Update to GCC 14.1.0

CMakeLists.txt

@@ -711,6 +711,7 @@ add_executable(
 	src/readlines.c
 	src/terminal.c
 	src/ffmpeg_muxer.c
+	src/ffmpegc_muxer.c
 	src/sslcerts.c
 	src/showformats.c
 	src/callbacks.c

src/ffmpegc_muxer.c

@@ -0,0 +1,122 @@
+#include <stdlib.h>
+
+#include "os.h"
+#include "m3u8errors.h"
+#include "ffmpegc_muxer.h"
+
+static const char* const FFMPEG_DEFAULT_INPUT_FLAGS[] = {
+	"-y", "-nostdin", "-nostats", "-loglevel", "error"
+};
+
+static const char* const FFMPEG_DEFAULT_OUTPUT_FLAGS[] = {
+	"-map", "a",
+	"-c", "copy",
+	"-movflags", "+faststart",
+	"-max_interleave_delta", "0",
+	"-fflags", "+bitexact+autobsf"
+};
+
+int ffmpegc_mux_streams(char* const* const sources, const char* const destination) {
+
+	int err = M3U8ERR_SUCCESS;
+
+	char* executable = NULL;
+	char* command = NULL;
+	char**argv = NULL;
+
+	size_t index = 0;
+	size_t argvpos = 0;
+	size_t size = 0;
+	size_t argc = 0;
+
+	argc += sizeof(FFMPEG_DEFAULT_INPUT_FLAGS) / sizeof(*FFMPEG_DEFAULT_INPUT_FLAGS);
+	argc += sizeof(FFMPEG_DEFAULT_OUTPUT_FLAGS) / sizeof(*FFMPEG_DEFAULT_OUTPUT_FLAGS);
+
+	for (index = 0; 1; index++) {
+		const char* const item = sources[index];
+
+		if (item == NULL) {
+			break;
+		}
+	}
+
+	argc += 1; /* <command> */
+	argc += index * 2; /* -i <input> */
+	argc += 1; /* <output> */
+
+	executable = find_exe("ffmpeg");
+
+	if (executable == NULL) {
+		err = M3U8ERR_FFMPEG_COMMAND_NOT_FOUND;
+		goto end;
+	}
+
+	argv = malloc(sizeof(*argv) * argc);
+
+	if (argv == NULL) {
+		err = M3U8ERR_MEMORY_ALLOCATE_FAILURE;
+		goto end;
+	}
+
+	argv[argvpos++] = executable;
+
+	for (index = 0; index < sizeof(FFMPEG_DEFAULT_INPUT_FLAGS) / sizeof(*FFMPEG_DEFAULT_INPUT_FLAGS); index++) {
+		const char* const item = FFMPEG_DEFAULT_INPUT_FLAGS[index];
+		argv[argvpos++] = (char*) item;
+	}
+
+	for (index = 0; 1; index++) {
+		const char* const item = sources[index];
+
+		if (item == NULL) {
+			break;
+		}
+
+		argv[argvpos++] = "-i";
+		argv[argvpos++] = (char*) item;
+	}
+
+	for (index = 0; index < sizeof(FFMPEG_DEFAULT_OUTPUT_FLAGS) / sizeof(*FFMPEG_DEFAULT_OUTPUT_FLAGS); index++) {
+		const char* const item = FFMPEG_DEFAULT_OUTPUT_FLAGS[index];
+		argv[argvpos++] = (char*) item;
+	}
+
+	argv[argvpos++] = (char*) destination;
+
+	for (index = 0; index < argvpos; index++) {
+		const char* const arg = argv[index];
+		size += strlen(arg) + 1;
+	}
+
+	size += 1; /* \0 */
+
+	command = malloc(size);
+
+	if (command == NULL) {
+		err = M3U8ERR_MEMORY_ALLOCATE_FAILURE;
+		goto end;
+	}
+
+	command[0] = '\0';
+
+	for (index = 0; index < argvpos; index++) {
+		const char* const arg = argv[index];
+		strcat(command, arg);
+		strcat(command, " ");
+	}
+	puts(command);
+
+	if (execute_shell_command(command) != 0) {
+		err = M3U8ERR_FFMPEG_MUXING_FAILURE;
+		goto end;
+	}
+
+	end:;
+
+	free(executable);
+	free(argv);
+	free(command);
+
+	return err;
+
+}

src/ffmpegc_muxer.h

@@ -0,0 +1,6 @@
+#if !defined(FFMPEGC_MUXER_H)
+#define FFMPEGC_MUXER_H
+
+int ffmpegc_mux_streams(char* const* const sources, const char* const destination);
+
+#endif

src/m3u8.c

@@ -70,6 +70,7 @@ The longest M3U8 tag name is 'EXT-X-DISCONTINUITY-SEQUENCE', which contains
 #define M3U8_PLAYLIST_COMMENT 2
 #define M3U8_PLAYLIST_URI 3
 
+/* M3U8 tags. */
 static const char M3U8K_EXTM3U[] = "EXTM3U";
 static const char M3U8K_EXT_X_VERSION[] = "EXT-X-VERSION";
 static const char M3U8K_EXTINF[] = "EXTINF";
@@ -103,6 +104,7 @@ static const char M3U8K_EXT_X_SKIP[] = "EXT-X-SKIP";
 static const char M3U8K_EXT_X_PRELOAD_HINT[] = "EXT-X-PRELOAD-HINT";
 static const char M3U8K_EXT_X_RENDITION_REPORT[] = "EXT-X-RENDITION-REPORT";
 
+/* M3U8 attributes. */
 static const char M3U8K_METHOD[] = "METHOD";
 static const char M3U8K_URI[] = "URI";
 static const char M3U8K_IV[] = "IV";

src/m3u8errors.c

@@ -211,6 +211,8 @@ const char* m3u8err_getmessage(const int code) {
 			return "Could not create the temporary directory";
 		case M3U8ERR_DOWNLOAD_COULD_NOT_MOVE_FILE:
 			return "Could not move file to specified location";
+		case M3U8ERR_FFMPEG_COMMAND_NOT_FOUND:
+			return "Could locate the FFmpeg executable";
 		default:
 			return "Unknown error code";
 	}

src/m3u8errors.h

@@ -121,6 +121,8 @@
 #define M3U8ERR_TAG_NON_MATCHING_ATTRIBUTES -97 /* The attributes of this M3U8 tag do not match those of the other M3U8 tag with the same ID */
 #define M3U8ERR_TAG_TRAILING_OPTIONS -98 /* This M3U8 tag does not require any value to be supplied, but trailing options were found */
 
+#define M3U8ERR_FFMPEG_COMMAND_NOT_FOUND -99 /* Could locate the FFmpeg executable */
+
 const char* m3u8err_getmessage(const int code);
 
 #endif

src/main.c

@@ -4,6 +4,7 @@
 #include <errno.h>
 
 #include <curl/curl.h>
+#include <libavutil/error.h>
 
 #include "m3u8stream.h"
 #include "m3u8types.h"
@@ -19,6 +20,7 @@
 #include "os.h"
 #include "sutils.h"
 #include "ffmpeg_muxer.h"
+#include "ffmpegc_muxer.h"
 #include "terminal.h"
 #include "pathsep.h"
 #include "filesystem.h"
@@ -162,6 +164,7 @@ int main(int argc, argv_t* argv[]) {
 	int debug = 0;
 	int disable_autoselection = 0;
 	int disable_progress = 0;
+	int prefer_ffmpegc = 0;
 
 	int select_all_medias = 0;
 	int exists = 0;
@@ -604,6 +607,13 @@ int main(int argc, argv_t* argv[]) {
 			}
 
 			debug = 1;
+		} else if (strcmp(argument->key, "prefer-ffmpegc-muxer") == 0) {
+			if (prefer_ffmpegc) {
+				err = M3U8ERR_CLI_DUPLICATE_ARGUMENT;
+				goto end;
+			}
+
+			prefer_ffmpegc = 1;
 		} else if (strcmp(argument->key, "disable-autoselection") == 0) {
 			if (disable_autoselection) {
 				err = M3U8ERR_CLI_DUPLICATE_ARGUMENT;
@@ -992,11 +1002,20 @@ int main(int argc, argv_t* argv[]) {
 
 	printf("- Merging media streams into a single file at '%s'\n", temporary_file);
 
-	fferr = ffmpeg_mux_streams(downloaded_streams.items, temporary_file);
-
-	if (fferr < 0) {
-		err = M3U8ERR_FFMPEG_MUXING_FAILURE;
-		goto end;
+	if (prefer_ffmpegc) {
+		err = ffmpegc_mux_streams(downloaded_streams.items, temporary_file);
+
+		if (err != M3U8ERR_SUCCESS) {
+			fferr = AVERROR_INVALIDDATA;
+			goto end;
+		}
+	} else {
+		fferr = ffmpeg_mux_streams(downloaded_streams.items, temporary_file);
+
+		if (fferr < 0) {
+			err = M3U8ERR_FFMPEG_MUXING_FAILURE;
+			goto end;
+		}
 	}
 
 	fstream_close(output_stream);
@@ -1073,6 +1092,10 @@ int main(int argc, argv_t* argv[]) {
 
 	show_cursor();
 
-	return (err == M3U8ERR_SUCCESS) ? EXIT_SUCCESS : EXIT_FAILURE;
+	if (err != M3U8ERR_SUCCESS) {
+		return EXIT_FAILURE;
+	}
+
+	return EXIT_SUCCESS;
 
 }

src/os.c

@@ -80,6 +80,50 @@ static const char* strip_trailing_separator(char* const s) {
 
 }
 
+int execute_shell_command(const char* const command) {
+	/*
+	Executes a shell command.
+	
+	Returns the exit code for the command, which is (0) on success.
+	*/
+
+	int code = 0;
+
+	#if defined(_WIN32) && defined(_UNICODE)
+		wchar_t* wcommand = NULL;
+
+		const int wcommands = MultiByteToWideChar(CP_UTF8, 0, command, -1, NULL, 0);
+
+		if (wcommands == 0) {
+			return -1;
+		}
+
+		wcommand = malloc((size_t) wcommands);
+
+		if (wcommand == NULL) {
+			return -1;
+		}
+
+		if (MultiByteToWideChar(CP_UTF8, 0, command, -1, wcommand, wcommands) == 0) {
+			free(wcommand);
+			return -1;
+		}
+
+		code = _wsystem(wcommand);
+
+		free(wcommand);
+	#else
+		code = system(command);
+	#endif
+
+	#if defined(_WIN32)
+		code = WIFSIGNALED(code) ? 128 + WTERMSIG(code) : WEXITSTATUS(code);
+	#endif
+
+	return code;
+
+}
+
 #if !defined(__HAIKU__)
 	int is_administrator(void) {
 		/*

src/os.h

@@ -5,6 +5,7 @@
 	int is_administrator(void);
 #endif
 
+int execute_shell_command(const char* const command);
 char* get_configuration_directory(void);
 char* get_temporary_directory(void);
 char* get_home_directory(void);

src/program_help.h

@@ -6,7 +6,7 @@ This file is auto-generated. Use the ../tools/program_help.h.py tool to regenera
 #define PROGRAM_HELP_H
 
 #define PROGRAM_HELP \
-	"usage: kai [-h] [-v] -u URL [-k] [-A USER_AGENT] [-x URI] [--doh-url URL] [-e URL] [-r COUNT] [--debug] [-S] [--select-media MEDIA] [--select-stream VARIANT_STREAM] [--disable-autoselection] [--disable-progress-meter] [-c CONCURRENCY] -o FILENAME\n" \
+	"usage: kai [-h] [-v] -u URL [-k] [-A USER_AGENT] [-x URI] [--doh-url URL] [-e URL] [-r COUNT] [--debug] [-S] [--select-media MEDIA] [--select-stream VARIANT_STREAM] [--disable-autoselection] [--disable-progress-meter] [--prefer-ffmpegc-muxer] [-c CONCURRENCY] -o FILENAME\n" \
 	"\n" \
 	"A command-line utility to download contents from M3U8 playlists.\n" \
 	"\n" \
@@ -32,6 +32,8 @@ This file is auto-generated. Use the ../tools/program_help.h.py tool to regenera
 	"                        Avoid autoselection of streams based on predefined preferences set by the master playlist.\n" \
 	"  --disable-progress-meter\n" \
 	"                        Disable showing download progress meter.\n" \
+	"  --prefer-ffmpegc-muxer\n" \
+	"                        Prefer using the FFmpeg CLI tool instead of the builtin implementation when muxing media streams.\n" \
 	"  -c CONCURRENCY, --concurrency CONCURRENCY\n" \
 	"                        Specify how many media segments should be downloaded simultaneously. Defaults to 1.\n" \
 	"  -o FILENAME, --output FILENAME\n" \

tools/program_help.h.py

@@ -123,6 +123,13 @@
 	help = "Disable showing download progress meter."
 )
 
+parser.add_argument(
+	"--prefer-ffmpegc-muxer",
+	required = False,
+	action = "store_true",
+	help = "Prefer using the FFmpeg CLI tool instead of the builtin implementation when muxing media streams."
+)
+
 parser.add_argument(
 	"-c",
 	"--concurrency",