[PATCH] command-line: youtube: add youtube download support

[bourrahim h. <bou...@gm...>]

Hello everyone,

  I'm new to cmus devel . I just wrote a small patch that allows user to
download converted mp4 files from youtube , the output is an mp3 file . I
avoided using many dev lib to do that . So i'm using youtube-dl and ffmpeg
via the command prompt . the patch is just for linux users . can be enabled
by using -D_YOUTUBE_DL . here it is

diff --git a/command_mode.c b/command_mode.c
index 5b37da6..f128233 100644
--- a/command_mode.c
+++ b/command_mode.c
@@ -1352,6 +1352,82 @@ static void cmd_pwd(char *arg)
  }
 }

+static void ydl_getStr_fromF(const char * file, char string[1025]){
+ FILE * fp = NULL;
+ char result[1025];
+
+ fp = fopen(file,"r");
+ if(!fp){
+ error_msg("error while checking a tmp file");
+ }else{
+ fscanf(fp,"%s\n",result);
+ strcpy(string, result);
+ fclose(fp);
+ }
+
+ return ;
+}
+
+static void cmd_youtube(char *arg){
+ /*
+ This function allows to download a music from youtube and play it
+ downloading .mp4 from youtube
+ Using FFmpeg CBR to convert .mp4 to .mp3
+ */
+#ifdef _YOUTUBE_DL
+#ifdef linux
+ char version[1025];
+ char cmd[1025];
+ char link[1025];
+
+ system("youtube-dl -v > /tmp/cmus-ydl.check");
+ /*  clear system error output , and refresh  */
+ clearok(curscr, TRUE);
+ refresh();
+
+ ydl_getStr_fromF("/tmp/cmus-ydl.check",version);
+ /* we will read file and get the version of youtube-dl
+ if youtube-dl is not installed . we show an error msg to the user
+ so as to install youtube-dl
+ */
+ if(!strstr(version,".")){
+ /* youtube-dl not installed */
+ error_msg("youtube-dl not installed, install it using apt-get install
youtube-dl");
+ }else{
+ snprintf(cmd,sizeof(cmd),"youtube-dl -g %s > /tmp/cmus-ydl.link", arg);
+ system(cmd);
+ clearok(curscr, TRUE);
+ refresh();
+ /*  Downlaod and convert the .mp4 file  */
+ ydl_getStr_fromF("/tmp/cmus-ydl.link",link);
+ error_msg("link %s => %s\n",arg,link);
+ if(strcmp(link,"") == 0){
+ error_msg("can't open '%s'",arg);
+ }else{
+ snprintf(cmd,sizeof(cmd),"wget \"%s\" -O video.mp4",link);
+ info_msg("Downloading..please wait");
+ system(cmd);
+ clearok(curscr, TRUE);
+ refresh();
+ info_msg("File downloaded! converting ..");
+ /* convert file */
+ snprintf(cmd,sizeof(cmd),"ffmpeg -i video.mp4 -vn -acodec libmp3lame -ac
2 -ab 160k -ar 48000  song.mp3");
+ system(cmd);
+ clearok(curscr, TRUE);
+ refresh();
+ info_msg("converted ! song.mp3");
+ }
+ }
+
+#else
+ error_msg("no Windows version !");
+#endif
+#else
+ error_msg("youtube-dl not supported !");
+#endif
+ return ;
+}
+
 static void cmd_rand(char *arg)
 {
  editable_lock();
@@ -2647,6 +2723,7 @@ struct command commands[] = {
  { "win-update", cmd_win_update, 0, 0, NULL,   0, 0 },
  { "win-update-cache", cmd_win_update_cache,0, 1, NULL,   0, 0 },
  { "wq", cmd_quit, 0, 1, NULL,   0, 0 },
+ { "youtube", cmd_youtube, 1, 1, NULL,   0, 0 },
  { NULL, NULL, 0, 0, 0,   0, 0 }
 };

waiting for your reviews and feedback .