mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 10:11:08 +00:00
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/* GStreamer mpeg2enc (mjpegtools) wrapper
|
|
* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
* (c) 2006 Mark Nauwelaerts <manauw@skynet.be>
|
|
*
|
|
* gstmpeg2encstreamwriter.cc: GStreamer/mpeg2enc output wrapper
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gstmpeg2enc.hh"
|
|
#include "gstmpeg2encstreamwriter.hh"
|
|
#include <string.h>
|
|
|
|
/*
|
|
* Class init stuff.
|
|
*/
|
|
|
|
GstMpeg2EncStreamWriter::GstMpeg2EncStreamWriter (GstVideoEncoder * venc,
|
|
EncoderParams * params)
|
|
{
|
|
video_encoder = GST_VIDEO_ENCODER_CAST (gst_object_ref (venc));
|
|
}
|
|
|
|
GstMpeg2EncStreamWriter::~GstMpeg2EncStreamWriter ()
|
|
{
|
|
gst_object_unref (video_encoder);
|
|
}
|
|
|
|
void
|
|
GstMpeg2EncStreamWriter::WriteOutBufferUpto (const guint8 * buffer,
|
|
const guint32 flush_upto)
|
|
{
|
|
GstVideoCodecFrame *frame;
|
|
GstBuffer *buf;
|
|
GstMpeg2enc *enc = GST_MPEG2ENC (video_encoder);
|
|
GstFlowReturn ret;
|
|
|
|
frame = gst_video_encoder_get_oldest_frame (video_encoder);
|
|
g_assert (frame != NULL);
|
|
|
|
buf = gst_buffer_new_and_alloc (flush_upto);
|
|
gst_buffer_fill (buf, 0, buffer, flush_upto);
|
|
flushed += flush_upto;
|
|
frame->output_buffer = buf;
|
|
|
|
/* this should not block anything else (e.g. handle_frame), but if it does,
|
|
* it's ok as mpeg2enc is not really a loop-based element, but push-based */
|
|
ret = gst_video_encoder_finish_frame (video_encoder, frame);
|
|
gst_video_codec_frame_unref (frame);
|
|
GST_MPEG2ENC_MUTEX_LOCK (enc);
|
|
enc->srcresult = ret;
|
|
GST_MPEG2ENC_MUTEX_UNLOCK (enc);
|
|
}
|
|
|
|
guint64
|
|
GstMpeg2EncStreamWriter::BitCount ()
|
|
{
|
|
return flushed * 8ll;
|
|
}
|