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https://github.com/tuxbox-neutrino/libstb-hal.git
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73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
/*
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* linuxdvb output/writer handling
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*
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* Copyright (C) 2010 konfetti (based on code from libeplayer2)
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* Copyright (C) 2014 martii (based on code from libeplayer3)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/uio.h>
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#include <errno.h>
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#include <algorithm>
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#include "misc.h"
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#include "pes.h"
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#include "writer.h"
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class WriterAC3 : public Writer
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{
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public:
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bool Write(AVPacket *packet, int64_t pts);
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WriterAC3();
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};
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bool WriterAC3::Write(AVPacket *packet, int64_t pts)
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{
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if (!packet || !packet->data)
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return false;
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uint8_t PesHeader[PES_MAX_HEADER_SIZE];
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for (int pos = 0; pos < packet->size; ) {
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int PacketLength = std::min(packet->size - pos, MAX_PES_PACKET_SIZE);
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struct iovec iov[2];
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iov[0].iov_base = PesHeader;
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iov[0].iov_len = InsertPesHeader(PesHeader, PacketLength, PRIVATE_STREAM_1_PES_START_CODE, pts, 0);
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iov[1].iov_base = packet->data + pos;
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iov[1].iov_len = PacketLength;
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ssize_t l = writev(fd, iov, 2);
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if (l < 0)
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return false;
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pos += PacketLength;
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pts = INVALID_PTS_VALUE;
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}
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return true;
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}
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WriterAC3::WriterAC3()
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{
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Register(this, AV_CODEC_ID_AC3, AUDIO_ENCODING_AC3);
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Register(this, AV_CODEC_ID_EAC3, AUDIO_ENCODING_AC3);
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}
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static WriterAC3 writer_ac3 __attribute__ ((init_priority (300)));
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