summaryrefslogtreecommitdiffstats
path: root/src/dabInputPacketFile.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/dabInputPacketFile.cpp')
-rw-r--r--src/dabInputPacketFile.cpp263
1 files changed, 0 insertions, 263 deletions
diff --git a/src/dabInputPacketFile.cpp b/src/dabInputPacketFile.cpp
deleted file mode 100644
index 867d9fc..0000000
--- a/src/dabInputPacketFile.cpp
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- Copyright (C) 2009, 2011 Her Majesty the Queen in Right of Canada
- (Communications Research Center Canada)
- */
-/*
- This file is part of ODR-DabMux.
-
- ODR-DabMux is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as
- published by the Free Software Foundation, either version 3 of the
- License, or (at your option) any later version.
-
- ODR-DabMux is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "dabInputPacketFile.h"
-#include "dabInputFile.h"
-#include "dabInputFifo.h"
-#include "ReedSolomon.h"
-
-#ifdef HAVE_FORMAT_PACKET
-# ifdef HAVE_INPUT_FILE
-
-
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-
-
-#ifdef _WIN32
-# pragma pack(push, 1)
-#endif
-struct packetHeader {
- unsigned char addressHigh:2;
- unsigned char last:1;
- unsigned char first:1;
- unsigned char continuityIndex:2;
- unsigned char packetLength:2;
- unsigned char addressLow;
- unsigned char dataLength:7;
- unsigned char command;
-}
-#ifdef _WIN32
-# pragma pack(pop)
-#else
-__attribute((packed))
-#endif
-;
-
-
-struct dabInputOperations dabInputPacketFileOperations = {
- dabInputFileInit,
- dabInputFileOpen,
- dabInputSetbuf,
- dabInputFileRead,
- nullptr,
- nullptr,
- dabInputPacketFileRead,
- dabInputSetbitrate,
- dabInputFileClose,
- dabInputFileClean,
- dabInputFileRewind
-};
-
-
-int dabInputPacketFileRead(dabInputOperations* ops, void* args, void* buffer,
- int size)
-{
- dabInputFileData* data = (dabInputFileData*)args;
- unsigned char* dataBuffer = (unsigned char*)buffer;
- int written = 0;
- int length;
- packetHeader* header;
- int indexRow;
- int indexCol;
-
- while (written < size) {
- if (data->enhancedPacketWaiting > 0) {
- *dataBuffer = 192 - data->enhancedPacketWaiting;
- *dataBuffer /= 22;
- *dataBuffer <<= 2;
- *(dataBuffer++) |= 0x03;
- *(dataBuffer++) = 0xfe;
- indexCol = 188;
- indexCol += (192 - data->enhancedPacketWaiting) / 12;
- indexRow = 0;
- indexRow += (192 - data->enhancedPacketWaiting) % 12;
- for (int j = 0; j < 22; ++j) {
- if (data->enhancedPacketWaiting == 0) {
- *(dataBuffer++) = 0;
- } else {
- *(dataBuffer++) = data->enhancedPacketData[indexRow][indexCol];
- if (++indexRow == 12) {
- indexRow = 0;
- ++indexCol;
- }
- --data->enhancedPacketWaiting;
- }
- }
- written += 24;
- if (data->enhancedPacketWaiting == 0) {
- data->enhancedPacketLength = 0;
- }
- } else if (data->packetLength != 0) {
- header = (packetHeader*)data->packetData;
- if (written + data->packetLength > (unsigned)size) {
- memset(dataBuffer, 0, 22);
- dataBuffer[22] = 0x60;
- dataBuffer[23] = 0x4b;
- length = 24;
- } else if (data->enhancedPacketData != nullptr) {
- if (data->enhancedPacketLength + data->packetLength
- > (12 * 188)) {
- memset(dataBuffer, 0, 22);
- dataBuffer[22] = 0x60;
- dataBuffer[23] = 0x4b;
- length = 24;
- } else {
- memcpy(dataBuffer, data->packetData, data->packetLength);
- length = data->packetLength;
- data->packetLength = 0;
- }
- } else {
- memcpy(dataBuffer, data->packetData, data->packetLength);
- length = data->packetLength;
- data->packetLength = 0;
- }
- if (data->enhancedPacketData != nullptr) {
- indexCol = data->enhancedPacketLength / 12;
- indexRow = data->enhancedPacketLength % 12; // TODO Check if always 0
- for (int j = 0; j < length; ++j) {
- data->enhancedPacketData[indexRow][indexCol] = dataBuffer[j];
- if (++indexRow == 12) {
- indexRow = 0;
- ++indexCol;
- }
- }
- data->enhancedPacketLength += length;
- if (data->enhancedPacketLength >= (12 * 188)) {
- data->enhancedPacketLength = (12 * 188);
- ReedSolomon encoder(204, 188);
- for (int j = 0; j < 12; ++j) {
- encoder.encode(data->enhancedPacketData[j], 188);
- }
- data->enhancedPacketWaiting = 192;
- }
- }
- written += length;
- dataBuffer += length;
- } else {
- int nbBytes = ops->read(args, dataBuffer, 3);
- header = (packetHeader*)dataBuffer;
- if (nbBytes == -1) {
- if (errno == EAGAIN) goto END_PACKET;
- perror("Packet file");
- return -1;
- } else if (nbBytes == 0) {
- if (ops->rewind(args) == -1) {
- goto END_PACKET;
- }
- continue;
- } else if (nbBytes < 3) {
- etiLog.log(error,
- "Error while reading file for packet header; "
- "read %i out of 3 bytes\n", nbBytes);
- break;
- }
-
- length = header->packetLength * 24 + 24;
- if (written + length > size) {
- memcpy(data->packetData, header, 3);
- ops->read(args, &data->packetData[3], length - 3);
- data->packetLength = length;
- continue;
- }
- if (data->enhancedPacketData != nullptr) {
- if (data->enhancedPacketLength + length > (12 * 188)) {
- memcpy(data->packetData, header, 3);
- ops->read(args, &data->packetData[3], length - 3);
- data->packetLength = length;
- continue;
- }
- }
- nbBytes = ops->read(args, dataBuffer + 3, length - 3);
- if (nbBytes == -1) {
- perror("Packet file");
- return -1;
- } else if (nbBytes == 0) {
- etiLog.log(info,
- "Packet header read, but no data!\n");
- if (ops->rewind(args) == -1) {
- goto END_PACKET;
- }
- continue;
- } else if (nbBytes < length - 3) {
- etiLog.log(error, "Error while reading packet file; "
- "read %i out of %i bytes\n", nbBytes, length - 3);
- break;
- }
- if (data->enhancedPacketData != nullptr) {
- indexCol = data->enhancedPacketLength / 12;
- indexRow = data->enhancedPacketLength % 12; // TODO Check if always 0
- for (int j = 0; j < length; ++j) {
- data->enhancedPacketData[indexRow][indexCol] = dataBuffer[j];
- if (++indexRow == 12) {
- indexRow = 0;
- ++indexCol;
- }
- }
- data->enhancedPacketLength += length;
- if (data->enhancedPacketLength >= (12 * 188)) {
- if (data->enhancedPacketLength > (12 * 188)) {
- etiLog.log(error,
- "Error, too much enhanced packet data!\n");
- }
- ReedSolomon encoder(204, 188);
- for (int j = 0; j < 12; ++j) {
- encoder.encode(data->enhancedPacketData[j], 188);
- }
- data->enhancedPacketWaiting = 192;
- }
- }
- written += length;
- dataBuffer += length;
- }
- }
-END_PACKET:
- if (ops->read == dabInputFifoRead) {
- dabInputFifoData* fifoData = (dabInputFifoData*)args;
- dabInputFifoStats* fifoStats = (dabInputFifoStats*)&fifoData->stats;
- fifoStats->frameRecords[fifoStats->frameCount].curSize = written;
- fifoStats->frameRecords[fifoStats->frameCount].maxSize = size;
- if (++fifoStats->frameCount == NB_RECORDS) {
- etiLog.log(info, "Packet subchannel usage: (%i)",
- fifoStats->id);
- for (int i = 0; i < fifoStats->frameCount; ++i) {
- etiLog.log(info, " %i/%i",
- fifoStats->frameRecords[i].curSize,
- fifoStats->frameRecords[i].maxSize);
- }
- etiLog.log(info, "\n");
- fifoStats->frameCount = 0;
- }
- }
- while (written < size) {
- memset(dataBuffer, 0, 22);
- dataBuffer[22] = 0x60;
- dataBuffer[23] = 0x4b;
- dataBuffer += 24;
- written += 24;
- }
- return written;
-}
-
-
-# endif
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-21 22:55:35 +0000