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f825d42bcc
Quite useful for debugging. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
1645 lines
53 KiB
C
1645 lines
53 KiB
C
/*
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* Various utilities for command line tools
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* Copyright (c) 2000-2003 Fabrice Bellard
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <math.h>
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/* Include only the enabled headers since some compilers (namely, Sun
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Studio) will not omit unused inline functions and create undefined
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references to libraries that are not being built. */
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#include "config.h"
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#include "libavformat/avformat.h"
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#include "libavfilter/avfilter.h"
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#include "libavdevice/avdevice.h"
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#include "libavresample/avresample.h"
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#include "libswscale/swscale.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/eval.h"
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#include "libavutil/dict.h"
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#include "libavutil/opt.h"
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#include "libavutil/cpu.h"
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#include "cmdutils.h"
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#include "version.h"
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#if CONFIG_NETWORK
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#include "libavformat/network.h"
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#endif
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#if HAVE_SYS_RESOURCE_H
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#include <sys/time.h>
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#include <sys/resource.h>
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#endif
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struct SwsContext *sws_opts;
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AVDictionary *format_opts, *codec_opts, *resample_opts;
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static const int this_year = 2013;
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void init_opts(void)
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{
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#if CONFIG_SWSCALE
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sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
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NULL, NULL, NULL);
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#endif
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}
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void uninit_opts(void)
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{
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#if CONFIG_SWSCALE
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sws_freeContext(sws_opts);
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sws_opts = NULL;
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#endif
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av_dict_free(&format_opts);
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av_dict_free(&codec_opts);
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av_dict_free(&resample_opts);
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}
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void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
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{
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vfprintf(stdout, fmt, vl);
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}
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static void (*program_exit)(int ret);
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void register_exit(void (*cb)(int ret))
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{
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program_exit = cb;
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}
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void exit_program(int ret)
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{
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if (program_exit)
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program_exit(ret);
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exit(ret);
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}
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double parse_number_or_die(const char *context, const char *numstr, int type,
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double min, double max)
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{
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char *tail;
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const char *error;
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double d = av_strtod(numstr, &tail);
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if (*tail)
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error = "Expected number for %s but found: %s\n";
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else if (d < min || d > max)
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error = "The value for %s was %s which is not within %f - %f\n";
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else if (type == OPT_INT64 && (int64_t)d != d)
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error = "Expected int64 for %s but found %s\n";
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else if (type == OPT_INT && (int)d != d)
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error = "Expected int for %s but found %s\n";
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else
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return d;
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av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
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exit_program(1);
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return 0;
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}
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int64_t parse_time_or_die(const char *context, const char *timestr,
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int is_duration)
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{
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int64_t us;
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if (av_parse_time(&us, timestr, is_duration) < 0) {
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av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
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is_duration ? "duration" : "date", context, timestr);
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exit_program(1);
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}
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return us;
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}
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void show_help_options(const OptionDef *options, const char *msg, int req_flags,
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int rej_flags, int alt_flags)
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{
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const OptionDef *po;
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int first;
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first = 1;
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for (po = options; po->name != NULL; po++) {
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char buf[64];
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if (((po->flags & req_flags) != req_flags) ||
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(alt_flags && !(po->flags & alt_flags)) ||
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(po->flags & rej_flags))
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continue;
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if (first) {
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printf("%s\n", msg);
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first = 0;
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}
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av_strlcpy(buf, po->name, sizeof(buf));
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if (po->argname) {
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av_strlcat(buf, " ", sizeof(buf));
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av_strlcat(buf, po->argname, sizeof(buf));
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}
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printf("-%-17s %s\n", buf, po->help);
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}
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printf("\n");
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}
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void show_help_children(const AVClass *class, int flags)
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{
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const AVClass *child = NULL;
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av_opt_show2(&class, NULL, flags, 0);
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printf("\n");
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while (child = av_opt_child_class_next(class, child))
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show_help_children(child, flags);
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}
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static const OptionDef *find_option(const OptionDef *po, const char *name)
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{
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const char *p = strchr(name, ':');
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int len = p ? p - name : strlen(name);
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while (po->name != NULL) {
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if (!strncmp(name, po->name, len) && strlen(po->name) == len)
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break;
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po++;
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}
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return po;
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}
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/* _WIN32 means using the windows libc - cygwin doesn't define that
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* by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
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* it doesn't provide the actual command line via GetCommandLineW(). */
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#if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
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#include <windows.h>
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#include <shellapi.h>
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/* Will be leaked on exit */
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static char** win32_argv_utf8 = NULL;
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static int win32_argc = 0;
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/**
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* Prepare command line arguments for executable.
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* For Windows - perform wide-char to UTF-8 conversion.
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* Input arguments should be main() function arguments.
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* @param argc_ptr Arguments number (including executable)
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* @param argv_ptr Arguments list.
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*/
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static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
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{
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char *argstr_flat;
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wchar_t **argv_w;
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int i, buffsize = 0, offset = 0;
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if (win32_argv_utf8) {
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*argc_ptr = win32_argc;
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*argv_ptr = win32_argv_utf8;
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return;
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}
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win32_argc = 0;
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argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
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if (win32_argc <= 0 || !argv_w)
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return;
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/* determine the UTF-8 buffer size (including NULL-termination symbols) */
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for (i = 0; i < win32_argc; i++)
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buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
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NULL, 0, NULL, NULL);
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win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
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argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
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if (win32_argv_utf8 == NULL) {
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LocalFree(argv_w);
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return;
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}
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for (i = 0; i < win32_argc; i++) {
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win32_argv_utf8[i] = &argstr_flat[offset];
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offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
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&argstr_flat[offset],
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buffsize - offset, NULL, NULL);
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}
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win32_argv_utf8[i] = NULL;
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LocalFree(argv_w);
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*argc_ptr = win32_argc;
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*argv_ptr = win32_argv_utf8;
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}
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#else
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static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
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{
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/* nothing to do */
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}
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#endif /* HAVE_COMMANDLINETOARGVW */
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static int write_option(void *optctx, const OptionDef *po, const char *opt,
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const char *arg)
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{
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/* new-style options contain an offset into optctx, old-style address of
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* a global var*/
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void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
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(uint8_t *)optctx + po->u.off : po->u.dst_ptr;
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int *dstcount;
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if (po->flags & OPT_SPEC) {
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SpecifierOpt **so = dst;
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char *p = strchr(opt, ':');
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dstcount = (int *)(so + 1);
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*so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
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(*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
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dst = &(*so)[*dstcount - 1].u;
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}
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if (po->flags & OPT_STRING) {
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char *str;
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str = av_strdup(arg);
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av_freep(dst);
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*(char **)dst = str;
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} else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
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*(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
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} else if (po->flags & OPT_INT64) {
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*(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
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} else if (po->flags & OPT_TIME) {
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*(int64_t *)dst = parse_time_or_die(opt, arg, 1);
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} else if (po->flags & OPT_FLOAT) {
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*(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
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} else if (po->flags & OPT_DOUBLE) {
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*(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
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} else if (po->u.func_arg) {
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int ret = po->u.func_arg(optctx, opt, arg);
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if (ret < 0) {
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av_log(NULL, AV_LOG_ERROR,
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"Failed to set value '%s' for option '%s'\n", arg, opt);
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return ret;
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}
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}
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if (po->flags & OPT_EXIT)
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exit_program(0);
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return 0;
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}
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int parse_option(void *optctx, const char *opt, const char *arg,
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const OptionDef *options)
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{
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const OptionDef *po;
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int ret;
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po = find_option(options, opt);
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if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
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/* handle 'no' bool option */
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po = find_option(options, opt + 2);
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if ((po->name && (po->flags & OPT_BOOL)))
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arg = "0";
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} else if (po->flags & OPT_BOOL)
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arg = "1";
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if (!po->name)
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po = find_option(options, "default");
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if (!po->name) {
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av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
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return AVERROR(EINVAL);
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}
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if (po->flags & HAS_ARG && !arg) {
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av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
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return AVERROR(EINVAL);
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}
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ret = write_option(optctx, po, opt, arg);
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if (ret < 0)
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return ret;
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return !!(po->flags & HAS_ARG);
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}
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void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
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void (*parse_arg_function)(void *, const char*))
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{
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const char *opt;
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int optindex, handleoptions = 1, ret;
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/* perform system-dependent conversions for arguments list */
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prepare_app_arguments(&argc, &argv);
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/* parse options */
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optindex = 1;
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while (optindex < argc) {
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opt = argv[optindex++];
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if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
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if (opt[1] == '-' && opt[2] == '\0') {
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handleoptions = 0;
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continue;
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}
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opt++;
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if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
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exit_program(1);
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optindex += ret;
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} else {
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if (parse_arg_function)
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parse_arg_function(optctx, opt);
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}
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}
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}
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int parse_optgroup(void *optctx, OptionGroup *g)
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{
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int i, ret;
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av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
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g->group_def->name, g->arg);
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for (i = 0; i < g->nb_opts; i++) {
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Option *o = &g->opts[i];
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if (g->group_def->flags &&
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!(g->group_def->flags & o->opt->flags)) {
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av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
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"%s %s -- you are trying to apply an input option to an "
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"output file or vice versa. Move this option before the "
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"file it belongs to.\n", o->key, o->opt->help,
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g->group_def->name, g->arg);
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return AVERROR(EINVAL);
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}
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av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
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o->key, o->opt->help, o->val);
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ret = write_option(optctx, o->opt, o->key, o->val);
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if (ret < 0)
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return ret;
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}
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av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
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return 0;
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}
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int locate_option(int argc, char **argv, const OptionDef *options,
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const char *optname)
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{
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const OptionDef *po;
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int i;
|
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for (i = 1; i < argc; i++) {
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const char *cur_opt = argv[i];
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if (*cur_opt++ != '-')
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continue;
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po = find_option(options, cur_opt);
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if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
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po = find_option(options, cur_opt + 2);
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|
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if ((!po->name && !strcmp(cur_opt, optname)) ||
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(po->name && !strcmp(optname, po->name)))
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return i;
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|
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if (!po || po->flags & HAS_ARG)
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i++;
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}
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return 0;
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}
|
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|
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void parse_loglevel(int argc, char **argv, const OptionDef *options)
|
|
{
|
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int idx = locate_option(argc, argv, options, "loglevel");
|
|
if (!idx)
|
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idx = locate_option(argc, argv, options, "v");
|
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if (idx && argv[idx + 1])
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opt_loglevel(NULL, "loglevel", argv[idx + 1]);
|
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}
|
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|
|
#define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
|
|
int opt_default(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
const AVOption *o;
|
|
char opt_stripped[128];
|
|
const char *p;
|
|
const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
|
|
#if CONFIG_AVRESAMPLE
|
|
const AVClass *rc = avresample_get_class();
|
|
#endif
|
|
#if CONFIG_SWSCALE
|
|
const AVClass *sc = sws_get_class();
|
|
#endif
|
|
|
|
if (!(p = strchr(opt, ':')))
|
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p = opt + strlen(opt);
|
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av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
|
|
|
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if ((o = av_opt_find(&cc, opt_stripped, NULL, 0,
|
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
|
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((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
|
|
(o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ))))
|
|
av_dict_set(&codec_opts, opt, arg, FLAGS);
|
|
else if ((o = av_opt_find(&fc, opt, NULL, 0,
|
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
|
|
av_dict_set(&format_opts, opt, arg, FLAGS);
|
|
#if CONFIG_AVRESAMPLE
|
|
else if ((o = av_opt_find(&rc, opt, NULL, 0,
|
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AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
|
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av_dict_set(&resample_opts, opt, arg, FLAGS);
|
|
#endif
|
|
#if CONFIG_SWSCALE
|
|
else if ((o = av_opt_find(&sc, opt, NULL, 0,
|
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AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
|
|
// XXX we only support sws_flags, not arbitrary sws options
|
|
int ret = av_opt_set(sws_opts, opt, arg, 0);
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
|
|
return ret;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (o)
|
|
return 0;
|
|
return AVERROR_OPTION_NOT_FOUND;
|
|
}
|
|
|
|
/*
|
|
* Check whether given option is a group separator.
|
|
*
|
|
* @return index of the group definition that matched or -1 if none
|
|
*/
|
|
static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
|
|
const char *opt)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nb_groups; i++) {
|
|
const OptionGroupDef *p = &groups[i];
|
|
if (p->sep && !strcmp(p->sep, opt))
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Finish parsing an option group.
|
|
*
|
|
* @param group_idx which group definition should this group belong to
|
|
* @param arg argument of the group delimiting option
|
|
*/
|
|
static void finish_group(OptionParseContext *octx, int group_idx,
|
|
const char *arg)
|
|
{
|
|
OptionGroupList *l = &octx->groups[group_idx];
|
|
OptionGroup *g;
|
|
|
|
GROW_ARRAY(l->groups, l->nb_groups);
|
|
g = &l->groups[l->nb_groups - 1];
|
|
|
|
*g = octx->cur_group;
|
|
g->arg = arg;
|
|
g->group_def = l->group_def;
|
|
#if CONFIG_SWSCALE
|
|
g->sws_opts = sws_opts;
|
|
#endif
|
|
g->codec_opts = codec_opts;
|
|
g->format_opts = format_opts;
|
|
g->resample_opts = resample_opts;
|
|
|
|
codec_opts = NULL;
|
|
format_opts = NULL;
|
|
resample_opts = NULL;
|
|
#if CONFIG_SWSCALE
|
|
sws_opts = NULL;
|
|
#endif
|
|
init_opts();
|
|
|
|
memset(&octx->cur_group, 0, sizeof(octx->cur_group));
|
|
}
|
|
|
|
/*
|
|
* Add an option instance to currently parsed group.
|
|
*/
|
|
static void add_opt(OptionParseContext *octx, const OptionDef *opt,
|
|
const char *key, const char *val)
|
|
{
|
|
int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
|
|
OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
|
|
|
|
GROW_ARRAY(g->opts, g->nb_opts);
|
|
g->opts[g->nb_opts - 1].opt = opt;
|
|
g->opts[g->nb_opts - 1].key = key;
|
|
g->opts[g->nb_opts - 1].val = val;
|
|
}
|
|
|
|
static void init_parse_context(OptionParseContext *octx,
|
|
const OptionGroupDef *groups, int nb_groups)
|
|
{
|
|
static const OptionGroupDef global_group = { "global" };
|
|
int i;
|
|
|
|
memset(octx, 0, sizeof(*octx));
|
|
|
|
octx->nb_groups = nb_groups;
|
|
octx->groups = av_mallocz(sizeof(*octx->groups) * octx->nb_groups);
|
|
if (!octx->groups)
|
|
exit_program(1);
|
|
|
|
for (i = 0; i < octx->nb_groups; i++)
|
|
octx->groups[i].group_def = &groups[i];
|
|
|
|
octx->global_opts.group_def = &global_group;
|
|
octx->global_opts.arg = "";
|
|
|
|
init_opts();
|
|
}
|
|
|
|
void uninit_parse_context(OptionParseContext *octx)
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < octx->nb_groups; i++) {
|
|
OptionGroupList *l = &octx->groups[i];
|
|
|
|
for (j = 0; j < l->nb_groups; j++) {
|
|
av_freep(&l->groups[j].opts);
|
|
av_dict_free(&l->groups[j].codec_opts);
|
|
av_dict_free(&l->groups[j].format_opts);
|
|
av_dict_free(&l->groups[j].resample_opts);
|
|
#if CONFIG_SWSCALE
|
|
sws_freeContext(l->groups[j].sws_opts);
|
|
#endif
|
|
}
|
|
av_freep(&l->groups);
|
|
}
|
|
av_freep(&octx->groups);
|
|
|
|
av_freep(&octx->cur_group.opts);
|
|
av_freep(&octx->global_opts.opts);
|
|
|
|
uninit_opts();
|
|
}
|
|
|
|
int split_commandline(OptionParseContext *octx, int argc, char *argv[],
|
|
const OptionDef *options,
|
|
const OptionGroupDef *groups, int nb_groups)
|
|
{
|
|
int optindex = 1;
|
|
|
|
/* perform system-dependent conversions for arguments list */
|
|
prepare_app_arguments(&argc, &argv);
|
|
|
|
init_parse_context(octx, groups, nb_groups);
|
|
av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
|
|
|
|
while (optindex < argc) {
|
|
const char *opt = argv[optindex++], *arg;
|
|
const OptionDef *po;
|
|
int ret;
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
|
|
|
|
/* unnamed group separators, e.g. output filename */
|
|
if (opt[0] != '-' || !opt[1]) {
|
|
finish_group(octx, 0, opt);
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
|
|
continue;
|
|
}
|
|
opt++;
|
|
|
|
#define GET_ARG(arg) \
|
|
do { \
|
|
arg = argv[optindex++]; \
|
|
if (!arg) { \
|
|
av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
|
|
return AVERROR(EINVAL); \
|
|
} \
|
|
} while (0)
|
|
|
|
/* named group separators, e.g. -i */
|
|
if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
|
|
GET_ARG(arg);
|
|
finish_group(octx, ret, arg);
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
|
|
groups[ret].name, arg);
|
|
continue;
|
|
}
|
|
|
|
/* normal options */
|
|
po = find_option(options, opt);
|
|
if (po->name) {
|
|
if (po->flags & OPT_EXIT) {
|
|
/* optional argument, e.g. -h */
|
|
arg = argv[optindex++];
|
|
} else if (po->flags & HAS_ARG) {
|
|
GET_ARG(arg);
|
|
} else {
|
|
arg = "1";
|
|
}
|
|
|
|
add_opt(octx, po, opt, arg);
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
|
|
"argument '%s'.\n", po->name, po->help, arg);
|
|
continue;
|
|
}
|
|
|
|
/* AVOptions */
|
|
if (argv[optindex]) {
|
|
ret = opt_default(NULL, opt, argv[optindex]);
|
|
if (ret >= 0) {
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
|
|
"argument '%s'.\n", opt, argv[optindex]);
|
|
optindex++;
|
|
continue;
|
|
} else if (ret != AVERROR_OPTION_NOT_FOUND) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
|
|
"with argument '%s'.\n", opt, argv[optindex]);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* boolean -nofoo options */
|
|
if (opt[0] == 'n' && opt[1] == 'o' &&
|
|
(po = find_option(options, opt + 2)) &&
|
|
po->name && po->flags & OPT_BOOL) {
|
|
add_opt(octx, po, opt, "0");
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
|
|
"argument 0.\n", po->name, po->help);
|
|
continue;
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
|
|
return AVERROR_OPTION_NOT_FOUND;
|
|
}
|
|
|
|
if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
|
|
av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
|
|
"commandline.\n");
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int opt_cpuflags(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
int flags = av_parse_cpu_flags(arg);
|
|
|
|
if (flags < 0)
|
|
return flags;
|
|
|
|
av_set_cpu_flags_mask(flags);
|
|
return 0;
|
|
}
|
|
|
|
int opt_loglevel(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
const struct { const char *name; int level; } log_levels[] = {
|
|
{ "quiet" , AV_LOG_QUIET },
|
|
{ "panic" , AV_LOG_PANIC },
|
|
{ "fatal" , AV_LOG_FATAL },
|
|
{ "error" , AV_LOG_ERROR },
|
|
{ "warning", AV_LOG_WARNING },
|
|
{ "info" , AV_LOG_INFO },
|
|
{ "verbose", AV_LOG_VERBOSE },
|
|
{ "debug" , AV_LOG_DEBUG },
|
|
};
|
|
char *tail;
|
|
int level;
|
|
int i;
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
|
|
if (!strcmp(log_levels[i].name, arg)) {
|
|
av_log_set_level(log_levels[i].level);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
level = strtol(arg, &tail, 10);
|
|
if (*tail) {
|
|
av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
|
|
"Possible levels are numbers or:\n", arg);
|
|
for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
|
|
av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
|
|
exit_program(1);
|
|
}
|
|
av_log_set_level(level);
|
|
return 0;
|
|
}
|
|
|
|
int opt_timelimit(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
#if HAVE_SETRLIMIT
|
|
int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
|
|
struct rlimit rl = { lim, lim + 1 };
|
|
if (setrlimit(RLIMIT_CPU, &rl))
|
|
perror("setrlimit");
|
|
#else
|
|
av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
void print_error(const char *filename, int err)
|
|
{
|
|
char errbuf[128];
|
|
const char *errbuf_ptr = errbuf;
|
|
|
|
if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
|
|
errbuf_ptr = strerror(AVUNERROR(err));
|
|
av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
|
|
}
|
|
|
|
static int warned_cfg = 0;
|
|
|
|
#define INDENT 1
|
|
#define SHOW_VERSION 2
|
|
#define SHOW_CONFIG 4
|
|
|
|
#define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
|
|
if (CONFIG_##LIBNAME) { \
|
|
const char *indent = flags & INDENT? " " : ""; \
|
|
if (flags & SHOW_VERSION) { \
|
|
unsigned int version = libname##_version(); \
|
|
av_log(NULL, level, \
|
|
"%slib%-10s %2d.%3d.%2d / %2d.%3d.%2d\n", \
|
|
indent, #libname, \
|
|
LIB##LIBNAME##_VERSION_MAJOR, \
|
|
LIB##LIBNAME##_VERSION_MINOR, \
|
|
LIB##LIBNAME##_VERSION_MICRO, \
|
|
version >> 16, version >> 8 & 0xff, version & 0xff); \
|
|
} \
|
|
if (flags & SHOW_CONFIG) { \
|
|
const char *cfg = libname##_configuration(); \
|
|
if (strcmp(LIBAV_CONFIGURATION, cfg)) { \
|
|
if (!warned_cfg) { \
|
|
av_log(NULL, level, \
|
|
"%sWARNING: library configuration mismatch\n", \
|
|
indent); \
|
|
warned_cfg = 1; \
|
|
} \
|
|
av_log(NULL, level, "%s%-11s configuration: %s\n", \
|
|
indent, #libname, cfg); \
|
|
} \
|
|
} \
|
|
} \
|
|
|
|
static void print_all_libs_info(int flags, int level)
|
|
{
|
|
PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
|
|
PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
|
|
PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
|
|
PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
|
|
PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
|
|
PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
|
|
PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
|
|
}
|
|
|
|
void show_banner(void)
|
|
{
|
|
av_log(NULL, AV_LOG_INFO,
|
|
"%s version " LIBAV_VERSION ", Copyright (c) %d-%d the Libav developers\n",
|
|
program_name, program_birth_year, this_year);
|
|
av_log(NULL, AV_LOG_INFO, " built on %s %s with %s\n",
|
|
__DATE__, __TIME__, CC_IDENT);
|
|
av_log(NULL, AV_LOG_VERBOSE, " configuration: " LIBAV_CONFIGURATION "\n");
|
|
print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_VERBOSE);
|
|
print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_VERBOSE);
|
|
}
|
|
|
|
int show_version(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
av_log_set_callback(log_callback_help);
|
|
printf("%s " LIBAV_VERSION "\n", program_name);
|
|
print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int show_license(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
printf(
|
|
#if CONFIG_NONFREE
|
|
"This version of %s has nonfree parts compiled in.\n"
|
|
"Therefore it is not legally redistributable.\n",
|
|
program_name
|
|
#elif CONFIG_GPLV3
|
|
"%s is free software; you can redistribute it and/or modify\n"
|
|
"it under the terms of the GNU General Public License as published by\n"
|
|
"the Free Software Foundation; either version 3 of the License, or\n"
|
|
"(at your option) any later version.\n"
|
|
"\n"
|
|
"%s is distributed in the hope that it will be useful,\n"
|
|
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
|
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
|
|
"GNU General Public License for more details.\n"
|
|
"\n"
|
|
"You should have received a copy of the GNU General Public License\n"
|
|
"along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
|
|
program_name, program_name, program_name
|
|
#elif CONFIG_GPL
|
|
"%s is free software; you can redistribute it and/or modify\n"
|
|
"it under the terms of the GNU General Public License as published by\n"
|
|
"the Free Software Foundation; either version 2 of the License, or\n"
|
|
"(at your option) any later version.\n"
|
|
"\n"
|
|
"%s is distributed in the hope that it will be useful,\n"
|
|
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
|
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
|
|
"GNU General Public License for more details.\n"
|
|
"\n"
|
|
"You should have received a copy of the GNU General Public License\n"
|
|
"along with %s; if not, write to the Free Software\n"
|
|
"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
|
|
program_name, program_name, program_name
|
|
#elif CONFIG_LGPLV3
|
|
"%s is free software; you can redistribute it and/or modify\n"
|
|
"it under the terms of the GNU Lesser General Public License as published by\n"
|
|
"the Free Software Foundation; either version 3 of the License, or\n"
|
|
"(at your option) any later version.\n"
|
|
"\n"
|
|
"%s is distributed in the hope that it will be useful,\n"
|
|
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
|
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
|
|
"GNU Lesser General Public License for more details.\n"
|
|
"\n"
|
|
"You should have received a copy of the GNU Lesser General Public License\n"
|
|
"along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
|
|
program_name, program_name, program_name
|
|
#else
|
|
"%s is free software; you can redistribute it and/or\n"
|
|
"modify it under the terms of the GNU Lesser General Public\n"
|
|
"License as published by the Free Software Foundation; either\n"
|
|
"version 2.1 of the License, or (at your option) any later version.\n"
|
|
"\n"
|
|
"%s is distributed in the hope that it will be useful,\n"
|
|
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
|
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
|
|
"Lesser General Public License for more details.\n"
|
|
"\n"
|
|
"You should have received a copy of the GNU Lesser General Public\n"
|
|
"License along with %s; if not, write to the Free Software\n"
|
|
"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
|
|
program_name, program_name, program_name
|
|
#endif
|
|
);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int show_formats(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
AVInputFormat *ifmt = NULL;
|
|
AVOutputFormat *ofmt = NULL;
|
|
const char *last_name;
|
|
|
|
printf("File formats:\n"
|
|
" D. = Demuxing supported\n"
|
|
" .E = Muxing supported\n"
|
|
" --\n");
|
|
last_name = "000";
|
|
for (;;) {
|
|
int decode = 0;
|
|
int encode = 0;
|
|
const char *name = NULL;
|
|
const char *long_name = NULL;
|
|
|
|
while ((ofmt = av_oformat_next(ofmt))) {
|
|
if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
|
|
strcmp(ofmt->name, last_name) > 0) {
|
|
name = ofmt->name;
|
|
long_name = ofmt->long_name;
|
|
encode = 1;
|
|
}
|
|
}
|
|
while ((ifmt = av_iformat_next(ifmt))) {
|
|
if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
|
|
strcmp(ifmt->name, last_name) > 0) {
|
|
name = ifmt->name;
|
|
long_name = ifmt->long_name;
|
|
encode = 0;
|
|
}
|
|
if (name && strcmp(ifmt->name, name) == 0)
|
|
decode = 1;
|
|
}
|
|
if (name == NULL)
|
|
break;
|
|
last_name = name;
|
|
|
|
printf(" %s%s %-15s %s\n",
|
|
decode ? "D" : " ",
|
|
encode ? "E" : " ",
|
|
name,
|
|
long_name ? long_name:" ");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
|
|
if (codec->field) { \
|
|
const type *p = c->field; \
|
|
\
|
|
printf(" Supported " list_name ":"); \
|
|
while (*p != term) { \
|
|
get_name(*p); \
|
|
printf(" %s", name); \
|
|
p++; \
|
|
} \
|
|
printf("\n"); \
|
|
} \
|
|
|
|
static void print_codec(const AVCodec *c)
|
|
{
|
|
int encoder = av_codec_is_encoder(c);
|
|
|
|
printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
|
|
c->long_name ? c->long_name : "");
|
|
|
|
if (c->type == AVMEDIA_TYPE_VIDEO) {
|
|
printf(" Threading capabilities: ");
|
|
switch (c->capabilities & (CODEC_CAP_FRAME_THREADS |
|
|
CODEC_CAP_SLICE_THREADS)) {
|
|
case CODEC_CAP_FRAME_THREADS |
|
|
CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
|
|
case CODEC_CAP_FRAME_THREADS: printf("frame"); break;
|
|
case CODEC_CAP_SLICE_THREADS: printf("slice"); break;
|
|
default: printf("no"); break;
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
if (c->supported_framerates) {
|
|
const AVRational *fps = c->supported_framerates;
|
|
|
|
printf(" Supported framerates:");
|
|
while (fps->num) {
|
|
printf(" %d/%d", fps->num, fps->den);
|
|
fps++;
|
|
}
|
|
printf("\n");
|
|
}
|
|
PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
|
|
AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
|
|
PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
|
|
GET_SAMPLE_RATE_NAME);
|
|
PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
|
|
AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
|
|
PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
|
|
0, GET_CH_LAYOUT_DESC);
|
|
|
|
if (c->priv_class) {
|
|
show_help_children(c->priv_class,
|
|
AV_OPT_FLAG_ENCODING_PARAM |
|
|
AV_OPT_FLAG_DECODING_PARAM);
|
|
}
|
|
}
|
|
|
|
static char get_media_type_char(enum AVMediaType type)
|
|
{
|
|
switch (type) {
|
|
case AVMEDIA_TYPE_VIDEO: return 'V';
|
|
case AVMEDIA_TYPE_AUDIO: return 'A';
|
|
case AVMEDIA_TYPE_SUBTITLE: return 'S';
|
|
default: return '?';
|
|
}
|
|
}
|
|
|
|
static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
|
|
int encoder)
|
|
{
|
|
while ((prev = av_codec_next(prev))) {
|
|
if (prev->id == id &&
|
|
(encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
|
|
return prev;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void print_codecs_for_id(enum AVCodecID id, int encoder)
|
|
{
|
|
const AVCodec *codec = NULL;
|
|
|
|
printf(" (%s: ", encoder ? "encoders" : "decoders");
|
|
|
|
while ((codec = next_codec_for_id(id, codec, encoder)))
|
|
printf("%s ", codec->name);
|
|
|
|
printf(")");
|
|
}
|
|
|
|
int show_codecs(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
const AVCodecDescriptor *desc = NULL;
|
|
|
|
printf("Codecs:\n"
|
|
" D..... = Decoding supported\n"
|
|
" .E.... = Encoding supported\n"
|
|
" ..V... = Video codec\n"
|
|
" ..A... = Audio codec\n"
|
|
" ..S... = Subtitle codec\n"
|
|
" ...I.. = Intra frame-only codec\n"
|
|
" ....L. = Lossy compression\n"
|
|
" .....S = Lossless compression\n"
|
|
" -------\n");
|
|
while ((desc = avcodec_descriptor_next(desc))) {
|
|
const AVCodec *codec = NULL;
|
|
|
|
printf(avcodec_find_decoder(desc->id) ? "D" : ".");
|
|
printf(avcodec_find_encoder(desc->id) ? "E" : ".");
|
|
|
|
printf("%c", get_media_type_char(desc->type));
|
|
printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
|
|
printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
|
|
printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
|
|
|
|
printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
|
|
|
|
/* print decoders/encoders when there's more than one or their
|
|
* names are different from codec name */
|
|
while ((codec = next_codec_for_id(desc->id, codec, 0))) {
|
|
if (strcmp(codec->name, desc->name)) {
|
|
print_codecs_for_id(desc->id, 0);
|
|
break;
|
|
}
|
|
}
|
|
codec = NULL;
|
|
while ((codec = next_codec_for_id(desc->id, codec, 1))) {
|
|
if (strcmp(codec->name, desc->name)) {
|
|
print_codecs_for_id(desc->id, 1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
printf("\n");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void print_codecs(int encoder)
|
|
{
|
|
const AVCodecDescriptor *desc = NULL;
|
|
|
|
printf("%s:\n"
|
|
" V... = Video\n"
|
|
" A... = Audio\n"
|
|
" S... = Subtitle\n"
|
|
" .F.. = Frame-level multithreading\n"
|
|
" ..S. = Slice-level multithreading\n"
|
|
" ...X = Codec is experimental\n"
|
|
" ---\n",
|
|
encoder ? "Encoders" : "Decoders");
|
|
while ((desc = avcodec_descriptor_next(desc))) {
|
|
const AVCodec *codec = NULL;
|
|
|
|
while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
|
|
printf("%c", get_media_type_char(desc->type));
|
|
printf((codec->capabilities & CODEC_CAP_FRAME_THREADS) ? "F" : ".");
|
|
printf((codec->capabilities & CODEC_CAP_SLICE_THREADS) ? "S" : ".");
|
|
printf((codec->capabilities & CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
|
|
|
|
printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
|
|
if (strcmp(codec->name, desc->name))
|
|
printf(" (codec %s)", desc->name);
|
|
|
|
printf("\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
int show_decoders(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
print_codecs(0);
|
|
return 0;
|
|
}
|
|
|
|
int show_encoders(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
print_codecs(1);
|
|
return 0;
|
|
}
|
|
|
|
int show_bsfs(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
AVBitStreamFilter *bsf = NULL;
|
|
|
|
printf("Bitstream filters:\n");
|
|
while ((bsf = av_bitstream_filter_next(bsf)))
|
|
printf("%s\n", bsf->name);
|
|
printf("\n");
|
|
return 0;
|
|
}
|
|
|
|
int show_protocols(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
void *opaque = NULL;
|
|
const char *name;
|
|
|
|
printf("Supported file protocols:\n"
|
|
"Input:\n");
|
|
while ((name = avio_enum_protocols(&opaque, 0)))
|
|
printf("%s\n", name);
|
|
printf("Output:\n");
|
|
while ((name = avio_enum_protocols(&opaque, 1)))
|
|
printf("%s\n", name);
|
|
return 0;
|
|
}
|
|
|
|
int show_filters(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
const AVFilter av_unused(*filter) = NULL;
|
|
|
|
printf("Filters:\n");
|
|
#if CONFIG_AVFILTER
|
|
while ((filter = avfilter_next(filter)))
|
|
printf("%-16s %s\n", filter->name, filter->description);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int show_pix_fmts(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
const AVPixFmtDescriptor *pix_desc = NULL;
|
|
|
|
printf("Pixel formats:\n"
|
|
"I.... = Supported Input format for conversion\n"
|
|
".O... = Supported Output format for conversion\n"
|
|
"..H.. = Hardware accelerated format\n"
|
|
"...P. = Paletted format\n"
|
|
"....B = Bitstream format\n"
|
|
"FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
|
|
"-----\n");
|
|
|
|
#if !CONFIG_SWSCALE
|
|
# define sws_isSupportedInput(x) 0
|
|
# define sws_isSupportedOutput(x) 0
|
|
#endif
|
|
|
|
while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
|
|
enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
|
|
printf("%c%c%c%c%c %-16s %d %2d\n",
|
|
sws_isSupportedInput (pix_fmt) ? 'I' : '.',
|
|
sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
|
|
pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
|
|
pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
|
|
pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
|
|
pix_desc->name,
|
|
pix_desc->nb_components,
|
|
av_get_bits_per_pixel(pix_desc));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int show_sample_fmts(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
int i;
|
|
char fmt_str[128];
|
|
for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
|
|
printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
|
|
return 0;
|
|
}
|
|
|
|
static void show_help_codec(const char *name, int encoder)
|
|
{
|
|
const AVCodecDescriptor *desc;
|
|
const AVCodec *codec;
|
|
|
|
if (!name) {
|
|
av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
|
|
return;
|
|
}
|
|
|
|
codec = encoder ? avcodec_find_encoder_by_name(name) :
|
|
avcodec_find_decoder_by_name(name);
|
|
|
|
if (codec)
|
|
print_codec(codec);
|
|
else if ((desc = avcodec_descriptor_get_by_name(name))) {
|
|
int printed = 0;
|
|
|
|
while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
|
|
printed = 1;
|
|
print_codec(codec);
|
|
}
|
|
|
|
if (!printed) {
|
|
av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to Libav, "
|
|
"but no %s for it are available. Libav might need to be "
|
|
"recompiled with additional external libraries.\n",
|
|
name, encoder ? "encoders" : "decoders");
|
|
}
|
|
} else {
|
|
av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by Libav.\n",
|
|
name);
|
|
}
|
|
}
|
|
|
|
static void show_help_demuxer(const char *name)
|
|
{
|
|
const AVInputFormat *fmt = av_find_input_format(name);
|
|
|
|
if (!fmt) {
|
|
av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
|
|
return;
|
|
}
|
|
|
|
printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
|
|
|
|
if (fmt->extensions)
|
|
printf(" Common extensions: %s.\n", fmt->extensions);
|
|
|
|
if (fmt->priv_class)
|
|
show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
|
|
}
|
|
|
|
static void show_help_muxer(const char *name)
|
|
{
|
|
const AVCodecDescriptor *desc;
|
|
const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
|
|
|
|
if (!fmt) {
|
|
av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
|
|
return;
|
|
}
|
|
|
|
printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
|
|
|
|
if (fmt->extensions)
|
|
printf(" Common extensions: %s.\n", fmt->extensions);
|
|
if (fmt->mime_type)
|
|
printf(" Mime type: %s.\n", fmt->mime_type);
|
|
if (fmt->video_codec != AV_CODEC_ID_NONE &&
|
|
(desc = avcodec_descriptor_get(fmt->video_codec))) {
|
|
printf(" Default video codec: %s.\n", desc->name);
|
|
}
|
|
if (fmt->audio_codec != AV_CODEC_ID_NONE &&
|
|
(desc = avcodec_descriptor_get(fmt->audio_codec))) {
|
|
printf(" Default audio codec: %s.\n", desc->name);
|
|
}
|
|
if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
|
|
(desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
|
|
printf(" Default subtitle codec: %s.\n", desc->name);
|
|
}
|
|
|
|
if (fmt->priv_class)
|
|
show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
|
|
}
|
|
|
|
#if CONFIG_AVFILTER
|
|
static void show_help_filter(const char *name)
|
|
{
|
|
const AVFilter *f = avfilter_get_by_name(name);
|
|
int i, count;
|
|
|
|
if (!name) {
|
|
av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
|
|
return;
|
|
} else if (!f) {
|
|
av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
|
|
return;
|
|
}
|
|
|
|
printf("Filter %s [%s]:\n", f->name, f->description);
|
|
|
|
if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
|
|
printf(" slice threading supported\n");
|
|
|
|
printf(" Inputs:\n");
|
|
count = avfilter_pad_count(f->inputs);
|
|
for (i = 0; i < count; i++) {
|
|
printf(" %d %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
|
|
media_type_string(avfilter_pad_get_type(f->inputs, i)));
|
|
}
|
|
if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
|
|
printf(" dynamic (depending on the options)\n");
|
|
|
|
printf(" Outputs:\n");
|
|
count = avfilter_pad_count(f->outputs);
|
|
for (i = 0; i < count; i++) {
|
|
printf(" %d %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
|
|
media_type_string(avfilter_pad_get_type(f->outputs, i)));
|
|
}
|
|
if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
|
|
printf(" dynamic (depending on the options)\n");
|
|
|
|
if (f->priv_class)
|
|
show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM |
|
|
AV_OPT_FLAG_AUDIO_PARAM);
|
|
}
|
|
#endif
|
|
|
|
int show_help(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
char *topic, *par;
|
|
av_log_set_callback(log_callback_help);
|
|
|
|
topic = av_strdup(arg ? arg : "");
|
|
par = strchr(topic, '=');
|
|
if (par)
|
|
*par++ = 0;
|
|
|
|
if (!*topic) {
|
|
show_help_default(topic, par);
|
|
} else if (!strcmp(topic, "decoder")) {
|
|
show_help_codec(par, 0);
|
|
} else if (!strcmp(topic, "encoder")) {
|
|
show_help_codec(par, 1);
|
|
} else if (!strcmp(topic, "demuxer")) {
|
|
show_help_demuxer(par);
|
|
} else if (!strcmp(topic, "muxer")) {
|
|
show_help_muxer(par);
|
|
#if CONFIG_AVFILTER
|
|
} else if (!strcmp(topic, "filter")) {
|
|
show_help_filter(par);
|
|
#endif
|
|
} else {
|
|
show_help_default(topic, par);
|
|
}
|
|
|
|
av_freep(&topic);
|
|
return 0;
|
|
}
|
|
|
|
int read_yesno(void)
|
|
{
|
|
int c = getchar();
|
|
int yesno = (av_toupper(c) == 'Y');
|
|
|
|
while (c != '\n' && c != EOF)
|
|
c = getchar();
|
|
|
|
return yesno;
|
|
}
|
|
|
|
int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
|
|
{
|
|
int ret;
|
|
FILE *f = fopen(filename, "rb");
|
|
|
|
if (!f) {
|
|
av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
|
|
strerror(errno));
|
|
return AVERROR(errno);
|
|
}
|
|
fseek(f, 0, SEEK_END);
|
|
*size = ftell(f);
|
|
fseek(f, 0, SEEK_SET);
|
|
*bufptr = av_malloc(*size + 1);
|
|
if (!*bufptr) {
|
|
av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
|
|
fclose(f);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
ret = fread(*bufptr, 1, *size, f);
|
|
if (ret < *size) {
|
|
av_free(*bufptr);
|
|
if (ferror(f)) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
|
|
filename, strerror(errno));
|
|
ret = AVERROR(errno);
|
|
} else
|
|
ret = AVERROR_EOF;
|
|
} else {
|
|
ret = 0;
|
|
(*bufptr)[(*size)++] = '\0';
|
|
}
|
|
|
|
fclose(f);
|
|
return ret;
|
|
}
|
|
|
|
void init_pts_correction(PtsCorrectionContext *ctx)
|
|
{
|
|
ctx->num_faulty_pts = ctx->num_faulty_dts = 0;
|
|
ctx->last_pts = ctx->last_dts = INT64_MIN;
|
|
}
|
|
|
|
int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts,
|
|
int64_t dts)
|
|
{
|
|
int64_t pts = AV_NOPTS_VALUE;
|
|
|
|
if (dts != AV_NOPTS_VALUE) {
|
|
ctx->num_faulty_dts += dts <= ctx->last_dts;
|
|
ctx->last_dts = dts;
|
|
}
|
|
if (reordered_pts != AV_NOPTS_VALUE) {
|
|
ctx->num_faulty_pts += reordered_pts <= ctx->last_pts;
|
|
ctx->last_pts = reordered_pts;
|
|
}
|
|
if ((ctx->num_faulty_pts<=ctx->num_faulty_dts || dts == AV_NOPTS_VALUE)
|
|
&& reordered_pts != AV_NOPTS_VALUE)
|
|
pts = reordered_pts;
|
|
else
|
|
pts = dts;
|
|
|
|
return pts;
|
|
}
|
|
|
|
FILE *get_preset_file(char *filename, size_t filename_size,
|
|
const char *preset_name, int is_path,
|
|
const char *codec_name)
|
|
{
|
|
FILE *f = NULL;
|
|
int i;
|
|
const char *base[3] = { getenv("AVCONV_DATADIR"),
|
|
getenv("HOME"),
|
|
AVCONV_DATADIR, };
|
|
|
|
if (is_path) {
|
|
av_strlcpy(filename, preset_name, filename_size);
|
|
f = fopen(filename, "r");
|
|
} else {
|
|
for (i = 0; i < 3 && !f; i++) {
|
|
if (!base[i])
|
|
continue;
|
|
snprintf(filename, filename_size, "%s%s/%s.avpreset", base[i],
|
|
i != 1 ? "" : "/.avconv", preset_name);
|
|
f = fopen(filename, "r");
|
|
if (!f && codec_name) {
|
|
snprintf(filename, filename_size,
|
|
"%s%s/%s-%s.avpreset",
|
|
base[i], i != 1 ? "" : "/.avconv", codec_name,
|
|
preset_name);
|
|
f = fopen(filename, "r");
|
|
}
|
|
}
|
|
}
|
|
|
|
return f;
|
|
}
|
|
|
|
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
|
|
{
|
|
if (*spec <= '9' && *spec >= '0') /* opt:index */
|
|
return strtol(spec, NULL, 0) == st->index;
|
|
else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
|
|
*spec == 't') { /* opt:[vasdt] */
|
|
enum AVMediaType type;
|
|
|
|
switch (*spec++) {
|
|
case 'v': type = AVMEDIA_TYPE_VIDEO; break;
|
|
case 'a': type = AVMEDIA_TYPE_AUDIO; break;
|
|
case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
|
|
case 'd': type = AVMEDIA_TYPE_DATA; break;
|
|
case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
|
|
default: av_assert0(0);
|
|
}
|
|
if (type != st->codec->codec_type)
|
|
return 0;
|
|
if (*spec++ == ':') { /* possibly followed by :index */
|
|
int i, index = strtol(spec, NULL, 0);
|
|
for (i = 0; i < s->nb_streams; i++)
|
|
if (s->streams[i]->codec->codec_type == type && index-- == 0)
|
|
return i == st->index;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
} else if (*spec == 'p' && *(spec + 1) == ':') {
|
|
int prog_id, i, j;
|
|
char *endptr;
|
|
spec += 2;
|
|
prog_id = strtol(spec, &endptr, 0);
|
|
for (i = 0; i < s->nb_programs; i++) {
|
|
if (s->programs[i]->id != prog_id)
|
|
continue;
|
|
|
|
if (*endptr++ == ':') {
|
|
int stream_idx = strtol(endptr, NULL, 0);
|
|
return stream_idx >= 0 &&
|
|
stream_idx < s->programs[i]->nb_stream_indexes &&
|
|
st->index == s->programs[i]->stream_index[stream_idx];
|
|
}
|
|
|
|
for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
|
|
if (st->index == s->programs[i]->stream_index[j])
|
|
return 1;
|
|
}
|
|
return 0;
|
|
} else if (!*spec) /* empty specifier, matches everything */
|
|
return 1;
|
|
|
|
av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
|
|
AVFormatContext *s, AVStream *st, AVCodec *codec)
|
|
{
|
|
AVDictionary *ret = NULL;
|
|
AVDictionaryEntry *t = NULL;
|
|
int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
|
|
: AV_OPT_FLAG_DECODING_PARAM;
|
|
char prefix = 0;
|
|
const AVClass *cc = avcodec_get_class();
|
|
|
|
if (!codec)
|
|
codec = s->oformat ? avcodec_find_encoder(codec_id)
|
|
: avcodec_find_decoder(codec_id);
|
|
|
|
switch (st->codec->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
prefix = 'v';
|
|
flags |= AV_OPT_FLAG_VIDEO_PARAM;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
prefix = 'a';
|
|
flags |= AV_OPT_FLAG_AUDIO_PARAM;
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
prefix = 's';
|
|
flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
|
|
break;
|
|
}
|
|
|
|
while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
|
|
char *p = strchr(t->key, ':');
|
|
|
|
/* check stream specification in opt name */
|
|
if (p)
|
|
switch (check_stream_specifier(s, st, p + 1)) {
|
|
case 1: *p = 0; break;
|
|
case 0: continue;
|
|
default: return NULL;
|
|
}
|
|
|
|
if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
|
|
(codec && codec->priv_class &&
|
|
av_opt_find(&codec->priv_class, t->key, NULL, flags,
|
|
AV_OPT_SEARCH_FAKE_OBJ)))
|
|
av_dict_set(&ret, t->key, t->value, 0);
|
|
else if (t->key[0] == prefix &&
|
|
av_opt_find(&cc, t->key + 1, NULL, flags,
|
|
AV_OPT_SEARCH_FAKE_OBJ))
|
|
av_dict_set(&ret, t->key + 1, t->value, 0);
|
|
|
|
if (p)
|
|
*p = ':';
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
|
|
AVDictionary *codec_opts)
|
|
{
|
|
int i;
|
|
AVDictionary **opts;
|
|
|
|
if (!s->nb_streams)
|
|
return NULL;
|
|
opts = av_mallocz(s->nb_streams * sizeof(*opts));
|
|
if (!opts) {
|
|
av_log(NULL, AV_LOG_ERROR,
|
|
"Could not alloc memory for stream options.\n");
|
|
return NULL;
|
|
}
|
|
for (i = 0; i < s->nb_streams; i++)
|
|
opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
|
|
s, s->streams[i], NULL);
|
|
return opts;
|
|
}
|
|
|
|
void *grow_array(void *array, int elem_size, int *size, int new_size)
|
|
{
|
|
if (new_size >= INT_MAX / elem_size) {
|
|
av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
|
|
exit_program(1);
|
|
}
|
|
if (*size < new_size) {
|
|
uint8_t *tmp = av_realloc(array, new_size*elem_size);
|
|
if (!tmp) {
|
|
av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
|
|
exit_program(1);
|
|
}
|
|
memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
|
|
*size = new_size;
|
|
return tmp;
|
|
}
|
|
return array;
|
|
}
|
|
|
|
const char *media_type_string(enum AVMediaType media_type)
|
|
{
|
|
switch (media_type) {
|
|
case AVMEDIA_TYPE_VIDEO: return "video";
|
|
case AVMEDIA_TYPE_AUDIO: return "audio";
|
|
case AVMEDIA_TYPE_DATA: return "data";
|
|
case AVMEDIA_TYPE_SUBTITLE: return "subtitle";
|
|
case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
|
|
default: return "unknown";
|
|
}
|
|
}
|