mirror of https://git.ffmpeg.org/ffmpeg.git
830 lines
28 KiB
C
830 lines
28 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 FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 "libswscale/swscale.h"
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#include "libpostproc/postprocess.h"
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#include "libavutil/avstring.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 "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/resource.h>
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#endif
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AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
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AVFormatContext *avformat_opts;
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struct SwsContext *sws_opts;
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AVDictionary *format_opts, *codec_opts;
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static const int this_year = 2011;
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void init_opts(void)
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{
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int i;
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for (i = 0; i < AVMEDIA_TYPE_NB; i++)
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avcodec_opts[i] = avcodec_alloc_context3(NULL);
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avformat_opts = avformat_alloc_context();
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#if CONFIG_SWSCALE
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sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC, 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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int i;
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for (i = 0; i < AVMEDIA_TYPE_NB; i++)
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av_freep(&avcodec_opts[i]);
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av_freep(&avformat_opts->key);
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av_freep(&avformat_opts);
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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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}
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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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double parse_number_or_die(const char *context, const char *numstr, int type, 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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fprintf(stderr, error, context, numstr, min, max);
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exit(1);
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}
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int64_t parse_time_or_die(const char *context, const char *timestr, 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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fprintf(stderr, "Invalid %s specification for %s: %s\n",
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is_duration ? "duration" : "date", context, timestr);
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exit(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 mask, int value)
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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 & mask) == value) {
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if (first) {
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printf("%s", 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->flags & HAS_ARG) {
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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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}
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}
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static const OptionDef* find_option(const OptionDef *po, const char *name){
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while (po->name != NULL) {
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if (!strcmp(name, po->name))
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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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#if defined(_WIN32) && !defined(__MINGW32CE__)
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#include <windows.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 /* WIN32 && !__MINGW32CE__ */
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void parse_options(int argc, char **argv, const OptionDef *options,
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int (* parse_arg_function)(const char *opt, const char *arg))
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{
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const char *opt, *arg;
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int optindex, handleoptions=1;
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const OptionDef *po;
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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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int bool_val = 1;
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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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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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goto unknown_opt;
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bool_val = 0;
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}
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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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unknown_opt:
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fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
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exit(1);
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}
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arg = NULL;
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if (po->flags & HAS_ARG) {
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arg = argv[optindex++];
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if (!arg) {
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fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
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exit(1);
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}
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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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*po->u.str_arg = str;
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} else if (po->flags & OPT_BOOL) {
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*po->u.int_arg = bool_val;
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} else if (po->flags & OPT_INT) {
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*po->u.int_arg = 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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*po->u.int64_arg = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
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} else if (po->flags & OPT_FLOAT) {
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*po->u.float_arg = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
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} else if (po->u.func_arg) {
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if (po->u.func_arg(opt, arg) < 0) {
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fprintf(stderr, "%s: failed to set value '%s' for option '%s'\n", argv[0], arg ? arg : "[null]", opt);
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exit(1);
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}
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}
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if(po->flags & OPT_EXIT)
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exit(0);
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} else {
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if (parse_arg_function) {
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if (parse_arg_function(NULL, opt) < 0)
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exit(1);
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}
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}
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}
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}
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#define FLAGS (o->type == FF_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
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int opt_default(const char *opt, const char *arg)
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{
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const AVOption *o;
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if ((o = av_opt_find(avcodec_opts[0], opt, NULL, 0, AV_OPT_SEARCH_CHILDREN)) ||
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((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
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(o = av_opt_find(avcodec_opts[0], opt+1, NULL, 0, 0))))
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av_dict_set(&codec_opts, opt, arg, FLAGS);
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else if ((o = av_opt_find(avformat_opts, opt, NULL, 0, AV_OPT_SEARCH_CHILDREN)))
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av_dict_set(&format_opts, opt, arg, FLAGS);
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else if ((o = av_opt_find(sws_opts, opt, NULL, 0, AV_OPT_SEARCH_CHILDREN))) {
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// XXX we only support sws_flags, not arbitrary sws options
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int ret = av_set_string3(sws_opts, opt, arg, 1, NULL);
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if (ret < 0) {
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av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
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return ret;
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}
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}
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if (o)
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return 0;
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fprintf(stderr, "Unrecognized option '%s'\n", opt);
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return AVERROR_OPTION_NOT_FOUND;
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}
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int opt_loglevel(const char *opt, const char *arg)
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{
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const struct { const char *name; int level; } log_levels[] = {
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{ "quiet" , AV_LOG_QUIET },
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{ "panic" , AV_LOG_PANIC },
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{ "fatal" , AV_LOG_FATAL },
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{ "error" , AV_LOG_ERROR },
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{ "warning", AV_LOG_WARNING },
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{ "info" , AV_LOG_INFO },
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{ "verbose", AV_LOG_VERBOSE },
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{ "debug" , AV_LOG_DEBUG },
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};
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char *tail;
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int level;
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
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if (!strcmp(log_levels[i].name, arg)) {
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av_log_set_level(log_levels[i].level);
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return 0;
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}
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}
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level = strtol(arg, &tail, 10);
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if (*tail) {
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fprintf(stderr, "Invalid loglevel \"%s\". "
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"Possible levels are numbers or:\n", arg);
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for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
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fprintf(stderr, "\"%s\"\n", log_levels[i].name);
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exit(1);
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}
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av_log_set_level(level);
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return 0;
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}
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int opt_timelimit(const char *opt, const char *arg)
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{
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#if HAVE_SETRLIMIT
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int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
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struct rlimit rl = { lim, lim + 1 };
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if (setrlimit(RLIMIT_CPU, &rl))
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perror("setrlimit");
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#else
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fprintf(stderr, "Warning: -%s not implemented on this OS\n", opt);
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#endif
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return 0;
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}
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void print_error(const char *filename, int err)
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{
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char errbuf[128];
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const char *errbuf_ptr = errbuf;
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if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
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errbuf_ptr = strerror(AVUNERROR(err));
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fprintf(stderr, "%s: %s\n", filename, errbuf_ptr);
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}
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static int warned_cfg = 0;
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#define INDENT 1
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#define SHOW_VERSION 2
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#define SHOW_CONFIG 4
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#define PRINT_LIB_INFO(outstream,libname,LIBNAME,flags) \
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if (CONFIG_##LIBNAME) { \
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const char *indent = flags & INDENT? " " : ""; \
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if (flags & SHOW_VERSION) { \
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unsigned int version = libname##_version(); \
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fprintf(outstream, "%slib%-9s %2d.%3d.%2d / %2d.%3d.%2d\n", \
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indent, #libname, \
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LIB##LIBNAME##_VERSION_MAJOR, \
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LIB##LIBNAME##_VERSION_MINOR, \
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LIB##LIBNAME##_VERSION_MICRO, \
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version >> 16, version >> 8 & 0xff, version & 0xff); \
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} \
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if (flags & SHOW_CONFIG) { \
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const char *cfg = libname##_configuration(); \
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if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
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if (!warned_cfg) { \
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fprintf(outstream, \
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"%sWARNING: library configuration mismatch\n", \
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indent); \
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warned_cfg = 1; \
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} \
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fprintf(stderr, "%s%-11s configuration: %s\n", \
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indent, #libname, cfg); \
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} \
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} \
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} \
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static void print_all_libs_info(FILE* outstream, int flags)
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{
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PRINT_LIB_INFO(outstream, avutil, AVUTIL, flags);
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PRINT_LIB_INFO(outstream, avcodec, AVCODEC, flags);
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PRINT_LIB_INFO(outstream, avformat, AVFORMAT, flags);
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PRINT_LIB_INFO(outstream, avdevice, AVDEVICE, flags);
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PRINT_LIB_INFO(outstream, avfilter, AVFILTER, flags);
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PRINT_LIB_INFO(outstream, swscale, SWSCALE, flags);
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PRINT_LIB_INFO(outstream, postproc, POSTPROC, flags);
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}
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void show_banner(void)
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{
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fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d the FFmpeg developers\n",
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program_name, program_birth_year, this_year);
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fprintf(stderr, " built on %s %s with %s %s\n",
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__DATE__, __TIME__, CC_TYPE, CC_VERSION);
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fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
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print_all_libs_info(stderr, INDENT|SHOW_CONFIG);
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print_all_libs_info(stderr, INDENT|SHOW_VERSION);
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}
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int opt_version(const char *opt, const char *arg) {
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printf("%s " FFMPEG_VERSION "\n", program_name);
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print_all_libs_info(stdout, SHOW_VERSION);
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return 0;
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}
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int opt_license(const char *opt, const char *arg)
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{
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printf(
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#if CONFIG_NONFREE
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"This version of %s has nonfree parts compiled in.\n"
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"Therefore it is not legally redistributable.\n",
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program_name
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#elif CONFIG_GPLV3
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"%s is free software; you can redistribute it and/or modify\n"
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"it under the terms of the GNU General Public License as published by\n"
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"the Free Software Foundation; either version 3 of the License, or\n"
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"(at your option) any later version.\n"
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"\n"
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"%s is distributed in the hope that it will be useful,\n"
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"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
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"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
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"GNU General Public License for more details.\n"
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"\n"
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"You should have received a copy of the GNU General Public License\n"
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"along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
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program_name, program_name, program_name
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#elif CONFIG_GPL
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"%s is free software; you can redistribute it and/or modify\n"
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"it under the terms of the GNU General Public License as published by\n"
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"the Free Software Foundation; either version 2 of the License, or\n"
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"(at your option) any later version.\n"
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"\n"
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"%s is distributed in the hope that it will be useful,\n"
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"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
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"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
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"GNU General Public License for more details.\n"
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"\n"
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"You should have received a copy of the GNU General Public License\n"
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"along with %s; if not, write to the Free Software\n"
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"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
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program_name, program_name, program_name
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#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 opt_formats(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;
|
|
}
|
|
|
|
int opt_codecs(const char *opt, const char *arg)
|
|
{
|
|
AVCodec *p=NULL, *p2;
|
|
const char *last_name;
|
|
printf(
|
|
"Codecs:\n"
|
|
" D..... = Decoding supported\n"
|
|
" .E.... = Encoding supported\n"
|
|
" ..V... = Video codec\n"
|
|
" ..A... = Audio codec\n"
|
|
" ..S... = Subtitle codec\n"
|
|
" ...S.. = Supports draw_horiz_band\n"
|
|
" ....D. = Supports direct rendering method 1\n"
|
|
" .....T = Supports weird frame truncation\n"
|
|
" ------\n");
|
|
last_name= "000";
|
|
for(;;){
|
|
int decode=0;
|
|
int encode=0;
|
|
int cap=0;
|
|
const char *type_str;
|
|
|
|
p2=NULL;
|
|
while((p= av_codec_next(p))) {
|
|
if((p2==NULL || strcmp(p->name, p2->name)<0) &&
|
|
strcmp(p->name, last_name)>0){
|
|
p2= p;
|
|
decode= encode= cap=0;
|
|
}
|
|
if(p2 && strcmp(p->name, p2->name)==0){
|
|
if(p->decode) decode=1;
|
|
if(p->encode) encode=1;
|
|
cap |= p->capabilities;
|
|
}
|
|
}
|
|
if(p2==NULL)
|
|
break;
|
|
last_name= p2->name;
|
|
|
|
switch(p2->type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
type_str = "V";
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
type_str = "A";
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
type_str = "S";
|
|
break;
|
|
default:
|
|
type_str = "?";
|
|
break;
|
|
}
|
|
printf(
|
|
" %s%s%s%s%s%s %-15s %s",
|
|
decode ? "D": (/*p2->decoder ? "d":*/" "),
|
|
encode ? "E":" ",
|
|
type_str,
|
|
cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
|
|
cap & CODEC_CAP_DR1 ? "D":" ",
|
|
cap & CODEC_CAP_TRUNCATED ? "T":" ",
|
|
p2->name,
|
|
p2->long_name ? p2->long_name : "");
|
|
/* if(p2->decoder && decode==0)
|
|
printf(" use %s for decoding", p2->decoder->name);*/
|
|
printf("\n");
|
|
}
|
|
printf("\n");
|
|
printf(
|
|
"Note, the names of encoders and decoders do not always match, so there are\n"
|
|
"several cases where the above table shows encoder only or decoder only entries\n"
|
|
"even though both encoding and decoding are supported. For example, the h263\n"
|
|
"decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
|
|
"worse.\n");
|
|
return 0;
|
|
}
|
|
|
|
int opt_bsfs(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 opt_protocols(const char *opt, const char *arg)
|
|
{
|
|
URLProtocol *up=NULL;
|
|
|
|
printf("Supported file protocols:\n"
|
|
"I.. = Input supported\n"
|
|
".O. = Output supported\n"
|
|
"..S = Seek supported\n"
|
|
"FLAGS NAME\n"
|
|
"----- \n");
|
|
while((up = av_protocol_next(up)))
|
|
printf("%c%c%c %s\n",
|
|
up->url_read ? 'I' : '.',
|
|
up->url_write ? 'O' : '.',
|
|
up->url_seek ? 'S' : '.',
|
|
up->name);
|
|
return 0;
|
|
}
|
|
|
|
int opt_filters(const char *opt, const char *arg)
|
|
{
|
|
AVFilter av_unused(**filter) = NULL;
|
|
|
|
printf("Filters:\n");
|
|
#if CONFIG_AVFILTER
|
|
while ((filter = av_filter_next(filter)) && *filter)
|
|
printf("%-16s %s\n", (*filter)->name, (*filter)->description);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int opt_pix_fmts(const char *opt, const char *arg)
|
|
{
|
|
enum PixelFormat pix_fmt;
|
|
|
|
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
|
|
|
|
for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) {
|
|
const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
|
|
printf("%c%c%c%c%c %-16s %d %2d\n",
|
|
sws_isSupportedInput (pix_fmt) ? 'I' : '.',
|
|
sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
|
|
pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
|
|
pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
|
|
pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
|
|
pix_desc->name,
|
|
pix_desc->nb_components,
|
|
av_get_bits_per_pixel(pix_desc));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int read_yesno(void)
|
|
{
|
|
int c = getchar();
|
|
int yesno = (toupper(c) == 'Y');
|
|
|
|
while (c != '\n' && c != EOF)
|
|
c = getchar();
|
|
|
|
return yesno;
|
|
}
|
|
|
|
int read_file(const char *filename, char **bufptr, size_t *size)
|
|
{
|
|
FILE *f = fopen(filename, "rb");
|
|
|
|
if (!f) {
|
|
fprintf(stderr, "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) {
|
|
fprintf(stderr, "Could not allocate file buffer\n");
|
|
fclose(f);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
fread(*bufptr, 1, *size, f);
|
|
(*bufptr)[*size++] = '\0';
|
|
|
|
fclose(f);
|
|
return 0;
|
|
}
|
|
|
|
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("FFMPEG_DATADIR"),
|
|
getenv("HOME"),
|
|
FFMPEG_DATADIR,
|
|
};
|
|
|
|
if (is_path) {
|
|
av_strlcpy(filename, preset_name, filename_size);
|
|
f = fopen(filename, "r");
|
|
} else {
|
|
#ifdef _WIN32
|
|
char datadir[MAX_PATH], *ls;
|
|
base[2] = NULL;
|
|
|
|
if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
|
|
{
|
|
for (ls = datadir; ls < datadir + strlen(datadir); ls++)
|
|
if (*ls == '\\') *ls = '/';
|
|
|
|
if (ls = strrchr(datadir, '/'))
|
|
{
|
|
*ls = 0;
|
|
strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
|
|
base[2] = datadir;
|
|
}
|
|
}
|
|
#endif
|
|
for (i = 0; i < 3 && !f; i++) {
|
|
if (!base[i])
|
|
continue;
|
|
snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", preset_name);
|
|
f = fopen(filename, "r");
|
|
if (!f && codec_name) {
|
|
snprintf(filename, filename_size,
|
|
"%s%s/%s-%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", codec_name, preset_name);
|
|
f = fopen(filename, "r");
|
|
}
|
|
}
|
|
}
|
|
|
|
return f;
|
|
}
|
|
|
|
AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id, int encoder)
|
|
{
|
|
AVDictionary *ret = NULL;
|
|
AVDictionaryEntry *t = NULL;
|
|
AVCodec *codec = encoder ? avcodec_find_encoder(codec_id) : avcodec_find_decoder(codec_id);
|
|
int flags = encoder ? AV_OPT_FLAG_ENCODING_PARAM : AV_OPT_FLAG_DECODING_PARAM;
|
|
char prefix = 0;
|
|
|
|
if (!codec)
|
|
return NULL;
|
|
|
|
switch (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)) {
|
|
if (av_opt_find(avcodec_opts[0], t->key, NULL, flags, 0) ||
|
|
(codec && codec->priv_class && av_opt_find(&codec->priv_class, t->key, NULL, flags, 0)))
|
|
av_dict_set(&ret, t->key, t->value, 0);
|
|
else if (t->key[0] == prefix && av_opt_find(avcodec_opts[0], t->key+1, NULL, flags, 0))
|
|
av_dict_set(&ret, t->key+1, t->value, 0);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
AVDictionary **setup_find_stream_info_opts(AVFormatContext *s)
|
|
{
|
|
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, 0);
|
|
return opts;
|
|
}
|
|
|