ffmpeg / cmdutils.c @ f6c7375a
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/*
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* Various utilities for command line tools
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* Copyright (c) 2000-2003 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <string.h> |
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#include <stdlib.h> |
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#include <errno.h> |
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#include <math.h> |
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/* Include only the enabled headers since some compilers (namely, Sun
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Studio) will not omit unused inline functions and create undefined
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references to libraries that are not being built. */
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#include "config.h" |
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#include "libavformat/avformat.h" |
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#include "libavfilter/avfilter.h" |
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#include "libavdevice/avdevice.h" |
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#include "libswscale/swscale.h" |
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#include "libpostproc/postprocess.h" |
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#include "libavutil/avstring.h" |
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#include "libavutil/parseutils.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/eval.h" |
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#include "libavcodec/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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const char **opt_names; |
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const char **opt_values; |
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static int opt_name_count; |
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AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB]; |
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AVFormatContext *avformat_opts; |
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struct SwsContext *sws_opts;
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static const int this_year = 2011; |
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void init_opts(void) |
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{ |
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int i;
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for (i = 0; i < AVMEDIA_TYPE_NB; i++) |
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avcodec_opts[i] = avcodec_alloc_context2(i); |
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avformat_opts = avformat_alloc_context(); |
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#if CONFIG_SWSCALE
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sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC, NULL, NULL, NULL); |
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#endif
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} |
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void uninit_opts(void) |
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{ |
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int i;
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for (i = 0; i < AVMEDIA_TYPE_NB; i++) |
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av_freep(&avcodec_opts[i]); |
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av_freep(&avformat_opts->key); |
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av_freep(&avformat_opts); |
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#if CONFIG_SWSCALE
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av_freep(&sws_opts); |
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#endif
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for (i = 0; i < opt_name_count; i++) { |
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//opt_values are only stored for codec-specific options in which case
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//both the name and value are dup'd
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if (opt_values[i]) {
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av_freep(&opt_names[i]); |
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av_freep(&opt_values[i]); |
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} |
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} |
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av_freep(&opt_names); |
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av_freep(&opt_values); |
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} |
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void log_callback_help(void* ptr, int level, const char* fmt, va_list vl) |
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{ |
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vfprintf(stdout, fmt, vl); |
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} |
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double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max) |
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{ |
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char *tail;
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const char *error; |
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double d = av_strtod(numstr, &tail);
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if (*tail)
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error= "Expected number for %s but found: %s\n";
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else if (d < min || d > max) |
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error= "The value for %s was %s which is not within %f - %f\n";
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else if(type == OPT_INT64 && (int64_t)d != d) |
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error= "Expected int64 for %s but found %s\n";
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else
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return d;
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fprintf(stderr, error, context, numstr, min, max); |
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exit(1);
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} |
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int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration) |
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{ |
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int64_t us; |
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if (av_parse_time(&us, timestr, is_duration) < 0) { |
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fprintf(stderr, "Invalid %s specification for %s: %s\n",
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is_duration ? "duration" : "date", context, timestr); |
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exit(1);
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} |
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return us;
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} |
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void show_help_options(const OptionDef *options, const char *msg, int mask, int value) |
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{ |
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const OptionDef *po;
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int first;
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first = 1;
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for(po = options; po->name != NULL; po++) { |
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char buf[64]; |
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if ((po->flags & mask) == value) {
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if (first) {
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printf("%s", msg);
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first = 0;
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} |
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av_strlcpy(buf, po->name, sizeof(buf));
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if (po->flags & HAS_ARG) {
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av_strlcat(buf, " ", sizeof(buf)); |
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av_strlcat(buf, po->argname, sizeof(buf));
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} |
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printf("-%-17s %s\n", buf, po->help);
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} |
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} |
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} |
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static const OptionDef* find_option(const OptionDef *po, const char *name){ |
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while (po->name != NULL) { |
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if (!strcmp(name, po->name))
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break;
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po++; |
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} |
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return po;
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} |
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void parse_options(int argc, char **argv, const OptionDef *options, |
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void (* parse_arg_function)(const char*)) |
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{ |
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const char *opt, *arg; |
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int optindex, handleoptions=1; |
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const OptionDef *po;
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/* parse options */
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optindex = 1;
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while (optindex < argc) {
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opt = argv[optindex++]; |
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if (handleoptions && opt[0] == '-' && opt[1] != '\0') { |
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int bool_val = 1; |
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if (opt[1] == '-' && opt[2] == '\0') { |
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handleoptions = 0;
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continue;
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} |
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opt++; |
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po= find_option(options, opt); |
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if (!po->name && opt[0] == 'n' && opt[1] == 'o') { |
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/* handle 'no' bool option */
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po = find_option(options, opt + 2);
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if (!(po->name && (po->flags & OPT_BOOL)))
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goto unknown_opt;
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bool_val = 0;
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} |
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if (!po->name)
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po= find_option(options, "default");
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if (!po->name) {
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unknown_opt:
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fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt); |
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exit(1);
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} |
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arg = NULL;
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if (po->flags & HAS_ARG) {
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arg = argv[optindex++]; |
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if (!arg) {
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fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt); |
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exit(1);
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} |
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} |
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if (po->flags & OPT_STRING) {
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char *str;
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str = av_strdup(arg); |
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*po->u.str_arg = str; |
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} else if (po->flags & OPT_BOOL) { |
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*po->u.int_arg = bool_val; |
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} else if (po->flags & OPT_INT) { |
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*po->u.int_arg = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX); |
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} else if (po->flags & OPT_INT64) { |
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*po->u.int64_arg = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX); |
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} else if (po->flags & OPT_FLOAT) { |
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*po->u.float_arg = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY); |
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} else if (po->flags & OPT_FUNC2) { |
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if (po->u.func2_arg(opt, arg) < 0) { |
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fprintf(stderr, "%s: failed to set value '%s' for option '%s'\n", argv[0], arg, opt); |
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exit(1);
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} |
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} else {
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po->u.func_arg(arg); |
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} |
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if(po->flags & OPT_EXIT)
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exit(0);
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} else {
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if (parse_arg_function)
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parse_arg_function(opt); |
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} |
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} |
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} |
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int opt_default(const char *opt, const char *arg){ |
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int type;
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int ret= 0; |
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const AVOption *o= NULL; |
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int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0}; |
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for(type=0; *avcodec_opts && type<AVMEDIA_TYPE_NB && ret>= 0; type++){ |
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const AVOption *o2 = av_find_opt(avcodec_opts[0], opt, NULL, opt_types[type], opt_types[type]); |
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if(o2)
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ret = av_set_string3(avcodec_opts[type], opt, arg, 1, &o);
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} |
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if(!o && avformat_opts)
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ret = av_set_string3(avformat_opts, opt, arg, 1, &o);
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if(!o && sws_opts)
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ret = av_set_string3(sws_opts, opt, arg, 1, &o);
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if(!o){
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if (opt[0] == 'a' && avcodec_opts[AVMEDIA_TYPE_AUDIO]) |
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ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_AUDIO], opt+1, arg, 1, &o); |
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else if(opt[0] == 'v' && avcodec_opts[AVMEDIA_TYPE_VIDEO]) |
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ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_VIDEO], opt+1, arg, 1, &o); |
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else if(opt[0] == 's' && avcodec_opts[AVMEDIA_TYPE_SUBTITLE]) |
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ret = av_set_string3(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], opt+1, arg, 1, &o); |
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} |
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if (o && ret < 0) { |
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fprintf(stderr, "Invalid value '%s' for option '%s'\n", arg, opt);
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exit(1);
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} |
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if (!o) {
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AVCodec *p = NULL;
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AVOutputFormat *oformat = NULL;
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while ((p=av_codec_next(p))){
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AVClass *c= p->priv_class; |
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if(c && av_find_opt(&c, opt, NULL, 0, 0)) |
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break;
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} |
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if (!p) {
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while ((oformat = av_oformat_next(oformat))) {
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const AVClass *c = oformat->priv_class;
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if (c && av_find_opt(&c, opt, NULL, 0, 0)) |
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break;
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} |
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} |
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if(!p && !oformat){
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fprintf(stderr, "Unrecognized option '%s'\n", opt);
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exit(1);
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} |
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} |
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// 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));
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//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
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opt_values= av_realloc(opt_values, sizeof(void*)*(opt_name_count+1)); |
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opt_values[opt_name_count]= o ? NULL : av_strdup(arg);
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opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1)); |
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opt_names[opt_name_count++]= o ? o->name : av_strdup(opt); |
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if ((*avcodec_opts && avcodec_opts[0]->debug) || (avformat_opts && avformat_opts->debug)) |
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av_log_set_level(AV_LOG_DEBUG); |
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return 0; |
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} |
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int opt_loglevel(const char *opt, const char *arg) |
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{ |
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const struct { const char *name; int level; } log_levels[] = { |
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{ "quiet" , AV_LOG_QUIET },
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{ "panic" , AV_LOG_PANIC },
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{ "fatal" , AV_LOG_FATAL },
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{ "error" , AV_LOG_ERROR },
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{ "warning", AV_LOG_WARNING },
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{ "info" , AV_LOG_INFO },
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{ "verbose", AV_LOG_VERBOSE },
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{ "debug" , AV_LOG_DEBUG },
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}; |
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char *tail;
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int level;
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) { |
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if (!strcmp(log_levels[i].name, arg)) {
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av_log_set_level(log_levels[i].level); |
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return 0; |
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} |
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} |
312 |
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level = strtol(arg, &tail, 10);
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if (*tail) {
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fprintf(stderr, "Invalid loglevel \"%s\". "
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"Possible levels are numbers or:\n", arg);
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for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) |
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fprintf(stderr, "\"%s\"\n", log_levels[i].name);
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exit(1);
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} |
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av_log_set_level(level); |
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return 0; |
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} |
324 |
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int opt_timelimit(const char *opt, const char *arg) |
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{ |
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#if HAVE_SETRLIMIT
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int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); |
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struct rlimit rl = { lim, lim + 1 }; |
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if (setrlimit(RLIMIT_CPU, &rl))
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perror("setrlimit");
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#else
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fprintf(stderr, "Warning: -%s not implemented on this OS\n", opt);
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#endif
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return 0; |
336 |
} |
337 |
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void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec) |
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{ |
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int i;
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void *priv_ctx=NULL; |
342 |
if(!strcmp("AVCodecContext", (*(AVClass**)ctx)->class_name)){ |
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AVCodecContext *avctx= ctx; |
344 |
if(codec && codec->priv_class && avctx->priv_data){
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priv_ctx= avctx->priv_data; |
346 |
} |
347 |
} else if (!strcmp("AVFormatContext", (*(AVClass**)ctx)->class_name)) { |
348 |
AVFormatContext *avctx = ctx; |
349 |
if (avctx->oformat && avctx->oformat->priv_class) {
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priv_ctx = avctx->priv_data; |
351 |
} |
352 |
} |
353 |
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for(i=0; i<opt_name_count; i++){ |
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char buf[256]; |
356 |
const AVOption *opt;
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const char *str= av_get_string(opts_ctx, opt_names[i], &opt, buf, sizeof(buf)); |
358 |
/* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
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if(str && ((opt->flags & flags) == flags))
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av_set_string3(ctx, opt_names[i], str, 1, NULL); |
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/* We need to use a differnt system to pass options to the private context because
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it is not known which codec and thus context kind that will be when parsing options
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we thus use opt_values directly instead of opts_ctx */
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if(!str && priv_ctx && av_get_string(priv_ctx, opt_names[i], &opt, buf, sizeof(buf))){ |
365 |
av_set_string3(priv_ctx, opt_names[i], opt_values[i], 1, NULL); |
366 |
} |
367 |
} |
368 |
} |
369 |
|
370 |
void print_error(const char *filename, int err) |
371 |
{ |
372 |
char errbuf[128]; |
373 |
const char *errbuf_ptr = errbuf; |
374 |
|
375 |
if (av_strerror(err, errbuf, sizeof(errbuf)) < 0) |
376 |
errbuf_ptr = strerror(AVUNERROR(err)); |
377 |
fprintf(stderr, "%s: %s\n", filename, errbuf_ptr);
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378 |
} |
379 |
|
380 |
static int warned_cfg = 0; |
381 |
|
382 |
#define INDENT 1 |
383 |
#define SHOW_VERSION 2 |
384 |
#define SHOW_CONFIG 4 |
385 |
|
386 |
#define PRINT_LIB_INFO(outstream,libname,LIBNAME,flags) \
|
387 |
if (CONFIG_##LIBNAME) { \ |
388 |
const char *indent = flags & INDENT? " " : ""; \ |
389 |
if (flags & SHOW_VERSION) { \
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390 |
unsigned int version = libname##_version(); \ |
391 |
fprintf(outstream, "%slib%-9s %2d.%3d.%2d / %2d.%3d.%2d\n", \
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392 |
indent, #libname, \
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LIB##LIBNAME##_VERSION_MAJOR, \ |
394 |
LIB##LIBNAME##_VERSION_MINOR, \ |
395 |
LIB##LIBNAME##_VERSION_MICRO, \ |
396 |
version >> 16, version >> 8 & 0xff, version & 0xff); \ |
397 |
} \ |
398 |
if (flags & SHOW_CONFIG) { \
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399 |
const char *cfg = libname##_configuration(); \ |
400 |
if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
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401 |
if (!warned_cfg) { \
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402 |
fprintf(outstream, \ |
403 |
"%sWARNING: library configuration mismatch\n", \
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404 |
indent); \ |
405 |
warned_cfg = 1; \
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406 |
} \ |
407 |
fprintf(stderr, "%s%-11s configuration: %s\n", \
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408 |
indent, #libname, cfg); \
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409 |
} \ |
410 |
} \ |
411 |
} \ |
412 |
|
413 |
static void print_all_libs_info(FILE* outstream, int flags) |
414 |
{ |
415 |
PRINT_LIB_INFO(outstream, avutil, AVUTIL, flags); |
416 |
PRINT_LIB_INFO(outstream, avcodec, AVCODEC, flags); |
417 |
PRINT_LIB_INFO(outstream, avformat, AVFORMAT, flags); |
418 |
PRINT_LIB_INFO(outstream, avdevice, AVDEVICE, flags); |
419 |
PRINT_LIB_INFO(outstream, avfilter, AVFILTER, flags); |
420 |
PRINT_LIB_INFO(outstream, swscale, SWSCALE, flags); |
421 |
PRINT_LIB_INFO(outstream, postproc, POSTPROC, flags); |
422 |
} |
423 |
|
424 |
void show_banner(void) |
425 |
{ |
426 |
fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d the FFmpeg developers\n", |
427 |
program_name, program_birth_year, this_year); |
428 |
fprintf(stderr, " built on %s %s with %s %s\n",
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429 |
__DATE__, __TIME__, CC_TYPE, CC_VERSION); |
430 |
fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n"); |
431 |
print_all_libs_info(stderr, INDENT|SHOW_CONFIG); |
432 |
print_all_libs_info(stderr, INDENT|SHOW_VERSION); |
433 |
} |
434 |
|
435 |
void show_version(void) { |
436 |
printf("%s " FFMPEG_VERSION "\n", program_name); |
437 |
print_all_libs_info(stdout, SHOW_VERSION); |
438 |
} |
439 |
|
440 |
void show_license(void) |
441 |
{ |
442 |
printf( |
443 |
#if CONFIG_NONFREE
|
444 |
"This version of %s has nonfree parts compiled in.\n"
|
445 |
"Therefore it is not legally redistributable.\n",
|
446 |
program_name |
447 |
#elif CONFIG_GPLV3
|
448 |
"%s is free software; you can redistribute it and/or modify\n"
|
449 |
"it under the terms of the GNU General Public License as published by\n"
|
450 |
"the Free Software Foundation; either version 3 of the License, or\n"
|
451 |
"(at your option) any later version.\n"
|
452 |
"\n"
|
453 |
"%s is distributed in the hope that it will be useful,\n"
|
454 |
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
455 |
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
|
456 |
"GNU General Public License for more details.\n"
|
457 |
"\n"
|
458 |
"You should have received a copy of the GNU General Public License\n"
|
459 |
"along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
|
460 |
program_name, program_name, program_name |
461 |
#elif CONFIG_GPL
|
462 |
"%s is free software; you can redistribute it and/or modify\n"
|
463 |
"it under the terms of the GNU General Public License as published by\n"
|
464 |
"the Free Software Foundation; either version 2 of the License, or\n"
|
465 |
"(at your option) any later version.\n"
|
466 |
"\n"
|
467 |
"%s is distributed in the hope that it will be useful,\n"
|
468 |
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
469 |
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
|
470 |
"GNU General Public License for more details.\n"
|
471 |
"\n"
|
472 |
"You should have received a copy of the GNU General Public License\n"
|
473 |
"along with %s; if not, write to the Free Software\n"
|
474 |
"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
|
475 |
program_name, program_name, program_name |
476 |
#elif CONFIG_LGPLV3
|
477 |
"%s is free software; you can redistribute it and/or modify\n"
|
478 |
"it under the terms of the GNU Lesser General Public License as published by\n"
|
479 |
"the Free Software Foundation; either version 3 of the License, or\n"
|
480 |
"(at your option) any later version.\n"
|
481 |
"\n"
|
482 |
"%s is distributed in the hope that it will be useful,\n"
|
483 |
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
484 |
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
|
485 |
"GNU Lesser General Public License for more details.\n"
|
486 |
"\n"
|
487 |
"You should have received a copy of the GNU Lesser General Public License\n"
|
488 |
"along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
|
489 |
program_name, program_name, program_name |
490 |
#else
|
491 |
"%s is free software; you can redistribute it and/or\n"
|
492 |
"modify it under the terms of the GNU Lesser General Public\n"
|
493 |
"License as published by the Free Software Foundation; either\n"
|
494 |
"version 2.1 of the License, or (at your option) any later version.\n"
|
495 |
"\n"
|
496 |
"%s is distributed in the hope that it will be useful,\n"
|
497 |
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
|
498 |
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
|
499 |
"Lesser General Public License for more details.\n"
|
500 |
"\n"
|
501 |
"You should have received a copy of the GNU Lesser General Public\n"
|
502 |
"License along with %s; if not, write to the Free Software\n"
|
503 |
"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
|
504 |
program_name, program_name, program_name |
505 |
#endif
|
506 |
); |
507 |
} |
508 |
|
509 |
void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts) |
510 |
{ |
511 |
int i;
|
512 |
char fmt_str[128]; |
513 |
for (i=-1; i < nb_fmts; i++) { |
514 |
get_fmt_string (fmt_str, sizeof(fmt_str), i);
|
515 |
fprintf(stdout, "%s\n", fmt_str);
|
516 |
} |
517 |
} |
518 |
|
519 |
void show_formats(void) |
520 |
{ |
521 |
AVInputFormat *ifmt=NULL;
|
522 |
AVOutputFormat *ofmt=NULL;
|
523 |
const char *last_name; |
524 |
|
525 |
printf( |
526 |
"File formats:\n"
|
527 |
" D. = Demuxing supported\n"
|
528 |
" .E = Muxing supported\n"
|
529 |
" --\n");
|
530 |
last_name= "000";
|
531 |
for(;;){
|
532 |
int decode=0; |
533 |
int encode=0; |
534 |
const char *name=NULL; |
535 |
const char *long_name=NULL; |
536 |
|
537 |
while((ofmt= av_oformat_next(ofmt))) {
|
538 |
if((name == NULL || strcmp(ofmt->name, name)<0) && |
539 |
strcmp(ofmt->name, last_name)>0){
|
540 |
name= ofmt->name; |
541 |
long_name= ofmt->long_name; |
542 |
encode=1;
|
543 |
} |
544 |
} |
545 |
while((ifmt= av_iformat_next(ifmt))) {
|
546 |
if((name == NULL || strcmp(ifmt->name, name)<0) && |
547 |
strcmp(ifmt->name, last_name)>0){
|
548 |
name= ifmt->name; |
549 |
long_name= ifmt->long_name; |
550 |
encode=0;
|
551 |
} |
552 |
if(name && strcmp(ifmt->name, name)==0) |
553 |
decode=1;
|
554 |
} |
555 |
if(name==NULL) |
556 |
break;
|
557 |
last_name= name; |
558 |
|
559 |
printf( |
560 |
" %s%s %-15s %s\n",
|
561 |
decode ? "D":" ", |
562 |
encode ? "E":" ", |
563 |
name, |
564 |
long_name ? long_name:" ");
|
565 |
} |
566 |
} |
567 |
|
568 |
void show_codecs(void) |
569 |
{ |
570 |
AVCodec *p=NULL, *p2;
|
571 |
const char *last_name; |
572 |
printf( |
573 |
"Codecs:\n"
|
574 |
" D..... = Decoding supported\n"
|
575 |
" .E.... = Encoding supported\n"
|
576 |
" ..V... = Video codec\n"
|
577 |
" ..A... = Audio codec\n"
|
578 |
" ..S... = Subtitle codec\n"
|
579 |
" ...S.. = Supports draw_horiz_band\n"
|
580 |
" ....D. = Supports direct rendering method 1\n"
|
581 |
" .....T = Supports weird frame truncation\n"
|
582 |
" ------\n");
|
583 |
last_name= "000";
|
584 |
for(;;){
|
585 |
int decode=0; |
586 |
int encode=0; |
587 |
int cap=0; |
588 |
const char *type_str; |
589 |
|
590 |
p2=NULL;
|
591 |
while((p= av_codec_next(p))) {
|
592 |
if((p2==NULL || strcmp(p->name, p2->name)<0) && |
593 |
strcmp(p->name, last_name)>0){
|
594 |
p2= p; |
595 |
decode= encode= cap=0;
|
596 |
} |
597 |
if(p2 && strcmp(p->name, p2->name)==0){ |
598 |
if(p->decode) decode=1; |
599 |
if(p->encode) encode=1; |
600 |
cap |= p->capabilities; |
601 |
} |
602 |
} |
603 |
if(p2==NULL) |
604 |
break;
|
605 |
last_name= p2->name; |
606 |
|
607 |
switch(p2->type) {
|
608 |
case AVMEDIA_TYPE_VIDEO:
|
609 |
type_str = "V";
|
610 |
break;
|
611 |
case AVMEDIA_TYPE_AUDIO:
|
612 |
type_str = "A";
|
613 |
break;
|
614 |
case AVMEDIA_TYPE_SUBTITLE:
|
615 |
type_str = "S";
|
616 |
break;
|
617 |
default:
|
618 |
type_str = "?";
|
619 |
break;
|
620 |
} |
621 |
printf( |
622 |
" %s%s%s%s%s%s %-15s %s",
|
623 |
decode ? "D": (/*p2->decoder ? "d":*/" "), |
624 |
encode ? "E":" ", |
625 |
type_str, |
626 |
cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ", |
627 |
cap & CODEC_CAP_DR1 ? "D":" ", |
628 |
cap & CODEC_CAP_TRUNCATED ? "T":" ", |
629 |
p2->name, |
630 |
p2->long_name ? p2->long_name : "");
|
631 |
/* if(p2->decoder && decode==0)
|
632 |
printf(" use %s for decoding", p2->decoder->name);*/
|
633 |
printf("\n");
|
634 |
} |
635 |
printf("\n");
|
636 |
printf( |
637 |
"Note, the names of encoders and decoders do not always match, so there are\n"
|
638 |
"several cases where the above table shows encoder only or decoder only entries\n"
|
639 |
"even though both encoding and decoding are supported. For example, the h263\n"
|
640 |
"decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
|
641 |
"worse.\n");
|
642 |
} |
643 |
|
644 |
void show_bsfs(void) |
645 |
{ |
646 |
AVBitStreamFilter *bsf=NULL;
|
647 |
|
648 |
printf("Bitstream filters:\n");
|
649 |
while((bsf = av_bitstream_filter_next(bsf)))
|
650 |
printf("%s\n", bsf->name);
|
651 |
printf("\n");
|
652 |
} |
653 |
|
654 |
void show_protocols(void) |
655 |
{ |
656 |
URLProtocol *up=NULL;
|
657 |
|
658 |
printf("Supported file protocols:\n"
|
659 |
"I.. = Input supported\n"
|
660 |
".O. = Output supported\n"
|
661 |
"..S = Seek supported\n"
|
662 |
"FLAGS NAME\n"
|
663 |
"----- \n");
|
664 |
while((up = av_protocol_next(up)))
|
665 |
printf("%c%c%c %s\n",
|
666 |
up->url_read ? 'I' : '.', |
667 |
up->url_write ? 'O' : '.', |
668 |
up->url_seek ? 'S' : '.', |
669 |
up->name); |
670 |
} |
671 |
|
672 |
void show_filters(void) |
673 |
{ |
674 |
AVFilter av_unused(**filter) = NULL;
|
675 |
|
676 |
printf("Filters:\n");
|
677 |
#if CONFIG_AVFILTER
|
678 |
while ((filter = av_filter_next(filter)) && *filter)
|
679 |
printf("%-16s %s\n", (*filter)->name, (*filter)->description);
|
680 |
#endif
|
681 |
} |
682 |
|
683 |
void show_pix_fmts(void) |
684 |
{ |
685 |
enum PixelFormat pix_fmt;
|
686 |
|
687 |
printf( |
688 |
"Pixel formats:\n"
|
689 |
"I.... = Supported Input format for conversion\n"
|
690 |
".O... = Supported Output format for conversion\n"
|
691 |
"..H.. = Hardware accelerated format\n"
|
692 |
"...P. = Paletted format\n"
|
693 |
"....B = Bitstream format\n"
|
694 |
"FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
|
695 |
"-----\n");
|
696 |
|
697 |
#if !CONFIG_SWSCALE
|
698 |
# define sws_isSupportedInput(x) 0 |
699 |
# define sws_isSupportedOutput(x) 0 |
700 |
#endif
|
701 |
|
702 |
for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) { |
703 |
const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
|
704 |
printf("%c%c%c%c%c %-16s %d %2d\n",
|
705 |
sws_isSupportedInput (pix_fmt) ? 'I' : '.', |
706 |
sws_isSupportedOutput(pix_fmt) ? 'O' : '.', |
707 |
pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.', |
708 |
pix_desc->flags & PIX_FMT_PAL ? 'P' : '.', |
709 |
pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.', |
710 |
pix_desc->name, |
711 |
pix_desc->nb_components, |
712 |
av_get_bits_per_pixel(pix_desc)); |
713 |
} |
714 |
} |
715 |
|
716 |
int read_yesno(void) |
717 |
{ |
718 |
int c = getchar();
|
719 |
int yesno = (toupper(c) == 'Y'); |
720 |
|
721 |
while (c != '\n' && c != EOF) |
722 |
c = getchar(); |
723 |
|
724 |
return yesno;
|
725 |
} |
726 |
|
727 |
int read_file(const char *filename, char **bufptr, size_t *size) |
728 |
{ |
729 |
FILE *f = fopen(filename, "rb");
|
730 |
|
731 |
if (!f) {
|
732 |
fprintf(stderr, "Cannot read file '%s': %s\n", filename, strerror(errno));
|
733 |
return AVERROR(errno);
|
734 |
} |
735 |
fseek(f, 0, SEEK_END);
|
736 |
*size = ftell(f); |
737 |
fseek(f, 0, SEEK_SET);
|
738 |
*bufptr = av_malloc(*size + 1);
|
739 |
if (!*bufptr) {
|
740 |
fprintf(stderr, "Could not allocate file buffer\n");
|
741 |
fclose(f); |
742 |
return AVERROR(ENOMEM);
|
743 |
} |
744 |
fread(*bufptr, 1, *size, f);
|
745 |
(*bufptr)[*size++] = '\0';
|
746 |
|
747 |
fclose(f); |
748 |
return 0; |
749 |
} |
750 |
|
751 |
void init_pts_correction(PtsCorrectionContext *ctx)
|
752 |
{ |
753 |
ctx->num_faulty_pts = ctx->num_faulty_dts = 0;
|
754 |
ctx->last_pts = ctx->last_dts = INT64_MIN; |
755 |
} |
756 |
|
757 |
int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts, int64_t dts) |
758 |
{ |
759 |
int64_t pts = AV_NOPTS_VALUE; |
760 |
|
761 |
if (dts != AV_NOPTS_VALUE) {
|
762 |
ctx->num_faulty_dts += dts <= ctx->last_dts; |
763 |
ctx->last_dts = dts; |
764 |
} |
765 |
if (reordered_pts != AV_NOPTS_VALUE) {
|
766 |
ctx->num_faulty_pts += reordered_pts <= ctx->last_pts; |
767 |
ctx->last_pts = reordered_pts; |
768 |
} |
769 |
if ((ctx->num_faulty_pts<=ctx->num_faulty_dts || dts == AV_NOPTS_VALUE)
|
770 |
&& reordered_pts != AV_NOPTS_VALUE) |
771 |
pts = reordered_pts; |
772 |
else
|
773 |
pts = dts; |
774 |
|
775 |
return pts;
|
776 |
} |
777 |
|
778 |
FILE *get_preset_file(char *filename, size_t filename_size,
|
779 |
const char *preset_name, int is_path, const char *codec_name) |
780 |
{ |
781 |
FILE *f = NULL;
|
782 |
int i;
|
783 |
const char *base[3]= { getenv("FFMPEG_DATADIR"), |
784 |
getenv("HOME"),
|
785 |
FFMPEG_DATADIR, |
786 |
}; |
787 |
|
788 |
if (is_path) {
|
789 |
av_strlcpy(filename, preset_name, filename_size); |
790 |
f = fopen(filename, "r");
|
791 |
} else {
|
792 |
for (i = 0; i < 3 && !f; i++) { |
793 |
if (!base[i])
|
794 |
continue;
|
795 |
snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", preset_name); |
796 |
f = fopen(filename, "r");
|
797 |
if (!f && codec_name) {
|
798 |
snprintf(filename, filename_size, |
799 |
"%s%s/%s-%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", codec_name, preset_name); |
800 |
f = fopen(filename, "r");
|
801 |
} |
802 |
} |
803 |
} |
804 |
|
805 |
return f;
|
806 |
} |
807 |
|
808 |
#if CONFIG_AVFILTER
|
809 |
|
810 |
static int ffsink_init(AVFilterContext *ctx, const char *args, void *opaque) |
811 |
{ |
812 |
FFSinkContext *priv = ctx->priv; |
813 |
|
814 |
if (!opaque)
|
815 |
return AVERROR(EINVAL);
|
816 |
*priv = *(FFSinkContext *)opaque; |
817 |
|
818 |
return 0; |
819 |
} |
820 |
|
821 |
static void null_end_frame(AVFilterLink *inlink) { } |
822 |
|
823 |
static int ffsink_query_formats(AVFilterContext *ctx) |
824 |
{ |
825 |
FFSinkContext *priv = ctx->priv; |
826 |
enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
|
827 |
|
828 |
avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts)); |
829 |
return 0; |
830 |
} |
831 |
|
832 |
AVFilter ffsink = { |
833 |
.name = "ffsink",
|
834 |
.priv_size = sizeof(FFSinkContext),
|
835 |
.init = ffsink_init, |
836 |
|
837 |
.query_formats = ffsink_query_formats, |
838 |
|
839 |
.inputs = (AVFilterPad[]) {{ .name = "default",
|
840 |
.type = AVMEDIA_TYPE_VIDEO, |
841 |
.end_frame = null_end_frame, |
842 |
.min_perms = AV_PERM_READ, }, |
843 |
{ .name = NULL }},
|
844 |
.outputs = (AVFilterPad[]) {{ .name = NULL }},
|
845 |
}; |
846 |
|
847 |
int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
|
848 |
AVFilterBufferRef **picref_ptr, AVRational *tb) |
849 |
{ |
850 |
int ret;
|
851 |
AVFilterBufferRef *picref; |
852 |
|
853 |
if ((ret = avfilter_request_frame(ctx->inputs[0])) < 0) |
854 |
return ret;
|
855 |
if (!(picref = ctx->inputs[0]->cur_buf)) |
856 |
return AVERROR(ENOENT);
|
857 |
*picref_ptr = picref; |
858 |
ctx->inputs[0]->cur_buf = NULL; |
859 |
*tb = ctx->inputs[0]->time_base;
|
860 |
|
861 |
memcpy(frame->data, picref->data, sizeof(frame->data));
|
862 |
memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize));
|
863 |
frame->interlaced_frame = picref->video->interlaced; |
864 |
frame->top_field_first = picref->video->top_field_first; |
865 |
|
866 |
return 1; |
867 |
} |
868 |
|
869 |
#endif /* CONFIG_AVFILTER */ |