| /* |
| * 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 <string.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <math.h> |
| |
| /* 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 "libavformat/avformat.h" |
| #include "libavfilter/avfilter.h" |
| #include "libavdevice/avdevice.h" |
| #include "libswscale/swscale.h" |
| #include "libpostproc/postprocess.h" |
| #include "libavutil/avstring.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavcodec/opt.h" |
| #include "cmdutils.h" |
| #include "version.h" |
| #if CONFIG_NETWORK |
| #include "libavformat/network.h" |
| #endif |
| #if HAVE_SYS_RESOURCE_H |
| #include <sys/resource.h> |
| #endif |
| |
| const char **opt_names; |
| static int opt_name_count; |
| AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB]; |
| AVFormatContext *avformat_opts; |
| struct SwsContext *sws_opts; |
| |
| const int this_year = 2010; |
| |
| double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max) |
| { |
| char *tail; |
| const char *error; |
| double d = strtod(numstr, &tail); |
| if (*tail) |
| error= "Expected number for %s but found: %s\n"; |
| else if (d < min || d > max) |
| error= "The value for %s was %s which is not within %f - %f\n"; |
| else if(type == OPT_INT64 && (int64_t)d != d) |
| error= "Expected int64 for %s but found %s\n"; |
| else |
| return d; |
| fprintf(stderr, error, context, numstr, min, max); |
| exit(1); |
| } |
| |
| int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration) |
| { |
| int64_t us = parse_date(timestr, is_duration); |
| if (us == INT64_MIN) { |
| fprintf(stderr, "Invalid %s specification for %s: %s\n", |
| is_duration ? "duration" : "date", context, timestr); |
| exit(1); |
| } |
| return us; |
| } |
| |
| void show_help_options(const OptionDef *options, const char *msg, int mask, int value) |
| { |
| const OptionDef *po; |
| int first; |
| |
| first = 1; |
| for(po = options; po->name != NULL; po++) { |
| char buf[64]; |
| if ((po->flags & mask) == value) { |
| if (first) { |
| printf("%s", msg); |
| first = 0; |
| } |
| av_strlcpy(buf, po->name, sizeof(buf)); |
| if (po->flags & HAS_ARG) { |
| av_strlcat(buf, " ", sizeof(buf)); |
| av_strlcat(buf, po->argname, sizeof(buf)); |
| } |
| printf("-%-17s %s\n", buf, po->help); |
| } |
| } |
| } |
| |
| static const OptionDef* find_option(const OptionDef *po, const char *name){ |
| while (po->name != NULL) { |
| if (!strcmp(name, po->name)) |
| break; |
| po++; |
| } |
| return po; |
| } |
| |
| void parse_options(int argc, char **argv, const OptionDef *options, |
| void (* parse_arg_function)(const char*)) |
| { |
| const char *opt, *arg; |
| int optindex, handleoptions=1; |
| const OptionDef *po; |
| |
| /* parse options */ |
| optindex = 1; |
| while (optindex < argc) { |
| opt = argv[optindex++]; |
| |
| if (handleoptions && opt[0] == '-' && opt[1] != '\0') { |
| int bool_val = 1; |
| if (opt[1] == '-' && opt[2] == '\0') { |
| handleoptions = 0; |
| continue; |
| } |
| opt++; |
| po= find_option(options, opt); |
| if (!po->name && opt[0] == 'n' && opt[1] == 'o') { |
| /* handle 'no' bool option */ |
| po = find_option(options, opt + 2); |
| if (!(po->name && (po->flags & OPT_BOOL))) |
| goto unknown_opt; |
| bool_val = 0; |
| } |
| if (!po->name) |
| po= find_option(options, "default"); |
| if (!po->name) { |
| unknown_opt: |
| fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt); |
| exit(1); |
| } |
| arg = NULL; |
| if (po->flags & HAS_ARG) { |
| arg = argv[optindex++]; |
| if (!arg) { |
| fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt); |
| exit(1); |
| } |
| } |
| if (po->flags & OPT_STRING) { |
| char *str; |
| str = av_strdup(arg); |
| *po->u.str_arg = str; |
| } else if (po->flags & OPT_BOOL) { |
| *po->u.int_arg = bool_val; |
| } else if (po->flags & OPT_INT) { |
| *po->u.int_arg = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX); |
| } else if (po->flags & OPT_INT64) { |
| *po->u.int64_arg = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX); |
| } else if (po->flags & OPT_FLOAT) { |
| *po->u.float_arg = parse_number_or_die(opt, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0); |
| } else if (po->flags & OPT_FUNC2) { |
| if (po->u.func2_arg(opt, arg) < 0) { |
| fprintf(stderr, "%s: failed to set value '%s' for option '%s'\n", argv[0], arg, opt); |
| exit(1); |
| } |
| } else { |
| po->u.func_arg(arg); |
| } |
| if(po->flags & OPT_EXIT) |
| exit(0); |
| } else { |
| if (parse_arg_function) |
| parse_arg_function(opt); |
| } |
| } |
| } |
| |
| int opt_default(const char *opt, const char *arg){ |
| int type; |
| int ret= 0; |
| const AVOption *o= NULL; |
| int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0}; |
| |
| for(type=0; type<AVMEDIA_TYPE_NB && ret>= 0; type++){ |
| const AVOption *o2 = av_find_opt(avcodec_opts[0], opt, NULL, opt_types[type], opt_types[type]); |
| if(o2) |
| ret = av_set_string3(avcodec_opts[type], opt, arg, 1, &o); |
| } |
| if(!o) |
| ret = av_set_string3(avformat_opts, opt, arg, 1, &o); |
| if(!o && sws_opts) |
| ret = av_set_string3(sws_opts, opt, arg, 1, &o); |
| if(!o){ |
| if(opt[0] == 'a') |
| ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_AUDIO], opt+1, arg, 1, &o); |
| else if(opt[0] == 'v') |
| ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_VIDEO], opt+1, arg, 1, &o); |
| else if(opt[0] == 's') |
| ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], opt+1, arg, 1, &o); |
| } |
| if (o && ret < 0) { |
| fprintf(stderr, "Invalid value '%s' for option '%s'\n", arg, opt); |
| exit(1); |
| } |
| if (!o) { |
| fprintf(stderr, "Unrecognized option '%s'\n", opt); |
| exit(1); |
| } |
| |
| // av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avcodec_opts, opt, NULL), (int)av_get_int(avcodec_opts, opt, NULL)); |
| |
| //FIXME we should always use avcodec_opts, ... for storing options so there will not be any need to keep track of what i set over this |
| opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1)); |
| opt_names[opt_name_count++]= o->name; |
| |
| if(avcodec_opts[0]->debug || avformat_opts->debug) |
| av_log_set_level(AV_LOG_DEBUG); |
| return 0; |
| } |
| |
| int opt_loglevel(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) { |
| fprintf(stderr, "Invalid loglevel \"%s\". " |
| "Possible levels are numbers or:\n", arg); |
| for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) |
| fprintf(stderr, "\"%s\"\n", log_levels[i].name); |
| exit(1); |
| } |
| av_log_set_level(level); |
| return 0; |
| } |
| |
| int opt_timelimit(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 |
| fprintf(stderr, "Warning: -%s not implemented on this OS\n", opt); |
| #endif |
| return 0; |
| } |
| |
| void set_context_opts(void *ctx, void *opts_ctx, int flags) |
| { |
| int i; |
| for(i=0; i<opt_name_count; i++){ |
| char buf[256]; |
| const AVOption *opt; |
| const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf)); |
| /* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */ |
| if(str && ((opt->flags & flags) == flags)) |
| av_set_string3(ctx, opt_names[i], str, 1, NULL); |
| } |
| } |
| |
| 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)); |
| fprintf(stderr, "%s: %s\n", filename, errbuf_ptr); |
| } |
| |
| #define PRINT_LIB_VERSION(outstream,libname,LIBNAME,indent) \ |
| if (CONFIG_##LIBNAME) { \ |
| unsigned int version = libname##_version(); \ |
| fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", \ |
| indent? " " : "", #libname, \ |
| LIB##LIBNAME##_VERSION_MAJOR, \ |
| LIB##LIBNAME##_VERSION_MINOR, \ |
| LIB##LIBNAME##_VERSION_MICRO, \ |
| version >> 16, version >> 8 & 0xff, version & 0xff); \ |
| } |
| |
| static void print_all_lib_versions(FILE* outstream, int indent) |
| { |
| PRINT_LIB_VERSION(outstream, avutil, AVUTIL, indent); |
| PRINT_LIB_VERSION(outstream, avcodec, AVCODEC, indent); |
| PRINT_LIB_VERSION(outstream, avformat, AVFORMAT, indent); |
| PRINT_LIB_VERSION(outstream, avdevice, AVDEVICE, indent); |
| PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent); |
| PRINT_LIB_VERSION(outstream, swscale, SWSCALE, indent); |
| PRINT_LIB_VERSION(outstream, postproc, POSTPROC, indent); |
| } |
| |
| static void maybe_print_config(const char *lib, const char *cfg) |
| { |
| static int warned_cfg; |
| |
| if (strcmp(FFMPEG_CONFIGURATION, cfg)) { |
| if (!warned_cfg) { |
| fprintf(stderr, " WARNING: library configuration mismatch\n"); |
| warned_cfg = 1; |
| } |
| fprintf(stderr, " %-11s configuration: %s\n", lib, cfg); |
| } |
| } |
| |
| #define PRINT_LIB_CONFIG(lib, tag, cfg) do { \ |
| if (CONFIG_##lib) \ |
| maybe_print_config(tag, cfg); \ |
| } while (0) |
| |
| void show_banner(void) |
| { |
| fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d the FFmpeg developers\n", |
| program_name, program_birth_year, this_year); |
| fprintf(stderr, " built on %s %s with %s %s\n", |
| __DATE__, __TIME__, CC_TYPE, CC_VERSION); |
| fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n"); |
| PRINT_LIB_CONFIG(AVUTIL, "libavutil", avutil_configuration()); |
| PRINT_LIB_CONFIG(AVCODEC, "libavcodec", avcodec_configuration()); |
| PRINT_LIB_CONFIG(AVFORMAT, "libavformat", avformat_configuration()); |
| PRINT_LIB_CONFIG(AVDEVICE, "libavdevice", avdevice_configuration()); |
| PRINT_LIB_CONFIG(AVFILTER, "libavfilter", avfilter_configuration()); |
| PRINT_LIB_CONFIG(SWSCALE, "libswscale", swscale_configuration()); |
| PRINT_LIB_CONFIG(POSTPROC, "libpostproc", postproc_configuration()); |
| print_all_lib_versions(stderr, 1); |
| } |
| |
| void show_version(void) { |
| printf("%s " FFMPEG_VERSION "\n", program_name); |
| print_all_lib_versions(stdout, 0); |
| } |
| |
| void show_license(void) |
| { |
| 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 |
| ); |
| } |
| |
| void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts) |
| { |
| int i; |
| char fmt_str[128]; |
| for (i=-1; i < nb_fmts; i++) { |
| get_fmt_string (fmt_str, sizeof(fmt_str), i); |
| fprintf(stdout, "%s\n", fmt_str); |
| } |
| } |
| |
| void show_formats(void) |
| { |
| 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:" "); |
| } |
| } |
| |
| void show_codecs(void) |
| { |
| 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"); |
| } |
| |
| void show_bsfs(void) |
| { |
| AVBitStreamFilter *bsf=NULL; |
| |
| printf("Bitstream filters:\n"); |
| while((bsf = av_bitstream_filter_next(bsf))) |
| printf("%s\n", bsf->name); |
| printf("\n"); |
| } |
| |
| void show_protocols(void) |
| { |
| URLProtocol *up=NULL; |
| |
| printf("Supported file protocols:\n"); |
| while((up = av_protocol_next(up))) |
| printf("%s\n", up->name); |
| } |
| |
| void show_filters(void) |
| { |
| 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 |
| } |
| |
| void show_pix_fmts(void) |
| { |
| 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)); |
| } |
| } |
| |
| 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; |
| } |
