudio; i++) {
IStream stream = containerAudio.getStream(i);
IStreamCoder code = stream.getStreamCoder();
if (code.getCodecType() == ICodec.Type.CODEC_TYPE_AUDIO) {
audiostreamt = i;
break;
}
}
if (videostreamt == -1)
throw new RuntimeException("No video steam found");
if (audiostreamt == -1)
throw new RuntimeException("No audio steam found");
if (videocoder.open() < 0)
throw new RuntimeException("Cant open video coder");
IPacket packetvideo = IPacket.make();
IStreamCoder audioCoder = containerAudio.getStream(audiostreamt).getStreamCoder();
if (audioCoder.open() < 0)
throw new RuntimeException("Cant open audio coder");
mWriter.addAudioStream(0, 0, ICodec.ID.CODEC_ID_AAC, audioCoder.getChannels(),audioCoder.getSampleRate());
mWriter.addVideoStream(1, 0, ICodec.ID.CODEC_ID_H264, videocoder.getWidth(), videocoder.getHeight());
IPacket packetaudio = IPacket.make();
while (containerVideo.readNextPacket(packetvideo) >= 0 || containerAudio.readNextPacket(packetaudio) >= 0) {
if (packetvideo.getStreamIndex() == videostreamt) {
// video packet
IVideoPicture picture = IVideoPicture.make(videocoder.getPixelType(), videocoder.getWidth(),
videocoder.getHeight());
int offset = 0;
while (offset < packetvideo.getSize()) {
int bytesDecoded = videocoder.decodeVideo(picture, packetvideo, offset);
if (bytesDecoded < 0)
throw new RuntimeException("bytesDecoded not working");
offset += bytesDecoded;
if (picture.isComplete()) {
// System.out.println(picture.getPixelType());
mWriter.encodeVideo(1, picture);
}
}
}
if (packetaudio.getStreamIndex() == audiostreamt) {
// audio packet
IAudioSamples samples = IAudioSamples.make(512, audioCoder.getChannels(), IAudioSamples.Format.FMT_S32);
int offset = 0;
while (offset < packetaudio.getSize()) {
int bytesDecodedaudio = audioCoder.decodeAudio(samples, packetaudio, offset);
if (bytesDecodedaudio < 0)
throw new RuntimeException("could not detect audio");
offset += bytesDecodedaudio;
if (samples.isComplete()) {
mWriter.encodeAudio(0, samples);
}
}
}
}The output file (mp4) is generating , but unable to play it using (vlc) and in JavaFX scene media.
Please help me with the inputs on the above code I’m using it in a correct way (Or) help me with the possible solution for mixing audio(aac) and video(h264) to mp4 container.
Thank in advance.