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/*
* Copyright (C) 2011 Nokia Corporation.
*
* Author: Luis de Bethencourt <luis.debethencourt@collabora.com>
*
* This file is part of Rygel.
*
* Rygel is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Rygel is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
using Gst;
using GUPnP;
/**
* Transcoder for H.264 in MP4 conforming to DLNA profile
* AVC_MP4_BL_CIF15_AAC_520 (15 fps, CIF resolution)
*/
internal class Rygel.AVCTranscoder : Rygel.VideoTranscoder {
private const int VIDEO_BITRATE = 1200;
private const int AUDIO_BITRATE = 64;
private const string CONTAINER = "video/quicktime,variant=iso";
private const string AUDIO_CAPS = "audio/mpeg,mpegversion=4";
private const string VIDEO_CAPS =
"video/x-h264,stream-format=avc";
private const string RESTRICTIONS =
"video/x-raw-yuv,framerate=(fraction)15/1,width=352,height=288";
public AVCTranscoder () {
base ("video/mp4",
"AVC_MP4_BL_CIF15_AAC_520",
AUDIO_BITRATE,
VIDEO_BITRATE,
CONTAINER,
AUDIO_CAPS,
VIDEO_CAPS,
"mp4",
RESTRICTIONS);
this.preset = "Rygel AVC_MP4_BL_CIF15_AAC_520 preset";
}
public override DIDLLiteResource? add_resource (DIDLLiteItem didl_item,
MediaItem item,
TranscodeManager manager)
throws Error {
var resource = base.add_resource (didl_item, item, manager);
if (resource == null) {
return null;
}
resource.width = 352;
resource.height = 288;
return resource;
}
}
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