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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Organiser par catégorie
17 mai 2013, parDans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...) -
Demande de création d’un canal
12 mars 2010, parEn fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)
Sur d’autres sites (5899)
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ffmpeg and boost::asio NULL pointer
9 avril 2015, par GeorgiI am trying to make a special video software which will run on multiple core machines.
I want many c++ object to stream video files and many other c++ objects to store the streamed data into file.
I have created some simple classes, but when I try to create 2 and more objects I got :
opening stream9079.sdp
[udp @ 0xaef5380] bind failed: Address already in use
Could not open input file stream9079.sdp
Segmentation fault (core dumped)When I use only one object everything is fine.
I use the following code
int main(int argc, char **argv)
{
boost::asio::io_service ios;
boost::asio::io_service ios1;
Channel *channels[100];
channels[0] = new Channel(ios, 9078, atoi(argv[1]));
channels[0]->StartTimer(0);
channels[1] = new Channel(ios1, 9079, atoi(argv[1]));
channels[1]->StartTimer(0);
boost::thread t(boost::bind(&worker, &ios));
boost::thread t1(boost::bind(&worker, &ios1));
t.join();
t1.join();
CEVLOG_MSG << "done" << std::endl;
return 0;
}My
Channelclass implementation is :#include "channel.hpp"
#include "utils.hpp"
#include "boost/lexical_cast.hpp"
Channel::Channel(boost::asio::io_service &ioP, int i, bool to_send):
Runnable(ioP),
work( new boost::asio::io_service::work(ioP) ),
ofmt(NULL),
ifmt_ctx(NULL),
ofmt_ctx(NULL)
{
id = i;
sender = to_send;
if (sender)
{
input.assign("/home/georgi/Downloads/video/IMG_0019.MOV");
output.assign("rtp://10.101.3.60:"); output += boost::lexical_cast(id);
}
else
{
input.assign("stream"); input += boost::lexical_cast(id); input += ".sdp";
output.assign("test"); output += boost::lexical_cast(id); output += ".mp4";
}
video_idx = audio_idx = sub_idx = -1;
if (OpenInput())
{
if (sender)
OpenOutput(eStreamOutput);
else
OpenOutput(eFileOutput);
}
}
Channel::~Channel()
{
av_write_trailer(ofmt_ctx);
avformat_close_input(&ifmt_ctx);
if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE))
avio_closep(&ofmt_ctx->pb);
avformat_free_context(ofmt_ctx);
work.reset();
}
bool Channel::OpenInput()
{
CEVLOG_MSG << "opening " << input << std::endl;
int ret;
if ((ret = avformat_open_input(&ifmt_ctx, input.c_str(), 0, 0)) < 0)
{
CEVLOG_ERR << "Could not open input file " << input << std::endl;
return false;
}
CEVLOG_MSG << " " << ifmt_ctx << std::endl;
if ((ret = avformat_find_stream_info(ifmt_ctx, 0)) < 0)
{
CEVLOG_ERR << "Failed to retrieve input stream information" << std::endl;
return false;
}
ifmt_ctx->flags |= AVFMT_FLAG_GENPTS;
//read and set timestamps to 0
av_read_frame(ifmt_ctx, &pkt);
pkt.pts = pkt.dts = 0;
return true;
}
bool Channel::OpenOutput(tOutputType WhatToOpen)
{
int SDP_size;
switch (WhatToOpen)
{
case eFileOutput:
avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, output.c_str());
break;
case eStreamOutput:
avformat_alloc_output_context2(&ofmt_ctx, NULL, "rtp", output.c_str());
char SDP[4096];
SDP_size = 4096;
av_sdp_create(&ofmt_ctx, 1, SDP, SDP_size);
CEVLOG_DBG << "SDP=" << SDP << std::endl;
break;
default:
assert(false);
break;
}
if (!ofmt_ctx)
{
CEVLOG_ERR << "Could not create output context" << std::endl;
return false;
}
ofmt = ofmt_ctx->oformat;
video_idx = FindIndex(AVMEDIA_TYPE_VIDEO);
if (!(ofmt->flags & AVFMT_NOFILE))
{
if (avio_open(&ofmt_ctx->pb, output.c_str(), AVIO_FLAG_WRITE) < 0)
{
CEVLOG_ERR << "Could not open output file " << output << std::endl;
return false;
}
}
if (avformat_write_header(ofmt_ctx, NULL) < 0)
{
CEVLOG_ERR << "Error occurred when opening output file " << output << std::endl;
return false;
}
return true;
}
unsigned int Channel::FindIndex(AVMediaType Type)
{
int idx;
for (idx = 0; idx < ifmt_ctx->nb_streams; idx++)
{
if (ifmt_ctx->streams[idx]->codec->codec_type == Type)
{
AVStream *in_stream = ifmt_ctx->streams[idx];
AVStream *out_stream = avformat_new_stream(ofmt_ctx, in_stream->codec->codec);
if (!out_stream)
{
CEVLOG_ERR << "Failed allocating output stream" << std::endl;
break;
}
if (avcodec_copy_context(out_stream->codec, in_stream->codec) < 0)
{
CEVLOG_ERR << "Failed to copy context from input to output stream codec context" << std::endl;
break;
}
out_stream->codec->codec_tag = 0;
if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
{
out_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
break;
}
}
return idx;
}
void Channel::Callback()
{
if (sender)
SendVideo();
else
RecvVideo();
}
void Channel::SendVideo()
{
int ret = av_read_frame(ifmt_ctx, &pkt);
int time_ms = 0;
if (ret != 0)
{
av_write_trailer(ofmt_ctx);
work.reset();
return;
}
if (pkt.stream_index == video_idx)
{
AVStream *in_stream = ifmt_ctx->streams[pkt.stream_index];
AVStream *out_stream = ofmt_ctx->streams[pkt.stream_index];
AVRational time_base = ifmt_ctx->streams[video_idx]->time_base;
char timestamp[100];
time_ms = 1000 * 1000 * strtof(timestamp2char(timestamp, pkt.duration, &time_base), NULL);
pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF);
pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF);
pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);
pkt.pos = -1;
ret = av_interleaved_write_frame(ofmt_ctx, &pkt);
if (ret < 0)
{
CEVLOG_ERR << "Error muxing packet" << std::endl;
return;
}
}
av_free_packet(&pkt);
StartTimer(time_ms);
}
void Channel::RecvVideo()
{
int ret = av_read_frame(ifmt_ctx, &pkt);
if (ret != 0)
{
//Some error or end of stream is detected. Write file trailer
av_write_trailer(ofmt_ctx);
work.reset();
return;
}
//if is NOT video just continue reading
if (pkt.stream_index == video_idx)
{
AVStream *in_stream = ifmt_ctx->streams[pkt.stream_index];
AVStream *out_stream = ofmt_ctx->streams[pkt.stream_index];
AVRational time_base = ifmt_ctx->streams[video_idx]->time_base;
pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF);
pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF);
pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);
pkt.pos = -1;
ret = av_interleaved_write_frame(ofmt_ctx, &pkt);
if (ret < 0)
{
CEVLOG_ERR << "Error muxing packet" << std::endl;
return;
}
}
av_free_packet(&pkt);
StartTimer(0);
} -
Android FFmpeg Video Recording Delete Last Recorded Part
17 avril 2015, par user3587194I’m trying to do exactly what this picture shows.
Anyway, how can I delete part of a video ? The code I was testing is on github.
It uses a progress bar so that when you record the progress bar will move, and keep them in separate segments. What is confusing to me is trying to figure out where and how to grab each segment to see if I want to delete that segment or not.
@Override
public void onPreviewFrame(byte[] data, Camera camera) {
long frameTimeStamp = 0L;
if (mAudioTimestamp == 0L && firstTime > 0L)
frameTimeStamp = 1000L * (System.currentTimeMillis() - firstTime);
else if (mLastAudioTimestamp == mAudioTimestamp)
frameTimeStamp = mAudioTimestamp + frameTime;
else {
long l2 = (System.nanoTime() - mAudioTimeRecorded) / 1000L;
frameTimeStamp = l2 + mAudioTimestamp;
mLastAudioTimestamp = mAudioTimestamp;
}
synchronized (mVideoRecordLock) {
//Log.e("recorder", "mVideoRecordLock " + mVideoRecordLock);
if (recording && rec && lastSavedframe != null && lastSavedframe.getFrameBytesData() != null && yuvIplImage != null) {
if (isFirstFrame) {
isFirstFrame = false;
firstData = data;
}
totalTime = System.currentTimeMillis() - firstTime - pausedTime - ((long) (1.0 / (double) frameRate) * 1000);
if (lastSavedframe != null && !deleteEnabled) {
deleteEnabled = true;
deleteBtn.setVisibility(View.VISIBLE);
cancelBtn.setVisibility(View.GONE);
}
if (!nextEnabled && totalTime >= recordingChangeTime) {
Log.e("recording", "totalTime >= recordingChangeTime " + totalTime + " " + recordingChangeTime);
nextEnabled = true;
nextBtn.setVisibility(View.VISIBLE);
}
if (nextEnabled && totalTime >= recordingMinimumTime) {
mHandler.sendEmptyMessage(5);
}
if (currentRecorderState == RecorderState.PRESS && totalTime >= recordingChangeTime) {
currentRecorderState = RecorderState.LOOSEN;
mHandler.sendEmptyMessage(2);
}
mVideoTimestamp += frameTime;
if (lastSavedframe.getTimeStamp() > mVideoTimestamp)
mVideoTimestamp = lastSavedframe.getTimeStamp();
try {
yuvIplImage.getByteBuffer().put(lastSavedframe.getFrameBytesData());
videoRecorder.setTimestamp(lastSavedframe.getTimeStamp());
videoRecorder.record(yuvIplImage);
} catch (com.googlecode.javacv.FrameRecorder.Exception e) {
e.printStackTrace();
}
}
byte[] tempData = rotateYUV420Degree90(data, previewWidth, previewHeight);
if (cameraSelection == 1)
tempData = rotateYUV420Degree270(data, previewWidth, previewHeight);
lastSavedframe = new SavedFrames(tempData, frameTimeStamp);
//Log.e("recorder", "lastSavedframe " + lastSavedframe);
}
}
}
public class Util {
public static ContentValues videoContentValues = null;
public static String getRecordingTimeFromMillis(long millis) {
String strRecordingTime = null;
int seconds = (int) (millis / 1000);
int minutes = seconds / 60;
int hours = minutes / 60;
if (hours >= 0 && hours < 10)
strRecordingTime = "0" + hours + ":";
else
strRecordingTime = hours + ":";
if (hours > 0)
minutes = minutes % 60;
if (minutes >= 0 && minutes < 10)
strRecordingTime += "0" + minutes + ":";
else
strRecordingTime += minutes + ":";
seconds = seconds % 60;
if (seconds >= 0 && seconds < 10)
strRecordingTime += "0" + seconds ;
else
strRecordingTime += seconds ;
return strRecordingTime;
}
public static int determineDisplayOrientation(Activity activity, int defaultCameraId) {
int displayOrientation = 0;
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.FROYO) {
CameraInfo cameraInfo = new CameraInfo();
Camera.getCameraInfo(defaultCameraId, cameraInfo);
int degrees = getRotationAngle(activity);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
displayOrientation = (cameraInfo.orientation + degrees) % 360;
displayOrientation = (360 - displayOrientation) % 360;
} else {
displayOrientation = (cameraInfo.orientation - degrees + 360) % 360;
}
}
return displayOrientation;
}
public static int getRotationAngle(Activity activity) {
int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
return degrees;
}
public static int getRotationAngle(int rotation) {
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
return degrees;
}
public static String createImagePath(Context context){
long dateTaken = System.currentTimeMillis();
String title = Constants.FILE_START_NAME + dateTaken;
String filename = title + Constants.IMAGE_EXTENSION;
String dirPath = Environment.getExternalStorageDirectory()+"/Android/data/" + context.getPackageName()+"/video";
File file = new File(dirPath);
if(!file.exists() || !file.isDirectory())
file.mkdirs();
String filePath = dirPath + "/" + filename;
return filePath;
}
public static String createFinalPath(Context context) {
Log.e("util", "createFinalPath");
long dateTaken = System.currentTimeMillis();
String title = Constants.FILE_START_NAME + dateTaken;
String filename = title + Constants.VIDEO_EXTENSION;
String filePath = genrateFilePath(context, String.valueOf(dateTaken), true, null);
ContentValues values = new ContentValues(7);
values.put(Video.Media.TITLE, title);
values.put(Video.Media.DISPLAY_NAME, filename);
values.put(Video.Media.DATE_TAKEN, dateTaken);
values.put(Video.Media.MIME_TYPE, "video/3gpp");
values.put(Video.Media.DATA, filePath);
videoContentValues = values;
Log.e("util", "filePath " + filePath);
return filePath;
}
public static void deleteTempVideo(Context context) {
final String filePath = Environment.getExternalStorageDirectory() + "/Android/data/" + context.getPackageName() + "/video";
new Thread(new Runnable() {
@Override
public void run() {
File file = new File(filePath);
if (file != null && file.isDirectory()) {
Log.e("util", "file.isDirectory() " + file.isDirectory());
for (File file2 : file.listFiles()) {
Log.e("util", "file.listFiles() " + file.listFiles());
file2.delete();
}
}
}
}).start();
}
private static String genrateFilePath(Context context,String uniqueId, boolean isFinalPath, File tempFolderPath) {
String fileName = Constants.FILE_START_NAME + uniqueId + Constants.VIDEO_EXTENSION;
String dirPath = Environment.getExternalStorageDirectory() + "/Android/data/" + context.getPackageName() + "/video";
if (isFinalPath) {
File file = new File(dirPath);
if (!file.exists() || !file.isDirectory())
file.mkdirs();
} else
dirPath = tempFolderPath.getAbsolutePath();
String filePath = dirPath + "/" + fileName;
return filePath;
}
public static String createTempPath(Context context, File tempFolderPath ) {
long dateTaken = System.currentTimeMillis();
String filePath = genrateFilePath(context,String.valueOf(dateTaken), false, tempFolderPath);
return filePath;
}
public static File getTempFolderPath() {
File tempFolder = new File(Constants.TEMP_FOLDER_PATH +"_" +System.currentTimeMillis());
return tempFolder;
}
public static List getResolutionList(Camera camera) {
Parameters parameters = camera.getParameters();
List previewSizes = parameters.getSupportedPreviewSizes();
return previewSizes;
}
public static RecorderParameters getRecorderParameter(int currentResolution) {
RecorderParameters parameters = new RecorderParameters();
if (currentResolution == Constants.RESOLUTION_HIGH_VALUE) {
parameters.setAudioBitrate(128000);
parameters.setVideoQuality(0);
} else if (currentResolution == Constants.RESOLUTION_MEDIUM_VALUE) {
parameters.setAudioBitrate(128000);
parameters.setVideoQuality(5);
} else if (currentResolution == Constants.RESOLUTION_LOW_VALUE) {
parameters.setAudioBitrate(96000);
parameters.setVideoQuality(20);
}
return parameters;
}
public static int calculateMargin(int previewWidth, int screenWidth) {
int margin = 0;
if (previewWidth <= Constants.RESOLUTION_LOW) {
margin = (int) (screenWidth*0.12);
} else if (previewWidth > Constants.RESOLUTION_LOW && previewWidth <= Constants.RESOLUTION_MEDIUM) {
margin = (int) (screenWidth*0.08);
} else if (previewWidth > Constants.RESOLUTION_MEDIUM && previewWidth <= Constants.RESOLUTION_HIGH) {
margin = (int) (screenWidth*0.08);
}
return margin;
}
public static int setSelectedResolution(int previewHeight) {
int selectedResolution = 0;
if(previewHeight <= Constants.RESOLUTION_LOW) {
selectedResolution = 0;
} else if (previewHeight > Constants.RESOLUTION_LOW && previewHeight <= Constants.RESOLUTION_MEDIUM) {
selectedResolution = 1;
} else if (previewHeight > Constants.RESOLUTION_MEDIUM && previewHeight <= Constants.RESOLUTION_HIGH) {
selectedResolution = 2;
}
return selectedResolution;
}
public static class ResolutionComparator implements Comparator {
@Override
public int compare(Camera.Size size1, Camera.Size size2) {
if(size1.height != size2.height)
return size1.height -size2.height;
else
return size1.width - size2.width;
}
}
public static void concatenateMultipleFiles(String inpath, String outpath)
{
File Folder = new File(inpath);
File files[];
files = Folder.listFiles();
if(files.length>0)
{
for(int i = 0;ilibencoding.so";
}
private static HashMap getMetaData()
{
HashMap localHashMap = new HashMap();
localHashMap.put("creation_time", new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss_SSSZ").format(new Date()));
return localHashMap;
}
public static int getTimeStampInNsFromSampleCounted(int paramInt) {
return (int)(paramInt / 0.0441D);
}
/*public static void saveReceivedFrame(SavedFrames frame) {
File cachePath = new File(frame.getCachePath());
BufferedOutputStream bos;
try {
bos = new BufferedOutputStream(new FileOutputStream(cachePath));
if (bos != null) {
bos.write(frame.getFrameBytesData());
bos.flush();
bos.close();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
cachePath = null;
} catch (IOException e) {
e.printStackTrace();
cachePath = null;
}
}*/
public static Toast showToast(Context context, String textMessage, int timeDuration) {
if (null == context) {
return null;
}
textMessage = (null == textMessage ? "Oops! " : textMessage.trim());
Toast t = Toast.makeText(context, textMessage, timeDuration);
t.show();
return t;
}
public static void showDialog(Context context, String title, String content, int type, final Handler handler) {
final Dialog dialog = new Dialog(context, R.style.Dialog_loading);
dialog.setCancelable(true);
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.global_dialog_tpl, null);
Button confirmButton = (Button) view.findViewById(R.id.setting_account_bind_confirm);
Button cancelButton = (Button) view.findViewById(R.id.setting_account_bind_cancel);
TextView dialogTitle = (TextView) view.findViewById(R.id.global_dialog_title);
View line_hori_center = view.findViewById(R.id.line_hori_center);
confirmButton.setVisibility(View.GONE);
line_hori_center.setVisibility(View.GONE);
TextView textView = (TextView) view.findViewById(R.id.setting_account_bind_text);
Window dialogWindow = dialog.getWindow();
WindowManager.LayoutParams lp = dialogWindow.getAttributes();
lp.width = (int) (context.getResources().getDisplayMetrics().density*288);
dialogWindow.setAttributes(lp);
if(type != 1 && type != 2){
type = 1;
}
dialogTitle.setText(title);
textView.setText(content);
if(type == 1 || type == 2){
confirmButton.setVisibility(View.VISIBLE);
confirmButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v){
if(handler != null){
Message msg = handler.obtainMessage();
msg.what = 1;
handler.sendMessage(msg);
}
dialog.dismiss();
}
});
}
// 取消按钮事件
if(type == 2){
cancelButton.setVisibility(View.VISIBLE);
line_hori_center.setVisibility(View.VISIBLE);
cancelButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v){
if(handler != null){
Message msg = handler.obtainMessage();
msg.what = 0;
handler.sendMessage(msg);
}
dialog.dismiss();
}
});
}
dialog.addContentView(view, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
dialog.setCancelable(true);// 点击返回键关闭
dialog.setCanceledOnTouchOutside(true);// 点击外部关闭
dialog.show();
}
public IplImage getFrame(String filePath) {
Log.e("util", "getFrame" + filePath);
CvCapture capture = cvCreateFileCapture(filePath);
Log.e("util", "capture " + capture);
IplImage image = cvQueryFrame(capture);
Log.e("util", "image " + image);
return image;
} -
Cannot save animation in matplotlib : Windows permission denied
13 mai 2015, par VladimirI’ve been trying for a day long to sort this out, checking similar threads but with no success.
Stretch’s Cannot save matplotlib animation with ffmpeg helped with previous errors (I had ffmpeg path wrong), but I kept getting Access denied after fixing it.My ffmpeg binary is on
C:\ffmpeg\binA nice alternative would be to able to export gif files, but I keep getting an ascii error with imagemagick. I think both problems are related, so I wanted to sort out the ffmpeg first.
I think the problem might have to do with the fact I’m working with Canopy (in Windows 8 64bit), which pretty much hegemonized my path variable and broke some things along the way (e.g. I can’t open IDLE since I installed Canopy, didn’t tried to fix that yet). As I fixed things along the way I found at least 3 distinct path variables, all of which I updated : windows advanced settings path (set manually), windows console path (set via console with setx), and sys.path (set or checked at runtime), adding
";C:\ffmpeg\bin", where ffmpeg effectively is. Regardless I sort out the problem or not, I would like to learn which of these environment variables are relevant for what, I find it very confusing.The code is the following :
# -*- coding: utf-8 -*-
import sys
import numpy as np
from matplotlib import pyplot as plt
from matplotlib import animation
plt.rcParams['animation.ffmpeg_path'] = r'C:\ffmpeg\bin'
if r'C:\ffmpeg\bin' not in sys.path: sys.path.append(r'C:\ffmpeg\bin')
fig = plt.figure()
ax = plt.axes(xlim=(0, 2), ylim=(-2, 2))
line, = ax.plot([], [], lw=2)
def init():
line.set_data([], [])
return line,
def animate(i):
x = np.linspace(0, 2, 1000)
y = np.sin(2 * np.pi * (x - 0.01 * i))
line.set_data(x, y)
return line,
anim = animation.FuncAnimation(fig, animate, init_func=init, frames=200, interval=20, blit=True)
plt.show()
# This case generates Windows err: Access Denied
FFwriter = animation.FFMpegWriter()
# anim.save(r'C:\basic_animation.mp4', writer = FFwriter, fps=30)
# This case generates UnicodeDecodeError:'ascii' codec can't decode byte 0xa0 in position 3
# anim.save(r'C:\animation.gif', writer='imagemagick', fps=30)The traceback for
anim.save(r'C:\basic_animation.mp4', writer = FFwriter, fps=30):%run "C:\Users\Yahveh\Documents\Vlad\Investigacion\animation saving.py"
---------------------------------------------------------------------------
WindowsError Traceback (most recent call last)
C:\Users\Yahveh\Documents\Vlad\Investigacion\animation saving.py in <module>()
27 # This case generates Windows err: Access Denied
28 FFwriter = animation.FFMpegWriter()
---> 29 anim.save(r'C:\basic_animation.mp4', writer = FFwriter, fps=30)
30
31 # This case generates UnicodeDecodeError:'ascii' codec can't decode byte 0xa0 in position 3
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\User\lib\site-packages\matplotlib\animation.pyc in save(self, filename, writer, fps, dpi, codec, bitrate, extra_args, metadata, extra_anim, savefig_kwargs)
759 # since GUI widgets are gone. Either need to remove extra code to
760 # allow for this non-existant use case or find a way to make it work.
--> 761 with writer.saving(self._fig, filename, dpi):
762 for data in zip(*[a.new_saved_frame_seq()
763 for a in all_anim]):
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.2.2785.win-x86_64\lib\contextlib.pyc in __enter__(self)
15 def __enter__(self):
16 try:
---> 17 return self.gen.next()
18 except StopIteration:
19 raise RuntimeError("generator didn't yield")
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\User\lib\site-packages\matplotlib\animation.pyc in saving(self, *args)
184 '''
185 # This particular sequence is what contextlib.contextmanager wants
--> 186 self.setup(*args)
187 yield
188 self.finish()
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\User\lib\site-packages\matplotlib\animation.pyc in setup(self, fig, outfile, dpi, *args)
174 # Run here so that grab_frame() can write the data to a pipe. This
175 # eliminates the need for temp files.
--> 176 self._run()
177
178 @contextlib.contextmanager
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\User\lib\site-packages\matplotlib\animation.pyc in _run(self)
202 stdout=output, stderr=output,
203 stdin=subprocess.PIPE,
--> 204 creationflags=subprocess_creation_flags)
205
206 def finish(self):
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.2.2785.win-x86_64\lib\subprocess.pyc in __init__(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags)
707 p2cread, p2cwrite,
708 c2pread, c2pwrite,
--> 709 errread, errwrite)
710 except Exception:
711 # Preserve original exception in case os.close raises.
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.2.2785.win-x86_64\lib\subprocess.pyc in _execute_child(self, args, executable, preexec_fn, close_fds, cwd, env, universal_newlines, startupinfo, creationflags, shell, to_close, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite)
955 env,
956 cwd,
--> 957 startupinfo)
958 except pywintypes.error, e:
959 # Translate pywintypes.error to WindowsError, which is
WindowsError: [Error 5] Acceso denegado
</module>The traceback for
anim.save(r'C:\animation.gif', writer='imagemagick', fps=30):In [8]: %run "C:\Users\Yahveh\Documents\Vlad\Investigacion\animation saving.py"
---------------------------------------------------------------------------
UnicodeDecodeError Traceback (most recent call last)
C:\Users\Yahveh\Documents\Vlad\Investigacion\animation saving.py in <module>()
30
31 # This case generates UnicodeDecodeError:'ascii' codec can't decode byte 0xa0 in position 3
---> 32 anim.save(r'C:\animation.gif', writer='imagemagick', fps=30)
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\User\lib\site-packages\matplotlib\animation.pyc in save(self, filename, writer, fps, dpi, codec, bitrate, extra_args, metadata, extra_anim, savefig_kwargs)
765 # TODO: Need to see if turning off blit is really necessary
766 anim._draw_next_frame(d, blit=False)
--> 767 writer.grab_frame(**savefig_kwargs)
768
769 # Reconnect signal for first draw if necessary
C:\Users\Yahveh\AppData\Local\Enthought\Canopy\User\lib\site-packages\matplotlib\animation.pyc in grab_frame(self, **savefig_kwargs)
225 verbose.report('MovieWriter -- Error '
226 'running proc:\n%s\n%s' % (out,
--> 227 err), level='helpful')
228 raise
229
UnicodeDecodeError: 'ascii' codec can't decode byte 0xa0 in position 3: ordinal not in range(128)
</module>Stared at them for a while.
Thanks for your time !
UPDATE : I followed the steps in this post for granting access to both C :\ffmpeg and destination folder, but no luck :(
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