/*
?*?Various?utilities?for?command?line?tools
?*?Copyright?（c）?2000-2003?Fabrice?Bellard
?*
?*?This?file?is?part?of?FFmpeg.
?*
?*?FFmpeg?is?free?software;?you?can?redistribute?it?and/or
?*?modify?it?under?the?terms?of?the?GNU?Lesser?General?Public
?*?License?as?published?by?the?Free?Software?Foundation;?either
?*?version?2.1?of?the?License?or?（at?your?option）?any?later?version.
?*
?*?FFmpeg?is?distributed?in?the?hope?that?it?will?be?useful
?*?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
?*?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the?GNU
?*?Lesser?General?Public?License?for?more?details.
?*
?*?You?should?have?received?a?copy?of?the?GNU?Lesser?General?Public
?*?License?along?with?FFmpeg;?if?not?write?to?the?Free?Software
?*?Foundation?Inc.?51?Franklin?Street?Fifth?Floor?Boston?MA?02110-1301?USA
?*/

#include?
#include?
#include?
#include?
#include?

/*?Include?only?the?enabled?headers?since?some?compilers?（namely?Sun
???Studio）?will?not?omit?unused?inline?functions?and?create?undefined
???references?to?libraries?that?are?not?being?built.?*/

#include?“config.h“
#include?“compat/va_copy.h“
#include?“libavformat/avformat.h“
#include?“libavfilter/avfilter.h“
#include?“libavdevice/avdevice.h“
#include?“libavresample/avresample.h“
#include?“libswscale/swscale.h“
#include?“libswresample/swresample.h“
#include?“libpostproc/postprocess.h“
#include?“libavutil/avassert.h“
#include?“libavutil/avstring.h“
#include?“libavutil/bprint.h“
#include?“libavutil/display.h“
#include?“libavutil/mathematics.h“
#include?“libavutil/imgutils.h“
#include?“libavutil/libm.h“
#include?“libavutil/parseutils.h“
#include?“libavutil/pixdesc.h“
#include?“libavutil/eval.h“
#include?“libavutil/dict.h“
#include?“libavutil/opt.h“
#include?“libavutil/cpu.h“
#include?“libavutil/ffversion.h“
#include?“cmdutils.h“
#if?CONFIG_NETWORK
#include?“libavformat/network.h“
#endif
#if?HAVE_SYS_RESOURCE_H
#include?
#include?
#endif
#if?HAVE_SETDLLDIRECTORY
#include?
#endif

static?int?init_report（const?char?*env）;

AVDictionary?*sws_dict;
AVDictionary?*swr_opts;
AVDictionary?*format_opts?*codec_opts?*resample_opts;

static?FILE?*report_file;
static?int?report_file_level?=?AV_LOG_DEBUG;
int?hide_banner?=?0;

void?init_opts（void）
{
????av_dict_set（&sws_dict?“flags“?“bicubic“?0）;
}

void?uninit_opts（void）
{
????av_dict_free（&swr_opts）;
????av_dict_free（&sws_dict）;
????av_dict_free（&format_opts）;
????av_dict_free（&codec_opts）;
????av_dict_free（&resample_opts）;
}

void?log_callback_help（void?*ptr?int?level?const?char?*fmt?va_list?vl）
{
????vfprintf（stdout?fmt?vl）;
}

static?void?log_callback_report（void?*ptr?int?level?const?char?*fmt?va_list?vl）
{
????va_list?vl2;
????char?line[1024];
????static?int?print_prefix?=?1;

????va_copy（vl2?vl）;
????av_log_default_callback（ptr?level?fmt?vl）;
????av_log_format_line（ptr?level?fmt?vl2?line?sizeof（line）?&print_pre