mirror of
https://github.com/tuxbox-neutrino/libstb-hal.git
synced 2025-08-30 08:51:11 +02:00
lib cleanup and sync for mips vu support
This commit is contained in:
283
libeplayer3/output/writer/mipsel/mpeg2.c
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283
libeplayer3/output/writer/mipsel/mpeg2.c
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/*
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* linuxdvb output/writer handling.
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*
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* konfetti 2010 based on linuxdvb.c code from libeplayer2
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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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/* ***************************** */
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/* Includes */
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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 <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/uio.h>
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#include <linux/dvb/video.h>
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#include <linux/dvb/audio.h>
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#include <memory.h>
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#include <asm/types.h>
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#include <pthread.h>
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#include <errno.h>
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#include "stm_ioctls.h"
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#include "bcm_ioctls.h"
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#include "common.h"
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#include "output.h"
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#include "debug.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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/* ***************************** */
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/* Makros/Constants */
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/* ***************************** */
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/* ***************************** */
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/* Types */
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/* ***************************** */
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/* ***************************** */
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/* Variables */
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/* ***************************** */
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static bool must_send_header = true;
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static uint8_t *private_data = NULL;
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static uint32_t private_size = 0;
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/* ***************************** */
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/* Prototypes */
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/* ***************************** */
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/* ***************************** */
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/* MISC Functions */
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/* ***************************** */
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static int reset()
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{
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must_send_header = true;
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return 0;
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}
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static int writeData(WriterAVCallData_t *call)
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{
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static uint8_t PesHeader[PES_MAX_HEADER_SIZE];
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mpeg2_printf(10, "\n");
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if (call == NULL)
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{
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mpeg2_err("call data is NULL...\n");
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return 0;
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}
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mpeg2_printf(10, "VideoPts %lld\n", call->Pts);
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if ((call->data == NULL) || (call->len <= 0))
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{
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mpeg2_err("parsing NULL Data. ignoring...\n");
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return 0;
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}
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if (call->fd < 0)
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{
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mpeg2_err("file pointer < 0. ignoring ...\n");
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return 0;
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}
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uint8_t *data = call->data;
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uint32_t data_len = call->len;
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if (!private_data && !call->private_data && data_len > 3 && !memcmp(data, "\x00\x00\x01\xb3", 4))
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{
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bool ok = true;
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uint32_t pos = 4;
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uint32_t sheader_data_len = 0;
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while (pos < data_len && ok)
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{
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if (pos >= data_len) break;
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pos += 7;
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if (pos >= data_len) break;
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sheader_data_len = 12;
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if (data[pos] & 2)
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{
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// intra matrix
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pos += 64;
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if (pos >= data_len) break;
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sheader_data_len += 64;
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}
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if (data[pos] & 1)
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{
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// non intra matrix
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pos += 64;
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if (pos >= data_len) break;
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sheader_data_len += 64;
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}
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pos += 1;
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if (pos + 3 >= data_len) break;
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if (!memcmp(&data[pos], "\x00\x00\x01\xb5", 4))
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{
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// extended start code
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pos += 3;
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sheader_data_len += 3;
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do
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{
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pos += 1;
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++sheader_data_len;
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if (pos + 2 > data_len)
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{
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ok = false;
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break;
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}
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}
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while (memcmp(&data[pos], "\x00\x00\x01", 3));
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if (!ok) break;
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}
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if (pos + 3 >= data_len) break;
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if (!memcmp(&data[pos], "\x00\x00\x01\xb2", 4))
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{
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// private data
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pos += 3;
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sheader_data_len += 3;
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do
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{
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pos += 1;
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++sheader_data_len;
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if (pos + 2 > data_len)
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{
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ok = false;
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break;
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}
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}
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while (memcmp(&data[pos], "\x00\x00\x01", 3));
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if (!ok) break;
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}
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free(private_data);
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private_data = malloc(sheader_data_len);
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if (private_data)
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{
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private_size = sheader_data_len;
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memcpy(private_data, data + pos - sheader_data_len, sheader_data_len);
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}
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must_send_header = false;
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break;
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}
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}
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else if ((private_data || call->private_data) && must_send_header)
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{
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uint8_t *codec_data = NULL;
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uint32_t codec_data_size = 0;
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int pos = 0;
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if (private_data)
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{
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codec_data = private_data;
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codec_data_size = private_size;
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}
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else
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{
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codec_data = call->private_data;
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codec_data_size = call->private_size;
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}
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while ((unsigned)pos <= data_len - 4)
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{
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if (memcmp(&data[pos], "\x00\x00\x01\xb8", 4)) /* find group start code */
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{
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pos++;
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continue;
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}
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struct iovec iov[4];
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iov[0].iov_base = PesHeader;
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iov[0].iov_len = InsertPesHeader(PesHeader, call->len + codec_data_size, MPEG_VIDEO_PES_START_CODE, call->Pts, 0);
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iov[1].iov_base = data;
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iov[1].iov_len = pos;
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iov[2].iov_base = codec_data;
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iov[2].iov_len = codec_data_size;
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iov[3].iov_base = data + pos;
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iov[3].iov_len = data_len - pos;
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must_send_header = false;
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return call->WriteV(call->fd, iov, 4);
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}
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}
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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, call->len, MPEG_VIDEO_PES_START_CODE, call->Pts, 0);
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iov[1].iov_base = data;
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iov[1].iov_len = data_len;
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PesHeader[6] = 0x81;
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UpdatePesHeaderPayloadSize(PesHeader, data_len + iov[0].iov_len - 6);
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if (iov[0].iov_len != (unsigned)WriteExt(call->WriteV, call->fd, iov[0].iov_base, iov[0].iov_len)) return -1;
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if (iov[1].iov_len != (unsigned)WriteExt(call->WriteV, call->fd, iov[1].iov_base, iov[1].iov_len)) return -1;
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return 1;
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}
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/* ***************************** */
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/* Writer Definition */
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/* ***************************** */
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static WriterCaps_t caps =
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{
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"mpeg2",
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eVideo,
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"V_MPEG2",
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VIDEO_ENCODING_AUTO,
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STREAMTYPE_MPEG2,
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-1
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};
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struct Writer_s WriterVideoMPEG2 =
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{
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&reset,
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&writeData,
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&caps
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};
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static WriterCaps_t mpg1_caps =
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{
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"mpge1",
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eVideo,
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"V_MPEG1",
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VIDEO_ENCODING_AUTO,
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STREAMTYPE_MPEG1,
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-1
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};
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struct Writer_s WriterVideoMPEG1 =
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{
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&reset,
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&writeData,
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&mpg1_caps
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};
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