--- /dev/null
- static void exit_program(void)
+/*
+ * 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_chapters = 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_CHAPTER,
+ SECTION_ID_CHAPTER_TAGS,
+ SECTION_ID_CHAPTERS,
+ 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_CHAPTERS] = { SECTION_ID_CHAPTERS, "chapters", SECTION_FLAG_IS_ARRAY, { SECTION_ID_CHAPTER, -1 } },
+ [SECTION_ID_CHAPTER] = { SECTION_ID_CHAPTER, "chapter", 0, { SECTION_ID_CHAPTER_TAGS, -1 } },
+ [SECTION_ID_CHAPTER_TAGS] = { SECTION_ID_CHAPTER_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "chapter_tags" },
+ [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_CHAPTERS, 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;
+
- exit(1);
++static void ffprobe_cleanup(int ret)
+{
+ 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", "&"); 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);
+ }
+ }
+
+ 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_chapters(WriterContext *w, AVFormatContext *fmt_ctx)
+{
+ int i;
+
+ writer_print_section_header(w, SECTION_ID_CHAPTERS);
+ for (i = 0; i < fmt_ctx->nb_chapters; i++) {
+ AVChapter *chapter = fmt_ctx->chapters[i];
+
+ writer_print_section_header(w, SECTION_ID_CHAPTER);
+ print_int("id", chapter->id);
+ print_q ("time_base", chapter->time_base, '/');
+ print_int("start", chapter->start);
+ print_time("start_time", chapter->start, &chapter->time_base);
+ print_int("end", chapter->end);
+ print_time("end_time", chapter->end, &chapter->time_base);
+ show_tags(w, chapter->metadata, SECTION_ID_CHAPTER_TAGS);
+ writer_print_section_footer(w);
+ }
+ 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)
+ return ret;
+
+ 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;
+ ret = 0;
+ } 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_chapters)
+ show_chapters(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 = §ions[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(§ion->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 = §ions[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);
- atexit(exit_program);
++ exit_program(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 = §ions[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(chapters, CHAPTERS);
+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" },
+ { "show_chapters", 0, {(void*)&opt_show_chapters}, "show chapters 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 = §ions[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);
++ register_exit(ffprobe_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(argc, argv, options);
+ parse_options(NULL, argc, argv, options, opt_input_file);
+
+ /* mark things to show, based on -show_entries */
+ SET_DO_SHOW(CHAPTERS, chapters);
+ 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_chapters || 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 < 0;
+}
OSDN Git Service
