making act segmenter

1 files changed, 0 insertions, 2327 deletions

diff --git a/ffmpeg1/ffprobe.c b/ffmpeg1/ffprobe.c
deleted file mode 100644
index 4d2d3e1..0000000
--- a/ffmpeg1/ffprobe.c
+++ /dev/null
@@ -1,2327 +0,0 @@
-/*
- * Copyright (c) 2007-2010 Stefano Sabatini
- *
- * 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
- */
-
-/**
- * @file
- * simple media prober based on the FFmpeg libraries
- */
-
-#include "config.h"
-#include "version.h"
-
-#include <string.h>
-
-#include "libavformat/avformat.h"
-#include "libavcodec/avcodec.h"
-#include "libavutil/avassert.h"
-#include "libavutil/avstring.h"
-#include "libavutil/bprint.h"
-#include "libavutil/opt.h"
-#include "libavutil/pixdesc.h"
-#include "libavutil/dict.h"
-#include "libavutil/libm.h"
-#include "libavutil/timecode.h"
-#include "libavdevice/avdevice.h"
-#include "libswscale/swscale.h"
-#include "libswresample/swresample.h"
-#include "libpostproc/postprocess.h"
-#include "cmdutils.h"
-
-const char program_name[] = "ffprobe";
-const int program_birth_year = 2007;
-
-static int do_bitexact = 0;
-static int do_count_frames = 0;
-static int do_count_packets = 0;
-static int do_read_frames  = 0;
-static int do_read_packets = 0;
-static int do_show_error   = 0;
-static int do_show_format  = 0;
-static int do_show_frames  = 0;
-static int do_show_packets = 0;
-static int do_show_streams = 0;
-static int do_show_stream_disposition = 0;
-static int do_show_data    = 0;
-static int do_show_program_version  = 0;
-static int do_show_library_versions = 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;
-static int show_private_data            = 1;
-
-static char *print_format;
-static char *stream_specifier;
-
-/* section structure definition */
-
-#define SECTION_MAX_NB_CHILDREN 10
-
-struct section {
-    int id;             ///< unique id identifying a section
-    const char *name;
-
-#define SECTION_FLAG_IS_WRAPPER      1 ///< the section only contains other sections, but has no data at its own level
-#define SECTION_FLAG_IS_ARRAY        2 ///< the section contains an array of elements of the same type
-#define SECTION_FLAG_HAS_VARIABLE_FIELDS 4 ///< the section may contain a variable number of fields with variable keys.
-                                           ///  For these sections the element_name field is mandatory.
-    int flags;
-    int children_ids[SECTION_MAX_NB_CHILDREN+1]; ///< list of children section IDS, terminated by -1
-    const char *element_name; ///< name of the contained element, if provided
-    const char *unique_name;  ///< unique section name, in case the name is ambiguous
-    AVDictionary *entries_to_show;
-    int show_all_entries;
-};
-
-typedef enum {
-    SECTION_ID_NONE = -1,
-    SECTION_ID_ERROR,
-    SECTION_ID_FORMAT,
-    SECTION_ID_FORMAT_TAGS,
-    SECTION_ID_FRAME,
-    SECTION_ID_FRAMES,
-    SECTION_ID_FRAME_TAGS,
-    SECTION_ID_LIBRARY_VERSION,
-    SECTION_ID_LIBRARY_VERSIONS,
-    SECTION_ID_PACKET,
-    SECTION_ID_PACKETS,
-    SECTION_ID_PACKETS_AND_FRAMES,
-    SECTION_ID_PROGRAM_VERSION,
-    SECTION_ID_ROOT,
-    SECTION_ID_STREAM,
-    SECTION_ID_STREAM_DISPOSITION,
-    SECTION_ID_STREAMS,
-    SECTION_ID_STREAM_TAGS,
-} SectionID;
-
-static struct section sections[] = {
-    [SECTION_ID_ERROR] =              { SECTION_ID_ERROR, "error", 0, { -1 } },
-    [SECTION_ID_FORMAT] =             { SECTION_ID_FORMAT, "format", 0, { SECTION_ID_FORMAT_TAGS, -1 } },
-    [SECTION_ID_FORMAT_TAGS] =        { SECTION_ID_FORMAT_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "format_tags" },
-    [SECTION_ID_FRAMES] =             { SECTION_ID_FRAMES, "frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME, -1 } },
-    [SECTION_ID_FRAME] =              { SECTION_ID_FRAME, "frame", 0, { SECTION_ID_FRAME_TAGS, -1 } },
-    [SECTION_ID_FRAME_TAGS] =         { SECTION_ID_FRAME_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "frame_tags" },
-    [SECTION_ID_LIBRARY_VERSIONS] =   { SECTION_ID_LIBRARY_VERSIONS, "library_versions", SECTION_FLAG_IS_ARRAY, { SECTION_ID_LIBRARY_VERSION, -1 } },
-    [SECTION_ID_LIBRARY_VERSION] =    { SECTION_ID_LIBRARY_VERSION, "library_version", 0, { -1 } },
-    [SECTION_ID_PACKETS] =            { SECTION_ID_PACKETS, "packets", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
-    [SECTION_ID_PACKETS_AND_FRAMES] = { SECTION_ID_PACKETS_AND_FRAMES, "packets_and_frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
-    [SECTION_ID_PACKET] =             { SECTION_ID_PACKET, "packet", 0, { -1 } },
-    [SECTION_ID_PROGRAM_VERSION] =    { SECTION_ID_PROGRAM_VERSION, "program_version", 0, { -1 } },
-    [SECTION_ID_ROOT] =               { SECTION_ID_ROOT, "root", SECTION_FLAG_IS_WRAPPER,
-                                        { SECTION_ID_FORMAT, SECTION_ID_FRAMES, SECTION_ID_STREAMS, SECTION_ID_PACKETS,
-                                          SECTION_ID_ERROR, SECTION_ID_PROGRAM_VERSION, SECTION_ID_LIBRARY_VERSIONS, -1} },
-    [SECTION_ID_STREAMS] =            { SECTION_ID_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM, -1 } },
-    [SECTION_ID_STREAM] =             { SECTION_ID_STREAM, "stream", 0, { SECTION_ID_STREAM_DISPOSITION, SECTION_ID_STREAM_TAGS, -1 } },
-    [SECTION_ID_STREAM_DISPOSITION] = { SECTION_ID_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "stream_disposition" },
-    [SECTION_ID_STREAM_TAGS] =        { SECTION_ID_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "stream_tags" },
-};
-
-static const OptionDef *options;
-
-/* FFprobe 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 uint64_t *nb_streams_packets;
-static uint64_t *nb_streams_frames;
-static int *selected_streams;
-
-static void exit_program(void)
-{
-    int i;
-    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
-        av_dict_free(&(sections[i].entries_to_show));
-}
-
-struct unit_value {
-    union { double d; long long int i; } val;
-    const char *unit;
-};
-
-static char *value_string(char *buf, int buf_size, struct unit_value uv)
-{
-    double vald;
-    long long int vali;
-    int show_float = 0;
-
-    if (uv.unit == unit_second_str) {
-        vald = uv.val.d;
-        show_float = 1;
-    } else {
-        vald = vali = uv.val.i;
-    }
-
-    if (uv.unit == unit_second_str && use_value_sexagesimal_format) {
-        double secs;
-        int hours, mins;
-        secs  = vald;
-        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 {
-        const char *prefix_string = "";
-
-        if (use_value_prefix && vald > 1) {
-            long long int index;
-
-            if (uv.unit == unit_byte_str && use_byte_value_binary_prefix) {
-                index = (long long int) (log2(vald)) / 10;
-                index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) - 1);
-                vald /= exp2(index * 10);
-                prefix_string = binary_unit_prefixes[index];
-            } else {
-                index = (long long int) (log10(vald)) / 3;
-                index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) - 1);
-                vald /= pow(10, index * 3);
-                prefix_string = decimal_unit_prefixes[index];
-            }
-        }
-
-        if (show_float || (use_value_prefix && vald != (long long int)vald))
-            snprintf(buf, buf_size, "%f", vald);
-        else
-            snprintf(buf, buf_size, "%lld", vali);
-        av_strlcatf(buf, buf_size, "%s%s%s", *prefix_string || show_value_unit ? " " : "",
-                 prefix_string, show_value_unit ? uv.unit : "");
-    }
-
-    return buf;
-}
-
-/* WRITERS API */
-
-typedef struct WriterContext WriterContext;
-
-#define WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS 1
-#define WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER 2
-
-typedef struct Writer {
-    const AVClass *priv_class;      ///< private class of the writer, if any
-    int priv_size;                  ///< private size for the writer context
-    const char *name;
-
-    int  (*init)  (WriterContext *wctx);
-    void (*uninit)(WriterContext *wctx);
-
-    void (*print_section_header)(WriterContext *wctx);
-    void (*print_section_footer)(WriterContext *wctx);
-    void (*print_integer)       (WriterContext *wctx, const char *, long long int);
-    void (*print_rational)      (WriterContext *wctx, AVRational *q, char *sep);
-    void (*print_string)        (WriterContext *wctx, const char *, const char *);
-    int flags;                  ///< a combination or WRITER_FLAG_*
-} Writer;
-
-#define SECTION_MAX_NB_LEVELS 10
-
-struct WriterContext {
-    const AVClass *class;           ///< class of the writer
-    const Writer *writer;           ///< the Writer of which this is an instance
-    char *name;                     ///< name of this writer instance
-    void *priv;                     ///< private data for use by the filter
-
-    const struct section *sections; ///< array containing all sections
-    int nb_sections;                ///< number of sections
-
-    int level;                      ///< current level, starting from 0
-
-    /** number of the item printed in the given section, starting from 0 */
-    unsigned int nb_item[SECTION_MAX_NB_LEVELS];
-
-    /** section per each level */
-    const struct section *section[SECTION_MAX_NB_LEVELS];
-    AVBPrint section_pbuf[SECTION_MAX_NB_LEVELS]; ///< generic print buffer dedicated to each section,
-                                                  ///  used by various writers
-
-    unsigned int nb_section_packet; ///< number of the packet section in case we are in "packets_and_frames" section
-    unsigned int nb_section_frame;  ///< number of the frame  section in case we are in "packets_and_frames" section
-    unsigned int nb_section_packet_frame; ///< nb_section_packet or nb_section_frame according if is_packets_and_frames
-};
-
-static const char *writer_get_name(void *p)
-{
-    WriterContext *wctx = p;
-    return wctx->writer->name;
-}
-
-static const AVClass writer_class = {
-    "Writer",
-    writer_get_name,
-    NULL,
-    LIBAVUTIL_VERSION_INT,
-};
-
-static void writer_close(WriterContext **wctx)
-{
-    int i;
-
-    if (!*wctx)
-        return;
-
-    if ((*wctx)->writer->uninit)
-        (*wctx)->writer->uninit(*wctx);
-    for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
-        av_bprint_finalize(&(*wctx)->section_pbuf[i], NULL);
-    if ((*wctx)->writer->priv_class)
-        av_opt_free((*wctx)->priv);
-    av_freep(&((*wctx)->priv));
-    av_freep(wctx);
-}
-
-static int writer_open(WriterContext **wctx, const Writer *writer, const char *args,
-                       const struct section *sections, int nb_sections)
-{
-    int i, ret = 0;
-
-    if (!(*wctx = av_mallocz(sizeof(WriterContext)))) {
-        ret = AVERROR(ENOMEM);
-        goto fail;
-    }
-
-    if (!((*wctx)->priv = av_mallocz(writer->priv_size))) {
-        ret = AVERROR(ENOMEM);
-        goto fail;
-    }
-
-    (*wctx)->class = &writer_class;
-    (*wctx)->writer = writer;
-    (*wctx)->level = -1;
-    (*wctx)->sections = sections;
-    (*wctx)->nb_sections = nb_sections;
-
-    if (writer->priv_class) {
-        void *priv_ctx = (*wctx)->priv;
-        *((const AVClass **)priv_ctx) = writer->priv_class;
-        av_opt_set_defaults(priv_ctx);
-
-        if (args &&
-            (ret = av_set_options_string(priv_ctx, args, "=", ":")) < 0)
-            goto fail;
-    }
-
-    for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
-        av_bprint_init(&(*wctx)->section_pbuf[i], 1, AV_BPRINT_SIZE_UNLIMITED);
-
-    if ((*wctx)->writer->init)
-        ret = (*wctx)->writer->init(*wctx);
-    if (ret < 0)
-        goto fail;
-
-    return 0;
-
-fail:
-    writer_close(wctx);
-    return ret;
-}
-
-static inline void writer_print_section_header(WriterContext *wctx,
-                                               int section_id)
-{
-    int parent_section_id;
-    wctx->level++;
-    av_assert0(wctx->level < SECTION_MAX_NB_LEVELS);
-    parent_section_id = wctx->level ?
-        (wctx->section[wctx->level-1])->id : SECTION_ID_NONE;
-
-    wctx->nb_item[wctx->level] = 0;
-    wctx->section[wctx->level] = &wctx->sections[section_id];
-
-    if (section_id == SECTION_ID_PACKETS_AND_FRAMES) {
-        wctx->nb_section_packet = wctx->nb_section_frame =
-        wctx->nb_section_packet_frame = 0;
-    } else if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) {
-        wctx->nb_section_packet_frame = section_id == SECTION_ID_PACKET ?
-            wctx->nb_section_packet : wctx->nb_section_frame;
-    }
-
-    if (wctx->writer->print_section_header)
-        wctx->writer->print_section_header(wctx);
-}
-
-static inline void writer_print_section_footer(WriterContext *wctx)
-{
-    int section_id = wctx->section[wctx->level]->id;
-    int parent_section_id = wctx->level ?
-        wctx->section[wctx->level-1]->id : SECTION_ID_NONE;
-
-    if (parent_section_id != SECTION_ID_NONE)
-        wctx->nb_item[wctx->level-1]++;
-    if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) {
-        if (section_id == SECTION_ID_PACKET) wctx->nb_section_packet++;
-        else                                     wctx->nb_section_frame++;
-    }
-    if (wctx->writer->print_section_footer)
-        wctx->writer->print_section_footer(wctx);
-    wctx->level--;
-}
-
-static inline void writer_print_integer(WriterContext *wctx,
-                                        const char *key, long long int val)
-{
-    const struct section *section = wctx->section[wctx->level];
-
-    if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
-        wctx->writer->print_integer(wctx, key, val);
-        wctx->nb_item[wctx->level]++;
-    }
-}
-
-static inline void writer_print_string(WriterContext *wctx,
-                                       const char *key, const char *val, int opt)
-{
-    const struct section *section = wctx->section[wctx->level];
-
-    if (opt && !(wctx->writer->flags & WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS))
-        return;
-
-    if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
-        wctx->writer->print_string(wctx, key, val);
-        wctx->nb_item[wctx->level]++;
-    }
-}
-
-static inline void writer_print_rational(WriterContext *wctx,
-                                         const char *key, AVRational q, char sep)
-{
-    AVBPrint buf;
-    av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
-    av_bprintf(&buf, "%d%c%d", q.num, sep, q.den);
-    writer_print_string(wctx, key, buf.str, 0);
-}
-
-static void writer_print_time(WriterContext *wctx, const char *key,
-                              int64_t ts, const AVRational *time_base, int is_duration)
-{
-    char buf[128];
-
-    if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
-        writer_print_string(wctx, key, "N/A", 1);
-    } else {
-        double d = ts * av_q2d(*time_base);
-        struct unit_value uv;
-        uv.val.d = d;
-        uv.unit = unit_second_str;
-        value_string(buf, sizeof(buf), uv);
-        writer_print_string(wctx, key, buf, 0);
-    }
-}
-
-static void writer_print_ts(WriterContext *wctx, const char *key, int64_t ts, int is_duration)
-{
-    if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
-        writer_print_string(wctx, key, "N/A", 1);
-    } else {
-        writer_print_integer(wctx, key, ts);
-    }
-}
-
-static void writer_print_data(WriterContext *wctx, const char *name,
-                              uint8_t *data, int size)
-{
-    AVBPrint bp;
-    int offset = 0, l, i;
-
-    av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
-    av_bprintf(&bp, "\n");
-    while (size) {
-        av_bprintf(&bp, "%08x: ", offset);
-        l = FFMIN(size, 16);
-        for (i = 0; i < l; i++) {
-            av_bprintf(&bp, "%02x", data[i]);
-            if (i & 1)
-                av_bprintf(&bp, " ");
-        }
-        av_bprint_chars(&bp, ' ', 41 - 2 * i - i / 2);
-        for (i = 0; i < l; i++)
-            av_bprint_chars(&bp, data[i] - 32U < 95 ? data[i] : '.', 1);
-        av_bprintf(&bp, "\n");
-        offset += l;
-        data   += l;
-        size   -= l;
-    }
-    writer_print_string(wctx, name, bp.str, 0);
-    av_bprint_finalize(&bp, NULL);
-}
-
-#define MAX_REGISTERED_WRITERS_NB 64
-
-static const Writer *registered_writers[MAX_REGISTERED_WRITERS_NB + 1];
-
-static int writer_register(const Writer *writer)
-{
-    static int next_registered_writer_idx = 0;
-
-    if (next_registered_writer_idx == MAX_REGISTERED_WRITERS_NB)
-        return AVERROR(ENOMEM);
-
-    registered_writers[next_registered_writer_idx++] = writer;
-    return 0;
-}
-
-static const Writer *writer_get_by_name(const char *name)
-{
-    int i;
-
-    for (i = 0; registered_writers[i]; i++)
-        if (!strcmp(registered_writers[i]->name, name))
-            return registered_writers[i];
-
-    return NULL;
-}
-
-
-/* WRITERS */
-
-#define DEFINE_WRITER_CLASS(name)                   \
-static const char *name##_get_name(void *ctx)       \
-{                                                   \
-    return #name ;                                  \
-}                                                   \
-static const AVClass name##_class = {               \
-    #name,                                          \
-    name##_get_name,                                \
-    name##_options                                  \
-}
-
-/* Default output */
-
-typedef struct DefaultContext {
-    const AVClass *class;
-    int nokey;
-    int noprint_wrappers;
-    int nested_section[SECTION_MAX_NB_LEVELS];
-} DefaultContext;
-
-#define OFFSET(x) offsetof(DefaultContext, x)
-
-static const AVOption default_options[] = {
-    { "noprint_wrappers", "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
-    { "nw",               "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
-    { "nokey",          "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
-    { "nk",             "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
-    {NULL},
-};
-
-DEFINE_WRITER_CLASS(default);
-
-/* lame uppercasing routine, assumes the string is lower case ASCII */
-static inline char *upcase_string(char *dst, size_t dst_size, const char *src)
-{
-    int i;
-    for (i = 0; src[i] && i < dst_size-1; i++)
-        dst[i] = av_toupper(src[i]);
-    dst[i] = 0;
-    return dst;
-}
-
-static void default_print_section_header(WriterContext *wctx)
-{
-    DefaultContext *def = wctx->priv;
-    char buf[32];
-    const struct section *section = wctx->section[wctx->level];
-    const struct section *parent_section = wctx->level ?
-        wctx->section[wctx->level-1] : NULL;
-
-    av_bprint_clear(&wctx->section_pbuf[wctx->level]);
-    if (parent_section &&
-        !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
-        def->nested_section[wctx->level] = 1;
-        av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
-                   wctx->section_pbuf[wctx->level-1].str,
-                   upcase_string(buf, sizeof(buf),
-                                 av_x_if_null(section->element_name, section->name)));
-    }
-
-    if (def->noprint_wrappers || def->nested_section[wctx->level])
-        return;
-
-    if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
-        printf("[%s]\n", upcase_string(buf, sizeof(buf), section->name));
-}
-
-static void default_print_section_footer(WriterContext *wctx)
-{
-    DefaultContext *def = wctx->priv;
-    const struct section *section = wctx->section[wctx->level];
-    char buf[32];
-
-    if (def->noprint_wrappers || def->nested_section[wctx->level])
-        return;
-
-    if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
-        printf("[/%s]\n", upcase_string(buf, sizeof(buf), section->name));
-}
-
-static void default_print_str(WriterContext *wctx, const char *key, const char *value)
-{
-    DefaultContext *def = wctx->priv;
-
-    if (!def->nokey)
-        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
-    printf("%s\n", value);
-}
-
-static void default_print_int(WriterContext *wctx, const char *key, long long int value)
-{
-    DefaultContext *def = wctx->priv;
-
-    if (!def->nokey)
-        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
-    printf("%lld\n", value);
-}
-
-static const Writer default_writer = {
-    .name                  = "default",
-    .priv_size             = sizeof(DefaultContext),
-    .print_section_header  = default_print_section_header,
-    .print_section_footer  = default_print_section_footer,
-    .print_integer         = default_print_int,
-    .print_string          = default_print_str,
-    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
-    .priv_class            = &default_class,
-};
-
-/* Compact output */
-
-/**
- * Apply C-language-like string escaping.
- */
-static const char *c_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
-{
-    const char *p;
-
-    for (p = src; *p; p++) {
-        switch (*p) {
-        case '\b': av_bprintf(dst, "%s", "\\b");  break;
-        case '\f': av_bprintf(dst, "%s", "\\f");  break;
-        case '\n': av_bprintf(dst, "%s", "\\n");  break;
-        case '\r': av_bprintf(dst, "%s", "\\r");  break;
-        case '\\': av_bprintf(dst, "%s", "\\\\"); break;
-        default:
-            if (*p == sep)
-                av_bprint_chars(dst, '\\', 1);
-            av_bprint_chars(dst, *p, 1);
-        }
-    }
-    return dst->str;
-}
-
-/**
- * Quote fields containing special characters, check RFC4180.
- */
-static const char *csv_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
-{
-    char meta_chars[] = { sep, '"', '\n', '\r', '\0' };
-    int needs_quoting = !!src[strcspn(src, meta_chars)];
-
-    if (needs_quoting)
-        av_bprint_chars(dst, '"', 1);
-
-    for (; *src; src++) {
-        if (*src == '"')
-            av_bprint_chars(dst, '"', 1);
-        av_bprint_chars(dst, *src, 1);
-    }
-    if (needs_quoting)
-        av_bprint_chars(dst, '"', 1);
-    return dst->str;
-}
-
-static const char *none_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
-{
-    return src;
-}
-
-typedef struct CompactContext {
-    const AVClass *class;
-    char *item_sep_str;
-    char item_sep;
-    int nokey;
-    int print_section;
-    char *escape_mode_str;
-    const char * (*escape_str)(AVBPrint *dst, const char *src, const char sep, void *log_ctx);
-    int nested_section[SECTION_MAX_NB_LEVELS];
-} CompactContext;
-
-#undef OFFSET
-#define OFFSET(x) offsetof(CompactContext, x)
-
-static const AVOption compact_options[]= {
-    {"item_sep", "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str="|"},  CHAR_MIN, CHAR_MAX },
-    {"s",        "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str="|"},  CHAR_MIN, CHAR_MAX },
-    {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_INT,    {.i64=0},    0,        1        },
-    {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_INT,    {.i64=0},    0,        1        },
-    {"escape",   "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"},  CHAR_MIN, CHAR_MAX },
-    {"e",        "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"},  CHAR_MIN, CHAR_MAX },
-    {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
-    {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
-    {NULL},
-};
-
-DEFINE_WRITER_CLASS(compact);
-
-static av_cold int compact_init(WriterContext *wctx)
-{
-    CompactContext *compact = wctx->priv;
-
-    if (strlen(compact->item_sep_str) != 1) {
-        av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
-               compact->item_sep_str);
-        return AVERROR(EINVAL);
-    }
-    compact->item_sep = compact->item_sep_str[0];
-
-    if      (!strcmp(compact->escape_mode_str, "none")) compact->escape_str = none_escape_str;
-    else if (!strcmp(compact->escape_mode_str, "c"   )) compact->escape_str = c_escape_str;
-    else if (!strcmp(compact->escape_mode_str, "csv" )) compact->escape_str = csv_escape_str;
-    else {
-        av_log(wctx, AV_LOG_ERROR, "Unknown escape mode '%s'\n", compact->escape_mode_str);
-        return AVERROR(EINVAL);
-    }
-
-    return 0;
-}
-
-static void compact_print_section_header(WriterContext *wctx)
-{
-    CompactContext *compact = wctx->priv;
-    const struct section *section = wctx->section[wctx->level];
-    const struct section *parent_section = wctx->level ?
-        wctx->section[wctx->level-1] : NULL;
-
-    av_bprint_clear(&wctx->section_pbuf[wctx->level]);
-    if (parent_section &&
-        !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
-        compact->nested_section[wctx->level] = 1;
-        av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
-                   wctx->section_pbuf[wctx->level-1].str,
-                   (char *)av_x_if_null(section->element_name, section->name));
-        wctx->nb_item[wctx->level] = wctx->nb_item[wctx->level-1];
-    } else if (compact->print_section &&
-        !(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
-       printf("%s%c", section->name, compact->item_sep);
-}
-
-static void compact_print_section_footer(WriterContext *wctx)
-{
-    CompactContext *compact = wctx->priv;
-
-    if (!compact->nested_section[wctx->level] &&
-        !(wctx->section[wctx->level]->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
-        printf("\n");
-}
-
-static void compact_print_str(WriterContext *wctx, const char *key, const char *value)
-{
-    CompactContext *compact = wctx->priv;
-    AVBPrint buf;
-
-    if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
-    if (!compact->nokey)
-        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
-    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
-    printf("%s", compact->escape_str(&buf, value, compact->item_sep, wctx));
-    av_bprint_finalize(&buf, NULL);
-}
-
-static void compact_print_int(WriterContext *wctx, const char *key, long long int value)
-{
-    CompactContext *compact = wctx->priv;
-
-    if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
-    if (!compact->nokey)
-        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
-    printf("%lld", value);
-}
-
-static const Writer compact_writer = {
-    .name                 = "compact",
-    .priv_size            = sizeof(CompactContext),
-    .init                 = compact_init,
-    .print_section_header = compact_print_section_header,
-    .print_section_footer = compact_print_section_footer,
-    .print_integer        = compact_print_int,
-    .print_string         = compact_print_str,
-    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
-    .priv_class           = &compact_class,
-};
-
-/* CSV output */
-
-#undef OFFSET
-#define OFFSET(x) offsetof(CompactContext, x)
-
-static const AVOption csv_options[] = {
-    {"item_sep", "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str=","},  CHAR_MIN, CHAR_MAX },
-    {"s",        "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str=","},  CHAR_MIN, CHAR_MAX },
-    {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
-    {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
-    {"escape",   "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, CHAR_MIN, CHAR_MAX },
-    {"e",        "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, CHAR_MIN, CHAR_MAX },
-    {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
-    {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
-    {NULL},
-};
-
-DEFINE_WRITER_CLASS(csv);
-
-static const Writer csv_writer = {
-    .name                 = "csv",
-    .priv_size            = sizeof(CompactContext),
-    .init                 = compact_init,
-    .print_section_header = compact_print_section_header,
-    .print_section_footer = compact_print_section_footer,
-    .print_integer        = compact_print_int,
-    .print_string         = compact_print_str,
-    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
-    .priv_class           = &csv_class,
-};
-
-/* Flat output */
-
-typedef struct FlatContext {
-    const AVClass *class;
-    const char *sep_str;
-    char sep;
-    int hierarchical;
-} FlatContext;
-
-#undef OFFSET
-#define OFFSET(x) offsetof(FlatContext, x)
-
-static const AVOption flat_options[]= {
-    {"sep_char", "set separator",    OFFSET(sep_str),    AV_OPT_TYPE_STRING, {.str="."},  CHAR_MIN, CHAR_MAX },
-    {"s",        "set separator",    OFFSET(sep_str),    AV_OPT_TYPE_STRING, {.str="."},  CHAR_MIN, CHAR_MAX },
-    {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 },
-    {"h",           "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 },
-    {NULL},
-};
-
-DEFINE_WRITER_CLASS(flat);
-
-static av_cold int flat_init(WriterContext *wctx)
-{
-    FlatContext *flat = wctx->priv;
-
-    if (strlen(flat->sep_str) != 1) {
-        av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
-               flat->sep_str);
-        return AVERROR(EINVAL);
-    }
-    flat->sep = flat->sep_str[0];
-
-    return 0;
-}
-
-static const char *flat_escape_key_str(AVBPrint *dst, const char *src, const char sep)
-{
-    const char *p;
-
-    for (p = src; *p; p++) {
-        if (!((*p >= '0' && *p <= '9') ||
-              (*p >= 'a' && *p <= 'z') ||
-              (*p >= 'A' && *p <= 'Z')))
-            av_bprint_chars(dst, '_', 1);
-        else
-            av_bprint_chars(dst, *p, 1);
-    }
-    return dst->str;
-}
-
-static const char *flat_escape_value_str(AVBPrint *dst, const char *src)
-{
-    const char *p;
-
-    for (p = src; *p; p++) {
-        switch (*p) {
-        case '\n': av_bprintf(dst, "%s", "\\n");  break;
-        case '\r': av_bprintf(dst, "%s", "\\r");  break;
-        case '\\': av_bprintf(dst, "%s", "\\\\"); break;
-        case '"':  av_bprintf(dst, "%s", "\\\""); break;
-        case '`':  av_bprintf(dst, "%s", "\\`");  break;
-        case '$':  av_bprintf(dst, "%s", "\\$");  break;
-        default:   av_bprint_chars(dst, *p, 1);   break;
-        }
-    }
-    return dst->str;
-}
-
-static void flat_print_section_header(WriterContext *wctx)
-{
-    FlatContext *flat = wctx->priv;
-    AVBPrint *buf = &wctx->section_pbuf[wctx->level];
-    const struct section *section = wctx->section[wctx->level];
-    const struct section *parent_section = wctx->level ?
-        wctx->section[wctx->level-1] : NULL;
-
-    /* build section header */
-    av_bprint_clear(buf);
-    if (!parent_section)
-        return;
-    av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
-
-    if (flat->hierarchical ||
-        !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) {
-        av_bprintf(buf, "%s%s", wctx->section[wctx->level]->name, flat->sep_str);
-
-        if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
-            int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
-                wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
-            av_bprintf(buf, "%d%s", n, flat->sep_str);
-        }
-    }
-}
-
-static void flat_print_int(WriterContext *wctx, const char *key, long long int value)
-{
-    printf("%s%s=%lld\n", wctx->section_pbuf[wctx->level].str, key, value);
-}
-
-static void flat_print_str(WriterContext *wctx, const char *key, const char *value)
-{
-    FlatContext *flat = wctx->priv;
-    AVBPrint buf;
-
-    printf("%s", wctx->section_pbuf[wctx->level].str);
-    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
-    printf("%s=", flat_escape_key_str(&buf, key, flat->sep));
-    av_bprint_clear(&buf);
-    printf("\"%s\"\n", flat_escape_value_str(&buf, value));
-    av_bprint_finalize(&buf, NULL);
-}
-
-static const Writer flat_writer = {
-    .name                  = "flat",
-    .priv_size             = sizeof(FlatContext),
-    .init                  = flat_init,
-    .print_section_header  = flat_print_section_header,
-    .print_integer         = flat_print_int,
-    .print_string          = flat_print_str,
-    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
-    .priv_class            = &flat_class,
-};
-
-/* INI format output */
-
-typedef struct {
-    const AVClass *class;
-    int hierarchical;
-} INIContext;
-
-#undef OFFSET
-#define OFFSET(x) offsetof(INIContext, x)
-
-static const AVOption ini_options[] = {
-    {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 },
-    {"h",           "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 },
-    {NULL},
-};
-
-DEFINE_WRITER_CLASS(ini);
-
-static char *ini_escape_str(AVBPrint *dst, const char *src)
-{
-    int i = 0;
-    char c = 0;
-
-    while (c = src[i++]) {
-        switch (c) {
-        case '\b': av_bprintf(dst, "%s", "\\b"); break;
-        case '\f': av_bprintf(dst, "%s", "\\f"); break;
-        case '\n': av_bprintf(dst, "%s", "\\n"); break;
-        case '\r': av_bprintf(dst, "%s", "\\r"); break;
-        case '\t': av_bprintf(dst, "%s", "\\t"); break;
-        case '\\':
-        case '#' :
-        case '=' :
-        case ':' : av_bprint_chars(dst, '\\', 1);
-        default:
-            if ((unsigned char)c < 32)
-                av_bprintf(dst, "\\x00%02x", c & 0xff);
-            else
-                av_bprint_chars(dst, c, 1);
-            break;
-        }
-    }
-    return dst->str;
-}
-
-static void ini_print_section_header(WriterContext *wctx)
-{
-    INIContext *ini = wctx->priv;
-    AVBPrint *buf = &wctx->section_pbuf[wctx->level];
-    const struct section *section = wctx->section[wctx->level];
-    const struct section *parent_section = wctx->level ?
-        wctx->section[wctx->level-1] : NULL;
-
-    av_bprint_clear(buf);
-    if (!parent_section) {
-        printf("# ffprobe output\n\n");
-        return;
-    }
-
-    if (wctx->nb_item[wctx->level-1])
-        printf("\n");
-
-    av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
-    if (ini->hierarchical ||
-        !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) {
-        av_bprintf(buf, "%s%s", buf->str[0] ? "." : "", wctx->section[wctx->level]->name);
-
-        if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
-            int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
-                wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
-            av_bprintf(buf, ".%d", n);
-        }
-    }
-
-    if (!(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER)))
-        printf("[%s]\n", buf->str);
-}
-
-static void ini_print_str(WriterContext *wctx, const char *key, const char *value)
-{
-    AVBPrint buf;
-
-    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
-    printf("%s=", ini_escape_str(&buf, key));
-    av_bprint_clear(&buf);
-    printf("%s\n", ini_escape_str(&buf, value));
-    av_bprint_finalize(&buf, NULL);
-}
-
-static void ini_print_int(WriterContext *wctx, const char *key, long long int value)
-{
-    printf("%s=%lld\n", key, value);
-}
-
-static const Writer ini_writer = {
-    .name                  = "ini",
-    .priv_size             = sizeof(INIContext),
-    .print_section_header  = ini_print_section_header,
-    .print_integer         = ini_print_int,
-    .print_string          = ini_print_str,
-    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
-    .priv_class            = &ini_class,
-};
-
-/* JSON output */
-
-typedef struct {
-    const AVClass *class;
-    int indent_level;
-    int compact;
-    const char *item_sep, *item_start_end;
-} JSONContext;
-
-#undef OFFSET
-#define OFFSET(x) offsetof(JSONContext, x)
-
-static const AVOption json_options[]= {
-    { "compact", "enable compact output", OFFSET(compact), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
-    { "c",       "enable compact output", OFFSET(compact), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
-    { NULL }
-};
-
-DEFINE_WRITER_CLASS(json);
-
-static av_cold int json_init(WriterContext *wctx)
-{
-    JSONContext *json = wctx->priv;
-
-    json->item_sep       = json->compact ? ", " : ",\n";
-    json->item_start_end = json->compact ? " "  : "\n";
-
-    return 0;
-}
-
-static const char *json_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
-{
-    static const char json_escape[] = {'"', '\\', '\b', '\f', '\n', '\r', '\t', 0};
-    static const char json_subst[]  = {'"', '\\',  'b',  'f',  'n',  'r',  't', 0};
-    const char *p;
-
-    for (p = src; *p; p++) {
-        char *s = strchr(json_escape, *p);
-        if (s) {
-            av_bprint_chars(dst, '\\', 1);
-            av_bprint_chars(dst, json_subst[s - json_escape], 1);
-        } else if ((unsigned char)*p < 32) {
-            av_bprintf(dst, "\\u00%02x", *p & 0xff);
-        } else {
-            av_bprint_chars(dst, *p, 1);
-        }
-    }
-    return dst->str;
-}
-
-#define JSON_INDENT() printf("%*c", json->indent_level * 4, ' ')
-
-static void json_print_section_header(WriterContext *wctx)
-{
-    JSONContext *json = wctx->priv;
-    AVBPrint buf;
-    const struct section *section = wctx->section[wctx->level];
-    const struct section *parent_section = wctx->level ?
-        wctx->section[wctx->level-1] : NULL;
-
-    if (wctx->level && wctx->nb_item[wctx->level-1])
-        printf(",\n");
-
-    if (section->flags & SECTION_FLAG_IS_WRAPPER) {
-        printf("{\n");
-        json->indent_level++;
-    } else {
-        av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
-        json_escape_str(&buf, section->name, wctx);
-        JSON_INDENT();
-
-        json->indent_level++;
-        if (section->flags & SECTION_FLAG_IS_ARRAY) {
-            printf("\"%s\": [\n", buf.str);
-        } else if (parent_section && !(parent_section->flags & SECTION_FLAG_IS_ARRAY)) {
-            printf("\"%s\": {%s", buf.str, json->item_start_end);
-        } else {
-            printf("{%s", json->item_start_end);
-
-            /* this is required so the parser can distinguish between packets and frames */
-            if (parent_section && parent_section->id == SECTION_ID_PACKETS_AND_FRAMES) {
-                if (!json->compact)
-                    JSON_INDENT();
-                printf("\"type\": \"%s\"%s", section->name, json->item_sep);
-            }
-        }
-        av_bprint_finalize(&buf, NULL);
-    }
-}
-
-static void json_print_section_footer(WriterContext *wctx)
-{
-    JSONContext *json = wctx->priv;
-    const struct section *section = wctx->section[wctx->level];
-
-    if (wctx->level == 0) {
-        json->indent_level--;
-        printf("\n}\n");
-    } else if (section->flags & SECTION_FLAG_IS_ARRAY) {
-        printf("\n");
-        json->indent_level--;
-        JSON_INDENT();
-        printf("]");
-    } else {
-        printf("%s", json->item_start_end);
-        json->indent_level--;
-        if (!json->compact)
-            JSON_INDENT();
-        printf("}");
-    }
-}
-
-static inline void json_print_item_str(WriterContext *wctx,
-                                       const char *key, const char *value)
-{
-    AVBPrint buf;
-
-    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
-    printf("\"%s\":", json_escape_str(&buf, key,   wctx));
-    av_bprint_clear(&buf);
-    printf(" \"%s\"", json_escape_str(&buf, value, wctx));
-    av_bprint_finalize(&buf, NULL);
-}
-
-static void json_print_str(WriterContext *wctx, const char *key, const char *value)
-{
-    JSONContext *json = wctx->priv;
-
-    if (wctx->nb_item[wctx->level])
-        printf("%s", json->item_sep);
-    if (!json->compact)
-        JSON_INDENT();
-    json_print_item_str(wctx, key, value);
-}
-
-static void json_print_int(WriterContext *wctx, const char *key, long long int value)
-{
-    JSONContext *json = wctx->priv;
-    AVBPrint buf;
-
-    if (wctx->nb_item[wctx->level])
-        printf("%s", json->item_sep);
-    if (!json->compact)
-        JSON_INDENT();
-
-    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
-    printf("\"%s\": %lld", json_escape_str(&buf, key, wctx), value);
-    av_bprint_finalize(&buf, NULL);
-}
-
-static const Writer json_writer = {
-    .name                 = "json",
-    .priv_size            = sizeof(JSONContext),
-    .init                 = json_init,
-    .print_section_header = json_print_section_header,
-    .print_section_footer = json_print_section_footer,
-    .print_integer        = json_print_int,
-    .print_string         = json_print_str,
-    .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
-    .priv_class           = &json_class,
-};
-
-/* XML output */
-
-typedef struct {
-    const AVClass *class;
-    int within_tag;
-    int indent_level;
-    int fully_qualified;
-    int xsd_strict;
-} XMLContext;
-
-#undef OFFSET
-#define OFFSET(x) offsetof(XMLContext, x)
-
-static const AVOption xml_options[] = {
-    {"fully_qualified", "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_INT, {.i64=0},  0, 1 },
-    {"q",               "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_INT, {.i64=0},  0, 1 },
-    {"xsd_strict",      "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_INT, {.i64=0},  0, 1 },
-    {"x",               "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_INT, {.i64=0},  0, 1 },
-    {NULL},
-};
-
-DEFINE_WRITER_CLASS(xml);
-
-static av_cold int xml_init(WriterContext *wctx)
-{
-    XMLContext *xml = wctx->priv;
-
-    if (xml->xsd_strict) {
-        xml->fully_qualified = 1;
-#define CHECK_COMPLIANCE(opt, opt_name)                                 \
-        if (opt) {                                                      \
-            av_log(wctx, AV_LOG_ERROR,                                  \
-                   "XSD-compliant output selected but option '%s' was selected, XML output may be non-compliant.\n" \
-                   "You need to disable such option with '-no%s'\n", opt_name, opt_name); \
-            return AVERROR(EINVAL);                                     \
-        }
-        CHECK_COMPLIANCE(show_private_data, "private");
-        CHECK_COMPLIANCE(show_value_unit,   "unit");
-        CHECK_COMPLIANCE(use_value_prefix,  "prefix");
-
-        if (do_show_frames && do_show_packets) {
-            av_log(wctx, AV_LOG_ERROR,
-                   "Interleaved frames and packets are not allowed in XSD. "
-                   "Select only one between the -show_frames and the -show_packets options.\n");
-            return AVERROR(EINVAL);
-        }
-    }
-
-    return 0;
-}
-
-static const char *xml_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
-{
-    const char *p;
-
-    for (p = src; *p; p++) {
-        switch (*p) {
-        case '&' : av_bprintf(dst, "%s", "&amp;");  break;
-        case '<' : av_bprintf(dst, "%s", "&lt;");   break;
-        case '>' : av_bprintf(dst, "%s", "&gt;");   break;
-        case '"' : av_bprintf(dst, "%s", "&quot;"); break;
-        case '\'': av_bprintf(dst, "%s", "&apos;"); break;
-        default: av_bprint_chars(dst, *p, 1);
-        }
-    }
-
-    return dst->str;
-}
-
-#define XML_INDENT() printf("%*c", xml->indent_level * 4, ' ')
-
-static void xml_print_section_header(WriterContext *wctx)
-{
-    XMLContext *xml = wctx->priv;
-    const struct section *section = wctx->section[wctx->level];
-    const struct section *parent_section = wctx->level ?
-        wctx->section[wctx->level-1] : NULL;
-
-    if (wctx->level == 0) {
-        const char *qual = " xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' "
-            "xmlns:ffprobe='http://www.ffmpeg.org/schema/ffprobe' "
-            "xsi:schemaLocation='http://www.ffmpeg.org/schema/ffprobe ffprobe.xsd'";
-
-        printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
-        printf("<%sffprobe%s>\n",
-               xml->fully_qualified ? "ffprobe:" : "",
-               xml->fully_qualified ? qual : "");
-        return;
-    }
-
-    if (xml->within_tag) {
-        xml->within_tag = 0;
-        printf(">\n");
-    }
-    if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
-        xml->indent_level++;
-    } else {
-        if (parent_section && (parent_section->flags & SECTION_FLAG_IS_WRAPPER) &&
-            wctx->level && wctx->nb_item[wctx->level-1])
-            printf("\n");
-        xml->indent_level++;
-
-        if (section->flags & SECTION_FLAG_IS_ARRAY) {
-            XML_INDENT(); printf("<%s>\n", section->name);
-        } else {
-            XML_INDENT(); printf("<%s ", section->name);
-            xml->within_tag = 1;
-        }
-    }
-}
-
-static void xml_print_section_footer(WriterContext *wctx)
-{
-    XMLContext *xml = wctx->priv;
-    const struct section *section = wctx->section[wctx->level];
-
-    if (wctx->level == 0) {
-        printf("</%sffprobe>\n", xml->fully_qualified ? "ffprobe:" : "");
-    } else if (xml->within_tag) {
-        xml->within_tag = 0;
-        printf("/>\n");
-        xml->indent_level--;
-    } else if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
-        xml->indent_level--;
-    } else {
-        XML_INDENT(); printf("</%s>\n", section->name);
-        xml->indent_level--;
-    }
-}
-
-static void xml_print_str(WriterContext *wctx, const char *key, const char *value)
-{
-    AVBPrint buf;
-    XMLContext *xml = wctx->priv;
-    const struct section *section = wctx->section[wctx->level];
-
-    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
-
-    if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
-        XML_INDENT();
-        printf("<%s key=\"%s\"",
-               section->element_name, xml_escape_str(&buf, key, wctx));
-        av_bprint_clear(&buf);
-        printf(" value=\"%s\"/>\n", xml_escape_str(&buf, value, wctx));
-    } else {
-        if (wctx->nb_item[wctx->level])
-            printf(" ");
-        printf("%s=\"%s\"", key, xml_escape_str(&buf, value, wctx));
-    }
-
-    av_bprint_finalize(&buf, NULL);
-}
-
-static void xml_print_int(WriterContext *wctx, const char *key, long long int value)
-{
-    if (wctx->nb_item[wctx->level])
-        printf(" ");
-    printf("%s=\"%lld\"", key, value);
-}
-
-static Writer xml_writer = {
-    .name                 = "xml",
-    .priv_size            = sizeof(XMLContext),
-    .init                 = xml_init,
-    .print_section_header = xml_print_section_header,
-    .print_section_footer = xml_print_section_footer,
-    .print_integer        = xml_print_int,
-    .print_string         = xml_print_str,
-    .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
-    .priv_class           = &xml_class,
-};
-
-static void writer_register_all(void)
-{
-    static int initialized;
-
-    if (initialized)
-        return;
-    initialized = 1;
-
-    writer_register(&default_writer);
-    writer_register(&compact_writer);
-    writer_register(&csv_writer);
-    writer_register(&flat_writer);
-    writer_register(&ini_writer);
-    writer_register(&json_writer);
-    writer_register(&xml_writer);
-}
-
-#define print_fmt(k, f, ...) do {              \
-    av_bprint_clear(&pbuf);                    \
-    av_bprintf(&pbuf, f, __VA_ARGS__);         \
-    writer_print_string(w, k, pbuf.str, 0);    \
-} while (0)
-
-#define print_int(k, v)         writer_print_integer(w, k, v)
-#define print_q(k, v, s)        writer_print_rational(w, k, v, s)
-#define print_str(k, v)         writer_print_string(w, k, v, 0)
-#define print_str_opt(k, v)     writer_print_string(w, k, v, 1)
-#define print_time(k, v, tb)    writer_print_time(w, k, v, tb, 0)
-#define print_ts(k, v)          writer_print_ts(w, k, v, 0)
-#define print_duration_time(k, v, tb) writer_print_time(w, k, v, tb, 1)
-#define print_duration_ts(k, v)       writer_print_ts(w, k, v, 1)
-#define print_val(k, v, u) do {                                     \
-    struct unit_value uv;                                           \
-    uv.val.i = v;                                                   \
-    uv.unit = u;                                                    \
-    writer_print_string(w, k, value_string(val_str, sizeof(val_str), uv), 0); \
-} while (0)
-
-#define print_section_header(s) writer_print_section_header(w, s)
-#define print_section_footer(s) writer_print_section_footer(w, s)
-
-static inline void show_tags(WriterContext *wctx, AVDictionary *tags, int section_id)
-{
-    AVDictionaryEntry *tag = NULL;
-
-    if (!tags)
-        return;
-    writer_print_section_header(wctx, section_id);
-    while ((tag = av_dict_get(tags, "", tag, AV_DICT_IGNORE_SUFFIX)))
-        writer_print_string(wctx, tag->key, tag->value, 0);
-    writer_print_section_footer(wctx);
-}
-
-static void show_packet(WriterContext *w, AVFormatContext *fmt_ctx, AVPacket *pkt, int packet_idx)
-{
-    char val_str[128];
-    AVStream *st = fmt_ctx->streams[pkt->stream_index];
-    AVBPrint pbuf;
-    const char *s;
-
-    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
-
-    writer_print_section_header(w, SECTION_ID_PACKET);
-
-    s = av_get_media_type_string(st->codec->codec_type);
-    if (s) print_str    ("codec_type", s);
-    else   print_str_opt("codec_type", "unknown");
-    print_int("stream_index",     pkt->stream_index);
-    print_ts  ("pts",             pkt->pts);
-    print_time("pts_time",        pkt->pts, &st->time_base);
-    print_ts  ("dts",             pkt->dts);
-    print_time("dts_time",        pkt->dts, &st->time_base);
-    print_duration_ts("duration",        pkt->duration);
-    print_duration_time("duration_time", pkt->duration, &st->time_base);
-    print_duration_ts("convergence_duration", pkt->convergence_duration);
-    print_duration_time("convergence_duration_time", pkt->convergence_duration, &st->time_base);
-    print_val("size",             pkt->size, unit_byte_str);
-    if (pkt->pos != -1) print_fmt    ("pos", "%"PRId64, pkt->pos);
-    else                print_str_opt("pos", "N/A");
-    print_fmt("flags", "%c",      pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_');
-    if (do_show_data)
-        writer_print_data(w, "data", pkt->data, pkt->size);
-    writer_print_section_footer(w);
-
-    av_bprint_finalize(&pbuf, NULL);
-    fflush(stdout);
-}
-
-static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream,
-                       AVFormatContext *fmt_ctx)
-{
-    AVBPrint pbuf;
-    const char *s;
-
-    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
-
-    writer_print_section_header(w, SECTION_ID_FRAME);
-
-    s = av_get_media_type_string(stream->codec->codec_type);
-    if (s) print_str    ("media_type", s);
-    else   print_str_opt("media_type", "unknown");
-    print_int("key_frame",              frame->key_frame);
-    print_ts  ("pkt_pts",               frame->pkt_pts);
-    print_time("pkt_pts_time",          frame->pkt_pts, &stream->time_base);
-    print_ts  ("pkt_dts",               frame->pkt_dts);
-    print_time("pkt_dts_time",          frame->pkt_dts, &stream->time_base);
-    print_duration_ts  ("pkt_duration",      av_frame_get_pkt_duration(frame));
-    print_duration_time("pkt_duration_time", av_frame_get_pkt_duration(frame), &stream->time_base);
-    if (av_frame_get_pkt_pos (frame) != -1) print_fmt    ("pkt_pos", "%"PRId64, av_frame_get_pkt_pos(frame));
-    else                      print_str_opt("pkt_pos", "N/A");
-    if (av_frame_get_pkt_size(frame) != -1) print_fmt    ("pkt_size", "%d", av_frame_get_pkt_size(frame));
-    else                       print_str_opt("pkt_size", "N/A");
-
-    switch (stream->codec->codec_type) {
-        AVRational sar;
-
-    case AVMEDIA_TYPE_VIDEO:
-        print_int("width",                  frame->width);
-        print_int("height",                 frame->height);
-        s = av_get_pix_fmt_name(frame->format);
-        if (s) print_str    ("pix_fmt", s);
-        else   print_str_opt("pix_fmt", "unknown");
-        sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, frame);
-        if (sar.num) {
-            print_q("sample_aspect_ratio", sar, ':');
-        } else {
-            print_str_opt("sample_aspect_ratio", "N/A");
-        }
-        print_fmt("pict_type",              "%c", av_get_picture_type_char(frame->pict_type));
-        print_int("coded_picture_number",   frame->coded_picture_number);
-        print_int("display_picture_number", frame->display_picture_number);
-        print_int("interlaced_frame",       frame->interlaced_frame);
-        print_int("top_field_first",        frame->top_field_first);
-        print_int("repeat_pict",            frame->repeat_pict);
-        break;
-
-    case AVMEDIA_TYPE_AUDIO:
-        s = av_get_sample_fmt_name(frame->format);
-        if (s) print_str    ("sample_fmt", s);
-        else   print_str_opt("sample_fmt", "unknown");
-        print_int("nb_samples",         frame->nb_samples);
-        print_int("channels", av_frame_get_channels(frame));
-        if (av_frame_get_channel_layout(frame)) {
-            av_bprint_clear(&pbuf);
-            av_bprint_channel_layout(&pbuf, av_frame_get_channels(frame),
-                                     av_frame_get_channel_layout(frame));
-            print_str    ("channel_layout", pbuf.str);
-        } else
-            print_str_opt("channel_layout", "unknown");
-        break;
-    }
-    show_tags(w, av_frame_get_metadata(frame), SECTION_ID_FRAME_TAGS);
-
-    writer_print_section_footer(w);
-
-    av_bprint_finalize(&pbuf, NULL);
-    fflush(stdout);
-}
-
-static av_always_inline int process_frame(WriterContext *w,
-                                          AVFormatContext *fmt_ctx,
-                                          AVFrame *frame, AVPacket *pkt)
-{
-    AVCodecContext *dec_ctx = fmt_ctx->streams[pkt->stream_index]->codec;
-    int ret = 0, got_frame = 0;
-
-    avcodec_get_frame_defaults(frame);
-    if (dec_ctx->codec) {
-        switch (dec_ctx->codec_type) {
-        case AVMEDIA_TYPE_VIDEO:
-            ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, pkt);
-            break;
-
-        case AVMEDIA_TYPE_AUDIO:
-            ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, pkt);
-            break;
-        }
-    }
-
-    if (ret < 0)
-        return ret;
-    ret = FFMIN(ret, pkt->size); /* guard against bogus return values */
-    pkt->data += ret;
-    pkt->size -= ret;
-    if (got_frame) {
-        nb_streams_frames[pkt->stream_index]++;
-        if (do_show_frames)
-            show_frame(w, frame, fmt_ctx->streams[pkt->stream_index], fmt_ctx);
-    }
-    return got_frame;
-}
-
-static void read_packets(WriterContext *w, AVFormatContext *fmt_ctx)
-{
-    AVPacket pkt, pkt1;
-    AVFrame frame;
-    int i = 0;
-
-    av_init_packet(&pkt);
-
-    while (!av_read_frame(fmt_ctx, &pkt)) {
-        if (selected_streams[pkt.stream_index]) {
-            if (do_read_packets) {
-                if (do_show_packets)
-                    show_packet(w, fmt_ctx, &pkt, i++);
-                nb_streams_packets[pkt.stream_index]++;
-            }
-            if (do_read_frames) {
-                pkt1 = pkt;
-                while (pkt1.size && process_frame(w, fmt_ctx, &frame, &pkt1) > 0);
-            }
-        }
-        av_free_packet(&pkt);
-    }
-    av_init_packet(&pkt);
-    pkt.data = NULL;
-    pkt.size = 0;
-    //Flush remaining frames that are cached in the decoder
-    for (i = 0; i < fmt_ctx->nb_streams; i++) {
-        pkt.stream_index = i;
-        if (do_read_frames)
-            while (process_frame(w, fmt_ctx, &frame, &pkt) > 0);
-    }
-}
-
-static void show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx)
-{
-    AVStream *stream = fmt_ctx->streams[stream_idx];
-    AVCodecContext *dec_ctx;
-    const AVCodec *dec;
-    char val_str[128];
-    const char *s;
-    AVRational sar, dar;
-    AVBPrint pbuf;
-
-    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
-
-    writer_print_section_header(w, SECTION_ID_STREAM);
-
-    print_int("index", stream->index);
-
-    if ((dec_ctx = stream->codec)) {
-        const char *profile = NULL;
-        dec = dec_ctx->codec;
-        if (dec) {
-            print_str("codec_name", dec->name);
-            if (!do_bitexact) {
-                if (dec->long_name) print_str    ("codec_long_name", dec->long_name);
-                else                print_str_opt("codec_long_name", "unknown");
-            }
-        } else {
-            print_str_opt("codec_name", "unknown");
-            if (!do_bitexact) {
-                print_str_opt("codec_long_name", "unknown");
-            }
-        }
-
-        if (dec && (profile = av_get_profile_name(dec, dec_ctx->profile)))
-            print_str("profile", profile);
-        else
-            print_str_opt("profile", "unknown");
-
-        s = av_get_media_type_string(dec_ctx->codec_type);
-        if (s) print_str    ("codec_type", s);
-        else   print_str_opt("codec_type", "unknown");
-        print_q("codec_time_base", dec_ctx->time_base, '/');
-
-        /* print AVI/FourCC tag */
-        av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag);
-        print_str("codec_tag_string",    val_str);
-        print_fmt("codec_tag", "0x%04x", dec_ctx->codec_tag);
-
-        switch (dec_ctx->codec_type) {
-        case AVMEDIA_TYPE_VIDEO:
-            print_int("width",        dec_ctx->width);
-            print_int("height",       dec_ctx->height);
-            print_int("has_b_frames", dec_ctx->has_b_frames);
-            sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, NULL);
-            if (sar.den) {
-                print_q("sample_aspect_ratio", sar, ':');
-                av_reduce(&dar.num, &dar.den,
-                          dec_ctx->width  * sar.num,
-                          dec_ctx->height * sar.den,
-                          1024*1024);
-                print_q("display_aspect_ratio", dar, ':');
-            } else {
-                print_str_opt("sample_aspect_ratio", "N/A");
-                print_str_opt("display_aspect_ratio", "N/A");
-            }
-            s = av_get_pix_fmt_name(dec_ctx->pix_fmt);
-            if (s) print_str    ("pix_fmt", s);
-            else   print_str_opt("pix_fmt", "unknown");
-            print_int("level",   dec_ctx->level);
-            if (dec_ctx->timecode_frame_start >= 0) {
-                char tcbuf[AV_TIMECODE_STR_SIZE];
-                av_timecode_make_mpeg_tc_string(tcbuf, dec_ctx->timecode_frame_start);
-                print_str("timecode", tcbuf);
-            } else {
-                print_str_opt("timecode", "N/A");
-            }
-            break;
-
-        case AVMEDIA_TYPE_AUDIO:
-            s = av_get_sample_fmt_name(dec_ctx->sample_fmt);
-            if (s) print_str    ("sample_fmt", s);
-            else   print_str_opt("sample_fmt", "unknown");
-            print_val("sample_rate",     dec_ctx->sample_rate, unit_hertz_str);
-            print_int("channels",        dec_ctx->channels);
-            print_int("bits_per_sample", av_get_bits_per_sample(dec_ctx->codec_id));
-            break;
-        }
-    } else {
-        print_str_opt("codec_type", "unknown");
-    }
-    if (dec_ctx->codec && dec_ctx->codec->priv_class && show_private_data) {
-        const AVOption *opt = NULL;
-        while (opt = av_opt_next(dec_ctx->priv_data,opt)) {
-            uint8_t *str;
-            if (opt->flags) continue;
-            if (av_opt_get(dec_ctx->priv_data, opt->name, 0, &str) >= 0) {
-                print_str(opt->name, str);
-                av_free(str);
-            }
-        }
-    }
-
-    if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) print_fmt    ("id", "0x%x", stream->id);
-    else                                          print_str_opt("id", "N/A");
-    print_q("r_frame_rate",   stream->r_frame_rate,   '/');
-    print_q("avg_frame_rate", stream->avg_frame_rate, '/');
-    print_q("time_base",      stream->time_base,      '/');
-    print_ts  ("start_pts",   stream->start_time);
-    print_time("start_time",  stream->start_time, &stream->time_base);
-    print_ts  ("duration_ts", stream->duration);
-    print_time("duration",    stream->duration, &stream->time_base);
-    if (dec_ctx->bit_rate > 0) print_val    ("bit_rate", dec_ctx->bit_rate, unit_bit_per_second_str);
-    else                       print_str_opt("bit_rate", "N/A");
-    if (stream->nb_frames) print_fmt    ("nb_frames", "%"PRId64, stream->nb_frames);
-    else                   print_str_opt("nb_frames", "N/A");
-    if (nb_streams_frames[stream_idx])  print_fmt    ("nb_read_frames", "%"PRIu64, nb_streams_frames[stream_idx]);
-    else                                print_str_opt("nb_read_frames", "N/A");
-    if (nb_streams_packets[stream_idx]) print_fmt    ("nb_read_packets", "%"PRIu64, nb_streams_packets[stream_idx]);
-    else                                print_str_opt("nb_read_packets", "N/A");
-    if (do_show_data)
-        writer_print_data(w, "extradata", dec_ctx->extradata,
-                                          dec_ctx->extradata_size);
-
-    /* Print disposition information */
-#define PRINT_DISPOSITION(flagname, name) do {                                \
-        print_int(name, !!(stream->disposition & AV_DISPOSITION_##flagname)); \
-    } while (0)
-
-    if (do_show_stream_disposition) {
-    writer_print_section_header(w, SECTION_ID_STREAM_DISPOSITION);
-    PRINT_DISPOSITION(DEFAULT,          "default");
-    PRINT_DISPOSITION(DUB,              "dub");
-    PRINT_DISPOSITION(ORIGINAL,         "original");
-    PRINT_DISPOSITION(COMMENT,          "comment");
-    PRINT_DISPOSITION(LYRICS,           "lyrics");
-    PRINT_DISPOSITION(KARAOKE,          "karaoke");
-    PRINT_DISPOSITION(FORCED,           "forced");
-    PRINT_DISPOSITION(HEARING_IMPAIRED, "hearing_impaired");
-    PRINT_DISPOSITION(VISUAL_IMPAIRED,  "visual_impaired");
-    PRINT_DISPOSITION(CLEAN_EFFECTS,    "clean_effects");
-    PRINT_DISPOSITION(ATTACHED_PIC,     "attached_pic");
-    writer_print_section_footer(w);
-    }
-
-    show_tags(w, stream->metadata, SECTION_ID_STREAM_TAGS);
-
-    writer_print_section_footer(w);
-    av_bprint_finalize(&pbuf, NULL);
-    fflush(stdout);
-}
-
-static void show_streams(WriterContext *w, AVFormatContext *fmt_ctx)
-{
-    int i;
-    writer_print_section_header(w, SECTION_ID_STREAMS);
-    for (i = 0; i < fmt_ctx->nb_streams; i++)
-        if (selected_streams[i])
-            show_stream(w, fmt_ctx, i);
-    writer_print_section_footer(w);
-}
-
-static void show_format(WriterContext *w, AVFormatContext *fmt_ctx)
-{
-    char val_str[128];
-    int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1;
-
-    writer_print_section_header(w, SECTION_ID_FORMAT);
-    print_str("filename",         fmt_ctx->filename);
-    print_int("nb_streams",       fmt_ctx->nb_streams);
-    print_str("format_name",      fmt_ctx->iformat->name);
-    if (!do_bitexact) {
-        if (fmt_ctx->iformat->long_name) print_str    ("format_long_name", fmt_ctx->iformat->long_name);
-        else                             print_str_opt("format_long_name", "unknown");
-    }
-    print_time("start_time",      fmt_ctx->start_time, &AV_TIME_BASE_Q);
-    print_time("duration",        fmt_ctx->duration,   &AV_TIME_BASE_Q);
-    if (size >= 0) print_val    ("size", size, unit_byte_str);
-    else           print_str_opt("size", "N/A");
-    if (fmt_ctx->bit_rate > 0) print_val    ("bit_rate", fmt_ctx->bit_rate, unit_bit_per_second_str);
-    else                       print_str_opt("bit_rate", "N/A");
-    show_tags(w, fmt_ctx->metadata, SECTION_ID_FORMAT_TAGS);
-
-    writer_print_section_footer(w);
-    fflush(stdout);
-}
-
-static void show_error(WriterContext *w, int err)
-{
-    char errbuf[128];
-    const char *errbuf_ptr = errbuf;
-
-    if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
-        errbuf_ptr = strerror(AVUNERROR(err));
-
-    writer_print_section_header(w, SECTION_ID_ERROR);
-    print_int("code", err);
-    print_str("string", errbuf_ptr);
-    writer_print_section_footer(w);
-}
-
-static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
-{
-    int err, i, orig_nb_streams;
-    AVFormatContext *fmt_ctx = NULL;
-    AVDictionaryEntry *t;
-    AVDictionary **opts;
-
-    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 */
-    opts = setup_find_stream_info_opts(fmt_ctx, codec_opts);
-    orig_nb_streams = fmt_ctx->nb_streams;
-
-    if ((err = avformat_find_stream_info(fmt_ctx, opts)) < 0) {
-        print_error(filename, err);
-        return err;
-    }
-    for (i = 0; i < orig_nb_streams; i++)
-        av_dict_free(&opts[i]);
-    av_freep(&opts);
-
-    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) {
-            av_log(NULL, AV_LOG_ERROR,
-                   "Failed to probe codec for input stream %d\n",
-                    stream->index);
-        } else if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
-            av_log(NULL, AV_LOG_ERROR,
-                    "Unsupported codec with id %d for input stream %d\n",
-                    stream->codec->codec_id, stream->index);
-        } else {
-            AVDictionary *opts = filter_codec_opts(codec_opts, stream->codec->codec_id,
-                                                   fmt_ctx, stream, codec);
-            if (avcodec_open2(stream->codec, codec, &opts) < 0) {
-                av_log(NULL, AV_LOG_ERROR, "Error while opening codec for input stream %d\n",
-                       stream->index);
-            }
-            if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
-                av_log(NULL, AV_LOG_ERROR, "Option %s for input stream %d not found\n",
-                       t->key, stream->index);
-                return AVERROR_OPTION_NOT_FOUND;
-            }
-        }
-    }
-
-    *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++)
-        if (fmt_ctx->streams[i]->codec->codec_id != AV_CODEC_ID_NONE)
-            avcodec_close(fmt_ctx->streams[i]->codec);
-
-    avformat_close_input(ctx_ptr);
-}
-
-static int probe_file(WriterContext *wctx, const char *filename)
-{
-    AVFormatContext *fmt_ctx;
-    int ret, i;
-    int section_id;
-
-    do_read_frames = do_show_frames || do_count_frames;
-    do_read_packets = do_show_packets || do_count_packets;
-
-    ret = open_input_file(&fmt_ctx, filename);
-    if (ret >= 0) {
-        nb_streams_frames  = av_calloc(fmt_ctx->nb_streams, sizeof(*nb_streams_frames));
-        nb_streams_packets = av_calloc(fmt_ctx->nb_streams, sizeof(*nb_streams_packets));
-        selected_streams   = av_calloc(fmt_ctx->nb_streams, sizeof(*selected_streams));
-
-        for (i = 0; i < fmt_ctx->nb_streams; i++) {
-            if (stream_specifier) {
-                ret = avformat_match_stream_specifier(fmt_ctx,
-                                                      fmt_ctx->streams[i],
-                                                      stream_specifier);
-                if (ret < 0)
-                    goto end;
-                else
-                    selected_streams[i] = ret;
-            } else {
-                selected_streams[i] = 1;
-            }
-        }
-
-        if (do_read_frames || do_read_packets) {
-            if (do_show_frames && do_show_packets &&
-                wctx->writer->flags & WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER)
-                section_id = SECTION_ID_PACKETS_AND_FRAMES;
-            else if (do_show_packets && !do_show_frames)
-                section_id = SECTION_ID_PACKETS;
-            else // (!do_show_packets && do_show_frames)
-                section_id = SECTION_ID_FRAMES;
-            if (do_show_frames || do_show_packets)
-                writer_print_section_header(wctx, section_id);
-            read_packets(wctx, fmt_ctx);
-            if (do_show_frames || do_show_packets)
-                writer_print_section_footer(wctx);
-        }
-        if (do_show_streams)
-            show_streams(wctx, fmt_ctx);
-        if (do_show_format)
-            show_format(wctx, fmt_ctx);
-
-    end:
-        close_input_file(&fmt_ctx);
-        av_freep(&nb_streams_frames);
-        av_freep(&nb_streams_packets);
-        av_freep(&selected_streams);
-    }
-    return ret;
-}
-
-static void show_usage(void)
-{
-    av_log(NULL, AV_LOG_INFO, "Simple multimedia streams analyzer\n");
-    av_log(NULL, AV_LOG_INFO, "usage: %s [OPTIONS] [INPUT_FILE]\n", program_name);
-    av_log(NULL, AV_LOG_INFO, "\n");
-}
-
-static void ffprobe_show_program_version(WriterContext *w)
-{
-    AVBPrint pbuf;
-    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
-
-    writer_print_section_header(w, SECTION_ID_PROGRAM_VERSION);
-    print_str("version", FFMPEG_VERSION);
-    print_fmt("copyright", "Copyright (c) %d-%d the FFmpeg developers",
-              program_birth_year, this_year);
-    print_str("build_date", __DATE__);
-    print_str("build_time", __TIME__);
-    print_str("compiler_ident", CC_IDENT);
-    print_str("configuration", FFMPEG_CONFIGURATION);
-    writer_print_section_footer(w);
-
-    av_bprint_finalize(&pbuf, NULL);
-}
-
-#define SHOW_LIB_VERSION(libname, LIBNAME)                              \
-    do {                                                                \
-        if (CONFIG_##LIBNAME) {                                         \
-            unsigned int version = libname##_version();                 \
-            writer_print_section_header(w, SECTION_ID_LIBRARY_VERSION); \
-            print_str("name",    "lib" #libname);                       \
-            print_int("major",   LIB##LIBNAME##_VERSION_MAJOR);         \
-            print_int("minor",   LIB##LIBNAME##_VERSION_MINOR);         \
-            print_int("micro",   LIB##LIBNAME##_VERSION_MICRO);         \
-            print_int("version", version);                              \
-            print_str("ident",   LIB##LIBNAME##_IDENT);                 \
-            writer_print_section_footer(w);                             \
-        }                                                               \
-    } while (0)
-
-static void ffprobe_show_library_versions(WriterContext *w)
-{
-    writer_print_section_header(w, SECTION_ID_LIBRARY_VERSIONS);
-    SHOW_LIB_VERSION(avutil,     AVUTIL);
-    SHOW_LIB_VERSION(avcodec,    AVCODEC);
-    SHOW_LIB_VERSION(avformat,   AVFORMAT);
-    SHOW_LIB_VERSION(avdevice,   AVDEVICE);
-    SHOW_LIB_VERSION(avfilter,   AVFILTER);
-    SHOW_LIB_VERSION(swscale,    SWSCALE);
-    SHOW_LIB_VERSION(swresample, SWRESAMPLE);
-    SHOW_LIB_VERSION(postproc,   POSTPROC);
-    writer_print_section_footer(w);
-}
-
-static int opt_format(void *optctx, const char *opt, const char *arg)
-{
-    iformat = av_find_input_format(arg);
-    if (!iformat) {
-        av_log(NULL, AV_LOG_ERROR, "Unknown input format: %s\n", arg);
-        return AVERROR(EINVAL);
-    }
-    return 0;
-}
-
-static inline void mark_section_show_entries(SectionID section_id,
-                                             int show_all_entries, AVDictionary *entries)
-{
-    struct section *section = &sections[section_id];
-
-    section->show_all_entries = show_all_entries;
-    if (show_all_entries) {
-        SectionID *id;
-        for (id = section->children_ids; *id != -1; id++)
-            mark_section_show_entries(*id, show_all_entries, entries);
-    } else {
-        av_dict_copy(&section->entries_to_show, entries, 0);
-    }
-}
-
-static int match_section(const char *section_name,
-                         int show_all_entries, AVDictionary *entries)
-{
-    int i, ret = 0;
-
-    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++) {
-        const struct section *section = &sections[i];
-        if (!strcmp(section_name, section->name) ||
-            (section->unique_name && !strcmp(section_name, section->unique_name))) {
-            av_log(NULL, AV_LOG_DEBUG,
-                   "'%s' matches section with unique name '%s'\n", section_name,
-                   (char *)av_x_if_null(section->unique_name, section->name));
-            ret++;
-            mark_section_show_entries(section->id, show_all_entries, entries);
-        }
-    }
-    return ret;
-}
-
-static int opt_show_entries(void *optctx, const char *opt, const char *arg)
-{
-    const char *p = arg;
-    int ret = 0;
-
-    while (*p) {
-        AVDictionary *entries = NULL;
-        char *section_name = av_get_token(&p, "=:");
-        int show_all_entries = 0;
-
-        if (!section_name) {
-            av_log(NULL, AV_LOG_ERROR,
-                   "Missing section name for option '%s'\n", opt);
-            return AVERROR(EINVAL);
-        }
-
-        if (*p == '=') {
-            p++;
-            while (*p && *p != ':') {
-                char *entry = av_get_token(&p, ",:");
-                if (!entry)
-                    break;
-                av_log(NULL, AV_LOG_VERBOSE,
-                       "Adding '%s' to the entries to show in section '%s'\n",
-                       entry, section_name);
-                av_dict_set(&entries, entry, "", AV_DICT_DONT_STRDUP_KEY);
-                if (*p == ',')
-                    p++;
-            }
-        } else {
-            show_all_entries = 1;
-        }
-
-        ret = match_section(section_name, show_all_entries, entries);
-        if (ret == 0) {
-            av_log(NULL, AV_LOG_ERROR, "No match for section '%s'\n", section_name);
-            ret = AVERROR(EINVAL);
-        }
-        av_dict_free(&entries);
-        av_free(section_name);
-
-        if (ret <= 0)
-            break;
-        if (*p)
-            p++;
-    }
-
-    return ret;
-}
-
-static int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
-{
-    char *buf = av_asprintf("format=%s", arg);
-    int ret;
-
-    av_log(NULL, AV_LOG_WARNING,
-           "Option '%s' is deprecated, use '-show_entries format=%s' instead\n",
-           opt, arg);
-    ret = opt_show_entries(optctx, opt, buf);
-    av_free(buf);
-    return ret;
-}
-
-static void opt_input_file(void *optctx, const char *arg)
-{
-    if (input_filename) {
-        av_log(NULL, AV_LOG_ERROR,
-                "Argument '%s' provided as input filename, but '%s' was already specified.\n",
-                arg, input_filename);
-        exit(1);
-    }
-    if (!strcmp(arg, "-"))
-        arg = "pipe:";
-    input_filename = arg;
-}
-
-static int opt_input_file_i(void *optctx, const char *opt, const char *arg)
-{
-    opt_input_file(optctx, arg);
-    return 0;
-}
-
-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 void print_section(SectionID id, int level)
-{
-    const SectionID *pid;
-    const struct section *section = &sections[id];
-    printf("%c%c%c",
-           section->flags & SECTION_FLAG_IS_WRAPPER           ? 'W' : '.',
-           section->flags & SECTION_FLAG_IS_ARRAY             ? 'A' : '.',
-           section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS  ? 'V' : '.');
-    printf("%*c  %s", level * 4, ' ', section->name);
-    if (section->unique_name)
-        printf("/%s", section->unique_name);
-    printf("\n");
-
-    for (pid = section->children_ids; *pid != -1; pid++)
-        print_section(*pid, level+1);
-}
-
-static int opt_sections(void *optctx, const char *opt, const char *arg)
-{
-    printf("Sections:\n"
-           "W.. = Section is a wrapper (contains other sections, no local entries)\n"
-           ".A. = Section contains an array of elements of the same type\n"
-           "..V = Section may contain a variable number of fields with variable keys\n"
-           "FLAGS NAME/UNIQUE_NAME\n"
-           "---\n");
-    print_section(SECTION_ID_ROOT, 0);
-    return 0;
-}
-
-static int opt_show_versions(const char *opt, const char *arg)
-{
-    mark_section_show_entries(SECTION_ID_PROGRAM_VERSION, 1, NULL);
-    mark_section_show_entries(SECTION_ID_LIBRARY_VERSION, 1, NULL);
-    return 0;
-}
-
-#define DEFINE_OPT_SHOW_SECTION(section, target_section_id)             \
-    static int opt_show_##section(const char *opt, const char *arg)     \
-    {                                                                   \
-        mark_section_show_entries(SECTION_ID_##target_section_id, 1, NULL); \
-        return 0;                                                       \
-    }
-
-DEFINE_OPT_SHOW_SECTION(error,            ERROR);
-DEFINE_OPT_SHOW_SECTION(format,           FORMAT);
-DEFINE_OPT_SHOW_SECTION(frames,           FRAMES);
-DEFINE_OPT_SHOW_SECTION(library_versions, LIBRARY_VERSIONS);
-DEFINE_OPT_SHOW_SECTION(packets,          PACKETS);
-DEFINE_OPT_SHOW_SECTION(program_version,  PROGRAM_VERSION);
-DEFINE_OPT_SHOW_SECTION(streams,          STREAMS);
-
-static const OptionDef real_options[] = {
-#include "cmdutils_common_opts.h"
-    { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "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" },
-    { "print_format", OPT_STRING | HAS_ARG, {(void*)&print_format},
-      "set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml)", "format" },
-    { "of", OPT_STRING | HAS_ARG, {(void*)&print_format}, "alias for -print_format", "format" },
-    { "select_streams", OPT_STRING | HAS_ARG, {(void*)&stream_specifier}, "select the specified streams", "stream_specifier" },
-    { "sections", OPT_EXIT, {.func_arg = opt_sections}, "print sections structure and section information, and exit" },
-    { "show_data",    OPT_BOOL, {(void*)&do_show_data}, "show packets data" },
-    { "show_error",   0, {(void*)&opt_show_error},  "show probing error" },
-    { "show_format",  0, {(void*)&opt_show_format}, "show format/container info" },
-    { "show_frames",  0, {(void*)&opt_show_frames}, "show frames info" },
-    { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry},
-      "show a particular entry from the format/container info", "entry" },
-    { "show_entries", HAS_ARG, {.func_arg = opt_show_entries},
-      "show a set of specified entries", "entry_list" },
-    { "show_packets", 0, {(void*)&opt_show_packets}, "show packets info" },
-    { "show_streams", 0, {(void*)&opt_show_streams}, "show streams info" },
-    { "count_frames", OPT_BOOL, {(void*)&do_count_frames}, "count the number of frames per stream" },
-    { "count_packets", OPT_BOOL, {(void*)&do_count_packets}, "count the number of packets per stream" },
-    { "show_program_version",  0, {(void*)&opt_show_program_version},  "show ffprobe version" },
-    { "show_library_versions", 0, {(void*)&opt_show_library_versions}, "show library versions" },
-    { "show_versions",         0, {(void*)&opt_show_versions}, "show program and library versions" },
-    { "show_private_data", OPT_BOOL, {(void*)&show_private_data}, "show private data" },
-    { "private",           OPT_BOOL, {(void*)&show_private_data}, "same as show_private_data" },
-    { "bitexact", OPT_BOOL, {&do_bitexact}, "force bitexact output" },
-    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, "generic catch all option", "" },
-    { "i", HAS_ARG, {.func_arg = opt_input_file_i}, "read specified file", "input_file"},
-    { NULL, },
-};
-
-static inline int check_section_show_entries(int section_id)
-{
-    int *id;
-    struct section *section = &sections[section_id];
-    if (sections[section_id].show_all_entries || sections[section_id].entries_to_show)
-        return 1;
-    for (id = section->children_ids; *id != -1; id++)
-        if (check_section_show_entries(*id))
-            return 1;
-    return 0;
-}
-
-#define SET_DO_SHOW(id, varname) do {                                   \
-        if (check_section_show_entries(SECTION_ID_##id))                \
-            do_show_##varname = 1;                                      \
-    } while (0)
-
-int main(int argc, char **argv)
-{
-    const Writer *w;
-    WriterContext *wctx;
-    char *buf;
-    char *w_name = NULL, *w_args = NULL;
-    int ret, i;
-
-    av_log_set_flags(AV_LOG_SKIP_REPEATED);
-    atexit(exit_program);
-
-    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(argc, argv, options);
-    parse_options(NULL, argc, argv, options, opt_input_file);
-
-    /* mark things to show, based on -show_entries */
-    SET_DO_SHOW(ERROR, error);
-    SET_DO_SHOW(FORMAT, format);
-    SET_DO_SHOW(FRAMES, frames);
-    SET_DO_SHOW(LIBRARY_VERSIONS, library_versions);
-    SET_DO_SHOW(PACKETS, packets);
-    SET_DO_SHOW(PROGRAM_VERSION, program_version);
-    SET_DO_SHOW(STREAMS, streams);
-    SET_DO_SHOW(STREAM_DISPOSITION, stream_disposition);
-
-    if (do_bitexact && (do_show_program_version || do_show_library_versions)) {
-        av_log(NULL, AV_LOG_ERROR,
-               "-bitexact and -show_program_version or -show_library_versions "
-               "options are incompatible\n");
-        ret = AVERROR(EINVAL);
-        goto end;
-    }
-
-    writer_register_all();
-
-    if (!print_format)
-        print_format = av_strdup("default");
-    if (!print_format) {
-        ret = AVERROR(ENOMEM);
-        goto end;
-    }
-    w_name = av_strtok(print_format, "=", &buf);
-    w_args = buf;
-
-    w = writer_get_by_name(w_name);
-    if (!w) {
-        av_log(NULL, AV_LOG_ERROR, "Unknown output format with name '%s'\n", w_name);
-        ret = AVERROR(EINVAL);
-        goto end;
-    }
-
-    if ((ret = writer_open(&wctx, w, w_args,
-                           sections, FF_ARRAY_ELEMS(sections))) >= 0) {
-        writer_print_section_header(wctx, SECTION_ID_ROOT);
-
-        if (do_show_program_version)
-            ffprobe_show_program_version(wctx);
-        if (do_show_library_versions)
-            ffprobe_show_library_versions(wctx);
-
-        if (!input_filename &&
-            ((do_show_format || do_show_streams || do_show_packets || do_show_error) ||
-             (!do_show_program_version && !do_show_library_versions))) {
-            show_usage();
-            av_log(NULL, AV_LOG_ERROR, "You have to specify one input file.\n");
-            av_log(NULL, AV_LOG_ERROR, "Use -h to get full help or, even better, run 'man %s'.\n", program_name);
-            ret = AVERROR(EINVAL);
-        } else if (input_filename) {
-            ret = probe_file(wctx, input_filename);
-            if (ret < 0 && do_show_error)
-                show_error(wctx, ret);
-        }
-
-        writer_print_section_footer(wctx);
-        writer_close(&wctx);
-    }
-
-end:
-    av_freep(&print_format);
-
-    uninit_opts();
-    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
-        av_dict_free(&(sections[i].entries_to_show));
-
-    avformat_network_deinit();
-
-    return ret;
-}