126 lines
3.8 KiB
C
126 lines
3.8 KiB
C
/*
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* Copyright (C) 2016 Glyptodon, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h"
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#include "display.h"
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#include "instructions.h"
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#include "log.h"
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#include <guacamole/client.h>
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#include <guacamole/error.h>
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#include <guacamole/parser.h>
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#include <guacamole/socket.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <string.h>
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#include <unistd.h>
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/**
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* Reads and handles all Guacamole instructions from the given guac_socket
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* until end-of-stream is reached.
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*
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* @param display
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* The current internal display of the Guacamole video encoder.
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*
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* @param path
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* The name of the file being parsed (for logging purposes). This file
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* must already be open and available through the given socket.
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*
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* @param socket
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* The guac_socket through which instructions should be read.
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*
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* @return
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* Zero on success, non-zero if parsing of Guacamole protocol data through
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* the given socket fails.
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*/
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static int guacenc_read_instructions(guacenc_display* display,
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const char* path, guac_socket* socket) {
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/* Obtain Guacamole protocol parser */
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guac_parser* parser = guac_parser_alloc();
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if (parser == NULL)
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return 1;
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/* Continuously read and handle all instructions */
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while (!guac_parser_read(parser, socket, -1)) {
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guacenc_handle_instruction(display, parser->opcode,
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parser->argc, parser->argv);
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}
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/* Fail on read/parse error */
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if (guac_error != GUAC_STATUS_CLOSED) {
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guacenc_log(GUAC_LOG_ERROR, "%s: %s",
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path, guac_status_string(guac_error));
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guac_parser_free(parser);
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return 1;
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}
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/* Parse complete */
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guac_parser_free(parser);
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return 0;
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}
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int guacenc_encode(const char* path) {
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/* Allocate display for encoding process */
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guacenc_display* display = guacenc_display_alloc();
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if (display == NULL)
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return 1;
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/* Open input file */
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int fd = open(path, O_RDONLY);
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if (fd < 0) {
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guacenc_log(GUAC_LOG_ERROR, "%s: %s", path, strerror(errno));
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guacenc_display_free(display);
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return 1;
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}
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/* Obtain guac_socket wrapping file descriptor */
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guac_socket* socket = guac_socket_open(fd);
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if (socket == NULL) {
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guacenc_log(GUAC_LOG_ERROR, "%s: %s", path,
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guac_status_string(guac_error));
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close(fd);
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guacenc_display_free(display);
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return 1;
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}
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guacenc_log(GUAC_LOG_INFO, "Encoding \"%s\" ...", path);
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/* Attempt to read all instructions in the file */
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if (guacenc_read_instructions(display, path, socket)) {
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guac_socket_free(socket);
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guacenc_display_free(display);
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return 1;
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}
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/* Close input and finish encoding process */
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guac_socket_free(socket);
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return guacenc_display_free(display);
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}
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