virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
Code Issues Releases Activity
8d0e871f25
FFmpeg/ffprobe.c
Stefano Sabatini 8d0e871f25 ffprobe: kill initializers with nested union field definition 
The c99-to-c89 converter (for MSVC support) doesn't currently handle
designated initializers or compound literals with nested unions or
structs.

This is apparently the only place where this construct is used in the
FFmpeg codebase.
2012-09-14 10:47:08 +02:00

2119 lines
71 KiB
C
Raw Blame History

/*
* 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 "libavformat/avformat.h"
#include "libavcodec/avcodec.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_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 AVDictionary *fmt_entries_to_show = NULL;
static int do_show_packets = 0;
static int do_show_streams = 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 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;
void av_noreturn exit_program(int ret)
{
av_dict_free(&fmt_entries_to_show);
exit(ret);
}
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, const char *args, void *opaque);
void (*uninit)(WriterContext *wctx);
void (*print_header)(WriterContext *ctx);
void (*print_footer)(WriterContext *ctx);
void (*print_chapter_header)(WriterContext *wctx, const char *);
void (*print_chapter_footer)(WriterContext *wctx, const char *);
void (*print_section_header)(WriterContext *wctx, const char *);
void (*print_section_footer)(WriterContext *wctx, const char *);
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 *);
void (*show_tags) (WriterContext *wctx, AVDictionary *dict);
int flags; ///< a combination or WRITER_FLAG_*
} Writer;
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
unsigned int nb_item; ///< number of the item printed in the given section, starting at 0
unsigned int nb_section; ///< number of the section printed in the given section sequence, starting at 0
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
unsigned int nb_chapter; ///< number of the chapter, starting at 0
int multiple_sections; ///< tells if the current chapter can contain multiple sections
int is_fmt_chapter; ///< tells if the current chapter is "format", required by the print_format_entry option
int is_packets_and_frames; ///< tells if the current section 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)
{
if (!*wctx)
return;
if ((*wctx)->writer->uninit)
(*wctx)->writer->uninit(*wctx);
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, void *opaque)
{
int ret = 0;
if (!(*wctx = av_malloc(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;
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;
}
if ((*wctx)->writer->init)
ret = (*wctx)->writer->init(*wctx, args, opaque);
if (ret < 0)
goto fail;
return 0;
fail:
writer_close(wctx);
return ret;
}
static inline void writer_print_header(WriterContext *wctx)
{
if (wctx->writer->print_header)
wctx->writer->print_header(wctx);
wctx->nb_chapter = 0;
}
static inline void writer_print_footer(WriterContext *wctx)
{
if (wctx->writer->print_footer)
wctx->writer->print_footer(wctx);
}
static inline void writer_print_chapter_header(WriterContext *wctx,
const char *chapter)
{
wctx->nb_section =
wctx->nb_section_packet = wctx->nb_section_frame =
wctx->nb_section_packet_frame = 0;
wctx->is_packets_and_frames = !strcmp(chapter, "packets_and_frames");
wctx->multiple_sections = !strcmp(chapter, "packets") || !strcmp(chapter, "frames" ) ||
wctx->is_packets_and_frames ||
!strcmp(chapter, "streams") || !strcmp(chapter, "library_versions");
wctx->is_fmt_chapter = !strcmp(chapter, "format");
if (wctx->writer->print_chapter_header)
wctx->writer->print_chapter_header(wctx, chapter);
}
static inline void writer_print_chapter_footer(WriterContext *wctx,
const char *chapter)
{
if (wctx->writer->print_chapter_footer)
wctx->writer->print_chapter_footer(wctx, chapter);
wctx->nb_chapter++;
}
static inline void writer_print_section_header(WriterContext *wctx,
const char *section)
{
if (wctx->is_packets_and_frames)
wctx->nb_section_packet_frame = !strcmp(section, "packet") ? wctx->nb_section_packet
: wctx->nb_section_frame;
if (wctx->writer->print_section_header)
wctx->writer->print_section_header(wctx, section);
wctx->nb_item = 0;
}
static inline void writer_print_section_footer(WriterContext *wctx,
const char *section)
{
if (wctx->writer->print_section_footer)
wctx->writer->print_section_footer(wctx, section);
if (wctx->is_packets_and_frames) {
if (!strcmp(section, "packet")) wctx->nb_section_packet++;
else wctx->nb_section_frame++;
}
wctx->nb_section++;
}
static inline void writer_print_integer(WriterContext *wctx,
const char *key, long long int val)
{
if (!wctx->is_fmt_chapter || !fmt_entries_to_show || av_dict_get(fmt_entries_to_show, key, NULL, 0)) {
wctx->writer->print_integer(wctx, key, val);
wctx->nb_item++;
}
}
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);
wctx->writer->print_string(wctx, key, buf.str);
wctx->nb_item++;
}
static inline void writer_print_string(WriterContext *wctx,
const char *key, const char *val, int opt)
{
if (opt && !(wctx->writer->flags & WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS))
return;
if (!wctx->is_fmt_chapter || !fmt_entries_to_show || av_dict_get(fmt_entries_to_show, key, NULL, 0)) {
wctx->writer->print_string(wctx, key, val);
wctx->nb_item++;
}
}
static void writer_print_time(WriterContext *wctx, const char *key,
int64_t ts, const AVRational *time_base, int is_duration)
{
char buf[128];
if (!wctx->is_fmt_chapter || !fmt_entries_to_show || av_dict_get(fmt_entries_to_show, key, NULL, 0)) {
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 inline void writer_show_tags(WriterContext *wctx, AVDictionary *dict)
{
wctx->writer->show_tags(wctx, dict);
}
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;
} 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, const char *section)
{
DefaultContext *def = wctx->priv;
char buf[32];
if (!def->noprint_wrappers)
printf("[%s]\n", upcase_string(buf, sizeof(buf), section));
}
static void default_print_section_footer(WriterContext *wctx, const char *section)
{
DefaultContext *def = wctx->priv;
char buf[32];
if (!def->noprint_wrappers)
printf("[/%s]\n", upcase_string(buf, sizeof(buf), section));
}
static void default_print_str(WriterContext *wctx, const char *key, const char *value)
{
DefaultContext *def = wctx->priv;
if (!def->nokey)
printf("%s=", 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=", key);
printf("%lld\n", value);
}
static void default_show_tags(WriterContext *wctx, AVDictionary *dict)
{
AVDictionaryEntry *tag = NULL;
while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
if (!fmt_entries_to_show || (tag->key && av_dict_get(fmt_entries_to_show, tag->key, NULL, 0)))
printf("TAG:");
writer_print_string(wctx, tag->key, tag->value, 0);
}
}
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,
.show_tags = default_show_tags,
.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)
{
const char *p;
int quote = 0;
/* check if input needs quoting */
for (p = src; *p; p++)
if (*p == '"' || *p == sep || *p == '\n' || *p == '\r')
quote = 1;
if (quote)
av_bprint_chars(dst, '\"', 1);
for (p = src; *p; p++) {
if (*p == '"')
av_bprint_chars(dst, '\"', 1);
av_bprint_chars(dst, *p, 1);
}
if (quote)
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);
} 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, const char *args, void *opaque)
{
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, const char *section)
{
CompactContext *compact = wctx->priv;
if (compact->print_section)
printf("%s%c", section, compact->item_sep);
}
static void compact_print_section_footer(WriterContext *wctx, const char *section)
{
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) printf("%c", compact->item_sep);
if (!compact->nokey)
printf("%s=", 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) printf("%c", compact->item_sep);
if (!compact->nokey)
printf("%s=", key);
printf("%lld", value);
}
static void compact_show_tags(WriterContext *wctx, AVDictionary *dict)
{
CompactContext *compact = wctx->priv;
AVDictionaryEntry *tag = NULL;
AVBPrint buf;
av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
if (wctx->nb_item) printf("%c", compact->item_sep);
if (!compact->nokey) {
av_bprint_clear(&buf);
printf("tag:%s=", compact->escape_str(&buf, tag->key, compact->item_sep, wctx));
}
av_bprint_clear(&buf);
printf("%s", compact->escape_str(&buf, tag->value, compact->item_sep, wctx));
}
av_bprint_finalize(&buf, NULL);
}
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,
.show_tags = compact_show_tags,
.flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
.priv_class = &compact_class,
};
/* CSV output */
static av_cold int csv_init(WriterContext *wctx, const char *args, void *opaque)
{
return compact_init(wctx, "item_sep=,:nokey=1:escape=csv", opaque);
}
static const Writer csv_writer = {
.name = "csv",
.priv_size = sizeof(CompactContext),
.init = csv_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,
.show_tags = compact_show_tags,
.flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
.priv_class = &compact_class,
};
/* Flat output */
typedef struct FlatContext {
const AVClass *class;
const char *section, *chapter;
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, const char *args, void *opaque)
{
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_chapter_header(WriterContext *wctx, const char *chapter)
{
FlatContext *flat = wctx->priv;
flat->chapter = chapter;
}
static void flat_print_section_header(WriterContext *wctx, const char *section)
{
FlatContext *flat = wctx->priv;
flat->section = section;
}
static void flat_print_section(WriterContext *wctx)
{
FlatContext *flat = wctx->priv;
int n = wctx->is_packets_and_frames ? wctx->nb_section_packet_frame
: wctx->nb_section;
if (flat->hierarchical && wctx->multiple_sections)
printf("%s%c", flat->chapter, flat->sep);
printf("%s%c", flat->section, flat->sep);
if (wctx->multiple_sections)
printf("%d%c", n, flat->sep);
}
static void flat_print_int(WriterContext *wctx, const char *key, long long int value)
{
flat_print_section(wctx);
printf("%s=%lld\n", key, value);
}
static void flat_print_str(WriterContext *wctx, const char *key, const char *value)
{
FlatContext *flat = wctx->priv;
AVBPrint buf;
flat_print_section(wctx);
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 void flat_show_tags(WriterContext *wctx, AVDictionary *dict)
{
FlatContext *flat = wctx->priv;
AVBPrint buf;
AVDictionaryEntry *tag = NULL;
av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
flat_print_section(wctx);
av_bprint_clear(&buf);
printf("tags%c%s=", flat->sep, flat_escape_key_str(&buf, tag->key, flat->sep));
av_bprint_clear(&buf);
printf("\"%s\"\n", flat_escape_value_str(&buf, tag->value));
}
av_bprint_finalize(&buf, NULL);
}
static const Writer flat_writer = {
.name = "flat",
.priv_size = sizeof(FlatContext),
.init = flat_init,
.print_chapter_header = flat_print_chapter_header,
.print_section_header = flat_print_section_header,
.print_integer = flat_print_int,
.print_string = flat_print_str,
.show_tags = flat_show_tags,
.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;
AVBPrint chapter_name, section_name;
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 av_cold int ini_init(WriterContext *wctx, const char *args, void *opaque)
{
INIContext *ini = wctx->priv;
av_bprint_init(&ini->chapter_name, 1, AV_BPRINT_SIZE_UNLIMITED);
av_bprint_init(&ini->section_name, 1, AV_BPRINT_SIZE_UNLIMITED);
return 0;
}
static av_cold void ini_uninit(WriterContext *wctx)
{
INIContext *ini = wctx->priv;
av_bprint_finalize(&ini->chapter_name, NULL);
av_bprint_finalize(&ini->section_name, NULL);
}
static void ini_print_header(WriterContext *wctx)
{
printf("# ffprobe output\n\n");
}
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_chapter_header(WriterContext *wctx, const char *chapter)
{
INIContext *ini = wctx->priv;
av_bprint_clear(&ini->chapter_name);
av_bprintf(&ini->chapter_name, "%s", chapter);
if (wctx->nb_chapter)
printf("\n");
}
static void ini_print_section_header(WriterContext *wctx, const char *section)
{
INIContext *ini = wctx->priv;
int n = wctx->is_packets_and_frames ? wctx->nb_section_packet_frame
: wctx->nb_section;
if (wctx->nb_section)
printf("\n");
av_bprint_clear(&ini->section_name);
if (ini->hierarchical && wctx->multiple_sections)
av_bprintf(&ini->section_name, "%s.", ini->chapter_name.str);
av_bprintf(&ini->section_name, "%s", section);
if (wctx->multiple_sections)
av_bprintf(&ini->section_name, ".%d", n);
printf("[%s]\n", ini->section_name.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 void ini_show_tags(WriterContext *wctx, AVDictionary *dict)
{
INIContext *ini = wctx->priv;
AVDictionaryEntry *tag = NULL;
int is_first = 1;
while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
if (is_first) {
printf("\n[%s.tags]\n", ini->section_name.str);
is_first = 0;
}
writer_print_string(wctx, tag->key, tag->value, 0);
}
}
static const Writer ini_writer = {
.name = "ini",
.priv_size = sizeof(INIContext),
.init = ini_init,
.uninit = ini_uninit,
.print_header = ini_print_header,
.print_chapter_header = ini_print_chapter_header,
.print_section_header = ini_print_section_header,
.print_integer = ini_print_int,
.print_string = ini_print_str,
.show_tags = ini_show_tags,
.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, const char *args, void *opaque)
{
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;
}
static void json_print_header(WriterContext *wctx)
{
JSONContext *json = wctx->priv;
printf("{");
json->indent_level++;
}
static void json_print_footer(WriterContext *wctx)
{
JSONContext *json = wctx->priv;
json->indent_level--;
printf("\n}\n");
}
#define JSON_INDENT() printf("%*c", json->indent_level * 4, ' ')
static void json_print_chapter_header(WriterContext *wctx, const char *chapter)
{
JSONContext *json = wctx->priv;
AVBPrint buf;
if (wctx->nb_chapter)
printf(",");
printf("\n");
if (wctx->multiple_sections) {
JSON_INDENT();
av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
printf("\"%s\": [\n", json_escape_str(&buf, chapter, wctx));
av_bprint_finalize(&buf, NULL);
json->indent_level++;
}
}
static void json_print_chapter_footer(WriterContext *wctx, const char *chapter)
{
JSONContext *json = wctx->priv;
if (wctx->multiple_sections) {
printf("\n");
json->indent_level--;
JSON_INDENT();
printf("]");
}
}
static void json_print_section_header(WriterContext *wctx, const char *section)
{
JSONContext *json = wctx->priv;
if (wctx->nb_section)
printf(",\n");
JSON_INDENT();
if (!wctx->multiple_sections)
printf("\"%s\": ", section);
printf("{%s", json->item_start_end);
json->indent_level++;
/* this is required so the parser can distinguish between packets and frames */
if (wctx->is_packets_and_frames) {
if (!json->compact)
JSON_INDENT();
printf("\"type\": \"%s\"%s", section, json->item_sep);
}
}
static void json_print_section_footer(WriterContext *wctx, const char *section)
{
JSONContext *json = wctx->priv;
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) 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) 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 void json_show_tags(WriterContext *wctx, AVDictionary *dict)
{
JSONContext *json = wctx->priv;
AVDictionaryEntry *tag = NULL;
int is_first = 1;
if (!dict)
return;
printf("%s", json->item_sep);
if (!json->compact)
JSON_INDENT();
printf("\"tags\": {%s", json->item_start_end);
json->indent_level++;
while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
if (is_first) is_first = 0;
else printf("%s", json->item_sep);
if (!json->compact)
JSON_INDENT();
json_print_item_str(wctx, tag->key, tag->value);
}
json->indent_level--;
printf("%s", json->item_start_end);
if (!json->compact)
JSON_INDENT();
printf("}");
}
static const Writer json_writer = {
.name = "json",
.priv_size = sizeof(JSONContext),
.init = json_init,
.print_header = json_print_header,
.print_footer = json_print_footer,
.print_chapter_header = json_print_chapter_header,
.print_chapter_footer = json_print_chapter_footer,
.print_section_header = json_print_section_header,
.print_section_footer = json_print_section_footer,
.print_integer = json_print_int,
.print_string = json_print_str,
.show_tags = json_show_tags,
.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, const char *args, void *opaque)
{
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;
}
static void xml_print_header(WriterContext *wctx)
{
XMLContext *xml = wctx->priv;
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 : "");
xml->indent_level++;
}
static void xml_print_footer(WriterContext *wctx)
{
XMLContext *xml = wctx->priv;
xml->indent_level--;
printf("</%sffprobe>\n", xml->fully_qualified ? "ffprobe:" : "");
}
#define XML_INDENT() printf("%*c", xml->indent_level * 4, ' ')
static void xml_print_chapter_header(WriterContext *wctx, const char *chapter)
{
XMLContext *xml = wctx->priv;
if (wctx->nb_chapter)
printf("\n");
if (wctx->multiple_sections) {
XML_INDENT(); printf("<%s>\n", chapter);
xml->indent_level++;
}
}
static void xml_print_chapter_footer(WriterContext *wctx, const char *chapter)
{
XMLContext *xml = wctx->priv;
if (wctx->multiple_sections) {
xml->indent_level--;
XML_INDENT(); printf("</%s>\n", chapter);
}
}
static void xml_print_section_header(WriterContext *wctx, const char *section)
{
XMLContext *xml = wctx->priv;
XML_INDENT(); printf("<%s ", section);
xml->within_tag = 1;
}
static void xml_print_section_footer(WriterContext *wctx, const char *section)
{
XMLContext *xml = wctx->priv;
if (xml->within_tag)
printf("/>\n");
else {
XML_INDENT(); printf("</%s>\n", section);
}
}
static void xml_print_str(WriterContext *wctx, const char *key, const char *value)
{
AVBPrint buf;
if (wctx->nb_item)
printf(" ");
av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
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)
printf(" ");
printf("%s=\"%lld\"", key, value);
}
static void xml_show_tags(WriterContext *wctx, AVDictionary *dict)
{
XMLContext *xml = wctx->priv;
AVDictionaryEntry *tag = NULL;
int is_first = 1;
AVBPrint buf;
av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
xml->indent_level++;
while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) {
if (is_first) {
/* close section tag */
printf(">\n");
xml->within_tag = 0;
is_first = 0;
}
XML_INDENT();
av_bprint_clear(&buf);
printf("<tag key=\"%s\"", xml_escape_str(&buf, tag->key, wctx));
av_bprint_clear(&buf);
printf(" value=\"%s\"/>\n", xml_escape_str(&buf, tag->value, wctx));
}
av_bprint_finalize(&buf, NULL);
xml->indent_level--;
}
static Writer xml_writer = {
.name = "xml",
.priv_size = sizeof(XMLContext),
.init = xml_init,
.print_header = xml_print_header,
.print_footer = xml_print_footer,
.print_chapter_header = xml_print_chapter_header,
.print_chapter_footer = xml_print_chapter_footer,
.print_section_header = xml_print_section_header,
.print_section_footer = xml_print_section_footer,
.print_integer = xml_print_int,
.print_string = xml_print_str,
.show_tags = xml_show_tags,
.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)
#define show_tags(metadata) writer_show_tags(w, metadata)
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);
print_section_header("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);
print_section_footer("packet");
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);
print_section_header("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", frame->pkt_duration);
print_duration_time("pkt_duration_time", frame->pkt_duration, &stream->time_base);
if (frame->pkt_pos != -1) print_fmt ("pkt_pos", "%"PRId64, frame->pkt_pos);
else print_str_opt("pkt_pos", "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);
print_int("reference", frame->reference);
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(av_frame_get_metadata(frame));
print_section_footer("frame");
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 (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);
print_section_header("stream");
print_int("index", stream->index);
if ((dec_ctx = stream->codec)) {
const char *profile = NULL;
if ((dec = dec_ctx->codec)) {
print_str("codec_name", dec->name);
print_str("codec_long_name", dec->long_name);
} else {
print_str_opt("codec_name", "unknown");
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);
show_tags(stream->metadata);
print_section_footer("stream");
av_bprint_finalize(&pbuf, NULL);
fflush(stdout);
}
static void show_streams(WriterContext *w, AVFormatContext *fmt_ctx)
{
int i;
for (i = 0; i < fmt_ctx->nb_streams; i++)
show_stream(w, fmt_ctx, i);
}
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;
print_section_header("format");
print_str("filename", fmt_ctx->filename);
print_int("nb_streams", fmt_ctx->nb_streams);
print_str("format_name", fmt_ctx->iformat->name);
print_str("format_long_name", fmt_ctx->iformat->long_name);
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(fmt_ctx->metadata);
print_section_footer("format");
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_chapter_header(w, "error");
print_section_header("error");
print_int("code", err);
print_str("string", errbuf_ptr);
print_section_footer("error");
writer_print_chapter_footer(w, "error");
}
static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
{
int err, i;
AVFormatContext *fmt_ctx = NULL;
AVDictionaryEntry *t;
if ((err = avformat_open_input(&fmt_ctx, filename,
iformat, &format_opts)) < 0) {
print_error(filename, err);
return err;
}
if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
return AVERROR_OPTION_NOT_FOUND;
}
/* fill the streams in the format context */
if ((err = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
print_error(filename, err);
return err;
}
av_dump_format(fmt_ctx, 0, filename, 0);
/* bind a decoder to each input stream */
for (i = 0; i < fmt_ctx->nb_streams; i++) {
AVStream *stream = fmt_ctx->streams[i];
AVCodec *codec;
if (stream->codec->codec_id == AV_CODEC_ID_PROBE) {
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 if (avcodec_open2(stream->codec, codec, NULL) < 0) {
av_log(NULL, AV_LOG_ERROR, "Error while opening codec for input stream %d\n",
stream->index);
}
}
*fmt_ctx_ptr = fmt_ctx;
return 0;
}
static void close_input_file(AVFormatContext **ctx_ptr)
{
int i;
AVFormatContext *fmt_ctx = *ctx_ptr;
/* close decoder for each stream */
for (i = 0; i < fmt_ctx->nb_streams; i++)
if (fmt_ctx->streams[i]->codec->codec_id != AV_CODEC_ID_NONE)
avcodec_close(fmt_ctx->streams[i]->codec);
avformat_close_input(ctx_ptr);
}
#define PRINT_CHAPTER(name) do { \
if (do_show_ ## name) { \
writer_print_chapter_header(wctx, #name); \
show_ ## name (wctx, fmt_ctx); \
writer_print_chapter_footer(wctx, #name); \
} \
} while (0)
static int probe_file(WriterContext *wctx, const char *filename)
{
AVFormatContext *fmt_ctx;
int ret;
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));
if (do_read_frames || do_read_packets) {
const char *chapter;
if (do_show_frames && do_show_packets &&
wctx->writer->flags & WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER)
chapter = "packets_and_frames";
else if (do_show_packets && !do_show_frames)
chapter = "packets";
else // (!do_show_packets && do_show_frames)
chapter = "frames";
if (do_show_frames || do_show_packets)
writer_print_chapter_header(wctx, chapter);
read_packets(wctx, fmt_ctx);
if (do_show_frames || do_show_packets)
writer_print_chapter_footer(wctx, chapter);
}
PRINT_CHAPTER(streams);
PRINT_CHAPTER(format);
close_input_file(&fmt_ctx);
av_freep(&nb_streams_frames);
av_freep(&nb_streams_packets);
}
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_chapter_header(w, "program_version");
print_section_header("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);
print_section_footer("program_version");
writer_print_chapter_footer(w, "program_version");
av_bprint_finalize(&pbuf, NULL);
}
#define SHOW_LIB_VERSION(libname, LIBNAME) \
do { \
if (CONFIG_##LIBNAME) { \
unsigned int version = libname##_version(); \
print_section_header("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_section_footer("library_version"); \
} \
} while (0)
static void ffprobe_show_library_versions(WriterContext *w)
{
writer_print_chapter_header(w, "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_chapter_footer(w, "library_versions");
}
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 int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
{
do_show_format = 1;
av_dict_set(&fmt_entries_to_show, arg, "", 0);
return 0;
}
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 int opt_show_versions(const char *opt, const char *arg)
{
do_show_program_version = 1;
do_show_library_versions = 1;
return 0;
}
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" },
{ "show_data", OPT_BOOL, {(void*)&do_show_data}, "show packets data" },
{ "show_error", OPT_BOOL, {(void*)&do_show_error} , "show probing error" },
{ "show_format", OPT_BOOL, {&do_show_format} , "show format/container info" },
{ "show_frames", OPT_BOOL, {(void*)&do_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_packets", OPT_BOOL, {&do_show_packets}, "show packets info" },
{ "show_streams", OPT_BOOL, {&do_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", OPT_BOOL, {(void*)&do_show_program_version}, "show ffprobe version" },
{ "show_library_versions", OPT_BOOL, {(void*)&do_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" },
{ "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, },
};
int main(int argc, char **argv)
{
const Writer *w;
WriterContext *wctx;
char *buf;
char *w_name = NULL, *w_args = NULL;
int ret;
av_log_set_flags(AV_LOG_SKIP_REPEATED);
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);
writer_register_all();
if (!print_format)
print_format = av_strdup("default");
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, NULL)) >= 0) {
writer_print_header(wctx);
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_footer(wctx);
writer_close(&wctx);
}
end:
av_freep(&print_format);
uninit_opts();
av_dict_free(&fmt_entries_to_show);
avformat_network_deinit();
return ret;
}
Reference in New Issue View Git Blame Copy Permalink