diff options
Diffstat (limited to 'ffprobe.c')
| -rw-r--r-- | ffprobe.c | 1862 |
1 files changed, 1862 insertions, 0 deletions
diff --git a/ffprobe.c b/ffprobe.c new file mode 100644 index 0000000..a2315d5 --- /dev/null +++ b/ffprobe.c @@ -0,0 +1,1862 @@ +/* + * 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/opt.h" +#include "libavutil/pixdesc.h" +#include "libavutil/dict.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 int do_show_packets = 0; +static int do_show_streams = 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 *binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" }; +static const char *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) +{ + 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; + int show_float = 0; + + if (uv.unit == unit_second_str) { + vald = uv.val.d; + show_float = 1; + } else { + vald = 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 = ""; + int l; + + 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) (log(vald)/log(2)) / 10; + index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) - 1); + vald /= pow(2, 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)) + l = snprintf(buf, buf_size, "%f", vald); + else + l = snprintf(buf, buf_size, "%lld", (long long int)vald); + snprintf(buf+l, buf_size-l, "%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 { + 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_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_chapter; ///< number of the chapter, starting at 0 +}; + +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); + 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 ((*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) +{ + if (wctx->writer->print_chapter_header) + wctx->writer->print_chapter_header(wctx, chapter); + wctx->nb_section = 0; +} + +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->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); + wctx->nb_section++; +} + +static inline void writer_print_integer(WriterContext *wctx, + const char *key, long long int val) +{ + wctx->writer->print_integer(wctx, key, val); + 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; + 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) +{ + char buf[128]; + + if (ts == AV_NOPTS_VALUE) { + writer_print_string(wctx, key, "N/A", 1); + } else { + double d = ts * av_q2d(*time_base); + value_string(buf, sizeof(buf), (struct unit_value){.val.d=d, .unit=unit_second_str}); + writer_print_string(wctx, key, buf, 0); + } +} + +static void writer_print_ts(WriterContext *wctx, const char *key, int64_t ts) +{ + if (ts == AV_NOPTS_VALUE) { + 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); +} + +#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; +} + +/* Print helpers */ + +struct print_buf { + char *s; + int len; +}; + +static char *fast_asprintf(struct print_buf *pbuf, const char *fmt, ...) +{ + va_list va; + int len; + + va_start(va, fmt); + len = vsnprintf(NULL, 0, fmt, va); + va_end(va); + if (len < 0) + goto fail; + + if (pbuf->len < len) { + char *p = av_realloc(pbuf->s, len + 1); + if (!p) + goto fail; + pbuf->s = p; + pbuf->len = len; + } + + va_start(va, fmt); + len = vsnprintf(pbuf->s, len + 1, fmt, va); + va_end(va); + if (len < 0) + goto fail; + return pbuf->s; + +fail: + av_freep(&pbuf->s); + pbuf->len = 0; + return NULL; +} + +#define ESCAPE_INIT_BUF_SIZE 256 + +#define ESCAPE_CHECK_SIZE(src, size, max_size) \ + if (size > max_size) { \ + char buf[64]; \ + snprintf(buf, sizeof(buf), "%s", src); \ + av_log(log_ctx, AV_LOG_WARNING, \ + "String '%s...' is too big\n", buf); \ + return "FFPROBE_TOO_BIG_STRING"; \ + } + +#define ESCAPE_REALLOC_BUF(dst_size_p, dst_p, src, size) \ + if (*dst_size_p < size) { \ + char *q = av_realloc(*dst_p, size); \ + if (!q) { \ + char buf[64]; \ + snprintf(buf, sizeof(buf), "%s", src); \ + av_log(log_ctx, AV_LOG_WARNING, \ + "String '%s...' could not be escaped\n", buf); \ + return "FFPROBE_THIS_STRING_COULD_NOT_BE_ESCAPED"; \ + } \ + *dst_size_p = size; \ + *dst = q; \ + } + +/* WRITERS */ + +/* Default output */ + +static void default_print_footer(WriterContext *wctx) +{ + printf("\n"); +} + +static void default_print_chapter_header(WriterContext *wctx, const char *chapter) +{ + if (wctx->nb_chapter) + printf("\n"); +} + +/* 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) +{ + char buf[32]; + + if (wctx->nb_section) + printf("\n"); + printf("[%s]\n", upcase_string(buf, sizeof(buf), section)); +} + +static void default_print_section_footer(WriterContext *wctx, const char *section) +{ + char buf[32]; + + printf("[/%s]", upcase_string(buf, sizeof(buf), section)); +} + +static void default_print_str(WriterContext *wctx, const char *key, const char *value) +{ + printf("%s=%s\n", key, value); +} + +static void default_print_int(WriterContext *wctx, const char *key, long long int value) +{ + printf("%s=%lld\n", key, value); +} + +static void default_show_tags(WriterContext *wctx, AVDictionary *dict) +{ + AVDictionaryEntry *tag = NULL; + while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) { + printf("TAG:"); + writer_print_string(wctx, tag->key, tag->value, 0); + } +} + +static const Writer default_writer = { + .name = "default", + .print_footer = default_print_footer, + .print_chapter_header = default_print_chapter_header, + .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, +}; + +/* Compact output */ + +/** + * Escape \n, \r, \\ and sep characters contained in s, and print the + * resulting string. + */ +static const char *c_escape_str(char **dst, size_t *dst_size, + const char *src, const char sep, void *log_ctx) +{ + const char *p; + char *q; + size_t size = 1; + + /* precompute size */ + for (p = src; *p; p++, size++) { + ESCAPE_CHECK_SIZE(src, size, SIZE_MAX-2); + if (*p == '\n' || *p == '\r' || *p == '\\') + size++; + } + + ESCAPE_REALLOC_BUF(dst_size, dst, src, size); + + q = *dst; + for (p = src; *p; p++) { + switch (*src) { + case '\n': *q++ = '\\'; *q++ = 'n'; break; + case '\r': *q++ = '\\'; *q++ = 'r'; break; + case '\\': *q++ = '\\'; *q++ = '\\'; break; + default: + if (*p == sep) + *q++ = '\\'; + *q++ = *p; + } + } + *q = 0; + return *dst; +} + +/** + * Quote fields containing special characters, check RFC4180. + */ +static const char *csv_escape_str(char **dst, size_t *dst_size, + const char *src, const char sep, void *log_ctx) +{ + const char *p; + char *q; + size_t size = 1; + int quote = 0; + + /* precompute size */ + for (p = src; *p; p++, size++) { + ESCAPE_CHECK_SIZE(src, size, SIZE_MAX-4); + if (*p == '"' || *p == sep || *p == '\n' || *p == '\r') + if (!quote) { + quote = 1; + size += 2; + } + if (*p == '"') + size++; + } + + ESCAPE_REALLOC_BUF(dst_size, dst, src, size); + + q = *dst; + p = src; + if (quote) + *q++ = '\"'; + while (*p) { + if (*p == '"') + *q++ = '\"'; + *q++ = *p++; + } + if (quote) + *q++ = '\"'; + *q = 0; + + return *dst; +} + +static const char *none_escape_str(char **dst, size_t *dst_size, + 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; + char *buf; + size_t buf_size; + char *escape_mode_str; + const char * (*escape_str)(char **dst, size_t *dst_size, + const char *src, const char sep, void *log_ctx); +} CompactContext; + +#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, {.dbl=0}, 0, 1 }, + {"nk", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.dbl=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 }, + {NULL}, +}; + +static const char *compact_get_name(void *ctx) +{ + return "compact"; +} + +static const AVClass compact_class = { + "CompactContext", + compact_get_name, + compact_options +}; + +static av_cold int compact_init(WriterContext *wctx, const char *args, void *opaque) +{ + CompactContext *compact = wctx->priv; + int err; + + compact->class = &compact_class; + av_opt_set_defaults(compact); + + if (args && + (err = (av_set_options_string(compact, args, "=", ":"))) < 0) { + av_log(wctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args); + return err; + } + 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]; + + compact->buf_size = ESCAPE_INIT_BUF_SIZE; + if (!(compact->buf = av_malloc(compact->buf_size))) + return AVERROR(ENOMEM); + + 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 av_cold void compact_uninit(WriterContext *wctx) +{ + CompactContext *compact = wctx->priv; + + av_freep(&compact->item_sep_str); + av_freep(&compact->buf); + av_freep(&compact->escape_mode_str); +} + +static void compact_print_section_header(WriterContext *wctx, const char *section) +{ + CompactContext *compact = wctx->priv; + + 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; + + if (wctx->nb_item) printf("%c", compact->item_sep); + if (!compact->nokey) + printf("%s=", key); + printf("%s", compact->escape_str(&compact->buf, &compact->buf_size, + value, compact->item_sep, wctx)); +} + +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; + + while ((tag = av_dict_get(dict, "", tag, AV_DICT_IGNORE_SUFFIX))) { + if (wctx->nb_item) printf("%c", compact->item_sep); + if (!compact->nokey) + printf("tag:%s=", compact->escape_str(&compact->buf, &compact->buf_size, + tag->key, compact->item_sep, wctx)); + printf("%s", compact->escape_str(&compact->buf, &compact->buf_size, + tag->value, compact->item_sep, wctx)); + } +} + +static const Writer compact_writer = { + .name = "compact", + .priv_size = sizeof(CompactContext), + .init = compact_init, + .uninit = compact_uninit, + .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, +}; + +/* 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, + .uninit = compact_uninit, + .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, +}; + +/* JSON output */ + +typedef struct { + const AVClass *class; + int multiple_entries; ///< tells if the given chapter requires multiple entries + char *buf; + size_t buf_size; + int print_packets_and_frames; + 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, {.dbl=0}, 0, 1 }, + { "c", "enable compact output", OFFSET(compact), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1 }, + { NULL } +}; + +static const char *json_get_name(void *ctx) +{ + return "json"; +} + +static const AVClass json_class = { + "JSONContext", + json_get_name, + json_options +}; + +static av_cold int json_init(WriterContext *wctx, const char *args, void *opaque) +{ + JSONContext *json = wctx->priv; + int err; + + json->class = &json_class; + av_opt_set_defaults(json); + + if (args && + (err = (av_set_options_string(json, args, "=", ":"))) < 0) { + av_log(wctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args); + return err; + } + + json->item_sep = json->compact ? ", " : ",\n"; + json->item_start_end = json->compact ? " " : "\n"; + + json->buf_size = ESCAPE_INIT_BUF_SIZE; + if (!(json->buf = av_malloc(json->buf_size))) + return AVERROR(ENOMEM); + + return 0; +} + +static av_cold void json_uninit(WriterContext *wctx) +{ + JSONContext *json = wctx->priv; + av_freep(&json->buf); +} + +static const char *json_escape_str(char **dst, size_t *dst_size, 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; + char *q; + size_t size = 1; + + // compute the length of the escaped string + for (p = src; *p; p++) { + ESCAPE_CHECK_SIZE(src, size, SIZE_MAX-6); + if (strchr(json_escape, *p)) size += 2; // simple escape + else if ((unsigned char)*p < 32) size += 6; // handle non-printable chars + else size += 1; // char copy + } + ESCAPE_REALLOC_BUF(dst_size, dst, src, size); + + q = *dst; + for (p = src; *p; p++) { + char *s = strchr(json_escape, *p); + if (s) { + *q++ = '\\'; + *q++ = json_subst[s - json_escape]; + } else if ((unsigned char)*p < 32) { + snprintf(q, 7, "\\u00%02x", *p & 0xff); + q += 6; + } else { + *q++ = *p; + } + } + *q = 0; + return *dst; +} + +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; + + if (wctx->nb_chapter) + printf(","); + printf("\n"); + json->multiple_entries = !strcmp(chapter, "packets") || !strcmp(chapter, "frames" ) || + !strcmp(chapter, "packets_and_frames") || + !strcmp(chapter, "streams") || !strcmp(chapter, "library_versions"); + if (json->multiple_entries) { + JSON_INDENT(); + printf("\"%s\": [\n", json_escape_str(&json->buf, &json->buf_size, chapter, wctx)); + json->print_packets_and_frames = !strcmp(chapter, "packets_and_frames"); + json->indent_level++; + } +} + +static void json_print_chapter_footer(WriterContext *wctx, const char *chapter) +{ + JSONContext *json = wctx->priv; + + if (json->multiple_entries) { + 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 (!json->multiple_entries) + 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 (json->print_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) +{ + JSONContext *json = wctx->priv; + + printf("\"%s\":", json_escape_str(&json->buf, &json->buf_size, key, wctx)); + printf(" \"%s\"", json_escape_str(&json->buf, &json->buf_size, value, wctx)); +} + +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; + + if (wctx->nb_item) printf("%s", json->item_sep); + if (!json->compact) + JSON_INDENT(); + printf("\"%s\": %lld", + json_escape_str(&json->buf, &json->buf_size, key, wctx), value); +} + +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, + .uninit = json_uninit, + .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, +}; + +/* XML output */ + +typedef struct { + const AVClass *class; + int within_tag; + int multiple_entries; ///< tells if the given chapter requires multiple entries + int indent_level; + int fully_qualified; + int xsd_strict; + char *buf; + size_t buf_size; +} 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, {.dbl=0}, 0, 1 }, + {"q", "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1 }, + {"xsd_strict", "ensure that the output is XSD compliant", OFFSET(xsd_strict), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1 }, + {"x", "ensure that the output is XSD compliant", OFFSET(xsd_strict), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1 }, + {NULL}, +}; + +static const char *xml_get_name(void *ctx) +{ + return "xml"; +} + +static const AVClass xml_class = { + "XMLContext", + xml_get_name, + xml_options +}; + +static av_cold int xml_init(WriterContext *wctx, const char *args, void *opaque) +{ + XMLContext *xml = wctx->priv; + int err; + + xml->class = &xml_class; + av_opt_set_defaults(xml); + + if (args && + (err = (av_set_options_string(xml, args, "=", ":"))) < 0) { + av_log(wctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args); + return err; + } + + 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); + } + } + + xml->buf_size = ESCAPE_INIT_BUF_SIZE; + if (!(xml->buf = av_malloc(xml->buf_size))) + return AVERROR(ENOMEM); + return 0; +} + +static av_cold void xml_uninit(WriterContext *wctx) +{ + XMLContext *xml = wctx->priv; + av_freep(&xml->buf); +} + +static const char *xml_escape_str(char **dst, size_t *dst_size, const char *src, + void *log_ctx) +{ + const char *p; + char *q; + size_t size = 1; + + /* precompute size */ + for (p = src; *p; p++, size++) { + ESCAPE_CHECK_SIZE(src, size, SIZE_MAX-10); + switch (*p) { + case '&' : size += strlen("&"); break; + case '<' : size += strlen("<"); break; + case '>' : size += strlen(">"); break; + case '\"': size += strlen("""); break; + case '\'': size += strlen("'"); break; + default: size++; + } + } + ESCAPE_REALLOC_BUF(dst_size, dst, src, size); + +#define COPY_STR(str) { \ + const char *s = str; \ + while (*s) \ + *q++ = *s++; \ + } + + p = src; + q = *dst; + while (*p) { + switch (*p) { + case '&' : COPY_STR("&"); break; + case '<' : COPY_STR("<"); break; + case '>' : COPY_STR(">"); break; + case '\"': COPY_STR("""); break; + case '\'': COPY_STR("'"); break; + default: *q++ = *p; + } + p++; + } + *q = 0; + + return *dst; +} + +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"); + xml->multiple_entries = !strcmp(chapter, "packets") || !strcmp(chapter, "frames") || + !strcmp(chapter, "packets_and_frames") || + !strcmp(chapter, "streams") || !strcmp(chapter, "library_versions"); + + if (xml->multiple_entries) { + 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 (xml->multiple_entries) { + 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) +{ + XMLContext *xml = wctx->priv; + + if (wctx->nb_item) + printf(" "); + printf("%s=\"%s\"", key, xml_escape_str(&xml->buf, &xml->buf_size, value, wctx)); +} + +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; + + 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(); + printf("<tag key=\"%s\"", + xml_escape_str(&xml->buf, &xml->buf_size, tag->key, wctx)); + printf(" value=\"%s\"/>\n", + xml_escape_str(&xml->buf, &xml->buf_size, tag->value, wctx)); + } + xml->indent_level--; +} + +static Writer xml_writer = { + .name = "xml", + .priv_size = sizeof(XMLContext), + .init = xml_init, + .uninit = xml_uninit, + .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, +}; + +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(&json_writer); + writer_register(&xml_writer); +} + +#define print_fmt(k, f, ...) do { \ + if (fast_asprintf(&pbuf, f, __VA_ARGS__)) \ + writer_print_string(w, k, pbuf.s, 0); \ +} while (0) + +#define print_fmt_opt(k, f, ...) do { \ + if (fast_asprintf(&pbuf, f, __VA_ARGS__)) \ + writer_print_string(w, k, pbuf.s, 1); \ +} while (0) + +#define print_int(k, v) writer_print_integer(w, k, v) +#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) +#define print_ts(k, v) writer_print_ts(w, k, v) +#define print_val(k, v, u) writer_print_string(w, k, \ + value_string(val_str, sizeof(val_str), (struct unit_value){.val.i = v, .unit=u}), 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]; + struct print_buf pbuf = {.s = NULL}; + const char *s; + + 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_ts ("duration", pkt->duration); + print_time("duration_time", pkt->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' : '_'); + print_section_footer("packet"); + + av_free(pbuf.s); + fflush(stdout); +} + +static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream) +{ + struct print_buf pbuf = {.s = NULL}; + const char *s; + + 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); + 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) { + 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"); + if (frame->sample_aspect_ratio.num) { + print_fmt("sample_aspect_ratio", "%d:%d", + frame->sample_aspect_ratio.num, + frame->sample_aspect_ratio.den); + } 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); + break; + } + + print_section_footer("frame"); + + av_free(pbuf.s); + fflush(stdout); +} + +static av_always_inline int get_decoded_frame(AVFormatContext *fmt_ctx, + AVFrame *frame, int *got_frame, + AVPacket *pkt) +{ + AVCodecContext *dec_ctx = fmt_ctx->streams[pkt->stream_index]->codec; + int ret = 0; + + *got_frame = 0; + 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; + } + + return ret; +} + +static void read_packets(WriterContext *w, AVFormatContext *fmt_ctx) +{ + AVPacket pkt, pkt1; + AVFrame frame; + int i = 0, ret, got_frame; + + 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 (1) { + avcodec_get_frame_defaults(&frame); + ret = get_decoded_frame(fmt_ctx, &frame, &got_frame, &pkt1); + if (ret < 0 || !got_frame) + break; + if (do_show_frames) + show_frame(w, &frame, fmt_ctx->streams[pkt.stream_index]); + pkt1.data += ret; + pkt1.size -= ret; + nb_streams_frames[pkt.stream_index]++; + } + } + 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; + while (get_decoded_frame(fmt_ctx, &frame, &got_frame, &pkt) >= 0 && got_frame) { + if (do_read_frames) { + if (do_show_frames) + show_frame(w, &frame, fmt_ctx->streams[pkt.stream_index]); + nb_streams_frames[pkt.stream_index]++; + } + } + } +} + +static void show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx) +{ + AVStream *stream = fmt_ctx->streams[stream_idx]; + AVCodecContext *dec_ctx; + AVCodec *dec; + char val_str[128]; + const char *s; + AVRational display_aspect_ratio; + struct print_buf pbuf = {.s = NULL}; + + print_section_header("stream"); + + print_int("index", stream->index); + + if ((dec_ctx = stream->codec)) { + 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"); + } + + 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_fmt("codec_time_base", "%d/%d", dec_ctx->time_base.num, dec_ctx->time_base.den); + + /* 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); + if (dec_ctx->sample_aspect_ratio.num) { + print_fmt("sample_aspect_ratio", "%d:%d", + dec_ctx->sample_aspect_ratio.num, + dec_ctx->sample_aspect_ratio.den); + av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, + dec_ctx->width * dec_ctx->sample_aspect_ratio.num, + dec_ctx->height * dec_ctx->sample_aspect_ratio.den, + 1024*1024); + print_fmt("display_aspect_ratio", "%d:%d", + display_aspect_ratio.num, + display_aspect_ratio.den); + } 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_fmt("r_frame_rate", "%d/%d", stream->r_frame_rate.num, stream->r_frame_rate.den); + print_fmt("avg_frame_rate", "%d/%d", stream->avg_frame_rate.num, stream->avg_frame_rate.den); + print_fmt("time_base", "%d/%d", stream->time_base.num, stream->time_base.den); + print_time("start_time", stream->start_time, &stream->time_base); + print_time("duration", stream->duration, &stream->time_base); + 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"); + show_tags(stream->metadata); + + print_section_footer("stream"); + av_free(pbuf.s); + 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 (!(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; +} + +#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, i; + + 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); + 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 (ret >= 0) { + 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); + for (i = 0; i < fmt_ctx->nb_streams; i++) + if (fmt_ctx->streams[i]->codec->codec_id != CODEC_ID_NONE) + avcodec_close(fmt_ctx->streams[i]->codec); + avformat_close_input(&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) +{ + struct print_buf pbuf = {.s = NULL}; + + 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_type", CC_TYPE); + print_str("compiler_version", CC_VERSION); + print_str("configuration", FFMPEG_CONFIGURATION); + print_section_footer("program_version"); + writer_print_chapter_footer(w, "program_version"); + + av_free(pbuf.s); +} + +#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(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 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_help(const char *opt, const char *arg) +{ + av_log_set_callback(log_callback_help); + show_usage(); + show_help_options(options, "Main options:\n", 0, 0); + printf("\n"); + + show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); + + return 0; +} + +static int opt_pretty(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 options[] = { +#include "cmdutils_common_opts.h" + { "f", HAS_ARG, {(void*)opt_format}, "force format", "format" }, + { "unit", OPT_BOOL, {(void*)&show_value_unit}, "show unit of the displayed values" }, + { "prefix", OPT_BOOL, {(void*)&use_value_prefix}, "use SI prefixes for the displayed values" }, + { "byte_binary_prefix", OPT_BOOL, {(void*)&use_byte_value_binary_prefix}, + "use binary prefixes for byte units" }, + { "sexagesimal", OPT_BOOL, {(void*)&use_value_sexagesimal_format}, + "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" }, + { "pretty", 0, {(void*)&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, json, xml)", "format" }, + { "show_error", OPT_BOOL, {(void*)&do_show_error} , "show probing error" }, + { "show_format", OPT_BOOL, {(void*)&do_show_format} , "show format/container info" }, + { "show_frames", OPT_BOOL, {(void*)&do_show_frames} , "show frames info" }, + { "show_packets", OPT_BOOL, {(void*)&do_show_packets}, "show packets info" }, + { "show_streams", OPT_BOOL, {(void*)&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, {(void*)opt_default}, "generic catch all option", "" }, + { "i", HAS_ARG, {(void *)opt_input_file}, "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); + 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); + avformat_network_deinit(); + + return ret; +} |
