diff options
Diffstat (limited to 'ffprobe.c')
| -rw-r--r-- | ffprobe.c | 2363 |
1 files changed, 2363 insertions, 0 deletions
diff --git a/ffprobe.c b/ffprobe.c new file mode 100644 index 0000000000..d4adde06e8 --- /dev/null +++ b/ffprobe.c @@ -0,0 +1,2363 @@ +/* + * Copyright (c) 2007-2010 Stefano Sabatini + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * simple media prober based on the FFmpeg libraries + */ + +#include "config.h" +#include "version.h" + +#include <string.h> + +#include "libavformat/avformat.h" +#include "libavcodec/avcodec.h" +#include "libavutil/avassert.h" +#include "libavutil/avstring.h" +#include "libavutil/bprint.h" +#include "libavutil/opt.h" +#include "libavutil/pixdesc.h" +#include "libavutil/dict.h" +#include "libavutil/libm.h" +#include "libavutil/timecode.h" +#include "libavdevice/avdevice.h" +#include "libswscale/swscale.h" +#include "libswresample/swresample.h" +#include "libpostproc/postprocess.h" +#include "cmdutils.h" + +const char program_name[] = "ffprobe"; +const int program_birth_year = 2007; + +static int do_bitexact = 0; +static int do_count_frames = 0; +static int do_count_packets = 0; +static int do_read_frames = 0; +static int do_read_packets = 0; +static int do_show_chapters = 0; +static int do_show_error = 0; +static int do_show_format = 0; +static int do_show_frames = 0; +static int do_show_packets = 0; +static int do_show_streams = 0; +static int do_show_stream_disposition = 0; +static int do_show_data = 0; +static int do_show_program_version = 0; +static int do_show_library_versions = 0; + +static int show_value_unit = 0; +static int use_value_prefix = 0; +static int use_byte_value_binary_prefix = 0; +static int use_value_sexagesimal_format = 0; +static int show_private_data = 1; + +static char *print_format; +static char *stream_specifier; + +/* section structure definition */ + +#define SECTION_MAX_NB_CHILDREN 10 + +struct section { + int id; ///< unique id identifying a section + const char *name; + +#define SECTION_FLAG_IS_WRAPPER 1 ///< the section only contains other sections, but has no data at its own level +#define SECTION_FLAG_IS_ARRAY 2 ///< the section contains an array of elements of the same type +#define SECTION_FLAG_HAS_VARIABLE_FIELDS 4 ///< the section may contain a variable number of fields with variable keys. + /// For these sections the element_name field is mandatory. + int flags; + int children_ids[SECTION_MAX_NB_CHILDREN+1]; ///< list of children section IDS, terminated by -1 + const char *element_name; ///< name of the contained element, if provided + const char *unique_name; ///< unique section name, in case the name is ambiguous + AVDictionary *entries_to_show; + int show_all_entries; +}; + +typedef enum { + SECTION_ID_NONE = -1, + SECTION_ID_CHAPTER, + SECTION_ID_CHAPTER_TAGS, + SECTION_ID_CHAPTERS, + SECTION_ID_ERROR, + SECTION_ID_FORMAT, + SECTION_ID_FORMAT_TAGS, + SECTION_ID_FRAME, + SECTION_ID_FRAMES, + SECTION_ID_FRAME_TAGS, + SECTION_ID_LIBRARY_VERSION, + SECTION_ID_LIBRARY_VERSIONS, + SECTION_ID_PACKET, + SECTION_ID_PACKETS, + SECTION_ID_PACKETS_AND_FRAMES, + SECTION_ID_PROGRAM_VERSION, + SECTION_ID_ROOT, + SECTION_ID_STREAM, + SECTION_ID_STREAM_DISPOSITION, + SECTION_ID_STREAMS, + SECTION_ID_STREAM_TAGS, +} SectionID; + +static struct section sections[] = { + [SECTION_ID_CHAPTERS] = { SECTION_ID_CHAPTERS, "chapters", SECTION_FLAG_IS_ARRAY, { SECTION_ID_CHAPTER, -1 } }, + [SECTION_ID_CHAPTER] = { SECTION_ID_CHAPTER, "chapter", 0, { SECTION_ID_CHAPTER_TAGS, -1 } }, + [SECTION_ID_CHAPTER_TAGS] = { SECTION_ID_CHAPTER_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "chapter_tags" }, + [SECTION_ID_ERROR] = { SECTION_ID_ERROR, "error", 0, { -1 } }, + [SECTION_ID_FORMAT] = { SECTION_ID_FORMAT, "format", 0, { SECTION_ID_FORMAT_TAGS, -1 } }, + [SECTION_ID_FORMAT_TAGS] = { SECTION_ID_FORMAT_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "format_tags" }, + [SECTION_ID_FRAMES] = { SECTION_ID_FRAMES, "frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME, -1 } }, + [SECTION_ID_FRAME] = { SECTION_ID_FRAME, "frame", 0, { SECTION_ID_FRAME_TAGS, -1 } }, + [SECTION_ID_FRAME_TAGS] = { SECTION_ID_FRAME_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "frame_tags" }, + [SECTION_ID_LIBRARY_VERSIONS] = { SECTION_ID_LIBRARY_VERSIONS, "library_versions", SECTION_FLAG_IS_ARRAY, { SECTION_ID_LIBRARY_VERSION, -1 } }, + [SECTION_ID_LIBRARY_VERSION] = { SECTION_ID_LIBRARY_VERSION, "library_version", 0, { -1 } }, + [SECTION_ID_PACKETS] = { SECTION_ID_PACKETS, "packets", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} }, + [SECTION_ID_PACKETS_AND_FRAMES] = { SECTION_ID_PACKETS_AND_FRAMES, "packets_and_frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} }, + [SECTION_ID_PACKET] = { SECTION_ID_PACKET, "packet", 0, { -1 } }, + [SECTION_ID_PROGRAM_VERSION] = { SECTION_ID_PROGRAM_VERSION, "program_version", 0, { -1 } }, + [SECTION_ID_ROOT] = { SECTION_ID_ROOT, "root", SECTION_FLAG_IS_WRAPPER, + { SECTION_ID_CHAPTERS, SECTION_ID_FORMAT, SECTION_ID_FRAMES, SECTION_ID_STREAMS, SECTION_ID_PACKETS, + SECTION_ID_ERROR, SECTION_ID_PROGRAM_VERSION, SECTION_ID_LIBRARY_VERSIONS, -1} }, + [SECTION_ID_STREAMS] = { SECTION_ID_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM, -1 } }, + [SECTION_ID_STREAM] = { SECTION_ID_STREAM, "stream", 0, { SECTION_ID_STREAM_DISPOSITION, SECTION_ID_STREAM_TAGS, -1 } }, + [SECTION_ID_STREAM_DISPOSITION] = { SECTION_ID_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "stream_disposition" }, + [SECTION_ID_STREAM_TAGS] = { SECTION_ID_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "stream_tags" }, +}; + +static const OptionDef *options; + +/* FFprobe context */ +static const char *input_filename; +static AVInputFormat *iformat = NULL; + +static const char *const binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" }; +static const char *const decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" }; + +static const char unit_second_str[] = "s" ; +static const char unit_hertz_str[] = "Hz" ; +static const char unit_byte_str[] = "byte" ; +static const char unit_bit_per_second_str[] = "bit/s"; + +static uint64_t *nb_streams_packets; +static uint64_t *nb_streams_frames; +static int *selected_streams; + +static void ffprobe_cleanup(int ret) +{ + int i; + for (i = 0; i < FF_ARRAY_ELEMS(sections); i++) + av_dict_free(&(sections[i].entries_to_show)); +} + +struct unit_value { + union { double d; long long int i; } val; + const char *unit; +}; + +static char *value_string(char *buf, int buf_size, struct unit_value uv) +{ + double vald; + long long int vali; + int show_float = 0; + + if (uv.unit == unit_second_str) { + vald = uv.val.d; + show_float = 1; + } else { + vald = vali = uv.val.i; + } + + if (uv.unit == unit_second_str && use_value_sexagesimal_format) { + double secs; + int hours, mins; + secs = vald; + mins = (int)secs / 60; + secs = secs - mins * 60; + hours = mins / 60; + mins %= 60; + snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs); + } else { + const char *prefix_string = ""; + + if (use_value_prefix && vald > 1) { + long long int index; + + if (uv.unit == unit_byte_str && use_byte_value_binary_prefix) { + index = (long long int) (log2(vald)) / 10; + index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) - 1); + vald /= exp2(index * 10); + prefix_string = binary_unit_prefixes[index]; + } else { + index = (long long int) (log10(vald)) / 3; + index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) - 1); + vald /= pow(10, index * 3); + prefix_string = decimal_unit_prefixes[index]; + } + } + + if (show_float || (use_value_prefix && vald != (long long int)vald)) + snprintf(buf, buf_size, "%f", vald); + else + snprintf(buf, buf_size, "%lld", vali); + av_strlcatf(buf, buf_size, "%s%s%s", *prefix_string || show_value_unit ? " " : "", + prefix_string, show_value_unit ? uv.unit : ""); + } + + return buf; +} + +/* WRITERS API */ + +typedef struct WriterContext WriterContext; + +#define WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS 1 +#define WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER 2 + +typedef struct Writer { + const AVClass *priv_class; ///< private class of the writer, if any + int priv_size; ///< private size for the writer context + const char *name; + + int (*init) (WriterContext *wctx); + void (*uninit)(WriterContext *wctx); + + void (*print_section_header)(WriterContext *wctx); + void (*print_section_footer)(WriterContext *wctx); + void (*print_integer) (WriterContext *wctx, const char *, long long int); + void (*print_rational) (WriterContext *wctx, AVRational *q, char *sep); + void (*print_string) (WriterContext *wctx, const char *, const char *); + int flags; ///< a combination or WRITER_FLAG_* +} Writer; + +#define SECTION_MAX_NB_LEVELS 10 + +struct WriterContext { + const AVClass *class; ///< class of the writer + const Writer *writer; ///< the Writer of which this is an instance + char *name; ///< name of this writer instance + void *priv; ///< private data for use by the filter + + const struct section *sections; ///< array containing all sections + int nb_sections; ///< number of sections + + int level; ///< current level, starting from 0 + + /** number of the item printed in the given section, starting from 0 */ + unsigned int nb_item[SECTION_MAX_NB_LEVELS]; + + /** section per each level */ + const struct section *section[SECTION_MAX_NB_LEVELS]; + AVBPrint section_pbuf[SECTION_MAX_NB_LEVELS]; ///< generic print buffer dedicated to each section, + /// used by various writers + + unsigned int nb_section_packet; ///< number of the packet section in case we are in "packets_and_frames" section + unsigned int nb_section_frame; ///< number of the frame section in case we are in "packets_and_frames" section + unsigned int nb_section_packet_frame; ///< nb_section_packet or nb_section_frame according if is_packets_and_frames +}; + +static const char *writer_get_name(void *p) +{ + WriterContext *wctx = p; + return wctx->writer->name; +} + +static const AVClass writer_class = { + "Writer", + writer_get_name, + NULL, + LIBAVUTIL_VERSION_INT, +}; + +static void writer_close(WriterContext **wctx) +{ + int i; + + if (!*wctx) + return; + + if ((*wctx)->writer->uninit) + (*wctx)->writer->uninit(*wctx); + for (i = 0; i < SECTION_MAX_NB_LEVELS; i++) + av_bprint_finalize(&(*wctx)->section_pbuf[i], NULL); + if ((*wctx)->writer->priv_class) + av_opt_free((*wctx)->priv); + av_freep(&((*wctx)->priv)); + av_freep(wctx); +} + +static int writer_open(WriterContext **wctx, const Writer *writer, const char *args, + const struct section *sections, int nb_sections) +{ + int i, ret = 0; + + if (!(*wctx = av_mallocz(sizeof(WriterContext)))) { + ret = AVERROR(ENOMEM); + goto fail; + } + + if (!((*wctx)->priv = av_mallocz(writer->priv_size))) { + ret = AVERROR(ENOMEM); + goto fail; + } + + (*wctx)->class = &writer_class; + (*wctx)->writer = writer; + (*wctx)->level = -1; + (*wctx)->sections = sections; + (*wctx)->nb_sections = nb_sections; + + if (writer->priv_class) { + void *priv_ctx = (*wctx)->priv; + *((const AVClass **)priv_ctx) = writer->priv_class; + av_opt_set_defaults(priv_ctx); + + if (args && + (ret = av_set_options_string(priv_ctx, args, "=", ":")) < 0) + goto fail; + } + + for (i = 0; i < SECTION_MAX_NB_LEVELS; i++) + av_bprint_init(&(*wctx)->section_pbuf[i], 1, AV_BPRINT_SIZE_UNLIMITED); + + if ((*wctx)->writer->init) + ret = (*wctx)->writer->init(*wctx); + if (ret < 0) + goto fail; + + return 0; + +fail: + writer_close(wctx); + return ret; +} + +static inline void writer_print_section_header(WriterContext *wctx, + int section_id) +{ + int parent_section_id; + wctx->level++; + av_assert0(wctx->level < SECTION_MAX_NB_LEVELS); + parent_section_id = wctx->level ? + (wctx->section[wctx->level-1])->id : SECTION_ID_NONE; + + wctx->nb_item[wctx->level] = 0; + wctx->section[wctx->level] = &wctx->sections[section_id]; + + if (section_id == SECTION_ID_PACKETS_AND_FRAMES) { + wctx->nb_section_packet = wctx->nb_section_frame = + wctx->nb_section_packet_frame = 0; + } else if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) { + wctx->nb_section_packet_frame = section_id == SECTION_ID_PACKET ? + wctx->nb_section_packet : wctx->nb_section_frame; + } + + if (wctx->writer->print_section_header) + wctx->writer->print_section_header(wctx); +} + +static inline void writer_print_section_footer(WriterContext *wctx) +{ + int section_id = wctx->section[wctx->level]->id; + int parent_section_id = wctx->level ? + wctx->section[wctx->level-1]->id : SECTION_ID_NONE; + + if (parent_section_id != SECTION_ID_NONE) + wctx->nb_item[wctx->level-1]++; + if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) { + if (section_id == SECTION_ID_PACKET) wctx->nb_section_packet++; + else wctx->nb_section_frame++; + } + if (wctx->writer->print_section_footer) + wctx->writer->print_section_footer(wctx); + wctx->level--; +} + +static inline void writer_print_integer(WriterContext *wctx, + const char *key, long long int val) +{ + const struct section *section = wctx->section[wctx->level]; + + if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) { + wctx->writer->print_integer(wctx, key, val); + wctx->nb_item[wctx->level]++; + } +} + +static inline void writer_print_string(WriterContext *wctx, + const char *key, const char *val, int opt) +{ + const struct section *section = wctx->section[wctx->level]; + + if (opt && !(wctx->writer->flags & WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS)) + return; + + if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) { + wctx->writer->print_string(wctx, key, val); + wctx->nb_item[wctx->level]++; + } +} + +static inline void writer_print_rational(WriterContext *wctx, + const char *key, AVRational q, char sep) +{ + AVBPrint buf; + av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC); + av_bprintf(&buf, "%d%c%d", q.num, sep, q.den); + writer_print_string(wctx, key, buf.str, 0); +} + +static void writer_print_time(WriterContext *wctx, const char *key, + int64_t ts, const AVRational *time_base, int is_duration) +{ + char buf[128]; + + if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) { + writer_print_string(wctx, key, "N/A", 1); + } else { + double d = ts * av_q2d(*time_base); + struct unit_value uv; + uv.val.d = d; + uv.unit = unit_second_str; + value_string(buf, sizeof(buf), uv); + writer_print_string(wctx, key, buf, 0); + } +} + +static void writer_print_ts(WriterContext *wctx, const char *key, int64_t ts, int is_duration) +{ + if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) { + writer_print_string(wctx, key, "N/A", 1); + } else { + writer_print_integer(wctx, key, ts); + } +} + +static void writer_print_data(WriterContext *wctx, const char *name, + uint8_t *data, int size) +{ + AVBPrint bp; + int offset = 0, l, i; + + av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED); + av_bprintf(&bp, "\n"); + while (size) { + av_bprintf(&bp, "%08x: ", offset); + l = FFMIN(size, 16); + for (i = 0; i < l; i++) { + av_bprintf(&bp, "%02x", data[i]); + if (i & 1) + av_bprintf(&bp, " "); + } + av_bprint_chars(&bp, ' ', 41 - 2 * i - i / 2); + for (i = 0; i < l; i++) + av_bprint_chars(&bp, data[i] - 32U < 95 ? data[i] : '.', 1); + av_bprintf(&bp, "\n"); + offset += l; + data += l; + size -= l; + } + writer_print_string(wctx, name, bp.str, 0); + av_bprint_finalize(&bp, NULL); +} + +#define MAX_REGISTERED_WRITERS_NB 64 + +static const Writer *registered_writers[MAX_REGISTERED_WRITERS_NB + 1]; + +static int writer_register(const Writer *writer) +{ + static int next_registered_writer_idx = 0; + + if (next_registered_writer_idx == MAX_REGISTERED_WRITERS_NB) + return AVERROR(ENOMEM); + + registered_writers[next_registered_writer_idx++] = writer; + return 0; +} + +static const Writer *writer_get_by_name(const char *name) +{ + int i; + + for (i = 0; registered_writers[i]; i++) + if (!strcmp(registered_writers[i]->name, name)) + return registered_writers[i]; + + return NULL; +} + + +/* WRITERS */ + +#define DEFINE_WRITER_CLASS(name) \ +static const char *name##_get_name(void *ctx) \ +{ \ + return #name ; \ +} \ +static const AVClass name##_class = { \ + #name, \ + name##_get_name, \ + name##_options \ +} + +/* Default output */ + +typedef struct DefaultContext { + const AVClass *class; + int nokey; + int noprint_wrappers; + int nested_section[SECTION_MAX_NB_LEVELS]; +} DefaultContext; + +#define OFFSET(x) offsetof(DefaultContext, x) + +static const AVOption default_options[] = { + { "noprint_wrappers", "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + { "nw", "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + { "nokey", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + { "nk", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + {NULL}, +}; + +DEFINE_WRITER_CLASS(default); + +/* lame uppercasing routine, assumes the string is lower case ASCII */ +static inline char *upcase_string(char *dst, size_t dst_size, const char *src) +{ + int i; + for (i = 0; src[i] && i < dst_size-1; i++) + dst[i] = av_toupper(src[i]); + dst[i] = 0; + return dst; +} + +static void default_print_section_header(WriterContext *wctx) +{ + DefaultContext *def = wctx->priv; + char buf[32]; + const struct section *section = wctx->section[wctx->level]; + const struct section *parent_section = wctx->level ? + wctx->section[wctx->level-1] : NULL; + + av_bprint_clear(&wctx->section_pbuf[wctx->level]); + if (parent_section && + !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) { + def->nested_section[wctx->level] = 1; + av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:", + wctx->section_pbuf[wctx->level-1].str, + upcase_string(buf, sizeof(buf), + av_x_if_null(section->element_name, section->name))); + } + + if (def->noprint_wrappers || def->nested_section[wctx->level]) + return; + + if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) + printf("[%s]\n", upcase_string(buf, sizeof(buf), section->name)); +} + +static void default_print_section_footer(WriterContext *wctx) +{ + DefaultContext *def = wctx->priv; + const struct section *section = wctx->section[wctx->level]; + char buf[32]; + + if (def->noprint_wrappers || def->nested_section[wctx->level]) + return; + + if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) + printf("[/%s]\n", upcase_string(buf, sizeof(buf), section->name)); +} + +static void default_print_str(WriterContext *wctx, const char *key, const char *value) +{ + DefaultContext *def = wctx->priv; + + if (!def->nokey) + printf("%s%s=", wctx->section_pbuf[wctx->level].str, key); + printf("%s\n", value); +} + +static void default_print_int(WriterContext *wctx, const char *key, long long int value) +{ + DefaultContext *def = wctx->priv; + + if (!def->nokey) + printf("%s%s=", wctx->section_pbuf[wctx->level].str, key); + printf("%lld\n", value); +} + +static const Writer default_writer = { + .name = "default", + .priv_size = sizeof(DefaultContext), + .print_section_header = default_print_section_header, + .print_section_footer = default_print_section_footer, + .print_integer = default_print_int, + .print_string = default_print_str, + .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS, + .priv_class = &default_class, +}; + +/* Compact output */ + +/** + * Apply C-language-like string escaping. + */ +static const char *c_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx) +{ + const char *p; + + for (p = src; *p; p++) { + switch (*p) { + case '\b': av_bprintf(dst, "%s", "\\b"); break; + case '\f': av_bprintf(dst, "%s", "\\f"); break; + case '\n': av_bprintf(dst, "%s", "\\n"); break; + case '\r': av_bprintf(dst, "%s", "\\r"); break; + case '\\': av_bprintf(dst, "%s", "\\\\"); break; + default: + if (*p == sep) + av_bprint_chars(dst, '\\', 1); + av_bprint_chars(dst, *p, 1); + } + } + return dst->str; +} + +/** + * Quote fields containing special characters, check RFC4180. + */ +static const char *csv_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx) +{ + char meta_chars[] = { sep, '"', '\n', '\r', '\0' }; + int needs_quoting = !!src[strcspn(src, meta_chars)]; + + if (needs_quoting) + av_bprint_chars(dst, '"', 1); + + for (; *src; src++) { + if (*src == '"') + av_bprint_chars(dst, '"', 1); + av_bprint_chars(dst, *src, 1); + } + if (needs_quoting) + av_bprint_chars(dst, '"', 1); + return dst->str; +} + +static const char *none_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx) +{ + return src; +} + +typedef struct CompactContext { + const AVClass *class; + char *item_sep_str; + char item_sep; + int nokey; + int print_section; + char *escape_mode_str; + const char * (*escape_str)(AVBPrint *dst, const char *src, const char sep, void *log_ctx); + int nested_section[SECTION_MAX_NB_LEVELS]; +} CompactContext; + +#undef OFFSET +#define OFFSET(x) offsetof(CompactContext, x) + +static const AVOption compact_options[]= { + {"item_sep", "set item separator", OFFSET(item_sep_str), AV_OPT_TYPE_STRING, {.str="|"}, CHAR_MIN, CHAR_MAX }, + {"s", "set item separator", OFFSET(item_sep_str), AV_OPT_TYPE_STRING, {.str="|"}, CHAR_MIN, CHAR_MAX }, + {"nokey", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + {"nk", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + {"escape", "set escape mode", OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"}, CHAR_MIN, CHAR_MAX }, + {"e", "set escape mode", OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"}, CHAR_MIN, CHAR_MAX }, + {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {"p", "print section name", OFFSET(print_section), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {NULL}, +}; + +DEFINE_WRITER_CLASS(compact); + +static av_cold int compact_init(WriterContext *wctx) +{ + CompactContext *compact = wctx->priv; + + if (strlen(compact->item_sep_str) != 1) { + av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n", + compact->item_sep_str); + return AVERROR(EINVAL); + } + compact->item_sep = compact->item_sep_str[0]; + + if (!strcmp(compact->escape_mode_str, "none")) compact->escape_str = none_escape_str; + else if (!strcmp(compact->escape_mode_str, "c" )) compact->escape_str = c_escape_str; + else if (!strcmp(compact->escape_mode_str, "csv" )) compact->escape_str = csv_escape_str; + else { + av_log(wctx, AV_LOG_ERROR, "Unknown escape mode '%s'\n", compact->escape_mode_str); + return AVERROR(EINVAL); + } + + return 0; +} + +static void compact_print_section_header(WriterContext *wctx) +{ + CompactContext *compact = wctx->priv; + const struct section *section = wctx->section[wctx->level]; + const struct section *parent_section = wctx->level ? + wctx->section[wctx->level-1] : NULL; + + av_bprint_clear(&wctx->section_pbuf[wctx->level]); + if (parent_section && + !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) { + compact->nested_section[wctx->level] = 1; + av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:", + wctx->section_pbuf[wctx->level-1].str, + (char *)av_x_if_null(section->element_name, section->name)); + wctx->nb_item[wctx->level] = wctx->nb_item[wctx->level-1]; + } else if (compact->print_section && + !(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) + printf("%s%c", section->name, compact->item_sep); +} + +static void compact_print_section_footer(WriterContext *wctx) +{ + CompactContext *compact = wctx->priv; + + if (!compact->nested_section[wctx->level] && + !(wctx->section[wctx->level]->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) + printf("\n"); +} + +static void compact_print_str(WriterContext *wctx, const char *key, const char *value) +{ + CompactContext *compact = wctx->priv; + AVBPrint buf; + + if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep); + if (!compact->nokey) + printf("%s%s=", wctx->section_pbuf[wctx->level].str, key); + av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED); + printf("%s", compact->escape_str(&buf, value, compact->item_sep, wctx)); + av_bprint_finalize(&buf, NULL); +} + +static void compact_print_int(WriterContext *wctx, const char *key, long long int value) +{ + CompactContext *compact = wctx->priv; + + if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep); + if (!compact->nokey) + printf("%s%s=", wctx->section_pbuf[wctx->level].str, key); + printf("%lld", value); +} + +static const Writer compact_writer = { + .name = "compact", + .priv_size = sizeof(CompactContext), + .init = compact_init, + .print_section_header = compact_print_section_header, + .print_section_footer = compact_print_section_footer, + .print_integer = compact_print_int, + .print_string = compact_print_str, + .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS, + .priv_class = &compact_class, +}; + +/* CSV output */ + +#undef OFFSET +#define OFFSET(x) offsetof(CompactContext, x) + +static const AVOption csv_options[] = { + {"item_sep", "set item separator", OFFSET(item_sep_str), AV_OPT_TYPE_STRING, {.str=","}, CHAR_MIN, CHAR_MAX }, + {"s", "set item separator", OFFSET(item_sep_str), AV_OPT_TYPE_STRING, {.str=","}, CHAR_MIN, CHAR_MAX }, + {"nokey", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {"nk", "force no key printing", OFFSET(nokey), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {"escape", "set escape mode", OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, CHAR_MIN, CHAR_MAX }, + {"e", "set escape mode", OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, CHAR_MIN, CHAR_MAX }, + {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {"p", "print section name", OFFSET(print_section), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {NULL}, +}; + +DEFINE_WRITER_CLASS(csv); + +static const Writer csv_writer = { + .name = "csv", + .priv_size = sizeof(CompactContext), + .init = compact_init, + .print_section_header = compact_print_section_header, + .print_section_footer = compact_print_section_footer, + .print_integer = compact_print_int, + .print_string = compact_print_str, + .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS, + .priv_class = &csv_class, +}; + +/* Flat output */ + +typedef struct FlatContext { + const AVClass *class; + const char *sep_str; + char sep; + int hierarchical; +} FlatContext; + +#undef OFFSET +#define OFFSET(x) offsetof(FlatContext, x) + +static const AVOption flat_options[]= { + {"sep_char", "set separator", OFFSET(sep_str), AV_OPT_TYPE_STRING, {.str="."}, CHAR_MIN, CHAR_MAX }, + {"s", "set separator", OFFSET(sep_str), AV_OPT_TYPE_STRING, {.str="."}, CHAR_MIN, CHAR_MAX }, + {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {"h", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {NULL}, +}; + +DEFINE_WRITER_CLASS(flat); + +static av_cold int flat_init(WriterContext *wctx) +{ + FlatContext *flat = wctx->priv; + + if (strlen(flat->sep_str) != 1) { + av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n", + flat->sep_str); + return AVERROR(EINVAL); + } + flat->sep = flat->sep_str[0]; + + return 0; +} + +static const char *flat_escape_key_str(AVBPrint *dst, const char *src, const char sep) +{ + const char *p; + + for (p = src; *p; p++) { + if (!((*p >= '0' && *p <= '9') || + (*p >= 'a' && *p <= 'z') || + (*p >= 'A' && *p <= 'Z'))) + av_bprint_chars(dst, '_', 1); + else + av_bprint_chars(dst, *p, 1); + } + return dst->str; +} + +static const char *flat_escape_value_str(AVBPrint *dst, const char *src) +{ + const char *p; + + for (p = src; *p; p++) { + switch (*p) { + case '\n': av_bprintf(dst, "%s", "\\n"); break; + case '\r': av_bprintf(dst, "%s", "\\r"); break; + case '\\': av_bprintf(dst, "%s", "\\\\"); break; + case '"': av_bprintf(dst, "%s", "\\\""); break; + case '`': av_bprintf(dst, "%s", "\\`"); break; + case '$': av_bprintf(dst, "%s", "\\$"); break; + default: av_bprint_chars(dst, *p, 1); break; + } + } + return dst->str; +} + +static void flat_print_section_header(WriterContext *wctx) +{ + FlatContext *flat = wctx->priv; + AVBPrint *buf = &wctx->section_pbuf[wctx->level]; + const struct section *section = wctx->section[wctx->level]; + const struct section *parent_section = wctx->level ? + wctx->section[wctx->level-1] : NULL; + + /* build section header */ + av_bprint_clear(buf); + if (!parent_section) + return; + av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str); + + if (flat->hierarchical || + !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) { + av_bprintf(buf, "%s%s", wctx->section[wctx->level]->name, flat->sep_str); + + if (parent_section->flags & SECTION_FLAG_IS_ARRAY) { + int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ? + wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1]; + av_bprintf(buf, "%d%s", n, flat->sep_str); + } + } +} + +static void flat_print_int(WriterContext *wctx, const char *key, long long int value) +{ + printf("%s%s=%lld\n", wctx->section_pbuf[wctx->level].str, key, value); +} + +static void flat_print_str(WriterContext *wctx, const char *key, const char *value) +{ + FlatContext *flat = wctx->priv; + AVBPrint buf; + + printf("%s", wctx->section_pbuf[wctx->level].str); + av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED); + printf("%s=", flat_escape_key_str(&buf, key, flat->sep)); + av_bprint_clear(&buf); + printf("\"%s\"\n", flat_escape_value_str(&buf, value)); + av_bprint_finalize(&buf, NULL); +} + +static const Writer flat_writer = { + .name = "flat", + .priv_size = sizeof(FlatContext), + .init = flat_init, + .print_section_header = flat_print_section_header, + .print_integer = flat_print_int, + .print_string = flat_print_str, + .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER, + .priv_class = &flat_class, +}; + +/* INI format output */ + +typedef struct { + const AVClass *class; + int hierarchical; +} INIContext; + +#undef OFFSET +#define OFFSET(x) offsetof(INIContext, x) + +static const AVOption ini_options[] = { + {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {"h", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 }, + {NULL}, +}; + +DEFINE_WRITER_CLASS(ini); + +static char *ini_escape_str(AVBPrint *dst, const char *src) +{ + int i = 0; + char c = 0; + + while (c = src[i++]) { + switch (c) { + case '\b': av_bprintf(dst, "%s", "\\b"); break; + case '\f': av_bprintf(dst, "%s", "\\f"); break; + case '\n': av_bprintf(dst, "%s", "\\n"); break; + case '\r': av_bprintf(dst, "%s", "\\r"); break; + case '\t': av_bprintf(dst, "%s", "\\t"); break; + case '\\': + case '#' : + case '=' : + case ':' : av_bprint_chars(dst, '\\', 1); + default: + if ((unsigned char)c < 32) + av_bprintf(dst, "\\x00%02x", c & 0xff); + else + av_bprint_chars(dst, c, 1); + break; + } + } + return dst->str; +} + +static void ini_print_section_header(WriterContext *wctx) +{ + INIContext *ini = wctx->priv; + AVBPrint *buf = &wctx->section_pbuf[wctx->level]; + const struct section *section = wctx->section[wctx->level]; + const struct section *parent_section = wctx->level ? + wctx->section[wctx->level-1] : NULL; + + av_bprint_clear(buf); + if (!parent_section) { + printf("# ffprobe output\n\n"); + return; + } + + if (wctx->nb_item[wctx->level-1]) + printf("\n"); + + av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str); + if (ini->hierarchical || + !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) { + av_bprintf(buf, "%s%s", buf->str[0] ? "." : "", wctx->section[wctx->level]->name); + + if (parent_section->flags & SECTION_FLAG_IS_ARRAY) { + int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ? + wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1]; + av_bprintf(buf, ".%d", n); + } + } + + if (!(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) + printf("[%s]\n", buf->str); +} + +static void ini_print_str(WriterContext *wctx, const char *key, const char *value) +{ + AVBPrint buf; + + av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED); + printf("%s=", ini_escape_str(&buf, key)); + av_bprint_clear(&buf); + printf("%s\n", ini_escape_str(&buf, value)); + av_bprint_finalize(&buf, NULL); +} + +static void ini_print_int(WriterContext *wctx, const char *key, long long int value) +{ + printf("%s=%lld\n", key, value); +} + +static const Writer ini_writer = { + .name = "ini", + .priv_size = sizeof(INIContext), + .print_section_header = ini_print_section_header, + .print_integer = ini_print_int, + .print_string = ini_print_str, + .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER, + .priv_class = &ini_class, +}; + +/* JSON output */ + +typedef struct { + const AVClass *class; + int indent_level; + int compact; + const char *item_sep, *item_start_end; +} JSONContext; + +#undef OFFSET +#define OFFSET(x) offsetof(JSONContext, x) + +static const AVOption json_options[]= { + { "compact", "enable compact output", OFFSET(compact), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + { "c", "enable compact output", OFFSET(compact), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + { NULL } +}; + +DEFINE_WRITER_CLASS(json); + +static av_cold int json_init(WriterContext *wctx) +{ + JSONContext *json = wctx->priv; + + json->item_sep = json->compact ? ", " : ",\n"; + json->item_start_end = json->compact ? " " : "\n"; + + return 0; +} + +static const char *json_escape_str(AVBPrint *dst, const char *src, void *log_ctx) +{ + static const char json_escape[] = {'"', '\\', '\b', '\f', '\n', '\r', '\t', 0}; + static const char json_subst[] = {'"', '\\', 'b', 'f', 'n', 'r', 't', 0}; + const char *p; + + for (p = src; *p; p++) { + char *s = strchr(json_escape, *p); + if (s) { + av_bprint_chars(dst, '\\', 1); + av_bprint_chars(dst, json_subst[s - json_escape], 1); + } else if ((unsigned char)*p < 32) { + av_bprintf(dst, "\\u00%02x", *p & 0xff); + } else { + av_bprint_chars(dst, *p, 1); + } + } + return dst->str; +} + +#define JSON_INDENT() printf("%*c", json->indent_level * 4, ' ') + +static void json_print_section_header(WriterContext *wctx) +{ + JSONContext *json = wctx->priv; + AVBPrint buf; + const struct section *section = wctx->section[wctx->level]; + const struct section *parent_section = wctx->level ? + wctx->section[wctx->level-1] : NULL; + + if (wctx->level && wctx->nb_item[wctx->level-1]) + printf(",\n"); + + if (section->flags & SECTION_FLAG_IS_WRAPPER) { + printf("{\n"); + json->indent_level++; + } else { + av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED); + json_escape_str(&buf, section->name, wctx); + JSON_INDENT(); + + json->indent_level++; + if (section->flags & SECTION_FLAG_IS_ARRAY) { + printf("\"%s\": [\n", buf.str); + } else if (parent_section && !(parent_section->flags & SECTION_FLAG_IS_ARRAY)) { + printf("\"%s\": {%s", buf.str, json->item_start_end); + } else { + printf("{%s", json->item_start_end); + + /* this is required so the parser can distinguish between packets and frames */ + if (parent_section && parent_section->id == SECTION_ID_PACKETS_AND_FRAMES) { + if (!json->compact) + JSON_INDENT(); + printf("\"type\": \"%s\"%s", section->name, json->item_sep); + } + } + av_bprint_finalize(&buf, NULL); + } +} + +static void json_print_section_footer(WriterContext *wctx) +{ + JSONContext *json = wctx->priv; + const struct section *section = wctx->section[wctx->level]; + + if (wctx->level == 0) { + json->indent_level--; + printf("\n}\n"); + } else if (section->flags & SECTION_FLAG_IS_ARRAY) { + printf("\n"); + json->indent_level--; + JSON_INDENT(); + printf("]"); + } else { + printf("%s", json->item_start_end); + json->indent_level--; + if (!json->compact) + JSON_INDENT(); + printf("}"); + } +} + +static inline void json_print_item_str(WriterContext *wctx, + const char *key, const char *value) +{ + AVBPrint buf; + + av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED); + printf("\"%s\":", json_escape_str(&buf, key, wctx)); + av_bprint_clear(&buf); + printf(" \"%s\"", json_escape_str(&buf, value, wctx)); + av_bprint_finalize(&buf, NULL); +} + +static void json_print_str(WriterContext *wctx, const char *key, const char *value) +{ + JSONContext *json = wctx->priv; + + if (wctx->nb_item[wctx->level]) + printf("%s", json->item_sep); + if (!json->compact) + JSON_INDENT(); + json_print_item_str(wctx, key, value); +} + +static void json_print_int(WriterContext *wctx, const char *key, long long int value) +{ + JSONContext *json = wctx->priv; + AVBPrint buf; + + if (wctx->nb_item[wctx->level]) + printf("%s", json->item_sep); + if (!json->compact) + JSON_INDENT(); + + av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED); + printf("\"%s\": %lld", json_escape_str(&buf, key, wctx), value); + av_bprint_finalize(&buf, NULL); +} + +static const Writer json_writer = { + .name = "json", + .priv_size = sizeof(JSONContext), + .init = json_init, + .print_section_header = json_print_section_header, + .print_section_footer = json_print_section_footer, + .print_integer = json_print_int, + .print_string = json_print_str, + .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER, + .priv_class = &json_class, +}; + +/* XML output */ + +typedef struct { + const AVClass *class; + int within_tag; + int indent_level; + int fully_qualified; + int xsd_strict; +} XMLContext; + +#undef OFFSET +#define OFFSET(x) offsetof(XMLContext, x) + +static const AVOption xml_options[] = { + {"fully_qualified", "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + {"q", "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + {"xsd_strict", "ensure that the output is XSD compliant", OFFSET(xsd_strict), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + {"x", "ensure that the output is XSD compliant", OFFSET(xsd_strict), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 }, + {NULL}, +}; + +DEFINE_WRITER_CLASS(xml); + +static av_cold int xml_init(WriterContext *wctx) +{ + XMLContext *xml = wctx->priv; + + if (xml->xsd_strict) { + xml->fully_qualified = 1; +#define CHECK_COMPLIANCE(opt, opt_name) \ + if (opt) { \ + av_log(wctx, AV_LOG_ERROR, \ + "XSD-compliant output selected but option '%s' was selected, XML output may be non-compliant.\n" \ + "You need to disable such option with '-no%s'\n", opt_name, opt_name); \ + return AVERROR(EINVAL); \ + } + CHECK_COMPLIANCE(show_private_data, "private"); + CHECK_COMPLIANCE(show_value_unit, "unit"); + CHECK_COMPLIANCE(use_value_prefix, "prefix"); + + if (do_show_frames && do_show_packets) { + av_log(wctx, AV_LOG_ERROR, + "Interleaved frames and packets are not allowed in XSD. " + "Select only one between the -show_frames and the -show_packets options.\n"); + return AVERROR(EINVAL); + } + } + + return 0; +} + +static const char *xml_escape_str(AVBPrint *dst, const char *src, void *log_ctx) +{ + const char *p; + + for (p = src; *p; p++) { + switch (*p) { + case '&' : av_bprintf(dst, "%s", "&"); break; + case '<' : av_bprintf(dst, "%s", "<"); break; + case '>' : av_bprintf(dst, "%s", ">"); break; + case '"' : av_bprintf(dst, "%s", """); break; + case '\'': av_bprintf(dst, "%s", "'"); break; + default: av_bprint_chars(dst, *p, 1); + } + } + + return dst->str; +} + +#define XML_INDENT() printf("%*c", xml->indent_level * 4, ' ') + +static void xml_print_section_header(WriterContext *wctx) +{ + XMLContext *xml = wctx->priv; + const struct section *section = wctx->section[wctx->level]; + const struct section *parent_section = wctx->level ? + wctx->section[wctx->level-1] : NULL; + + if (wctx->level == 0) { + const char *qual = " xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' " + "xmlns:ffprobe='http://www.ffmpeg.org/schema/ffprobe' " + "xsi:schemaLocation='http://www.ffmpeg.org/schema/ffprobe ffprobe.xsd'"; + + printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"); + printf("<%sffprobe%s>\n", + xml->fully_qualified ? "ffprobe:" : "", + xml->fully_qualified ? qual : ""); + return; + } + + if (xml->within_tag) { + xml->within_tag = 0; + printf(">\n"); + } + if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) { + xml->indent_level++; + } else { + if (parent_section && (parent_section->flags & SECTION_FLAG_IS_WRAPPER) && + wctx->level && wctx->nb_item[wctx->level-1]) + printf("\n"); + xml->indent_level++; + + if (section->flags & SECTION_FLAG_IS_ARRAY) { + XML_INDENT(); printf("<%s>\n", section->name); + } else { + XML_INDENT(); printf("<%s ", section->name); + xml->within_tag = 1; + } + } +} + +static void xml_print_section_footer(WriterContext *wctx) +{ + XMLContext *xml = wctx->priv; + const struct section *section = wctx->section[wctx->level]; + + if (wctx->level == 0) { + printf("</%sffprobe>\n", xml->fully_qualified ? "ffprobe:" : ""); + } else if (xml->within_tag) { + xml->within_tag = 0; + printf("/>\n"); + xml->indent_level--; + } else if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) { + xml->indent_level--; + } else { + XML_INDENT(); printf("</%s>\n", section->name); + xml->indent_level--; + } +} + +static void xml_print_str(WriterContext *wctx, const char *key, const char *value) +{ + AVBPrint buf; + XMLContext *xml = wctx->priv; + const struct section *section = wctx->section[wctx->level]; + + av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED); + + if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) { + XML_INDENT(); + printf("<%s key=\"%s\"", + section->element_name, xml_escape_str(&buf, key, wctx)); + av_bprint_clear(&buf); + printf(" value=\"%s\"/>\n", xml_escape_str(&buf, value, wctx)); + } else { + if (wctx->nb_item[wctx->level]) + printf(" "); + printf("%s=\"%s\"", key, xml_escape_str(&buf, value, wctx)); + } + + av_bprint_finalize(&buf, NULL); +} + +static void xml_print_int(WriterContext *wctx, const char *key, long long int value) +{ + if (wctx->nb_item[wctx->level]) + printf(" "); + printf("%s=\"%lld\"", key, value); +} + +static Writer xml_writer = { + .name = "xml", + .priv_size = sizeof(XMLContext), + .init = xml_init, + .print_section_header = xml_print_section_header, + .print_section_footer = xml_print_section_footer, + .print_integer = xml_print_int, + .print_string = xml_print_str, + .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER, + .priv_class = &xml_class, +}; + +static void writer_register_all(void) +{ + static int initialized; + + if (initialized) + return; + initialized = 1; + + writer_register(&default_writer); + writer_register(&compact_writer); + writer_register(&csv_writer); + writer_register(&flat_writer); + writer_register(&ini_writer); + writer_register(&json_writer); + writer_register(&xml_writer); +} + +#define print_fmt(k, f, ...) do { \ + av_bprint_clear(&pbuf); \ + av_bprintf(&pbuf, f, __VA_ARGS__); \ + writer_print_string(w, k, pbuf.str, 0); \ +} while (0) + +#define print_int(k, v) writer_print_integer(w, k, v) +#define print_q(k, v, s) writer_print_rational(w, k, v, s) +#define print_str(k, v) writer_print_string(w, k, v, 0) +#define print_str_opt(k, v) writer_print_string(w, k, v, 1) +#define print_time(k, v, tb) writer_print_time(w, k, v, tb, 0) +#define print_ts(k, v) writer_print_ts(w, k, v, 0) +#define print_duration_time(k, v, tb) writer_print_time(w, k, v, tb, 1) +#define print_duration_ts(k, v) writer_print_ts(w, k, v, 1) +#define print_val(k, v, u) do { \ + struct unit_value uv; \ + uv.val.i = v; \ + uv.unit = u; \ + writer_print_string(w, k, value_string(val_str, sizeof(val_str), uv), 0); \ +} while (0) + +#define print_section_header(s) writer_print_section_header(w, s) +#define print_section_footer(s) writer_print_section_footer(w, s) + +static inline void show_tags(WriterContext *wctx, AVDictionary *tags, int section_id) +{ + AVDictionaryEntry *tag = NULL; + + if (!tags) + return; + writer_print_section_header(wctx, section_id); + while ((tag = av_dict_get(tags, "", tag, AV_DICT_IGNORE_SUFFIX))) + writer_print_string(wctx, tag->key, tag->value, 0); + writer_print_section_footer(wctx); +} + +static void show_packet(WriterContext *w, AVFormatContext *fmt_ctx, AVPacket *pkt, int packet_idx) +{ + char val_str[128]; + AVStream *st = fmt_ctx->streams[pkt->stream_index]; + AVBPrint pbuf; + const char *s; + + av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED); + + writer_print_section_header(w, SECTION_ID_PACKET); + + s = av_get_media_type_string(st->codec->codec_type); + if (s) print_str ("codec_type", s); + else print_str_opt("codec_type", "unknown"); + print_int("stream_index", pkt->stream_index); + print_ts ("pts", pkt->pts); + print_time("pts_time", pkt->pts, &st->time_base); + print_ts ("dts", pkt->dts); + print_time("dts_time", pkt->dts, &st->time_base); + print_duration_ts("duration", pkt->duration); + print_duration_time("duration_time", pkt->duration, &st->time_base); + print_duration_ts("convergence_duration", pkt->convergence_duration); + print_duration_time("convergence_duration_time", pkt->convergence_duration, &st->time_base); + print_val("size", pkt->size, unit_byte_str); + if (pkt->pos != -1) print_fmt ("pos", "%"PRId64, pkt->pos); + else print_str_opt("pos", "N/A"); + print_fmt("flags", "%c", pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_'); + if (do_show_data) + writer_print_data(w, "data", pkt->data, pkt->size); + writer_print_section_footer(w); + + av_bprint_finalize(&pbuf, NULL); + fflush(stdout); +} + +static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream, + AVFormatContext *fmt_ctx) +{ + AVBPrint pbuf; + const char *s; + + av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED); + + writer_print_section_header(w, SECTION_ID_FRAME); + + s = av_get_media_type_string(stream->codec->codec_type); + if (s) print_str ("media_type", s); + else print_str_opt("media_type", "unknown"); + print_int("key_frame", frame->key_frame); + print_ts ("pkt_pts", frame->pkt_pts); + print_time("pkt_pts_time", frame->pkt_pts, &stream->time_base); + print_ts ("pkt_dts", frame->pkt_dts); + print_time("pkt_dts_time", frame->pkt_dts, &stream->time_base); + print_duration_ts ("pkt_duration", av_frame_get_pkt_duration(frame)); + print_duration_time("pkt_duration_time", av_frame_get_pkt_duration(frame), &stream->time_base); + if (av_frame_get_pkt_pos (frame) != -1) print_fmt ("pkt_pos", "%"PRId64, av_frame_get_pkt_pos(frame)); + else print_str_opt("pkt_pos", "N/A"); + if (av_frame_get_pkt_size(frame) != -1) print_fmt ("pkt_size", "%d", av_frame_get_pkt_size(frame)); + else print_str_opt("pkt_size", "N/A"); + + switch (stream->codec->codec_type) { + AVRational sar; + + case AVMEDIA_TYPE_VIDEO: + print_int("width", frame->width); + print_int("height", frame->height); + s = av_get_pix_fmt_name(frame->format); + if (s) print_str ("pix_fmt", s); + else print_str_opt("pix_fmt", "unknown"); + sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, frame); + if (sar.num) { + print_q("sample_aspect_ratio", sar, ':'); + } else { + print_str_opt("sample_aspect_ratio", "N/A"); + } + print_fmt("pict_type", "%c", av_get_picture_type_char(frame->pict_type)); + print_int("coded_picture_number", frame->coded_picture_number); + print_int("display_picture_number", frame->display_picture_number); + print_int("interlaced_frame", frame->interlaced_frame); + print_int("top_field_first", frame->top_field_first); + print_int("repeat_pict", frame->repeat_pict); + break; + + case AVMEDIA_TYPE_AUDIO: + s = av_get_sample_fmt_name(frame->format); + if (s) print_str ("sample_fmt", s); + else print_str_opt("sample_fmt", "unknown"); + print_int("nb_samples", frame->nb_samples); + print_int("channels", av_frame_get_channels(frame)); + if (av_frame_get_channel_layout(frame)) { + av_bprint_clear(&pbuf); + av_bprint_channel_layout(&pbuf, av_frame_get_channels(frame), + av_frame_get_channel_layout(frame)); + print_str ("channel_layout", pbuf.str); + } else + print_str_opt("channel_layout", "unknown"); + break; + } + show_tags(w, av_frame_get_metadata(frame), SECTION_ID_FRAME_TAGS); + + writer_print_section_footer(w); + + av_bprint_finalize(&pbuf, NULL); + fflush(stdout); +} + +static av_always_inline int process_frame(WriterContext *w, + AVFormatContext *fmt_ctx, + AVFrame *frame, AVPacket *pkt) +{ + AVCodecContext *dec_ctx = fmt_ctx->streams[pkt->stream_index]->codec; + int ret = 0, got_frame = 0; + + avcodec_get_frame_defaults(frame); + if (dec_ctx->codec) { + switch (dec_ctx->codec_type) { + case AVMEDIA_TYPE_VIDEO: + ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, pkt); + break; + + case AVMEDIA_TYPE_AUDIO: + ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, pkt); + break; + } + } + + if (ret < 0) + return ret; + ret = FFMIN(ret, pkt->size); /* guard against bogus return values */ + pkt->data += ret; + pkt->size -= ret; + if (got_frame) { + nb_streams_frames[pkt->stream_index]++; + if (do_show_frames) + show_frame(w, frame, fmt_ctx->streams[pkt->stream_index], fmt_ctx); + } + return got_frame; +} + +static void read_packets(WriterContext *w, AVFormatContext *fmt_ctx) +{ + AVPacket pkt, pkt1; + AVFrame frame; + int i = 0; + + av_init_packet(&pkt); + + while (!av_read_frame(fmt_ctx, &pkt)) { + if (selected_streams[pkt.stream_index]) { + if (do_read_packets) { + if (do_show_packets) + show_packet(w, fmt_ctx, &pkt, i++); + nb_streams_packets[pkt.stream_index]++; + } + if (do_read_frames) { + pkt1 = pkt; + while (pkt1.size && process_frame(w, fmt_ctx, &frame, &pkt1) > 0); + } + } + av_free_packet(&pkt); + } + av_init_packet(&pkt); + pkt.data = NULL; + pkt.size = 0; + //Flush remaining frames that are cached in the decoder + for (i = 0; i < fmt_ctx->nb_streams; i++) { + pkt.stream_index = i; + if (do_read_frames) + while (process_frame(w, fmt_ctx, &frame, &pkt) > 0); + } +} + +static void show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx) +{ + AVStream *stream = fmt_ctx->streams[stream_idx]; + AVCodecContext *dec_ctx; + const AVCodec *dec; + char val_str[128]; + const char *s; + AVRational sar, dar; + AVBPrint pbuf; + + av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED); + + writer_print_section_header(w, SECTION_ID_STREAM); + + print_int("index", stream->index); + + if ((dec_ctx = stream->codec)) { + const char *profile = NULL; + dec = dec_ctx->codec; + if (dec) { + print_str("codec_name", dec->name); + if (!do_bitexact) { + if (dec->long_name) print_str ("codec_long_name", dec->long_name); + else print_str_opt("codec_long_name", "unknown"); + } + } else { + print_str_opt("codec_name", "unknown"); + if (!do_bitexact) { + print_str_opt("codec_long_name", "unknown"); + } + } + + if (dec && (profile = av_get_profile_name(dec, dec_ctx->profile))) + print_str("profile", profile); + else + print_str_opt("profile", "unknown"); + + s = av_get_media_type_string(dec_ctx->codec_type); + if (s) print_str ("codec_type", s); + else print_str_opt("codec_type", "unknown"); + print_q("codec_time_base", dec_ctx->time_base, '/'); + + /* print AVI/FourCC tag */ + av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag); + print_str("codec_tag_string", val_str); + print_fmt("codec_tag", "0x%04x", dec_ctx->codec_tag); + + switch (dec_ctx->codec_type) { + case AVMEDIA_TYPE_VIDEO: + print_int("width", dec_ctx->width); + print_int("height", dec_ctx->height); + print_int("has_b_frames", dec_ctx->has_b_frames); + sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, NULL); + if (sar.den) { + print_q("sample_aspect_ratio", sar, ':'); + av_reduce(&dar.num, &dar.den, + dec_ctx->width * sar.num, + dec_ctx->height * sar.den, + 1024*1024); + print_q("display_aspect_ratio", dar, ':'); + } else { + print_str_opt("sample_aspect_ratio", "N/A"); + print_str_opt("display_aspect_ratio", "N/A"); + } + s = av_get_pix_fmt_name(dec_ctx->pix_fmt); + if (s) print_str ("pix_fmt", s); + else print_str_opt("pix_fmt", "unknown"); + print_int("level", dec_ctx->level); + if (dec_ctx->timecode_frame_start >= 0) { + char tcbuf[AV_TIMECODE_STR_SIZE]; + av_timecode_make_mpeg_tc_string(tcbuf, dec_ctx->timecode_frame_start); + print_str("timecode", tcbuf); + } else { + print_str_opt("timecode", "N/A"); + } + break; + + case AVMEDIA_TYPE_AUDIO: + s = av_get_sample_fmt_name(dec_ctx->sample_fmt); + if (s) print_str ("sample_fmt", s); + else print_str_opt("sample_fmt", "unknown"); + print_val("sample_rate", dec_ctx->sample_rate, unit_hertz_str); + print_int("channels", dec_ctx->channels); + print_int("bits_per_sample", av_get_bits_per_sample(dec_ctx->codec_id)); + break; + } + } else { + print_str_opt("codec_type", "unknown"); + } + if (dec_ctx->codec && dec_ctx->codec->priv_class && show_private_data) { + const AVOption *opt = NULL; + while (opt = av_opt_next(dec_ctx->priv_data,opt)) { + uint8_t *str; + if (opt->flags) continue; + if (av_opt_get(dec_ctx->priv_data, opt->name, 0, &str) >= 0) { + print_str(opt->name, str); + av_free(str); + } + } + } + + if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) print_fmt ("id", "0x%x", stream->id); + else print_str_opt("id", "N/A"); + print_q("r_frame_rate", stream->r_frame_rate, '/'); + print_q("avg_frame_rate", stream->avg_frame_rate, '/'); + print_q("time_base", stream->time_base, '/'); + print_ts ("start_pts", stream->start_time); + print_time("start_time", stream->start_time, &stream->time_base); + print_ts ("duration_ts", stream->duration); + print_time("duration", stream->duration, &stream->time_base); + if (dec_ctx->bit_rate > 0) print_val ("bit_rate", dec_ctx->bit_rate, unit_bit_per_second_str); + else print_str_opt("bit_rate", "N/A"); + if (stream->nb_frames) print_fmt ("nb_frames", "%"PRId64, stream->nb_frames); + else print_str_opt("nb_frames", "N/A"); + if (nb_streams_frames[stream_idx]) print_fmt ("nb_read_frames", "%"PRIu64, nb_streams_frames[stream_idx]); + else print_str_opt("nb_read_frames", "N/A"); + if (nb_streams_packets[stream_idx]) print_fmt ("nb_read_packets", "%"PRIu64, nb_streams_packets[stream_idx]); + else print_str_opt("nb_read_packets", "N/A"); + if (do_show_data) + writer_print_data(w, "extradata", dec_ctx->extradata, + dec_ctx->extradata_size); + + /* Print disposition information */ +#define PRINT_DISPOSITION(flagname, name) do { \ + print_int(name, !!(stream->disposition & AV_DISPOSITION_##flagname)); \ + } while (0) + + if (do_show_stream_disposition) { + writer_print_section_header(w, SECTION_ID_STREAM_DISPOSITION); + PRINT_DISPOSITION(DEFAULT, "default"); + PRINT_DISPOSITION(DUB, "dub"); + PRINT_DISPOSITION(ORIGINAL, "original"); + PRINT_DISPOSITION(COMMENT, "comment"); + PRINT_DISPOSITION(LYRICS, "lyrics"); + PRINT_DISPOSITION(KARAOKE, "karaoke"); + PRINT_DISPOSITION(FORCED, "forced"); + PRINT_DISPOSITION(HEARING_IMPAIRED, "hearing_impaired"); + PRINT_DISPOSITION(VISUAL_IMPAIRED, "visual_impaired"); + PRINT_DISPOSITION(CLEAN_EFFECTS, "clean_effects"); + PRINT_DISPOSITION(ATTACHED_PIC, "attached_pic"); + writer_print_section_footer(w); + } + + show_tags(w, stream->metadata, SECTION_ID_STREAM_TAGS); + + writer_print_section_footer(w); + av_bprint_finalize(&pbuf, NULL); + fflush(stdout); +} + +static void show_streams(WriterContext *w, AVFormatContext *fmt_ctx) +{ + int i; + writer_print_section_header(w, SECTION_ID_STREAMS); + for (i = 0; i < fmt_ctx->nb_streams; i++) + if (selected_streams[i]) + show_stream(w, fmt_ctx, i); + writer_print_section_footer(w); +} + +static void show_chapters(WriterContext *w, AVFormatContext *fmt_ctx) +{ + int i; + + writer_print_section_header(w, SECTION_ID_CHAPTERS); + for (i = 0; i < fmt_ctx->nb_chapters; i++) { + AVChapter *chapter = fmt_ctx->chapters[i]; + + writer_print_section_header(w, SECTION_ID_CHAPTER); + print_int("id", chapter->id); + print_q ("time_base", chapter->time_base, '/'); + print_int("start", chapter->start); + print_time("start_time", chapter->start, &chapter->time_base); + print_int("end", chapter->end); + print_time("end_time", chapter->end, &chapter->time_base); + show_tags(w, chapter->metadata, SECTION_ID_CHAPTER_TAGS); + writer_print_section_footer(w); + } + writer_print_section_footer(w); +} + +static void show_format(WriterContext *w, AVFormatContext *fmt_ctx) +{ + char val_str[128]; + int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1; + + writer_print_section_header(w, SECTION_ID_FORMAT); + print_str("filename", fmt_ctx->filename); + print_int("nb_streams", fmt_ctx->nb_streams); + print_str("format_name", fmt_ctx->iformat->name); + if (!do_bitexact) { + if (fmt_ctx->iformat->long_name) print_str ("format_long_name", fmt_ctx->iformat->long_name); + else print_str_opt("format_long_name", "unknown"); + } + print_time("start_time", fmt_ctx->start_time, &AV_TIME_BASE_Q); + print_time("duration", fmt_ctx->duration, &AV_TIME_BASE_Q); + if (size >= 0) print_val ("size", size, unit_byte_str); + else print_str_opt("size", "N/A"); + if (fmt_ctx->bit_rate > 0) print_val ("bit_rate", fmt_ctx->bit_rate, unit_bit_per_second_str); + else print_str_opt("bit_rate", "N/A"); + show_tags(w, fmt_ctx->metadata, SECTION_ID_FORMAT_TAGS); + + writer_print_section_footer(w); + fflush(stdout); +} + +static void show_error(WriterContext *w, int err) +{ + char errbuf[128]; + const char *errbuf_ptr = errbuf; + + if (av_strerror(err, errbuf, sizeof(errbuf)) < 0) + errbuf_ptr = strerror(AVUNERROR(err)); + + writer_print_section_header(w, SECTION_ID_ERROR); + print_int("code", err); + print_str("string", errbuf_ptr); + writer_print_section_footer(w); +} + +static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename) +{ + int err, i, orig_nb_streams; + AVFormatContext *fmt_ctx = NULL; + AVDictionaryEntry *t; + AVDictionary **opts; + + if ((err = avformat_open_input(&fmt_ctx, filename, + iformat, &format_opts)) < 0) { + print_error(filename, err); + return err; + } + if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); + return AVERROR_OPTION_NOT_FOUND; + } + + /* fill the streams in the format context */ + opts = setup_find_stream_info_opts(fmt_ctx, codec_opts); + orig_nb_streams = fmt_ctx->nb_streams; + + if ((err = avformat_find_stream_info(fmt_ctx, opts)) < 0) { + print_error(filename, err); + return err; + } + for (i = 0; i < orig_nb_streams; i++) + av_dict_free(&opts[i]); + av_freep(&opts); + + av_dump_format(fmt_ctx, 0, filename, 0); + + /* bind a decoder to each input stream */ + for (i = 0; i < fmt_ctx->nb_streams; i++) { + AVStream *stream = fmt_ctx->streams[i]; + AVCodec *codec; + + if (stream->codec->codec_id == AV_CODEC_ID_PROBE) { + av_log(NULL, AV_LOG_ERROR, + "Failed to probe codec for input stream %d\n", + stream->index); + } else if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) { + av_log(NULL, AV_LOG_ERROR, + "Unsupported codec with id %d for input stream %d\n", + stream->codec->codec_id, stream->index); + } else { + AVDictionary *opts = filter_codec_opts(codec_opts, stream->codec->codec_id, + fmt_ctx, stream, codec); + if (avcodec_open2(stream->codec, codec, &opts) < 0) { + av_log(NULL, AV_LOG_ERROR, "Error while opening codec for input stream %d\n", + stream->index); + } + if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_ERROR, "Option %s for input stream %d not found\n", + t->key, stream->index); + return AVERROR_OPTION_NOT_FOUND; + } + } + } + + *fmt_ctx_ptr = fmt_ctx; + return 0; +} + +static void close_input_file(AVFormatContext **ctx_ptr) +{ + int i; + AVFormatContext *fmt_ctx = *ctx_ptr; + + /* close decoder for each stream */ + for (i = 0; i < fmt_ctx->nb_streams; i++) + if (fmt_ctx->streams[i]->codec->codec_id != AV_CODEC_ID_NONE) + avcodec_close(fmt_ctx->streams[i]->codec); + + avformat_close_input(ctx_ptr); +} + +static int probe_file(WriterContext *wctx, const char *filename) +{ + AVFormatContext *fmt_ctx; + int ret, i; + int section_id; + + do_read_frames = do_show_frames || do_count_frames; + do_read_packets = do_show_packets || do_count_packets; + + ret = open_input_file(&fmt_ctx, filename); + if (ret < 0) + return ret; + + nb_streams_frames = av_calloc(fmt_ctx->nb_streams, sizeof(*nb_streams_frames)); + nb_streams_packets = av_calloc(fmt_ctx->nb_streams, sizeof(*nb_streams_packets)); + selected_streams = av_calloc(fmt_ctx->nb_streams, sizeof(*selected_streams)); + + for (i = 0; i < fmt_ctx->nb_streams; i++) { + if (stream_specifier) { + ret = avformat_match_stream_specifier(fmt_ctx, + fmt_ctx->streams[i], + stream_specifier); + if (ret < 0) + goto end; + else + selected_streams[i] = ret; + ret = 0; + } else { + selected_streams[i] = 1; + } + } + + if (do_read_frames || do_read_packets) { + if (do_show_frames && do_show_packets && + wctx->writer->flags & WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER) + section_id = SECTION_ID_PACKETS_AND_FRAMES; + else if (do_show_packets && !do_show_frames) + section_id = SECTION_ID_PACKETS; + else // (!do_show_packets && do_show_frames) + section_id = SECTION_ID_FRAMES; + if (do_show_frames || do_show_packets) + writer_print_section_header(wctx, section_id); + read_packets(wctx, fmt_ctx); + if (do_show_frames || do_show_packets) + writer_print_section_footer(wctx); + } + if (do_show_streams) + show_streams(wctx, fmt_ctx); + if (do_show_chapters) + show_chapters(wctx, fmt_ctx); + if (do_show_format) + show_format(wctx, fmt_ctx); + +end: + close_input_file(&fmt_ctx); + av_freep(&nb_streams_frames); + av_freep(&nb_streams_packets); + av_freep(&selected_streams); + + return ret; +} + +static void show_usage(void) +{ + av_log(NULL, AV_LOG_INFO, "Simple multimedia streams analyzer\n"); + av_log(NULL, AV_LOG_INFO, "usage: %s [OPTIONS] [INPUT_FILE]\n", program_name); + av_log(NULL, AV_LOG_INFO, "\n"); +} + +static void ffprobe_show_program_version(WriterContext *w) +{ + AVBPrint pbuf; + av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED); + + writer_print_section_header(w, SECTION_ID_PROGRAM_VERSION); + print_str("version", FFMPEG_VERSION); + print_fmt("copyright", "Copyright (c) %d-%d the FFmpeg developers", + program_birth_year, this_year); + print_str("build_date", __DATE__); + print_str("build_time", __TIME__); + print_str("compiler_ident", CC_IDENT); + print_str("configuration", FFMPEG_CONFIGURATION); + writer_print_section_footer(w); + + av_bprint_finalize(&pbuf, NULL); +} + +#define SHOW_LIB_VERSION(libname, LIBNAME) \ + do { \ + if (CONFIG_##LIBNAME) { \ + unsigned int version = libname##_version(); \ + writer_print_section_header(w, SECTION_ID_LIBRARY_VERSION); \ + print_str("name", "lib" #libname); \ + print_int("major", LIB##LIBNAME##_VERSION_MAJOR); \ + print_int("minor", LIB##LIBNAME##_VERSION_MINOR); \ + print_int("micro", LIB##LIBNAME##_VERSION_MICRO); \ + print_int("version", version); \ + print_str("ident", LIB##LIBNAME##_IDENT); \ + writer_print_section_footer(w); \ + } \ + } while (0) + +static void ffprobe_show_library_versions(WriterContext *w) +{ + writer_print_section_header(w, SECTION_ID_LIBRARY_VERSIONS); + SHOW_LIB_VERSION(avutil, AVUTIL); + SHOW_LIB_VERSION(avcodec, AVCODEC); + SHOW_LIB_VERSION(avformat, AVFORMAT); + SHOW_LIB_VERSION(avdevice, AVDEVICE); + SHOW_LIB_VERSION(avfilter, AVFILTER); + SHOW_LIB_VERSION(swscale, SWSCALE); + SHOW_LIB_VERSION(swresample, SWRESAMPLE); + SHOW_LIB_VERSION(postproc, POSTPROC); + writer_print_section_footer(w); +} + +static int opt_format(void *optctx, const char *opt, const char *arg) +{ + iformat = av_find_input_format(arg); + if (!iformat) { + av_log(NULL, AV_LOG_ERROR, "Unknown input format: %s\n", arg); + return AVERROR(EINVAL); + } + return 0; +} + +static inline void mark_section_show_entries(SectionID section_id, + int show_all_entries, AVDictionary *entries) +{ + struct section *section = §ions[section_id]; + + section->show_all_entries = show_all_entries; + if (show_all_entries) { + SectionID *id; + for (id = section->children_ids; *id != -1; id++) + mark_section_show_entries(*id, show_all_entries, entries); + } else { + av_dict_copy(§ion->entries_to_show, entries, 0); + } +} + +static int match_section(const char *section_name, + int show_all_entries, AVDictionary *entries) +{ + int i, ret = 0; + + for (i = 0; i < FF_ARRAY_ELEMS(sections); i++) { + const struct section *section = §ions[i]; + if (!strcmp(section_name, section->name) || + (section->unique_name && !strcmp(section_name, section->unique_name))) { + av_log(NULL, AV_LOG_DEBUG, + "'%s' matches section with unique name '%s'\n", section_name, + (char *)av_x_if_null(section->unique_name, section->name)); + ret++; + mark_section_show_entries(section->id, show_all_entries, entries); + } + } + return ret; +} + +static int opt_show_entries(void *optctx, const char *opt, const char *arg) +{ + const char *p = arg; + int ret = 0; + + while (*p) { + AVDictionary *entries = NULL; + char *section_name = av_get_token(&p, "=:"); + int show_all_entries = 0; + + if (!section_name) { + av_log(NULL, AV_LOG_ERROR, + "Missing section name for option '%s'\n", opt); + return AVERROR(EINVAL); + } + + if (*p == '=') { + p++; + while (*p && *p != ':') { + char *entry = av_get_token(&p, ",:"); + if (!entry) + break; + av_log(NULL, AV_LOG_VERBOSE, + "Adding '%s' to the entries to show in section '%s'\n", + entry, section_name); + av_dict_set(&entries, entry, "", AV_DICT_DONT_STRDUP_KEY); + if (*p == ',') + p++; + } + } else { + show_all_entries = 1; + } + + ret = match_section(section_name, show_all_entries, entries); + if (ret == 0) { + av_log(NULL, AV_LOG_ERROR, "No match for section '%s'\n", section_name); + ret = AVERROR(EINVAL); + } + av_dict_free(&entries); + av_free(section_name); + + if (ret <= 0) + break; + if (*p) + p++; + } + + return ret; +} + +static int opt_show_format_entry(void *optctx, const char *opt, const char *arg) +{ + char *buf = av_asprintf("format=%s", arg); + int ret; + + av_log(NULL, AV_LOG_WARNING, + "Option '%s' is deprecated, use '-show_entries format=%s' instead\n", + opt, arg); + ret = opt_show_entries(optctx, opt, buf); + av_free(buf); + return ret; +} + +static void opt_input_file(void *optctx, const char *arg) +{ + if (input_filename) { + av_log(NULL, AV_LOG_ERROR, + "Argument '%s' provided as input filename, but '%s' was already specified.\n", + arg, input_filename); + exit_program(1); + } + if (!strcmp(arg, "-")) + arg = "pipe:"; + input_filename = arg; +} + +static int opt_input_file_i(void *optctx, const char *opt, const char *arg) +{ + opt_input_file(optctx, arg); + return 0; +} + +void show_help_default(const char *opt, const char *arg) +{ + av_log_set_callback(log_callback_help); + show_usage(); + show_help_options(options, "Main options:", 0, 0, 0); + printf("\n"); + + show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); +} + +static int opt_pretty(void *optctx, const char *opt, const char *arg) +{ + show_value_unit = 1; + use_value_prefix = 1; + use_byte_value_binary_prefix = 1; + use_value_sexagesimal_format = 1; + return 0; +} + +static void print_section(SectionID id, int level) +{ + const SectionID *pid; + const struct section *section = §ions[id]; + printf("%c%c%c", + section->flags & SECTION_FLAG_IS_WRAPPER ? 'W' : '.', + section->flags & SECTION_FLAG_IS_ARRAY ? 'A' : '.', + section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS ? 'V' : '.'); + printf("%*c %s", level * 4, ' ', section->name); + if (section->unique_name) + printf("/%s", section->unique_name); + printf("\n"); + + for (pid = section->children_ids; *pid != -1; pid++) + print_section(*pid, level+1); +} + +static int opt_sections(void *optctx, const char *opt, const char *arg) +{ + printf("Sections:\n" + "W.. = Section is a wrapper (contains other sections, no local entries)\n" + ".A. = Section contains an array of elements of the same type\n" + "..V = Section may contain a variable number of fields with variable keys\n" + "FLAGS NAME/UNIQUE_NAME\n" + "---\n"); + print_section(SECTION_ID_ROOT, 0); + return 0; +} + +static int opt_show_versions(const char *opt, const char *arg) +{ + mark_section_show_entries(SECTION_ID_PROGRAM_VERSION, 1, NULL); + mark_section_show_entries(SECTION_ID_LIBRARY_VERSION, 1, NULL); + return 0; +} + +#define DEFINE_OPT_SHOW_SECTION(section, target_section_id) \ + static int opt_show_##section(const char *opt, const char *arg) \ + { \ + mark_section_show_entries(SECTION_ID_##target_section_id, 1, NULL); \ + return 0; \ + } + +DEFINE_OPT_SHOW_SECTION(chapters, CHAPTERS); +DEFINE_OPT_SHOW_SECTION(error, ERROR); +DEFINE_OPT_SHOW_SECTION(format, FORMAT); +DEFINE_OPT_SHOW_SECTION(frames, FRAMES); +DEFINE_OPT_SHOW_SECTION(library_versions, LIBRARY_VERSIONS); +DEFINE_OPT_SHOW_SECTION(packets, PACKETS); +DEFINE_OPT_SHOW_SECTION(program_version, PROGRAM_VERSION); +DEFINE_OPT_SHOW_SECTION(streams, STREAMS); + +static const OptionDef real_options[] = { +#include "cmdutils_common_opts.h" + { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "format" }, + { "unit", OPT_BOOL, {&show_value_unit}, "show unit of the displayed values" }, + { "prefix", OPT_BOOL, {&use_value_prefix}, "use SI prefixes for the displayed values" }, + { "byte_binary_prefix", OPT_BOOL, {&use_byte_value_binary_prefix}, + "use binary prefixes for byte units" }, + { "sexagesimal", OPT_BOOL, {&use_value_sexagesimal_format}, + "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" }, + { "pretty", 0, {.func_arg = opt_pretty}, + "prettify the format of displayed values, make it more human readable" }, + { "print_format", OPT_STRING | HAS_ARG, {(void*)&print_format}, + "set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml)", "format" }, + { "of", OPT_STRING | HAS_ARG, {(void*)&print_format}, "alias for -print_format", "format" }, + { "select_streams", OPT_STRING | HAS_ARG, {(void*)&stream_specifier}, "select the specified streams", "stream_specifier" }, + { "sections", OPT_EXIT, {.func_arg = opt_sections}, "print sections structure and section information, and exit" }, + { "show_data", OPT_BOOL, {(void*)&do_show_data}, "show packets data" }, + { "show_error", 0, {(void*)&opt_show_error}, "show probing error" }, + { "show_format", 0, {(void*)&opt_show_format}, "show format/container info" }, + { "show_frames", 0, {(void*)&opt_show_frames}, "show frames info" }, + { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry}, + "show a particular entry from the format/container info", "entry" }, + { "show_entries", HAS_ARG, {.func_arg = opt_show_entries}, + "show a set of specified entries", "entry_list" }, + { "show_packets", 0, {(void*)&opt_show_packets}, "show packets info" }, + { "show_streams", 0, {(void*)&opt_show_streams}, "show streams info" }, + { "show_chapters", 0, {(void*)&opt_show_chapters}, "show chapters info" }, + { "count_frames", OPT_BOOL, {(void*)&do_count_frames}, "count the number of frames per stream" }, + { "count_packets", OPT_BOOL, {(void*)&do_count_packets}, "count the number of packets per stream" }, + { "show_program_version", 0, {(void*)&opt_show_program_version}, "show ffprobe version" }, + { "show_library_versions", 0, {(void*)&opt_show_library_versions}, "show library versions" }, + { "show_versions", 0, {(void*)&opt_show_versions}, "show program and library versions" }, + { "show_private_data", OPT_BOOL, {(void*)&show_private_data}, "show private data" }, + { "private", OPT_BOOL, {(void*)&show_private_data}, "same as show_private_data" }, + { "bitexact", OPT_BOOL, {&do_bitexact}, "force bitexact output" }, + { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, "generic catch all option", "" }, + { "i", HAS_ARG, {.func_arg = opt_input_file_i}, "read specified file", "input_file"}, + { NULL, }, +}; + +static inline int check_section_show_entries(int section_id) +{ + int *id; + struct section *section = §ions[section_id]; + if (sections[section_id].show_all_entries || sections[section_id].entries_to_show) + return 1; + for (id = section->children_ids; *id != -1; id++) + if (check_section_show_entries(*id)) + return 1; + return 0; +} + +#define SET_DO_SHOW(id, varname) do { \ + if (check_section_show_entries(SECTION_ID_##id)) \ + do_show_##varname = 1; \ + } while (0) + +int main(int argc, char **argv) +{ + const Writer *w; + WriterContext *wctx; + char *buf; + char *w_name = NULL, *w_args = NULL; + int ret, i; + + av_log_set_flags(AV_LOG_SKIP_REPEATED); + register_exit(ffprobe_cleanup); + + options = real_options; + parse_loglevel(argc, argv, options); + av_register_all(); + avformat_network_init(); + init_opts(); +#if CONFIG_AVDEVICE + avdevice_register_all(); +#endif + + show_banner(argc, argv, options); + parse_options(NULL, argc, argv, options, opt_input_file); + + /* mark things to show, based on -show_entries */ + SET_DO_SHOW(CHAPTERS, chapters); + SET_DO_SHOW(ERROR, error); + SET_DO_SHOW(FORMAT, format); + SET_DO_SHOW(FRAMES, frames); + SET_DO_SHOW(LIBRARY_VERSIONS, library_versions); + SET_DO_SHOW(PACKETS, packets); + SET_DO_SHOW(PROGRAM_VERSION, program_version); + SET_DO_SHOW(STREAMS, streams); + SET_DO_SHOW(STREAM_DISPOSITION, stream_disposition); + + if (do_bitexact && (do_show_program_version || do_show_library_versions)) { + av_log(NULL, AV_LOG_ERROR, + "-bitexact and -show_program_version or -show_library_versions " + "options are incompatible\n"); + ret = AVERROR(EINVAL); + goto end; + } + + writer_register_all(); + + if (!print_format) + print_format = av_strdup("default"); + if (!print_format) { + ret = AVERROR(ENOMEM); + goto end; + } + w_name = av_strtok(print_format, "=", &buf); + w_args = buf; + + w = writer_get_by_name(w_name); + if (!w) { + av_log(NULL, AV_LOG_ERROR, "Unknown output format with name '%s'\n", w_name); + ret = AVERROR(EINVAL); + goto end; + } + + if ((ret = writer_open(&wctx, w, w_args, + sections, FF_ARRAY_ELEMS(sections))) >= 0) { + writer_print_section_header(wctx, SECTION_ID_ROOT); + + if (do_show_program_version) + ffprobe_show_program_version(wctx); + if (do_show_library_versions) + ffprobe_show_library_versions(wctx); + + if (!input_filename && + ((do_show_format || do_show_streams || do_show_chapters || do_show_packets || do_show_error) || + (!do_show_program_version && !do_show_library_versions))) { + show_usage(); + av_log(NULL, AV_LOG_ERROR, "You have to specify one input file.\n"); + av_log(NULL, AV_LOG_ERROR, "Use -h to get full help or, even better, run 'man %s'.\n", program_name); + ret = AVERROR(EINVAL); + } else if (input_filename) { + ret = probe_file(wctx, input_filename); + if (ret < 0 && do_show_error) + show_error(wctx, ret); + } + + writer_print_section_footer(wctx); + writer_close(&wctx); + } + +end: + av_freep(&print_format); + + uninit_opts(); + for (i = 0; i < FF_ARRAY_ELEMS(sections); i++) + av_dict_free(&(sections[i].entries_to_show)); + + avformat_network_deinit(); + + return ret < 0; +} |