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• Android ffmpeg using

  6 juin 2012, par Vardan Gevorgyan

  I have successfully compiled ffmpeg for android.
  I have wrote simple application which just open mp4 file :

  int main(int argc, char * argv[]) 
  
  {
  
      av_register_all();
  
  
  
      __android_log_write(ANDROID_LOG_INFO, "NDK", "Opening file: /sdcard/test.mp4...");
  
  
  
      if (avformat_open_input(&pFormatCtx, "/sdcard/test.mp4", NULL, NULL) != 0) {
  
          __android_log_write(ANDROID_LOG_INFO, "NDK", "file not opened\n");
  
          return -1;
  
      }
  
      __android_log_write(ANDROID_LOG_INFO, "NDK", "file opened\n");
  
  }

  When I run this code the C code crashes here :

  06-06 18:22:42.629: I/DEBUG(31):          #00  pc 00159804  /data/data libffmpeg.so
  
  06-06 18:22:42.629: I/DEBUG(31):          #01  lr 809465dc  /data/data libffmpeg.so

  ndk-stack write :

  Stack frame #00  pc 00159804  /data/data/.../lib/libffmpeg.so: Routine av_opt_set_dict in libavutil/opt.c:552

  Which is av_opt_set_dict function :

  int av_opt_set_dict(void *obj, AVDictionary **options)
  
  {
  
      AVDictionaryEntry *t = NULL;
  
      AVDictionary    *tmp = NULL;
  
      int ret = 0;
  
  
  
      while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
  
          ret = av_set_string3(obj, t->key, t->value, 1, NULL);
  
          if (ret == AVERROR_OPTION_NOT_FOUND)
  
              av_dict_set(&tmp, t->key, t->value, 0);
  
          else if (ret < 0) {
  
              av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
  
              break;
  
          }
  
          ret = 0;
  
      }
  
      av_dict_free(options);
  
      *options = tmp;
  
      return ret;
  
  }

  552 line is :

  while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {

  This code working on my linux machine (of course with .so for linux, for android I use ndk built .so file), but not under android.

  Also, it's working on my rooted HTC Desire Z, but not on emulator or un-rooted device.

  Here I found the post that I need to change libavformat/file.c file_check function :

  static int file_check(URLContext *h, int mask)
  
  {
  
      struct stat st;
  
      int ret = stat(h->filename, &st);
  
      if (ret < 0)
  
          return AVERROR(errno);
  
  
  
      ret |= st.st_mode&S_IRUSR ? mask&AVIO_FLAG_READ  : 0;
  
      ret |= st.st_mode&S_IWUSR ? mask&AVIO_FLAG_WRITE : 0;
  
  
  
      return ret;
  
  }

  to

  static int file_check(URLContext *h, int mask)
  
  {
  
      struct stat st;
  
      int ret = stat(h->filename, &st);
  
      if (ret < 0)
  
          return AVERROR(errno);
  
  
  
      ret |= st.st_mode&S_IRUSR ? mask&AVIO_FLAG_READ  : 0;
  
      ret |= st.st_mode&S_IRGRP ? mask&AVIO_FLAG_READ  : 0;
  
      ret |= st.st_mode&S_IROTH ? mask&AVIO_FLAG_READ  : 0;
  
      ret |= st.st_mode&S_IWUSR ? mask&AVIO_FLAG_WRITE : 0;
  
      ret |= st.st_mode&S_IWGRP ? mask&AVIO_FLAG_WRITE  : 0;
  
      ret |= st.st_mode&S_IWOTH ? mask&AVIO_FLAG_WRITE  : 0;
  
  
  
  
  
      return ret;
  
  }

  but it wasn't help.

  Any suggestions ?

  Thanks

• Revision 79003 : Pipeline "afficher_contenu_objet" : prendre en compte le cas où ...

  30 novembre 2013, par tcharlss@… — Log

  Pipeline "afficher_contenu_objet" : prendre en compte le cas où l’identifiant de l’objet n’est pas donné par $fluxargs ?id_objet ? mais par $fluxargs ?contexte ?id ?.
  Problème constaté sur la fiche d’une commande.
  ps : De plus, l’exemple du site ​http://programmer.spip.net/afficher_contenu_objet,434 récupère l’identifiant avec $fluxargs ?id ?…

• Getting error on video with Ruby on Rails 4 App

  30 avril 2016, par D.Graves

  So this is the error I get right after I try and upload my video

  

  This is my post show

  <%= video_tag @post.video.url(:medium), controls: true, style: "max-width: 100%;" %>
  
  
  
  <p>
  
    <strong>Description:</strong>
  
  &lt;%= @post.description %>
  
  </p>
  
    &lt;% if @post.user == current_user %>
  
    &lt;%= link_to 'Edit', edit_post_path(@post) %> 
  
  &lt;% end %>|
  
  &lt;%= link_to 'Back', posts_path %>

  This is my post model

  class Post < ActiveRecord::Base
  
   belongs_to :user
  
  
  
   has_attached_file :video, styles: {
  
      :medium => {
  
        :geometry => "640x480",
  
        :format => 'mp4'
  
      },
  
      :thumb => { :geometry => "160x120", :format => 'jpeg', :time => 10}
  
  }, :processors => [:transcoder]
  
  validates_attachment_content_type :video, content_type: /\Avideo\/.*\Z/
  
  end

  I am curious if anyone has run into this before and I am wondering if I can get any help on how to fix this. I am using paperclip av-transcoder gem, ffmpeg and paperclip gem. I can add any more information if needed

  Here is my post controller if this helps

  def index
  
  @posts = Post.all
  
  end
  
  
  
  def show
  
  end
  
  
  
  def new
  
  @post = current_user.posts.build
  
  end
  
  
  
  def edit
  
  end
  
  
  
  def create
  
  @post = current_user.posts.build(post_params)
  
  if @post.save
  
    redirect_to @post, notice: 'Post was successfully created.'
  
  else
  
    render :new
  
  end
  
  end
  
  
  
  def update
  
  if @post.update(post_params)
  
    redirect_to @post, notice: 'Post was successfully updated.'
  
  else
  
    render :edit
  
  end
  
  end
  
  
  
  def destroy
  
  @post.destroy
  
  redirect_to posts_url
  
  end
  
  
  
  private
  
  def set_post
  
    @post = Post.find_by(id: params[:id])
  
  end
  
  
  
  def correct_user
  
    @post = current_user.posts.find_by(id: params[:id])
  
    redirect_to posts_path, notice: "Not authorized to edit this post" if @post.nil?
  
  end
  
  
  
  def post_params
  
    params.require(:post).permit(:description, :video)
  
  end
  
  
  
  
  
   end