Recherche avancée
Médias (29)
-
#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
-
#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
-
#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
-
#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
-
#4 Emo Creates
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
-
#2 Typewriter Dance
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
Autres articles (79)
-
L’espace de configuration de MediaSPIP
29 novembre 2010, parL’espace de configuration de MediaSPIP est réservé aux administrateurs. Un lien de menu "administrer" est généralement affiché en haut de la page [1].
Il permet de configurer finement votre site.
La navigation de cet espace de configuration est divisé en trois parties : la configuration générale du site qui permet notamment de modifier : les informations principales concernant le site (...) -
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 (...) -
Récupération d’informations sur le site maître à l’installation d’une instance
26 novembre 2010, parUtilité
Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...)
Sur d’autres sites (5025)
-
Why is my DSharpPlus Slash Command not playing my desired sound using FFMPEG in C# ?
19 mai 2023, par IngeniousThoughtsI'm having a problem with my ffmpeg setup the commands work fine but my play command doesn't play my desired sound.


//The command.
 [SlashCommand("play", "plays a sound in a voice channel.")]
 public async Task HowlCommand(InteractionContext ctx, [Choice("ChoiceName", "C:\\My\\Program\\Directory\\Name\\MySound.mp3")]
 [Option("Sound", "Please select a Sound")] string filepath)
 {
 //Creates a slash command used response.
 //Also removes the error message.
 await ctx.CreateResponseAsync(InteractionResponseType.ChannelMessageWithSource, new DiscordInteractionResponseBuilder()
 .WithContent("Playing sound in voice channel. Please wait just a moment!"));
 
 //Checks if the user is not a bot to send the message.
 if (ctx.Member.IsBot)
 {
 return;
 }
 else
 {
 if(filepath != "C:\\My\\Program\\Directory\\Name\\MySound.mp3")
 {
 var embedmessage = new DiscordMessageBuilder()
 .AddEmbed(new DiscordEmbedBuilder()
 
 .WithAuthor("BotName", null, ctx.Client.CurrentApplication.Icon)
 .WithTitle("Please select the following sound to play:")
 .WithImageUrl(ctx.Client.CurrentApplication.Icon)
 .WithFooter("VoiceChannel Error.", "ImageURL.png")
 .WithTimestamp(DateTime.Now)
 .Build()
 
 );
 
 //Makes the command wait 5 seconds before sending the rest of the command data.
 await Task.Delay(TimeSpan.FromSeconds(5));
 
 //Sends the embed in a message.
 await ctx.Channel.SendMessageAsync(embedmessage);
 }
 else
 {
 //Makes the command wait 5 seconds before sending the rest of the command data.
 await Task.Delay(TimeSpan.FromSeconds(5));
 
 
 var vnext = ctx.Client.GetVoiceNext();
 var vnc = vnext.GetConnection(ctx.Guild);
 
 //if null throws exception.
 if (vnc == null)
 throw new System.InvalidOperationException("Not connected in this guild.");
 
 
 //Gets the mp3 file to use.
 var ffmpeg = Process.Start(new ProcessStartInfo
 {
 FileName = "ffmpeg",
 Arguments = $@"-i ""{filepath}"" -ac 2 -f s16le -ar 48000 pipe:1",
 RedirectStandardOutput = true,
 UseShellExecute = false
 });
 Stream pcm = ffmpeg.StandardOutput.BaseStream;
 
 VoiceTransmitSink transmit = vnc.GetTransmitSink();
 await pcm.CopyToAsync(transmit);
 vnc.GetTransmitSink().VolumeModifier = 5;
 
 //Makes the command wait 10 seconds before sending the rest of the command data.
 await Task.Delay(TimeSpan.FromSeconds(10));
 
 //Disconnects the bot from the voice channel.
 vnc.Disconnect();
 }
 }
 }


//The command.
 [SlashCommand("join", "Joins a voice channel.")]
 public async Task JoinChannel(InteractionContext ctx, [Choice("MyVoiceChannel", "VoiceChannelName")]
 [Option("VoiceChannel", "Please choose a Voice Channel.")] DiscordChannel channel)
 {
 //Creates a slash command used response.
 //Also removes the error message.
 await ctx.CreateResponseAsync(InteractionResponseType.ChannelMessageWithSource, new DiscordInteractionResponseBuilder()
 .WithContent("Joining voice channel. Please wait just a moment!"));
 
 //Checks if the user is not a bot to send the message.
 if (ctx.Member.IsBot)
 {
 return;
 }
 else
 {
 if (channel.Name != "MyVoiceChannelName")
 {
 var embedmessage = new DiscordMessageBuilder()
 .AddEmbed(new DiscordEmbedBuilder()
 
 .WithAuthor("BotName", null, ctx.Client.CurrentApplication.Icon)
 .WithTitle("Please Create The Following Voice Channel:")
 .WithImageUrl(ctx.Client.CurrentApplication.Icon)
 .AddField("VoiceChannel:", "**BotName**" + Environment.NewLine + "Is Case Sensitive: **Yes**")
 .WithFooter("VoiceChannel Error.", "ImageURL.png")
 .WithTimestamp(DateTime.Now)
 .Build()
 
 );
 
 //Makes the command wait 5 seconds before sending the rest of the command data.
 await Task.Delay(TimeSpan.FromSeconds(5));
 
 //Sends the embed in a message.
 await ctx.Channel.SendMessageAsync(embedmessage);
 }
 else
 {
 //Makes the command wait 5 seconds before sending the rest of the command data.
 await Task.Delay(TimeSpan.FromSeconds(5));
 
 
 channel = ctx.Member.VoiceState?.Channel;
 await channel.ConnectAsync();
 
 }
 }
 }
 
 }
}


public sealed class Program
 {
 public static DiscordClient Client { get; private set; }
 public static InteractivityExtension Interactivity { get; private set; }
 public static CommandsNextExtension Commands { get; private set; }
 public static VoiceNextExtension VoiceNext { get; private set; }
 
 
 static async Task Main(string[] args)
 {
 
 //Main Window configs specifying the title name and color.
 Console.BackgroundColor = ConsoleColor.Black;
 Console.ForegroundColor = ConsoleColor.Magenta;
 Console.Title = "BotName";
 
 //1. Get the details of your config.json file by deserialising it
 var configJsonFile = new JSONReader();
 await configJsonFile.ReadJSON();
 
 //2. Setting up the Bot Configuration
 var discordConfig = new DiscordConfiguration()
 {
 Intents = DiscordIntents.All,
 Token = configJsonFile.token,
 TokenType = TokenType.Bot,
 AutoReconnect = true
 };
 
 //3. Apply this config to our DiscordClient
 Client = new DiscordClient(discordConfig);
 
 //4. Set the default timeout for Commands that use interactivity
 Client.UseInteractivity(new InteractivityConfiguration()
 {
 Timeout = TimeSpan.FromMinutes(2)
 });
 
 //5. Set up the Task Handler Ready event
 Client.Ready += OnClientReady;
 
 //6. Set up the Commands Configuration
 var commandsConfig = new CommandsNextConfiguration()
 {
 StringPrefixes = new string[] { configJsonFile.prefix },
 EnableMentionPrefix = true,
 EnableDms = true,
 EnableDefaultHelp = false,
 };
 
 Commands = Client.UseCommandsNext(commandsConfig);
 
 //7. Register your commands
 var slashCommandsConfig = Client.UseSlashCommands();
 slashCommandsConfig.RegisterCommands<mysoundscommand>(MyGuildID);
 
 //8. Allows usage of voice channels.
 var VoiceNext = Client.UseVoiceNext();
 
 //9. Connect to get the Bot online
 await Client.ConnectAsync();
 await Task.Delay(-1);
 }
 
 private static Task OnClientReady(DiscordClient sender, ReadyEventArgs e)
 {
 return Task.CompletedTask;
 }
 }
</mysoundscommand>

SourceCode Link :




playing the playsound slash command but wasn't expecting it to not play the mp3 file.


everything else worked fine except when it transmits the sound it doesn't play it.


-
Memory Leak in c++/cli application
10 décembre 2013, par AnkushI am passing bitmap from my c# app to c++/cli dll that add it to video.
The problem is program slowly leaking memory. I tried _CrtDumpMemoryLeaks() shows me leak of bitmap & another 40 byte leak but i am disposing bitmap.
Can anyone see memory leak, Here is code..Flow :
1) Capture screenshot by takescreenshot()
2) pass it to c++/cli function
3) dispose bitmap
lines from my c# app
Bitmap snap = takescreeshot();
vencoder.AddBitmap(snap);
snap.Dispose();
vencoder.printleak();
private static Bitmap takescreeshot()
{
System.Drawing.Bitmap bitmap = null;
System.Drawing.Graphics graphics = null;
bitmap = new Bitmap
(
System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width,
System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height,
System.Drawing.Imaging.PixelFormat.Format24bppRgb
);
graphics = System.Drawing.Graphics.FromImage(bitmap);
graphics.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size);
//Write TimeSpamp
Rectangle rect = new Rectangle(1166, 738, 200, 20);
String datetime= System.String.Format("{0:dd:MM:yy hh:mm:ss}",DateTime.Now);
System.Drawing.Font sysfont = new System.Drawing.Font("Times New Roman", 14, FontStyle.Bold);
graphics.DrawString(datetime, sysfont, Brushes.Red,rect);
//
Grayscale filter = new Grayscale(0.2125, 0.7154, 0.0721);
Bitmap grayImage = filter.Apply(bitmap);
//Dispose
bitmap.Dispose();
graphics.Dispose();
return grayImage;
}now in c++/cli dll
bool VideoEncoder::AddBitmap(Bitmap^ bitmap)
{
BitmapData^ bitmapData = bitmap->LockBits( System::Drawing::Rectangle( 0, 0,bitmap->Width, bitmap->Height ),ImageLockMode::ReadOnly,PixelFormat::Format8bppIndexed);
uint8_t* ptr = reinterpret_cast( static_cast( bitmapData->Scan0 ) );
uint8_t* srcData[4] = { ptr, NULL, NULL, NULL };
int srcLinesize[4] = { bitmapData->Stride, 0, 0, 0 };
pCurrentPicture = CreateFFmpegPicture(pVideoStream->codec->pix_fmt, pVideoStream->codec->width, pVideoStream->codec->height);
sws_scale(pImgConvertCtx, srcData, srcLinesize, 0, bitmap->Height, pCurrentPicture->data, pCurrentPicture->linesize );
bitmap->UnlockBits( bitmapData );
write_video_frame();
bitmapData=nullptr;
ptr=NULL;
return true;
}
AVFrame * VideoEncoder::CreateFFmpegPicture(int pix_fmt, int nWidth, int nHeight)
{
AVFrame *picture = NULL;
uint8_t *picture_buf = NULL;
int size;
picture = avcodec_alloc_frame();
if ( !picture)
{
printf("Cannot create frame\n");
return NULL;
}
size = avpicture_get_size((AVPixelFormat)pix_fmt, nWidth, nHeight);
picture_buf = (uint8_t *) av_malloc(size);
if (!picture_buf)
{
av_free(picture);
printf("Cannot allocate buffer\n");
return NULL;
}
avpicture_fill((AVPicture *)picture, picture_buf,
(AVPixelFormat)pix_fmt, nWidth, nHeight);
return picture;
}
void VideoEncoder::write_video_frame()
{
AVCodecContext* codecContext = pVideoStream->codec;
int out_size, ret = 0;
if ( pFormatContext->oformat->flags & AVFMT_RAWPICTURE )
{
printf( "raw picture must be written" );
}
else
{
out_size = avcodec_encode_video( codecContext, pVideoEncodeBuffer,nSizeVideoEncodeBuffer, pCurrentPicture );
if ( out_size > 0 )
{
AVPacket packet;
av_init_packet( &packet );
if ( codecContext->coded_frame->pts != AV_NOPTS_VALUE )
{
packet.pts = av_rescale_q( packet.pts, codecContext->time_base, pVideoStream->time_base );
}
if ( codecContext->coded_frame->pkt_dts != AV_NOPTS_VALUE )
{
packet.dts = av_rescale_q( packet.dts, codecContext->time_base, pVideoStream->time_base );
}
if ( codecContext->coded_frame->key_frame )
{
packet.flags |= AV_PKT_FLAG_KEY;
}
packet.stream_index = pVideoStream->index;
packet.data = pVideoEncodeBuffer;
packet.size = out_size;
ret = av_interleaved_write_frame( pFormatContext, &packet );
av_free_packet(&packet);
av_freep(pCurrentPicture);
}
else
{
// image was buffered
}
}
if ( ret != 0 )
{
throw gcnew Exception( "Error while writing video frame." );
}
}
void VideoEncoder::printleak()
{
printf("No of leaks: %d",_CrtDumpMemoryLeaks());
printf("\n");
} -
Is it feasible to create FFmpegFrameGrabber one by one for single FFmpegFrameRecorder and maintain video stream keep alive ?
12 juillet 2023, par zhoutianThe reason why I ask these question is I got byte [] of container data(name is dhav) one by one and I need to push that data continuously to RTMP to play。


What's the current progress I made ?


For now ，I can push data to RTMP and play RTMP by VLC just for few seconds，then the RTMP stream is end .


because the grabber created by inputstream only contain a few of the data come from ByteBuffer ,when that inputstream is end, the RTMP is closed.


synchronized (buffer) {
 buffer.flip();
 byte[] bytes = new byte[buffer.remaining()];
 buffer.get(bytes);
 buffer.clear();
 isByteBufferFull[0] = false;
 try {
 grabAndPush(bytes, SRS_PUSH_ADDRESS);
 } catch (Exception e) {
 //throw new RuntimeException(e);
 }

 }


private static synchronized void grabAndPush(byte[] bytes, String pushAddress) throws Exception {
 avutil.av_log_set_level(avutil.AV_LOG_INFO);
 FFmpegLogCallback.set();

 FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(new ByteArrayInputStream(bytes));
...
}


So can anyone tell me how to keep the RTMP aways alive by FFmpegFrameGrabber and FFmpegFrameRecorder when the source data come from one by one.
very appreciate 😃


this is my code :


import lombok.extern.slf4j.Slf4j;
import org.bytedeco.ffmpeg.avcodec.AVCodecParameters;
import org.bytedeco.ffmpeg.avformat.AVFormatContext;
import org.bytedeco.ffmpeg.avformat.AVStream;
import org.bytedeco.ffmpeg.global.avcodec;
import org.bytedeco.ffmpeg.global.avutil;
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.FFmpegLogCallback;
import org.bytedeco.javacv.Frame;
import org.jfjy.ch2ji.ecctv.dh.api.ApiService;
import org.jfjy.ch2ji.ecctv.dh.callback.RealPlayCallback;

import java.io.ByteArrayInputStream;
import java.nio.ByteBuffer;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

@Slf4j
public class GetBytes2PushRTMPNew2 {

 private static final String SRS_PUSH_ADDRESS = "rtmp://127.0.0.1:1935/live/livestream";

 static int BUFFER_CAPACITY = 1 * 1024 * 1024;

 public static void main(String[] args) throws Exception {
 FFmpegLogCallback.set();
 ApiService apiService = new ApiService();
 Long login = apiService.login("10.3.0.54", 8801, "admin", "xxxx");
 ByteBuffer buffer = ByteBuffer.allocate(BUFFER_CAPACITY);
 final boolean[] isByteBufferFull = {false};
 apiService.startRealPlay(new RealPlayCallback() {
 @Override
 public void apply(Long aLong, Integer integer, byte[] bytes) {
 try {
 //push data to bytebuffer
 synchronized (buffer) {
 if (buffer.remaining() > bytes.length) {
 buffer.put(bytes);
 } else {
 isByteBufferFull[0] = true;
 }
 }
 } catch (Exception e) {
 throw new RuntimeException(e);
 }
 }
 }, 0, 0);

 ExecutorService executorService = Executors.newFixedThreadPool(1);
 executorService.execute(new Runnable() {
 @Override
 public void run() {
 while (true) {
 //get data from bytebuffer when buffer is full
 synchronized (isByteBufferFull) {
 if (isByteBufferFull[0]) {
 synchronized (buffer) {
 buffer.flip();
 byte[] bytes = new byte[buffer.remaining()];
 buffer.get(bytes);
 buffer.clear();
 isByteBufferFull[0] = false;
 try {
 //using grabber and recorder to push RTMP
 grabAndPush(bytes, SRS_PUSH_ADDRESS);
 } catch (Exception e) {
 //throw new RuntimeException(e);
 }

 }
 }
 }
 try {
 Thread.sleep(500);
 } catch (InterruptedException e) {
 throw new RuntimeException(e);
 }
 }

 }
 });
 while (true) {

 }
 }

 private static synchronized void grabAndPush(byte[] bytes, String pushAddress) throws Exception {
 avutil.av_log_set_level(avutil.AV_LOG_INFO);
 FFmpegLogCallback.set();

 FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(new ByteArrayInputStream(bytes));


 grabber.setFormat("dhav");
 grabber.start();

 AVFormatContext avFormatContext = grabber.getFormatContext();

 int streamNum = avFormatContext.nb_streams();

 if (streamNum < 1) {
 log.error("no media!");
 return;
 }

 int frameRate = (int) grabber.getVideoFrameRate();
 if (0 == frameRate) {
 frameRate = 15;
 }
 log.info("frameRate[{}]，duration[{}]秒，nb_streams[{}]",
 frameRate,
 avFormatContext.duration() / 1000000,
 avFormatContext.nb_streams());

 for (int i = 0; i < streamNum; i++) {
 AVStream avStream = avFormatContext.streams(i);
 AVCodecParameters avCodecParameters = avStream.codecpar();
 log.info("stream index[{}]，codec type[{}]，codec ID[{}]", i, avCodecParameters.codec_type(), avCodecParameters.codec_id());
 }

 int frameWidth = grabber.getImageWidth();
 int frameHeight = grabber.getImageHeight();
 int audioChannels = grabber.getAudioChannels();

 log.info("frameWidth[{}]，frameHeight[{}]，audioChannels[{}]",
 frameWidth,
 frameHeight,
 audioChannels);

 FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(pushAddress,
 frameWidth,
 frameHeight,
 audioChannels);

 recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
 recorder.setInterleaved(true);

 recorder.setFormat("flv");

 recorder.setFrameRate(frameRate);

 recorder.setGopSize(frameRate);

 recorder.setAudioChannels(grabber.getAudioChannels());


 recorder.start();


 Frame frame;


 log.info("start push");

 int videoFrameNum = 0;
 int audioFrameNum = 0;
 int dataFrameNum = 0;

 int interVal = 1000 / frameRate;
 interVal /= 8;

 while (null != (frame = grabber.grab())) {

 if (null != frame.image) {
 videoFrameNum++;
 }

 if (null != frame.samples) {
 audioFrameNum++;
 }

 if (null != frame.data) {
 dataFrameNum++;
 }

 recorder.record(frame);

 Thread.sleep(interVal);
 }

 log.info("push complete，videoFrameNum[{}]，audioFrameNum[{}]，dataFrameNum[{}]",
 videoFrameNum,
 audioFrameNum,
 dataFrameNum);

 recorder.close();
 grabber.close();
 }


}


Syndiquer tout le site
