77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/* GStreamer mpeg2enc (mjpegtools) wrapper
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* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* (c) 2006 Mark Nauwelaerts <manauw@skynet.be>
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*
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* gstmpeg2encstreamwriter.cc: GStreamer/mpeg2enc output wrapper
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstmpeg2enc.hh"
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#include "gstmpeg2encstreamwriter.hh"
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#include <string.h>
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/*
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* Class init stuff.
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*/
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GstMpeg2EncStreamWriter::GstMpeg2EncStreamWriter (GstVideoEncoder * venc,
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EncoderParams * params)
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{
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video_encoder = GST_VIDEO_ENCODER_CAST (gst_object_ref (venc));
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}
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GstMpeg2EncStreamWriter::~GstMpeg2EncStreamWriter ()
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{
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gst_object_unref (video_encoder);
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}
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void
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GstMpeg2EncStreamWriter::WriteOutBufferUpto (const guint8 * buffer,
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const guint32 flush_upto)
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{
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GstVideoCodecFrame *frame;
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GstBuffer *buf;
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GstMpeg2enc *enc = GST_MPEG2ENC (video_encoder);
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GstFlowReturn ret;
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frame = gst_video_encoder_get_oldest_frame (video_encoder);
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g_assert (frame != NULL);
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buf = gst_buffer_new_and_alloc (flush_upto);
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gst_buffer_fill (buf, 0, buffer, flush_upto);
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flushed += flush_upto;
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frame->output_buffer = buf;
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/* this should not block anything else (e.g. handle_frame), but if it does,
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* it's ok as mpeg2enc is not really a loop-based element, but push-based */
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ret = gst_video_encoder_finish_frame (video_encoder, frame);
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gst_video_codec_frame_unref (frame);
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GST_MPEG2ENC_MUTEX_LOCK (enc);
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enc->srcresult = ret;
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GST_MPEG2ENC_MUTEX_UNLOCK (enc);
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}
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guint64
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GstMpeg2EncStreamWriter::BitCount ()
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{
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return flushed * 8ll;
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}
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