{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Exemplos de carregamento de sinais de áudio e vídeo de urls e arquivos locais"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import io\n",
    "from urllib.request import urlopen\n",
    "import scipy.io.wavfile as wavfile\n",
    "import soundfile as sf\n",
    "from imageio import imread\n",
    "import matplotlib.pyplot as plt\n",
    "import IPython.display as ipd"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# para abrir arquivo wav de url:\n",
    "url=\"http://static1.grsites.com/archive/sounds/bells/bells004.wav\"\n",
    "x, rate = sf.read(io.BytesIO(urlopen(url).read()))\n",
    "plt.plot(x)\n",
    "plt.show()\n",
    "ipd.Audio(x.T, rate=rate)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# para abrir arquivo wav local (use um arquivo que esteja no mesmo local):\n",
    "rate, x = wavfile.read('bells004.wav')\n",
    "plt.plot(x)\n",
    "plt.show()\n",
    "ipd.Audio(x.T, rate=rate)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# para abrir imagem de url\n",
    "url = \"http://sutherncharm.files.wordpress.com/2009/09/double-ferris.jpg\"\n",
    "M = imread(urlopen(url).read())\n",
    "plt.imshow(M)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# escolha um arquivo que esteja no mesmo local\n",
    "M = imread(\"double-ferris.jpg\")\n",
    "plt.imshow(M)"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.7.6"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}