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https://github.com/tuxbox-neutrino/libstb-hal.git
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75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/*
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* linuxdvb output/writer handling
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*
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* Copyright (C) 2010 crow
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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 <errno.h>
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#include <sys/uio.h>
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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 WriterH263 : 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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WriterH263();
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};
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bool WriterH263::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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int HeaderLength = InsertPesHeader(PesHeader, packet->size, H263_VIDEO_PES_START_CODE, pts, 0);
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int PrivateHeaderLength = InsertVideoPrivateDataHeader(&PesHeader[HeaderLength], packet->size);
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int PesLength = PesHeader[PES_LENGTH_BYTE_0] + (PesHeader[PES_LENGTH_BYTE_1] << 8) + PrivateHeaderLength;
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PesHeader[PES_LENGTH_BYTE_0] = PesLength & 0xff;
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PesHeader[PES_LENGTH_BYTE_1] = (PesLength >> 8) & 0xff;
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PesHeader[PES_HEADER_DATA_LENGTH_BYTE] += PrivateHeaderLength;
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PesHeader[PES_FLAGS_BYTE] |= PES_EXTENSION_DATA_PRESENT;
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HeaderLength += PrivateHeaderLength;
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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 = HeaderLength;
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iov[1].iov_base = packet->data;
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iov[1].iov_len = packet->size;
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return writev(fd, iov, 2) > -1;
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}
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WriterH263::WriterH263()
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{
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Register(this, AV_CODEC_ID_H263, VIDEO_ENCODING_H263);
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Register(this, AV_CODEC_ID_H263P, VIDEO_ENCODING_H263);
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Register(this, AV_CODEC_ID_H263I, VIDEO_ENCODING_H263);
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Register(this, AV_CODEC_ID_FLV1, VIDEO_ENCODING_FLV1);
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}
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static WriterH263 writer_h263 __attribute__ ((init_priority (300)));
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