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-rw-r--r--src/dabInputDabplusFile.cpp176
1 files changed, 176 insertions, 0 deletions
diff --git a/src/dabInputDabplusFile.cpp b/src/dabInputDabplusFile.cpp
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+++ b/src/dabInputDabplusFile.cpp
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+/*
+ Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications
+ Research Center Canada)
+ */
+/*
+ This file is part of CRC-DabMux.
+
+ CRC-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.
+
+ CRC-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 CRC-DabMux. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dabInputDabplusFile.h"
+#include "dabInput.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+
+#ifndef _WIN32
+# define O_BINARY 0
+#endif
+
+
+#ifdef HAVE_FORMAT_DABPLUS
+# ifdef HAVE_INPUT_FILE
+
+
+struct dabInputOperations dabInputDabplusFileOperations = {
+ dabInputDabplusFileInit,
+ dabInputDabplusFileOpen,
+ dabInputSetbuf,
+ dabInputDabplusFileRead,
+ NULL,
+ NULL,
+ dabInputDabplusFileReadFrame,
+ dabInputSetbitrate,
+ dabInputDabplusFileClose,
+ dabInputDabplusFileClean,
+ dabInputDabplusFileRewind
+};
+
+
+int dabInputDabplusFileInit(void** args)
+{
+ dabInputDabplusFileData* data = new dabInputDabplusFileData;
+ data->file = -1;
+ data->buffer = NULL;
+ data->bufferSize = 0;
+ data->bufferIndex = 0;
+
+ *args = data;
+ return 0;
+}
+
+
+int dabInputDabplusFileOpen(void* args, const char* filename)
+{
+ dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
+ data->file = open(filename, O_RDONLY | O_BINARY);
+ if (data->file == -1) {
+ perror(filename);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int dabInputDabplusFileRead(void* args, void* buffer, int size)
+{
+ dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
+ if (data->bufferSize != size * 5) {
+ if (data->buffer == NULL) {
+ delete[] data->buffer;
+ }
+ data->buffer = new uint8_t[size * 5];
+ data->bufferSize = size * 5;
+ data->bufferIndex = 0;
+ }
+
+ if (data->bufferIndex + size > data->bufferSize) {
+ int ret = read(data->file, data->buffer, data->bufferSize);
+ if (ret != data->bufferSize) {
+ if (ret != 0) {
+ etiLog.print(TcpLog::CRIT, "ERROR: Incomplete DAB+ frame!\n");
+ }
+ return 0;
+ }
+ data->bufferIndex = 0;
+ }
+
+ memcpy(buffer, &data->buffer[data->bufferIndex], size);
+ data->bufferIndex += size;
+
+ return size;
+}
+
+
+int dabInputDabplusFileReadFrame(dabInputOperations* ops, void* args,
+ void* buffer, int size)
+{
+ //dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
+ int result;
+ uint8_t* dataOut = reinterpret_cast<uint8_t*>(buffer);
+
+ result = ops->read(args, dataOut, size);
+ if (result == -1) {
+ etiLog.print(TcpLog::CRIT, "ERROR: Can't read file\n");
+ perror("");
+ return -1;
+ }
+ if (result < size) {
+ int sizeOut = result;
+ etiLog.print(TcpLog::NOTICE, "reach end of file -> rewinding\n");
+ if (ops->rewind(args) == -1) {
+ etiLog.print(TcpLog::CRIT, "ERROR: Can't rewind file\n");
+ return -1;
+ }
+
+ result = ops->read(args, dataOut + sizeOut, size - sizeOut);
+ if (result == -1) {
+ etiLog.print(TcpLog::CRIT, "ERROR: Can't read file\n");
+ perror("");
+ return -1;
+ }
+
+ if (result < size) {
+ etiLog.print(TcpLog::CRIT, "ERROR: Not enought data in file\n");
+ return -1;
+ }
+ }
+
+ return size;
+}
+
+
+int dabInputDabplusFileClose(void* args)
+{
+ dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
+ if (data->file != -1) {
+ close(data->file);
+ }
+ return 0;
+}
+
+
+int dabInputDabplusFileClean(void** args)
+{
+ dabInputDabplusFileData* data = (dabInputDabplusFileData*)*args;
+ if (data->buffer != NULL) {
+ delete[] data->buffer;
+ }
+ delete data;
+ return 0;
+}
+
+
+int dabInputDabplusFileRewind(void* args)
+{
+ dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
+ return lseek(data->file, 0, SEEK_SET);
+}
+
+
+# endif
+#endif