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1629 lines
51 KiB
1629 lines
51 KiB
/* |
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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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|
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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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|
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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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|
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#include "config.h" |
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#include "compat/va_copy.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 "libswresample/swresample.h" |
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#if CONFIG_POSTPROC |
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#include "libpostproc/postprocess.h" |
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#endif |
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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 "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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|
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struct SwsContext *sws_opts; |
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SwrContext *swr_opts; |
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AVDictionary *format_opts, *codec_opts; |
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|
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const int this_year = 2012; |
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|
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static FILE *report_file; |
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|
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void init_opts(void) |
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{ |
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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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|
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if(CONFIG_SWRESAMPLE) |
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swr_opts = swr_alloc(); |
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} |
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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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|
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if(CONFIG_SWRESAMPLE) |
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swr_free(&swr_opts); |
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|
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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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|
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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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|
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static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl) |
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{ |
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va_list vl2; |
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char line[1024]; |
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static int print_prefix = 1; |
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|
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va_copy(vl2, vl); |
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av_log_default_callback(ptr, level, fmt, vl); |
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av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix); |
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va_end(vl2); |
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fputs(line, report_file); |
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fflush(report_file); |
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} |
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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(1); |
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return 0; |
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} |
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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(1); |
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} |
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return us; |
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} |
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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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|
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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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|
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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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if (class->option) { |
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av_opt_show2(&class, NULL, flags, 0); |
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printf("\n"); |
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} |
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|
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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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|
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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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#if defined(_WIN32) && !defined(__MINGW32CE__) |
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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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/** |
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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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|
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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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|
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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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|
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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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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 bool_val = 1; |
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int *dstcount; |
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void *dst; |
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|
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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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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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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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|
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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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dst = po->flags & (OPT_OFFSET | OPT_SPEC) ? (uint8_t *)optctx + po->u.off |
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: po->u.dst_ptr; |
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|
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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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|
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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) { |
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*(int *)dst = bool_val; |
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} else if (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(0); |
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return !!(po->flags & HAS_ARG); |
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} |
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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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|
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/* perform system-dependent conversions for arguments list */ |
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prepare_app_arguments(&argc, &argv); |
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|
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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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|
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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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|
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if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0) |
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exit(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 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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|
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for (i = 1; i < argc; i++) { |
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const char *cur_opt = argv[i]; |
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|
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if (*cur_opt++ != '-') |
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continue; |
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|
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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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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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static void dump_argument(const char *a) |
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{ |
|
const unsigned char *p; |
|
|
|
for (p = a; *p; p++) |
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if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') || |
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*p == '_' || (*p >= 'a' && *p <= 'z'))) |
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break; |
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if (!*p) { |
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fputs(a, report_file); |
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return; |
|
} |
|
fputc('"', report_file); |
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for (p = a; *p; p++) { |
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if (*p == '\\' || *p == '"' || *p == '$' || *p == '`') |
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fprintf(report_file, "\\%c", *p); |
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else if (*p < ' ' || *p > '~') |
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fprintf(report_file, "\\x%02x", *p); |
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else |
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fputc(*p, report_file); |
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} |
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fputc('"', report_file); |
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} |
|
|
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void parse_loglevel(int argc, char **argv, const OptionDef *options) |
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{ |
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int idx = locate_option(argc, argv, options, "loglevel"); |
|
if (!idx) |
|
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]); |
|
idx = locate_option(argc, argv, options, "report"); |
|
if (idx || getenv("FFREPORT")) { |
|
opt_report("report"); |
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if (report_file) { |
|
int i; |
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fprintf(report_file, "Command line:\n"); |
|
for (i = 0; i < argc; i++) { |
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dump_argument(argv[i]); |
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fputc(i < argc - 1 ? ' ' : '\n', report_file); |
|
} |
|
fflush(report_file); |
|
} |
|
} |
|
} |
|
|
|
#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(), *sc, *swr_class; |
|
|
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if (!(p = strchr(opt, ':'))) |
|
p = opt + strlen(opt); |
|
av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1)); |
|
|
|
if ((o = av_opt_find(&cc, opt_stripped, NULL, 0, |
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AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) || |
|
((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_SWSCALE |
|
sc = sws_get_class(); |
|
if (!o && (o = av_opt_find(&sc, opt, NULL, 0, |
|
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 CONFIG_SWRESAMPLE |
|
swr_class = swr_get_class(); |
|
if (!o && (o = av_opt_find(&swr_class, opt, NULL, 0, |
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) { |
|
int ret = av_opt_set(swr_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; |
|
av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt); |
|
return AVERROR_OPTION_NOT_FOUND; |
|
} |
|
|
|
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(1); |
|
} |
|
av_log_set_level(level); |
|
return 0; |
|
} |
|
|
|
int opt_report(const char *opt) |
|
{ |
|
char filename[64]; |
|
time_t now; |
|
struct tm *tm; |
|
|
|
if (report_file) /* already opened */ |
|
return 0; |
|
time(&now); |
|
tm = localtime(&now); |
|
snprintf(filename, sizeof(filename), "%s-%04d%02d%02d-%02d%02d%02d.log", |
|
program_name, |
|
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, |
|
tm->tm_hour, tm->tm_min, tm->tm_sec); |
|
report_file = fopen(filename, "w"); |
|
if (!report_file) { |
|
av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n", |
|
filename, strerror(errno)); |
|
return AVERROR(errno); |
|
} |
|
av_log_set_callback(log_callback_report); |
|
av_log(NULL, AV_LOG_INFO, |
|
"%s started on %04d-%02d-%02d at %02d:%02d:%02d\n" |
|
"Report written to \"%s\"\n", |
|
program_name, |
|
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, |
|
tm->tm_hour, tm->tm_min, tm->tm_sec, |
|
filename); |
|
av_log_set_level(FFMAX(av_log_get_level(), AV_LOG_VERBOSE)); |
|
return 0; |
|
} |
|
|
|
int opt_max_alloc(void *optctx, const char *opt, const char *arg) |
|
{ |
|
char *tail; |
|
size_t max; |
|
|
|
max = strtol(arg, &tail, 10); |
|
if (*tail) { |
|
av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg); |
|
exit(1); |
|
} |
|
av_max_alloc(max); |
|
return 0; |
|
} |
|
|
|
int opt_cpuflags(void *optctx, const char *opt, const char *arg) |
|
{ |
|
int ret; |
|
unsigned flags = av_get_cpu_flags(); |
|
|
|
if ((ret = av_parse_cpu_caps(&flags, arg)) < 0) |
|
return ret; |
|
|
|
av_force_cpu_flags(flags); |
|
return 0; |
|
} |
|
|
|
int opt_codec_debug(void *optctx, const char *opt, const char *arg) |
|
{ |
|
av_log_set_level(AV_LOG_DEBUG); |
|
return opt_default(NULL, opt, arg); |
|
} |
|
|
|
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 SHOW_COPYRIGHT 8 |
|
|
|
#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%-11s %2d.%3d.%3d / %2d.%3d.%3d\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(FFMPEG_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); |
|
PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level); |
|
#if CONFIG_POSTPROC |
|
PRINT_LIB_INFO(postproc, POSTPROC, flags, level); |
|
#endif |
|
} |
|
|
|
static void print_program_info(int flags, int level) |
|
{ |
|
const char *indent = flags & INDENT? " " : ""; |
|
|
|
av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name); |
|
if (flags & SHOW_COPYRIGHT) |
|
av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers", |
|
program_birth_year, this_year); |
|
av_log(NULL, level, "\n"); |
|
av_log(NULL, level, "%sbuilt on %s %s with %s\n", |
|
indent, __DATE__, __TIME__, CC_IDENT); |
|
|
|
av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent); |
|
} |
|
|
|
void show_banner(int argc, char **argv, const OptionDef *options) |
|
{ |
|
int idx = locate_option(argc, argv, options, "version"); |
|
if (idx) |
|
return; |
|
|
|
print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO); |
|
print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO); |
|
print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO); |
|
} |
|
|
|
int show_version(void *optctx, const char *opt, const char *arg) |
|
{ |
|
av_log_set_callback(log_callback_help); |
|
print_program_info (0 , AV_LOG_INFO); |
|
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_DATA: return 'D'; |
|
case AVMEDIA_TYPE_SUBTITLE: return 'S'; |
|
case AVMEDIA_TYPE_ATTACHMENT:return 'T'; |
|
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 int compare_codec_desc(const void *a, const void *b) |
|
{ |
|
const AVCodecDescriptor * const *da = a; |
|
const AVCodecDescriptor * const *db = b; |
|
|
|
return (*da)->type != (*db)->type ? (*da)->type - (*db)->type : |
|
strcmp((*da)->name, (*db)->name); |
|
} |
|
|
|
static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs) |
|
{ |
|
const AVCodecDescriptor *desc = NULL; |
|
const AVCodecDescriptor **codecs; |
|
unsigned nb_codecs = 0, i = 0; |
|
|
|
while ((desc = avcodec_descriptor_next(desc))) |
|
nb_codecs++; |
|
if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) { |
|
av_log(0, AV_LOG_ERROR, "Out of memory\n"); |
|
exit(1); |
|
} |
|
desc = NULL; |
|
while ((desc = avcodec_descriptor_next(desc))) |
|
codecs[i++] = desc; |
|
av_assert0(i == nb_codecs); |
|
qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc); |
|
*rcodecs = codecs; |
|
return nb_codecs; |
|
} |
|
|
|
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 **codecs; |
|
unsigned i, nb_codecs = get_codecs_sorted(&codecs); |
|
|
|
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"); |
|
for (i = 0; i < nb_codecs; i++) { |
|
const AVCodecDescriptor *desc = codecs[i]; |
|
const AVCodec *codec = NULL; |
|
|
|
printf(" "); |
|
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"); |
|
} |
|
av_free(codecs); |
|
return 0; |
|
} |
|
|
|
static void print_codecs(int encoder) |
|
{ |
|
const AVCodecDescriptor **codecs; |
|
unsigned i, nb_codecs = get_codecs_sorted(&codecs); |
|
|
|
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" |
|
" ....B. = Supports draw_horiz_band\n" |
|
" .....D = Supports direct rendering method 1\n" |
|
" ------\n", |
|
encoder ? "Encoders" : "Decoders"); |
|
for (i = 0; i < nb_codecs; i++) { |
|
const AVCodecDescriptor *desc = codecs[i]; |
|
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((codec->capabilities & CODEC_CAP_DRAW_HORIZ_BAND)?"B" : "."); |
|
printf((codec->capabilities & CODEC_CAP_DR1) ? "D" : "."); |
|
|
|
printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : ""); |
|
if (strcmp(codec->name, desc->name)) |
|
printf(" (codec %s)", desc->name); |
|
|
|
printf("\n"); |
|
} |
|
} |
|
av_free(codecs); |
|
} |
|
|
|
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) |
|
{ |
|
AVFilter av_unused(**filter) = NULL; |
|
char descr[64], *descr_cur; |
|
int i, j; |
|
const AVFilterPad *pad; |
|
|
|
printf("Filters:\n"); |
|
#if CONFIG_AVFILTER |
|
while ((filter = av_filter_next(filter)) && *filter) { |
|
descr_cur = descr; |
|
for (i = 0; i < 2; i++) { |
|
if (i) { |
|
*(descr_cur++) = '-'; |
|
*(descr_cur++) = '>'; |
|
} |
|
pad = i ? (*filter)->outputs : (*filter)->inputs; |
|
for (j = 0; pad && pad[j].name; j++) { |
|
if (descr_cur >= descr + sizeof(descr) - 4) |
|
break; |
|
*(descr_cur++) = get_media_type_char(pad[j].type); |
|
} |
|
if (!j) |
|
*(descr_cur++) = '|'; |
|
} |
|
*descr_cur = 0; |
|
printf("%-16s %-10s %s\n", (*filter)->name, descr, (*filter)->description); |
|
} |
|
#endif |
|
return 0; |
|
} |
|
|
|
int show_pix_fmts(void *optctx, const char *opt, const char *arg) |
|
{ |
|
enum AVPixelFormat 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 < AV_PIX_FMT_NB; pix_fmt++) { |
|
const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt]; |
|
if(!pix_desc->name) |
|
continue; |
|
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 show_layouts(void *optctx, const char *opt, const char *arg) |
|
{ |
|
int i = 0; |
|
uint64_t layout, j; |
|
const char *name, *descr; |
|
|
|
printf("Individual channels:\n" |
|
"NAME DESCRIPTION\n"); |
|
for (i = 0; i < 63; i++) { |
|
name = av_get_channel_name((uint64_t)1 << i); |
|
if (!name) |
|
continue; |
|
descr = av_get_channel_description((uint64_t)1 << i); |
|
printf("%-12s%s\n", name, descr); |
|
} |
|
printf("\nStandard channel layouts:\n" |
|
"NAME DECOMPOSITION\n"); |
|
for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) { |
|
if (name) { |
|
printf("%-12s", name); |
|
for (j = 1; j; j <<= 1) |
|
if ((layout & j)) |
|
printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j)); |
|
printf("\n"); |
|
} |
|
} |
|
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 FFmpeg, " |
|
"but no %s for it are available. FFmpeg 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 FFmpeg.\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); |
|
} |
|
|
|
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); |
|
} else { |
|
show_help_default(topic, par); |
|
} |
|
|
|
av_freep(&topic); |
|
return 0; |
|
} |
|
|
|
int read_yesno(void) |
|
{ |
|
int c = getchar(); |
|
int yesno = (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; |
|
} |
|
|
|
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; |
|
} |
|
|
|
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec) |
|
{ |
|
int ret = avformat_match_stream_specifier(s, st, spec); |
|
if (ret < 0) |
|
av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec); |
|
return ret; |
|
} |
|
|
|
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); |
|
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)) { |
|
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(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(1); |
|
} |
|
memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size); |
|
*size = new_size; |
|
return tmp; |
|
} |
|
return array; |
|
} |
|
|
|
static int alloc_buffer(FrameBuffer **pool, AVCodecContext *s, FrameBuffer **pbuf) |
|
{ |
|
FrameBuffer *buf = av_mallocz(sizeof(*buf)); |
|
int i, ret; |
|
const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1; |
|
int h_chroma_shift, v_chroma_shift; |
|
int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1 |
|
int w = s->width, h = s->height; |
|
|
|
if (!buf) |
|
return AVERROR(ENOMEM); |
|
|
|
avcodec_align_dimensions(s, &w, &h); |
|
|
|
if (!(s->flags & CODEC_FLAG_EMU_EDGE)) { |
|
w += 2*edge; |
|
h += 2*edge; |
|
} |
|
|
|
if ((ret = av_image_alloc(buf->base, buf->linesize, w, h, |
|
s->pix_fmt, 32)) < 0) { |
|
av_freep(&buf); |
|
av_log(s, AV_LOG_ERROR, "alloc_buffer: av_image_alloc() failed\n"); |
|
return ret; |
|
} |
|
/* XXX this shouldn't be needed, but some tests break without this line |
|
* those decoders are buggy and need to be fixed. |
|
* the following tests fail: |
|
* cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit |
|
*/ |
|
memset(buf->base[0], 128, ret); |
|
|
|
avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift); |
|
for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) { |
|
const int h_shift = i==0 ? 0 : h_chroma_shift; |
|
const int v_shift = i==0 ? 0 : v_chroma_shift; |
|
if ((s->flags & CODEC_FLAG_EMU_EDGE) || !buf->linesize[i] || !buf->base[i]) |
|
buf->data[i] = buf->base[i]; |
|
else |
|
buf->data[i] = buf->base[i] + |
|
FFALIGN((buf->linesize[i]*edge >> v_shift) + |
|
(pixel_size*edge >> h_shift), 32); |
|
} |
|
buf->w = s->width; |
|
buf->h = s->height; |
|
buf->pix_fmt = s->pix_fmt; |
|
buf->pool = pool; |
|
|
|
*pbuf = buf; |
|
return 0; |
|
} |
|
|
|
int codec_get_buffer(AVCodecContext *s, AVFrame *frame) |
|
{ |
|
FrameBuffer **pool = s->opaque; |
|
FrameBuffer *buf; |
|
int ret, i; |
|
|
|
if(av_image_check_size(s->width, s->height, 0, s) || s->pix_fmt<0) { |
|
av_log(s, AV_LOG_ERROR, "codec_get_buffer: image parameters invalid\n"); |
|
return -1; |
|
} |
|
|
|
if (!*pool && (ret = alloc_buffer(pool, s, pool)) < 0) |
|
return ret; |
|
|
|
buf = *pool; |
|
*pool = buf->next; |
|
buf->next = NULL; |
|
if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) { |
|
av_freep(&buf->base[0]); |
|
av_free(buf); |
|
if ((ret = alloc_buffer(pool, s, &buf)) < 0) |
|
return ret; |
|
} |
|
av_assert0(!buf->refcount); |
|
buf->refcount++; |
|
|
|
frame->opaque = buf; |
|
frame->type = FF_BUFFER_TYPE_USER; |
|
frame->extended_data = frame->data; |
|
frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE; |
|
frame->width = buf->w; |
|
frame->height = buf->h; |
|
frame->format = buf->pix_fmt; |
|
frame->sample_aspect_ratio = s->sample_aspect_ratio; |
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) { |
|
frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't |
|
frame->data[i] = buf->data[i]; |
|
frame->linesize[i] = buf->linesize[i]; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void unref_buffer(FrameBuffer *buf) |
|
{ |
|
FrameBuffer **pool = buf->pool; |
|
|
|
av_assert0(buf->refcount > 0); |
|
buf->refcount--; |
|
if (!buf->refcount) { |
|
FrameBuffer *tmp; |
|
for(tmp= *pool; tmp; tmp= tmp->next) |
|
av_assert1(tmp != buf); |
|
|
|
buf->next = *pool; |
|
*pool = buf; |
|
} |
|
} |
|
|
|
void codec_release_buffer(AVCodecContext *s, AVFrame *frame) |
|
{ |
|
FrameBuffer *buf = frame->opaque; |
|
int i; |
|
|
|
if(frame->type!=FF_BUFFER_TYPE_USER) { |
|
avcodec_default_release_buffer(s, frame); |
|
return; |
|
} |
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++) |
|
frame->data[i] = NULL; |
|
|
|
unref_buffer(buf); |
|
} |
|
|
|
void filter_release_buffer(AVFilterBuffer *fb) |
|
{ |
|
FrameBuffer *buf = fb->priv; |
|
av_free(fb); |
|
unref_buffer(buf); |
|
} |
|
|
|
void free_buffer_pool(FrameBuffer **pool) |
|
{ |
|
FrameBuffer *buf = *pool; |
|
while (buf) { |
|
*pool = buf->next; |
|
av_freep(&buf->base[0]); |
|
av_free(buf); |
|
buf = *pool; |
|
} |
|
}
|
|
|