mirror of
https://github.com/tuxbox-neutrino/libstb-hal.git
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7e5b1fc5d2
Conflicts: libarmbox/dmx.cpp libgeneric-pc/video_lib.h libspark/dmx.cpp Signed-off-by: Thilo Graf <dbt@novatux.de>
119 lines
3.3 KiB
C++
119 lines
3.3 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <memory.h>
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#include <asm/types.h>
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#include "misc.h"
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#include "pes.h"
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int InsertVideoPrivateDataHeader(uint8_t *data, int payload_size)
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{
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BitPacker_t ld2 = { data, 0, 32 };
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int i;
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PutBits(&ld2, PES_PRIVATE_DATA_FLAG, 8);
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PutBits(&ld2, payload_size & 0xff, 8);
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PutBits(&ld2, (payload_size >> 8) & 0xff, 8);
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PutBits(&ld2, (payload_size >> 16) & 0xff, 8);
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for (i = 4; i < (PES_PRIVATE_DATA_LENGTH + 1); i++)
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PutBits(&ld2, 0, 8);
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FlushBits(&ld2);
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return PES_PRIVATE_DATA_LENGTH + 1;
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}
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int InsertPesHeader(uint8_t *data, int size, uint8_t stream_id, int64_t pts, int pic_start_code)
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{
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BitPacker_t ld2 = { data, 0, 32 };
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/* if (size > MAX_PES_PACKET_SIZE)
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size = 0; // unbounded */
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PutBits(&ld2, 0x0, 8);
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PutBits(&ld2, 0x0, 8);
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PutBits(&ld2, 0x1, 8); // Start Code
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PutBits(&ld2, stream_id, 8); // Stream_id = Audio Stream
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//4
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PutBits(&ld2, size + 3 + (pts != INVALID_PTS_VALUE ? 5 : 0) + (pic_start_code ? (5) : 0), 16); // PES_packet_length
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//6 = 4+2
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PutBits(&ld2, 0x2, 2); // 10
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PutBits(&ld2, 0x0, 2); // PES_Scrambling_control
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PutBits(&ld2, 0x0, 1); // PES_Priority
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PutBits(&ld2, 0x0, 1); // data_alignment_indicator
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PutBits(&ld2, 0x0, 1); // Copyright
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PutBits(&ld2, 0x0, 1); // Original or Copy
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//7 = 6+1
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if (pts != INVALID_PTS_VALUE)
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PutBits(&ld2, 0x2, 2);
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else
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PutBits(&ld2, 0x0, 2); // PTS_DTS flag
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PutBits(&ld2, 0x0, 1); // ESCR_flag
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PutBits(&ld2, 0x0, 1); // ES_rate_flag
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PutBits(&ld2, 0x0, 1); // DSM_trick_mode_flag
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PutBits(&ld2, 0x0, 1); // additional_copy_ingo_flag
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PutBits(&ld2, 0x0, 1); // PES_CRC_flag
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PutBits(&ld2, 0x0, 1); // PES_extension_flag
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//8 = 7+1
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if (pts != INVALID_PTS_VALUE)
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PutBits(&ld2, 0x5, 8);
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else
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PutBits(&ld2, 0x0, 8); // PES_header_data_length
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//9 = 8+1
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if (pts != INVALID_PTS_VALUE)
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{
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PutBits(&ld2, 0x2, 4);
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PutBits(&ld2, (pts >> 30) & 0x7, 3);
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PutBits(&ld2, 0x1, 1);
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PutBits(&ld2, (pts >> 15) & 0x7fff, 15);
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PutBits(&ld2, 0x1, 1);
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PutBits(&ld2, pts & 0x7fff, 15);
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PutBits(&ld2, 0x1, 1);
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}
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//14 = 9+5
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if (pic_start_code)
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{
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PutBits(&ld2, 0x0, 8);
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PutBits(&ld2, 0x0, 8);
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PutBits(&ld2, 0x1, 8); // Start Code
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PutBits(&ld2, pic_start_code & 0xff, 8); // 00, for picture start
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PutBits(&ld2, (pic_start_code >> 8) & 0xff, 8); // For any extra information (like in mpeg4p2, the pic_start_code)
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//14 + 5 = 19
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}
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FlushBits(&ld2);
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return (ld2.Ptr - data);
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}
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