src/api/media_stream_choose_best.c

   1 /* libquvi
   2  * Copyright (C) 2012  Toni Gundogdu <legatvs@gmail.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301  USA
  18  */
  19
  20 /** @file media_stream_choose_best.c */
  21
  22 #include "config.h"
  23
  24 #include <glib.h>
  25
  26 #include "quvi.h"
  27 /* -- */
  28 #include "_quvi_s.h"
  29 #include "_quvi_media_s.h"
  30
  31 /** @brief Selects the @ref m_stream that was determined to be of the "best quality"
  32 @note
  33   - Only useful when there are >1 media streams available, otherwise the
  34     function falls back to the first available @ref m_stream (the
  35     default)
  36   - The @ref m_script determines the best quality @ref m_stream
  37 @sa @ref parse_media
  38 @ingroup mediaprop
  39 */
  40 void quvi_media_stream_choose_best(quvi_media_t handle)
  41 {
  42   _quvi_media_stream_t qms;
  43   _quvi_media_t qm;
  44
  45   qm = (_quvi_media_t) handle;
  46
  47   /* If G_DISABLE_CHECKS is defined then the check is not performed. */
  48   g_return_if_fail(handle != NULL);
  49
  50   quvi_media_stream_reset(qm);
  51
  52   while (quvi_media_stream_next(qm) == QUVI_TRUE)
  53     {
  54       qms = (_quvi_media_stream_t) qm->curr.stream->data;
  55       g_assert(qms != NULL);
  56
  57       if (qms->flags.best == TRUE)
  58         break;
  59     }
  60
  61   /*
  62    * If nothing was flagged as such, let it fall through.
  63    * Use whatever is the first.
  64    */
  65 }
  66
  67 /* vim: set ts=2 sw=2 tw=72 expandtab: */