mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
133 lines
4.5 KiB
C
133 lines
4.5 KiB
C
/*
|
|
* Copyright 2006, 2007, 2008 Fluendo S.A.
|
|
* Authors: Jan Schmidt <jan@fluendo.com>
|
|
* Kapil Agrawal <kapil@fluendo.com>
|
|
* Julien Moutte <julien@fluendo.com>
|
|
*
|
|
* This library is licensed under 3 different licenses and you
|
|
* can choose to use it under the terms of any one of them. The
|
|
* three licenses are the MPL 1.1, the LGPL and the MIT license.
|
|
*
|
|
* MPL:
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License
|
|
* Version 1.1 (the "License"); you may not use this file except in
|
|
* compliance with the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/.
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS"
|
|
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing rights and limitations
|
|
* under the License.
|
|
*
|
|
* LGPL:
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*
|
|
* MIT:
|
|
*
|
|
* Unless otherwise indicated, Source Code is licensed under MIT license.
|
|
* See further explanation attached in License Statement (distributed in the file
|
|
* LICENSE).
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is furnished to do
|
|
* so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
* SPDX-License-Identifier: MPL-1.1 OR MIT OR LGPL-2.0-or-later
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gstbasetsmuxopus.h"
|
|
#include <string.h>
|
|
#include <gst/audio/audio.h>
|
|
|
|
#define GST_CAT_DEFAULT gst_base_ts_mux_debug
|
|
|
|
GstBuffer *
|
|
gst_base_ts_mux_prepare_opus (GstBuffer * buf, GstBaseTsMuxPad * pad,
|
|
GstBaseTsMux * mux)
|
|
{
|
|
gssize insize = gst_buffer_get_size (buf);
|
|
gsize outsize;
|
|
GstBuffer *outbuf;
|
|
GstMapInfo map;
|
|
guint n;
|
|
GstAudioClippingMeta *cmeta = gst_buffer_get_audio_clipping_meta (buf);
|
|
|
|
g_assert (!cmeta || cmeta->format == GST_FORMAT_DEFAULT);
|
|
|
|
outsize = 2 + insize / 255 + 1;
|
|
if (cmeta && cmeta->start)
|
|
outsize += 2;
|
|
if (cmeta && cmeta->end)
|
|
outsize += 2;
|
|
|
|
outbuf = gst_buffer_new_and_alloc (outsize);
|
|
gst_buffer_copy_into (outbuf, buf,
|
|
GST_BUFFER_COPY_METADATA | GST_BUFFER_COPY_TIMESTAMPS, 0, 0);
|
|
gst_buffer_map (outbuf, &map, GST_MAP_WRITE);
|
|
map.data[0] = 0x7f;
|
|
map.data[1] = 0xe0;
|
|
|
|
if (cmeta && cmeta->start)
|
|
map.data[1] |= 0x10;
|
|
if (cmeta && cmeta->end)
|
|
map.data[1] |= 0x08;
|
|
|
|
n = 2;
|
|
do {
|
|
g_assert (n < outsize);
|
|
/* FIXME: this should be using insize for writing here but ffmpeg and the
|
|
* only available sample stream from obe.tv are not including the control
|
|
* header size in au_size
|
|
*/
|
|
map.data[n] = MIN (insize, 255);
|
|
insize -= 255;
|
|
n++;
|
|
} while (insize >= 0);
|
|
|
|
if (cmeta && cmeta->start) {
|
|
GST_WRITE_UINT16_BE (&map.data[n], cmeta->start);
|
|
n += 2;
|
|
}
|
|
|
|
if (cmeta && cmeta->end)
|
|
GST_WRITE_UINT16_BE (&map.data[n], cmeta->end);
|
|
|
|
gst_buffer_unmap (outbuf, &map);
|
|
|
|
outbuf = gst_buffer_append (outbuf, gst_buffer_ref (buf));
|
|
|
|
return outbuf;
|
|
}
|