diff options
Diffstat (limited to 'avprobe.c')
| -rw-r--r-- | avprobe.c | 969 |
1 files changed, 0 insertions, 969 deletions
diff --git a/avprobe.c b/avprobe.c deleted file mode 100644 index c7b3d39cb2..0000000000 --- a/avprobe.c +++ /dev/null @@ -1,969 +0,0 @@ -/* - * avprobe : Simple Media Prober based on the Libav libraries - * Copyright (c) 2007-2010 Stefano Sabatini - * - * This file is part of Libav. - * - * Libav 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. - * - * Libav 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 Libav; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "config.h" - -#include "libavformat/avformat.h" -#include "libavcodec/avcodec.h" -#include "libavutil/avstring.h" -#include "libavutil/opt.h" -#include "libavutil/pixdesc.h" -#include "libavutil/dict.h" -#include "libavutil/libm.h" -#include "libavdevice/avdevice.h" -#include "cmdutils.h" - -const char program_name[] = "avprobe"; -const int program_birth_year = 2007; - -static int do_show_format = 0; -static AVDictionary *fmt_entries_to_show = NULL; -static int nb_fmt_entries_to_show; -static int do_show_packets = 0; -static int do_show_streams = 0; - -static int show_value_unit = 0; -static int use_value_prefix = 0; -static int use_byte_value_binary_prefix = 0; -static int use_value_sexagesimal_format = 0; - -/* globals */ -static const OptionDef *options; - -/* AVprobe context */ -static const char *input_filename; -static AVInputFormat *iformat = NULL; - -static const char *const binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" }; -static const char *const decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" }; - -static const char unit_second_str[] = "s" ; -static const char unit_hertz_str[] = "Hz" ; -static const char unit_byte_str[] = "byte" ; -static const char unit_bit_per_second_str[] = "bit/s"; - -static void avprobe_cleanup(int ret) -{ - av_dict_free(&fmt_entries_to_show); -} - -/* - * The output is structured in array and objects that might contain items - * Array could require the objects within to not be named. - * Object could require the items within to be named. - * - * For flat representation the name of each section is saved on prefix so it - * can be rendered in order to represent nested structures (e.g. array of - * objects for the packets list). - * - * Within an array each element can need an unique identifier or an index. - * - * Nesting level is accounted separately. - */ - -typedef enum { - ARRAY, - OBJECT -} PrintElementType; - -typedef struct { - const char *name; - PrintElementType type; - int64_t index; - int64_t nb_elems; -} PrintElement; - -typedef struct { - PrintElement *prefix; - int level; - void (*print_header)(void); - void (*print_footer)(void); - - void (*print_array_header) (const char *name); - void (*print_array_footer) (const char *name); - void (*print_object_header)(const char *name); - void (*print_object_footer)(const char *name); - - void (*print_integer) (const char *key, int64_t value); - void (*print_string) (const char *key, const char *value); -} PrintContext; - -static AVIOContext *probe_out = NULL; -static PrintContext octx; -#define AVP_INDENT() avio_printf(probe_out, "%*c", octx.level * 2, ' ') - -/* - * Default format, INI - * - * - all key and values are utf8 - * - '.' is the subgroup separator - * - newlines and the following characters are escaped - * - '\' is the escape character - * - '#' is the comment - * - '=' is the key/value separators - * - ':' is not used but usually parsed as key/value separator - */ - -static void ini_print_header(void) -{ - avio_printf(probe_out, "# avprobe output\n\n"); -} -static void ini_print_footer(void) -{ - avio_w8(probe_out, '\n'); -} - -static void ini_escape_print(const char *s) -{ - int i = 0; - char c = 0; - - while (c = s[i++]) { - switch (c) { - case '\r': avio_printf(probe_out, "%s", "\\r"); break; - case '\n': avio_printf(probe_out, "%s", "\\n"); break; - case '\f': avio_printf(probe_out, "%s", "\\f"); break; - case '\b': avio_printf(probe_out, "%s", "\\b"); break; - case '\t': avio_printf(probe_out, "%s", "\\t"); break; - case '\\': - case '#' : - case '=' : - case ':' : avio_w8(probe_out, '\\'); - default: - if ((unsigned char)c < 32) - avio_printf(probe_out, "\\x00%02x", c & 0xff); - else - avio_w8(probe_out, c); - break; - } - } -} - -static void ini_print_array_header(const char *name) -{ - if (octx.prefix[octx.level -1].nb_elems) - avio_printf(probe_out, "\n"); -} - -static void ini_print_object_header(const char *name) -{ - int i; - PrintElement *el = octx.prefix + octx.level -1; - - if (el->nb_elems) - avio_printf(probe_out, "\n"); - - avio_printf(probe_out, "["); - - for (i = 1; i < octx.level; i++) { - el = octx.prefix + i; - avio_printf(probe_out, "%s.", el->name); - if (el->index >= 0) - avio_printf(probe_out, "%"PRId64".", el->index); - } - - avio_printf(probe_out, "%s", name); - if (el && el->type == ARRAY) - avio_printf(probe_out, ".%"PRId64"", el->nb_elems); - avio_printf(probe_out, "]\n"); -} - -static void ini_print_integer(const char *key, int64_t value) -{ - ini_escape_print(key); - avio_printf(probe_out, "=%"PRId64"\n", value); -} - - -static void ini_print_string(const char *key, const char *value) -{ - ini_escape_print(key); - avio_printf(probe_out, "="); - ini_escape_print(value); - avio_w8(probe_out, '\n'); -} - -/* - * Alternate format, JSON - */ - -static void json_print_header(void) -{ - avio_printf(probe_out, "{"); -} -static void json_print_footer(void) -{ - avio_printf(probe_out, "}\n"); -} - -static void json_print_array_header(const char *name) -{ - if (octx.prefix[octx.level -1].nb_elems) - avio_printf(probe_out, ",\n"); - AVP_INDENT(); - avio_printf(probe_out, "\"%s\" : ", name); - avio_printf(probe_out, "[\n"); -} - -static void json_print_array_footer(const char *name) -{ - avio_printf(probe_out, "\n"); - AVP_INDENT(); - avio_printf(probe_out, "]"); -} - -static void json_print_object_header(const char *name) -{ - if (octx.prefix[octx.level -1].nb_elems) - avio_printf(probe_out, ",\n"); - AVP_INDENT(); - if (octx.prefix[octx.level -1].type == OBJECT) - avio_printf(probe_out, "\"%s\" : ", name); - avio_printf(probe_out, "{\n"); -} - -static void json_print_object_footer(const char *name) -{ - avio_printf(probe_out, "\n"); - AVP_INDENT(); - avio_printf(probe_out, "}"); -} - -static void json_print_integer(const char *key, int64_t value) -{ - if (octx.prefix[octx.level -1].nb_elems) - avio_printf(probe_out, ",\n"); - AVP_INDENT(); - avio_printf(probe_out, "\"%s\" : %"PRId64"", key, value); -} - -static void json_escape_print(const char *s) -{ - int i = 0; - char c = 0; - - while (c = s[i++]) { - switch (c) { - case '\r': avio_printf(probe_out, "%s", "\\r"); break; - case '\n': avio_printf(probe_out, "%s", "\\n"); break; - case '\f': avio_printf(probe_out, "%s", "\\f"); break; - case '\b': avio_printf(probe_out, "%s", "\\b"); break; - case '\t': avio_printf(probe_out, "%s", "\\t"); break; - case '\\': - case '"' : avio_w8(probe_out, '\\'); - default: - if ((unsigned char)c < 32) - avio_printf(probe_out, "\\u00%02x", c & 0xff); - else - avio_w8(probe_out, c); - break; - } - } -} - -static void json_print_string(const char *key, const char *value) -{ - if (octx.prefix[octx.level -1].nb_elems) - avio_printf(probe_out, ",\n"); - AVP_INDENT(); - avio_w8(probe_out, '\"'); - json_escape_print(key); - avio_printf(probe_out, "\" : \""); - json_escape_print(value); - avio_w8(probe_out, '\"'); -} - -/* - * old-style pseudo-INI - */ -static void old_print_object_header(const char *name) -{ - char *str, *p; - - if (!strcmp(name, "tags")) - return; - - str = p = av_strdup(name); - while (*p) { - *p = av_toupper(*p); - p++; - } - - avio_printf(probe_out, "[%s]\n", str); - av_freep(&str); -} - -static void old_print_object_footer(const char *name) -{ - char *str, *p; - - if (!strcmp(name, "tags")) - return; - - str = p = av_strdup(name); - while (*p) { - *p = av_toupper(*p); - p++; - } - - avio_printf(probe_out, "[/%s]\n", str); - av_freep(&str); -} - -static void old_print_string(const char *key, const char *value) -{ - if (!strcmp(octx.prefix[octx.level - 1].name, "tags")) - avio_printf(probe_out, "TAG:"); - ini_print_string(key, value); -} - -/* - * Simple Formatter for single entries. - */ - -static void show_format_entry_integer(const char *key, int64_t value) -{ - if (key && av_dict_get(fmt_entries_to_show, key, NULL, 0)) { - if (nb_fmt_entries_to_show > 1) - avio_printf(probe_out, "%s=", key); - avio_printf(probe_out, "%"PRId64"\n", value); - } -} - -static void show_format_entry_string(const char *key, const char *value) -{ - if (key && av_dict_get(fmt_entries_to_show, key, NULL, 0)) { - if (nb_fmt_entries_to_show > 1) - avio_printf(probe_out, "%s=", key); - avio_printf(probe_out, "%s\n", value); - } -} - -static void probe_group_enter(const char *name, int type) -{ - int64_t count = -1; - - octx.prefix = - av_realloc(octx.prefix, sizeof(PrintElement) * (octx.level + 1)); - - if (!octx.prefix || !name) { - fprintf(stderr, "Out of memory\n"); - exit_program(1); - } - - if (octx.level) { - PrintElement *parent = octx.prefix + octx.level -1; - if (parent->type == ARRAY) - count = parent->nb_elems; - parent->nb_elems++; - } - - octx.prefix[octx.level++] = (PrintElement){name, type, count, 0}; -} - -static void probe_group_leave(void) -{ - --octx.level; -} - -static void probe_header(void) -{ - if (octx.print_header) - octx.print_header(); - probe_group_enter("root", OBJECT); -} - -static void probe_footer(void) -{ - if (octx.print_footer) - octx.print_footer(); - probe_group_leave(); -} - - -static void probe_array_header(const char *name) -{ - if (octx.print_array_header) - octx.print_array_header(name); - - probe_group_enter(name, ARRAY); -} - -static void probe_array_footer(const char *name) -{ - probe_group_leave(); - if (octx.print_array_footer) - octx.print_array_footer(name); -} - -static void probe_object_header(const char *name) -{ - if (octx.print_object_header) - octx.print_object_header(name); - - probe_group_enter(name, OBJECT); -} - -static void probe_object_footer(const char *name) -{ - probe_group_leave(); - if (octx.print_object_footer) - octx.print_object_footer(name); -} - -static void probe_int(const char *key, int64_t value) -{ - octx.print_integer(key, value); - octx.prefix[octx.level -1].nb_elems++; -} - -static void probe_str(const char *key, const char *value) -{ - octx.print_string(key, value); - octx.prefix[octx.level -1].nb_elems++; -} - -static void probe_dict(AVDictionary *dict, const char *name) -{ - AVDictionaryEntry *entry = NULL; - if (!dict) - return; - probe_object_header(name); - while ((entry = av_dict_get(dict, "", entry, AV_DICT_IGNORE_SUFFIX))) { - probe_str(entry->key, entry->value); - } - probe_object_footer(name); -} - -static char *value_string(char *buf, int buf_size, double val, const char *unit) -{ - if (unit == unit_second_str && use_value_sexagesimal_format) { - double secs; - int hours, mins; - secs = val; - mins = (int)secs / 60; - secs = secs - mins * 60; - hours = mins / 60; - mins %= 60; - snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs); - } else if (use_value_prefix) { - const char *prefix_string; - int index; - - if (unit == unit_byte_str && use_byte_value_binary_prefix) { - index = (int) log2(val) / 10; - index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) - 1); - val /= pow(2, index * 10); - prefix_string = binary_unit_prefixes[index]; - } else { - index = (int) (log10(val)) / 3; - index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) - 1); - val /= pow(10, index * 3); - prefix_string = decimal_unit_prefixes[index]; - } - snprintf(buf, buf_size, "%.*f%s%s", - index ? 3 : 0, val, - prefix_string, - show_value_unit ? unit : ""); - } else { - snprintf(buf, buf_size, "%f%s", val, show_value_unit ? unit : ""); - } - - return buf; -} - -static char *time_value_string(char *buf, int buf_size, int64_t val, - const AVRational *time_base) -{ - if (val == AV_NOPTS_VALUE) { - snprintf(buf, buf_size, "N/A"); - } else { - value_string(buf, buf_size, val * av_q2d(*time_base), unit_second_str); - } - - return buf; -} - -static char *ts_value_string(char *buf, int buf_size, int64_t ts) -{ - if (ts == AV_NOPTS_VALUE) { - snprintf(buf, buf_size, "N/A"); - } else { - snprintf(buf, buf_size, "%"PRId64, ts); - } - - return buf; -} - -static char *rational_string(char *buf, int buf_size, const char *sep, - const AVRational *rat) -{ - snprintf(buf, buf_size, "%d%s%d", rat->num, sep, rat->den); - return buf; -} - -static char *tag_string(char *buf, int buf_size, int tag) -{ - snprintf(buf, buf_size, "0x%04x", tag); - return buf; -} - -static void show_packet(AVFormatContext *fmt_ctx, AVPacket *pkt) -{ - char val_str[128]; - AVStream *st = fmt_ctx->streams[pkt->stream_index]; - - probe_object_header("packet"); - probe_str("codec_type", media_type_string(st->codec->codec_type)); - probe_int("stream_index", pkt->stream_index); - probe_str("pts", ts_value_string(val_str, sizeof(val_str), pkt->pts)); - probe_str("pts_time", time_value_string(val_str, sizeof(val_str), - pkt->pts, &st->time_base)); - probe_str("dts", ts_value_string(val_str, sizeof(val_str), pkt->dts)); - probe_str("dts_time", time_value_string(val_str, sizeof(val_str), - pkt->dts, &st->time_base)); - probe_str("duration", ts_value_string(val_str, sizeof(val_str), - pkt->duration)); - probe_str("duration_time", time_value_string(val_str, sizeof(val_str), - pkt->duration, - &st->time_base)); - probe_str("size", value_string(val_str, sizeof(val_str), - pkt->size, unit_byte_str)); - probe_int("pos", pkt->pos); - probe_str("flags", pkt->flags & AV_PKT_FLAG_KEY ? "K" : "_"); - probe_object_footer("packet"); -} - -static void show_packets(AVFormatContext *fmt_ctx) -{ - AVPacket pkt; - - av_init_packet(&pkt); - probe_array_header("packets"); - while (!av_read_frame(fmt_ctx, &pkt)) - show_packet(fmt_ctx, &pkt); - probe_array_footer("packets"); -} - -static void show_stream(AVFormatContext *fmt_ctx, int stream_idx) -{ - AVStream *stream = fmt_ctx->streams[stream_idx]; - AVCodecContext *dec_ctx; - const AVCodec *dec; - const char *profile; - char val_str[128]; - AVRational display_aspect_ratio, *sar = NULL; - const AVPixFmtDescriptor *desc; - - probe_object_header("stream"); - - probe_int("index", stream->index); - - if ((dec_ctx = stream->codec)) { - if ((dec = dec_ctx->codec)) { - probe_str("codec_name", dec->name); - probe_str("codec_long_name", dec->long_name); - } else { - probe_str("codec_name", "unknown"); - } - - probe_str("codec_type", media_type_string(dec_ctx->codec_type)); - probe_str("codec_time_base", - rational_string(val_str, sizeof(val_str), - "/", &dec_ctx->time_base)); - - /* print AVI/FourCC tag */ - av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag); - probe_str("codec_tag_string", val_str); - probe_str("codec_tag", tag_string(val_str, sizeof(val_str), - dec_ctx->codec_tag)); - - /* print profile, if there is one */ - if (dec && (profile = av_get_profile_name(dec, dec_ctx->profile))) - probe_str("profile", profile); - - switch (dec_ctx->codec_type) { - case AVMEDIA_TYPE_VIDEO: - probe_int("width", dec_ctx->width); - probe_int("height", dec_ctx->height); - probe_int("has_b_frames", dec_ctx->has_b_frames); - if (dec_ctx->sample_aspect_ratio.num) - sar = &dec_ctx->sample_aspect_ratio; - else if (stream->sample_aspect_ratio.num) - sar = &stream->sample_aspect_ratio; - - if (sar) { - probe_str("sample_aspect_ratio", - rational_string(val_str, sizeof(val_str), ":", sar)); - av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, - dec_ctx->width * sar->num, dec_ctx->height * sar->den, - 1024*1024); - probe_str("display_aspect_ratio", - rational_string(val_str, sizeof(val_str), ":", - &display_aspect_ratio)); - } - desc = av_pix_fmt_desc_get(dec_ctx->pix_fmt); - probe_str("pix_fmt", desc ? desc->name : "unknown"); - probe_int("level", dec_ctx->level); - break; - - case AVMEDIA_TYPE_AUDIO: - probe_str("sample_rate", - value_string(val_str, sizeof(val_str), - dec_ctx->sample_rate, - unit_hertz_str)); - probe_int("channels", dec_ctx->channels); - probe_int("bits_per_sample", - av_get_bits_per_sample(dec_ctx->codec_id)); - break; - } - } else { - probe_str("codec_type", "unknown"); - } - - if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) - probe_int("id", stream->id); - probe_str("avg_frame_rate", - rational_string(val_str, sizeof(val_str), "/", - &stream->avg_frame_rate)); - if (dec_ctx->bit_rate) - probe_str("bit_rate", - value_string(val_str, sizeof(val_str), - dec_ctx->bit_rate, unit_bit_per_second_str)); - probe_str("time_base", - rational_string(val_str, sizeof(val_str), "/", - &stream->time_base)); - probe_str("start_time", - time_value_string(val_str, sizeof(val_str), - stream->start_time, &stream->time_base)); - probe_str("duration", - time_value_string(val_str, sizeof(val_str), - stream->duration, &stream->time_base)); - if (stream->nb_frames) - probe_int("nb_frames", stream->nb_frames); - - probe_dict(stream->metadata, "tags"); - - probe_object_footer("stream"); -} - -static void show_format(AVFormatContext *fmt_ctx) -{ - char val_str[128]; - int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1; - - probe_object_header("format"); - probe_str("filename", fmt_ctx->filename); - probe_int("nb_streams", fmt_ctx->nb_streams); - probe_str("format_name", fmt_ctx->iformat->name); - probe_str("format_long_name", fmt_ctx->iformat->long_name); - probe_str("start_time", - time_value_string(val_str, sizeof(val_str), - fmt_ctx->start_time, &AV_TIME_BASE_Q)); - probe_str("duration", - time_value_string(val_str, sizeof(val_str), - fmt_ctx->duration, &AV_TIME_BASE_Q)); - probe_str("size", - size >= 0 ? value_string(val_str, sizeof(val_str), - size, unit_byte_str) - : "unknown"); - probe_str("bit_rate", - value_string(val_str, sizeof(val_str), - fmt_ctx->bit_rate, unit_bit_per_second_str)); - - probe_dict(fmt_ctx->metadata, "tags"); - - probe_object_footer("format"); -} - -static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename) -{ - int err, i; - AVFormatContext *fmt_ctx = NULL; - AVDictionaryEntry *t; - - if ((err = avformat_open_input(&fmt_ctx, filename, - iformat, &format_opts)) < 0) { - print_error(filename, err); - return err; - } - if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { - av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); - return AVERROR_OPTION_NOT_FOUND; - } - - - /* fill the streams in the format context */ - if ((err = avformat_find_stream_info(fmt_ctx, NULL)) < 0) { - print_error(filename, err); - return err; - } - - av_dump_format(fmt_ctx, 0, filename, 0); - - /* bind a decoder to each input stream */ - for (i = 0; i < fmt_ctx->nb_streams; i++) { - AVStream *stream = fmt_ctx->streams[i]; - AVCodec *codec; - - if (stream->codec->codec_id == AV_CODEC_ID_PROBE) { - fprintf(stderr, "Failed to probe codec for input stream %d\n", - stream->index); - } else if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) { - fprintf(stderr, - "Unsupported codec with id %d for input stream %d\n", - stream->codec->codec_id, stream->index); - } else if (avcodec_open2(stream->codec, codec, NULL) < 0) { - fprintf(stderr, "Error while opening codec for input stream %d\n", - stream->index); - } - } - - *fmt_ctx_ptr = fmt_ctx; - return 0; -} - -static void close_input_file(AVFormatContext **ctx_ptr) -{ - int i; - AVFormatContext *fmt_ctx = *ctx_ptr; - - /* close decoder for each stream */ - for (i = 0; i < fmt_ctx->nb_streams; i++) { - AVStream *stream = fmt_ctx->streams[i]; - - avcodec_close(stream->codec); - } - avformat_close_input(ctx_ptr); -} - -static int probe_file(const char *filename) -{ - AVFormatContext *fmt_ctx; - int ret, i; - - if ((ret = open_input_file(&fmt_ctx, filename))) - return ret; - - if (do_show_format) - show_format(fmt_ctx); - - if (do_show_streams) { - probe_array_header("streams"); - for (i = 0; i < fmt_ctx->nb_streams; i++) - show_stream(fmt_ctx, i); - probe_array_footer("streams"); - } - - if (do_show_packets) - show_packets(fmt_ctx); - - close_input_file(&fmt_ctx); - return 0; -} - -static void show_usage(void) -{ - printf("Simple multimedia streams analyzer\n"); - printf("usage: %s [OPTIONS] [INPUT_FILE]\n", program_name); - printf("\n"); -} - -static int opt_format(void *optctx, const char *opt, const char *arg) -{ - iformat = av_find_input_format(arg); - if (!iformat) { - fprintf(stderr, "Unknown input format: %s\n", arg); - return AVERROR(EINVAL); - } - return 0; -} - -static int opt_output_format(void *optctx, const char *opt, const char *arg) -{ - - if (!strcmp(arg, "json")) { - octx.print_header = json_print_header; - octx.print_footer = json_print_footer; - octx.print_array_header = json_print_array_header; - octx.print_array_footer = json_print_array_footer; - octx.print_object_header = json_print_object_header; - octx.print_object_footer = json_print_object_footer; - - octx.print_integer = json_print_integer; - octx.print_string = json_print_string; - } else if (!strcmp(arg, "ini")) { - octx.print_header = ini_print_header; - octx.print_footer = ini_print_footer; - octx.print_array_header = ini_print_array_header; - octx.print_object_header = ini_print_object_header; - - octx.print_integer = ini_print_integer; - octx.print_string = ini_print_string; - } else if (!strcmp(arg, "old")) { - octx.print_header = NULL; - octx.print_object_header = old_print_object_header; - octx.print_object_footer = old_print_object_footer; - - octx.print_string = old_print_string; - } else { - av_log(NULL, AV_LOG_ERROR, "Unsupported formatter %s\n", arg); - return AVERROR(EINVAL); - } - return 0; -} - -static int opt_show_format_entry(void *optctx, const char *opt, const char *arg) -{ - do_show_format = 1; - nb_fmt_entries_to_show++; - octx.print_header = NULL; - octx.print_footer = NULL; - octx.print_array_header = NULL; - octx.print_array_footer = NULL; - octx.print_object_header = NULL; - octx.print_object_footer = NULL; - - octx.print_integer = show_format_entry_integer; - octx.print_string = show_format_entry_string; - av_dict_set(&fmt_entries_to_show, arg, "", 0); - return 0; -} - -static void opt_input_file(void *optctx, const char *arg) -{ - if (input_filename) { - fprintf(stderr, - "Argument '%s' provided as input filename, but '%s' was already specified.\n", - arg, input_filename); - exit_program(1); - } - if (!strcmp(arg, "-")) - arg = "pipe:"; - input_filename = arg; -} - -void show_help_default(const char *opt, const char *arg) -{ - av_log_set_callback(log_callback_help); - show_usage(); - show_help_options(options, "Main options:", 0, 0, 0); - printf("\n"); - show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); -} - -static int opt_pretty(void *optctx, const char *opt, const char *arg) -{ - show_value_unit = 1; - use_value_prefix = 1; - use_byte_value_binary_prefix = 1; - use_value_sexagesimal_format = 1; - return 0; -} - -static const OptionDef real_options[] = { -#include "cmdutils_common_opts.h" - { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "format" }, - { "of", HAS_ARG, {.func_arg = opt_output_format}, "output the document either as ini or json", "output_format" }, - { "unit", OPT_BOOL, {&show_value_unit}, - "show unit of the displayed values" }, - { "prefix", OPT_BOOL, {&use_value_prefix}, - "use SI prefixes for the displayed values" }, - { "byte_binary_prefix", OPT_BOOL, {&use_byte_value_binary_prefix}, - "use binary prefixes for byte units" }, - { "sexagesimal", OPT_BOOL, {&use_value_sexagesimal_format}, - "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" }, - { "pretty", 0, {.func_arg = opt_pretty}, - "prettify the format of displayed values, make it more human readable" }, - { "show_format", OPT_BOOL, {&do_show_format} , "show format/container info" }, - { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry}, - "show a particular entry from the format/container info", "entry" }, - { "show_packets", OPT_BOOL, {&do_show_packets}, "show packets info" }, - { "show_streams", OPT_BOOL, {&do_show_streams}, "show streams info" }, - { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, - "generic catch all option", "" }, - { NULL, }, -}; - -static int probe_buf_write(void *opaque, uint8_t *buf, int buf_size) -{ - printf("%.*s", buf_size, buf); - return 0; -} - -#define AVP_BUFFSIZE 4096 - -int main(int argc, char **argv) -{ - int ret; - uint8_t *buffer = av_malloc(AVP_BUFFSIZE); - - if (!buffer) - exit(1); - - register_exit(avprobe_cleanup); - - options = real_options; - parse_loglevel(argc, argv, options); - av_register_all(); - avformat_network_init(); - init_opts(); -#if CONFIG_AVDEVICE - avdevice_register_all(); -#endif - - show_banner(); - - octx.print_header = ini_print_header; - octx.print_footer = ini_print_footer; - - octx.print_array_header = ini_print_array_header; - octx.print_object_header = ini_print_object_header; - - octx.print_integer = ini_print_integer; - octx.print_string = ini_print_string; - - parse_options(NULL, argc, argv, options, opt_input_file); - - if (!input_filename) { - show_usage(); - fprintf(stderr, "You have to specify one input file.\n"); - fprintf(stderr, - "Use -h to get full help or, even better, run 'man %s'.\n", - program_name); - exit_program(1); - } - - probe_out = avio_alloc_context(buffer, AVP_BUFFSIZE, 1, NULL, NULL, - probe_buf_write, NULL); - if (!probe_out) - exit_program(1); - - probe_header(); - ret = probe_file(input_filename); - probe_footer(); - avio_flush(probe_out); - avio_close(probe_out); - - avformat_network_deinit(); - - return ret; -} |