23 #define _DEFAULT_SOURCE
46 #define GLOB_NOMAGIC 0
87 while (p = strchr(p,
'%')) {
92 if (span = strspn(p,
"*?[]{}"))
112 const char *path,
int start_index,
int start_index_range)
115 int range, last_index, range1, first_index;
118 for (first_index = start_index; first_index < start_index + start_index_range; first_index++) {
129 if (first_index == start_index + start_index_range)
133 last_index = first_index;
142 last_index + range1) < 0)
148 if (range >= (1 << 30))
156 *pfirst_index = first_index;
157 *plast_index = last_index;
186 int first_index = 1, last_index = 1;
197 if (
s->pixel_format &&
216 if (
s->ts_from_file == 2) {
217 #if !HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
218 av_log(
s1,
AV_LOG_ERROR,
"POSIX.1-2008 not supported, nanosecond file timestamps unavailable\n");
222 }
else if (
s->ts_from_file)
229 if (
s->width &&
s->height) {
246 char *p =
s->path, *q, *dup;
251 "use pattern_type 'glob' instead\n");
256 if ((p -
s->path) >= (
sizeof(
s->path) - 2))
258 if (*q ==
'%' && strspn(q + 1,
"%*?[]{}"))
260 else if (strspn(q,
"\\*?[]{}"))
267 gerr = glob(
s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC,
NULL, &
s->globstate);
272 last_index =
s->globstate.gl_pathc - 1;
278 s->start_number,
s->start_number_range) < 0) {
280 "Could find no file with path '%s' and index in the range %d-%d\n",
281 s->path,
s->start_number,
s->start_number +
s->start_number_range - 1);
284 }
else if (
s->pattern_type ==
PT_GLOB) {
287 gerr = glob(
s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC,
NULL, &
s->globstate);
292 last_index =
s->globstate.gl_pathc - 1;
296 "Pattern type 'glob' was selected but globbing "
297 "is not supported by this libavformat build\n");
302 "Unknown value '%d' for pattern_type option\n",
s->pattern_type);
305 s->img_first = first_index;
306 s->img_last = last_index;
307 s->img_number = first_index;
309 if (!
s->ts_from_file) {
311 st->
duration = last_index - first_index + 1;
315 if (
s1->video_codec_id) {
318 }
else if (
s1->audio_codec_id) {
321 }
else if (
s1->iformat->raw_codec_id) {
325 const char *
str = strrchr(
s->path,
'.');
329 int probe_buffer_size = 2048;
332 void *fmt_iter =
NULL;
338 probe_buffer_size =
avio_read(
s1->pb, probe_buffer, probe_buffer_size);
339 if (probe_buffer_size < 0) {
341 return probe_buffer_size;
345 pd.
buf = probe_buffer;
386 char *packed_metadata =
NULL;
390 av_dict_set(&d,
"lavf.image2dec.source_path", filename, 0);
395 if (!packed_metadata)
398 packed_metadata, metadata_len);
409 char filename_bytes[1024];
410 char *filename = filename_bytes;
412 int size[3] = { 0 }, ret[3] = { 0 };
418 if (
s->loop &&
s->img_number >
s->img_last) {
419 s->img_number =
s->img_first;
421 if (
s->img_number >
s->img_last)
424 av_strlcpy(filename_bytes,
s->path,
sizeof(filename_bytes));
425 }
else if (
s->use_glob) {
427 filename =
s->globstate.gl_pathv[
s->img_number];
432 s->img_number) < 0 &&
s->img_number > 1)
435 for (
i = 0;
i < 3;
i++) {
437 !strcmp(filename_bytes,
s->path) &&
450 if (!
s->split_planes)
452 filename[strlen(filename) - 1] =
'U' +
i;
484 if (
s->frame_size > 0) {
485 size[0] =
s->frame_size;
486 }
else if (!
s1->streams[0]->parser) {
499 if (
s->ts_from_file) {
500 struct stat img_stat;
502 if (stat(filename, &img_stat)) {
508 if (
s->ts_from_file == 2)
509 pkt->
pts = 1000000000*
pkt->
pts + img_stat.st_mtim.tv_nsec;
512 }
else if (!
s->is_pipe) {
524 if (!
s->is_pipe &&
s->export_path_metadata == 1) {
531 for (
i = 0;
i < 3;
i++) {
540 if (!
s->is_pipe &&
f[
i] !=
s1->pb)
547 if (ret[0] <= 0 || ret[1] < 0 || ret[2] < 0) {
550 }
else if (ret[1] < 0) {
552 }
else if (ret[2] < 0) {
568 for (
i = 0;
i < 3;
i++) {
581 globfree(&
s->globstate);
592 if (
s1->ts_from_file) {
600 if (timestamp < 0 || !s1->
loop && timestamp >
s1->img_last -
s1->img_first)
602 s1->img_number = timestamp%(
s1->img_last -
s1->img_first + 1) +
s1->img_first;
607 #define OFFSET(x) offsetof(VideoDemuxData, x)
608 #define DEC AV_OPT_FLAG_DECODING_PARAM
609 #define COMMON_OPTIONS \
610 { "framerate", "set the video framerate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT_MAX, DEC }, \
611 { "pixel_format", "set video pixel format", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, \
612 { "video_size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, DEC }, \
613 { "loop", "force loop over input file sequence", OFFSET(loop), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, DEC }, \
616 #if CONFIG_IMAGE2_DEMUXER
623 {
"start_number",
"set first number in the sequence",
OFFSET(start_number),
AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX,
DEC },
624 {
"start_number_range",
"set range for looking at the first sequence number",
OFFSET(start_number_range),
AV_OPT_TYPE_INT, {.i64 = 5}, 1, INT_MAX,
DEC },
625 {
"ts_from_file",
"set frame timestamp from file's one",
OFFSET(ts_from_file),
AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2,
DEC,
"ts_type" },
629 {
"export_path_metadata",
"enable metadata containing input path information",
OFFSET(export_path_metadata),
AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1,
DEC }, \
633 static const AVClass img2_class = {
649 .priv_class = &img2_class,
658 #if CONFIG_IMAGE2PIPE_DEMUXER
659 static const AVClass img2pipe_class = {
666 .
name =
"image2pipe",
671 .priv_class = &img2pipe_class,
684 if (ihsize < 12 || ihsize > 255)
708 if (
AV_RB64(
b) == 0x444453207c000000
725 if (
w <= 0 ||
h <= 0)
746 if (
AV_RB64(
b) == 0x0000000c6a502020 ||
850 while (++b < p->buf + 128)
862 && (
AV_RB64(
b + 520) & 0xFFFFFFFFFFFF) == 0x001102ff0c00
866 if ( (
AV_RB64(
b + 8) & 0xFFFFFFFFFFFF) == 0x001102ff0c00
886 if (
AV_RB64(
b) == 0x89504e470d0a1a0a)
903 if ((
b[4] == 0) && (
b[5] == 1)) {
913 if ((color_mode <= 9) && (color_mode != 5) && (color_mode != 6))
925 (
b[3] & ~3) == 0 &&
b[3] &&
945 if (memcmp(p->
buf,
"<?xml", 5))
954 if (!memcmp(
b,
"<svg", 4))
984 return b[0] ==
'P' &&
b[1] == magic +
'0';
993 if (
b[2] ==
'\n' && (
b[3] ==
'#' || (
b[3] >=
'0' &&
b[3] <=
'9')))
1023 if (!memcmp(
b,
"PG ML ", 6))
1040 if (!memcmp(p->
buf,
"/* XBM X10 format */", 20))
1043 if (!memcmp(p->
buf,
"#define", 7))
1052 if (
AV_RB64(
b) == 0x2f2a2058504d202a && *(
b+8) ==
'/')
1060 unsigned width, bpp, bpad, lsize;
1102 if (!memcmp(p->
buf,
"PCD_OPA", 7))
1105 if (p->
buf_size < 0x807 || memcmp(p->
buf + 0x800,
"PCD_IPI", 7))
1111 #define IMAGEAUTO_DEMUXER(imgname, codecid)\
1112 static const AVClass imgname ## _class = {\
1113 .class_name = AV_STRINGIFY(imgname) " demuxer",\
1114 .item_name = av_default_item_name,\
1115 .option = ff_img2pipe_options,\
1116 .version = LIBAVUTIL_VERSION_INT,\
1118 AVInputFormat ff_image_ ## imgname ## _pipe_demuxer = {\
1119 .name = AV_STRINGIFY(imgname) "_pipe",\
1120 .long_name = NULL_IF_CONFIG_SMALL("piped " AV_STRINGIFY(imgname) " sequence"),\
1121 .priv_data_size = sizeof(VideoDemuxData),\
1122 .read_probe = imgname ## _probe,\
1123 .read_header = ff_img_read_header,\
1124 .read_packet = ff_img_read_packet,\
1125 .priv_class = & imgname ## _class,\
1126 .flags = AVFMT_GENERIC_INDEX, \
1127 .raw_codec_id = codecid,\
simple assert() macros that are a bit more flexible than ISO C assert().
#define av_assert0(cond)
assert() equivalent, that is always enabled.
int avio_check(const char *url, int flags)
Return AVIO_FLAG_* access flags corresponding to the access permissions of the resource in url,...
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
#define AVIO_FLAG_READ
read-only
int64_t avio_size(AVIOContext *s)
Get the filesize.
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
int ffio_rewind_with_probe_data(AVIOContext *s, unsigned char **buf, int buf_size)
Rewind the AVIOContext using the specified buffer containing the first buf_size bytes of the file.
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
uint8_t * av_packet_pack_dictionary(AVDictionary *dict, int *size)
#define flags(name, subs,...)
#define MKTAG(a, b, c, d)
#define HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
static enum AVPixelFormat pix_fmt
static int read_header(FFV1Context *f)
static const uint8_t gif89a_sig[6]
static const uint8_t gif87a_sig[6]
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
FF_ENABLE_DEPRECATION_WARNINGS int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type, uint8_t *data, size_t size)
Wrap an existing array as a packet side data.
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
@ AV_PKT_DATA_STRINGS_METADATA
A list of zero terminated key/value strings.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
const AVInputFormat * av_demuxer_iterate(void **opaque)
Iterate over all registered demuxers.
ff_const59 AVInputFormat * av_probe_input_format3(ff_const59 AVProbeData *pd, int is_opened, int *score_ret)
Guess the file format.
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags)
Add an index entry into a sorted list.
int av_match_ext(const char *filename, const char *extensions)
Return a positive value if the given filename has one of the given extensions, 0 otherwise.
int av_get_frame_filename(char *buf, int buf_size, const char *path, int number)
int av_filename_number_test(const char *filename)
Check whether filename actually is a numbered sequence generator.
int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags)
Get the index for a specific timestamp.
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
#define AVERROR_EOF
End of file.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
const char * av_default_item_name(void *ptr)
Return the context name.
void * av_realloc(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory.
char * av_strdup(const char *s)
Duplicate a string.
const char * av_basename(const char *path)
Thread safe basename.
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
#define LIBAVUTIL_VERSION_INT
enum AVCodecID ff_guess_image2_codec(const char *filename)
const AVOption ff_img_options[]
static int is_glob(const char *path)
#define IMAGEAUTO_DEMUXER(imgname, codecid)
static int pbm_probe(const AVProbeData *p)
static int jpegls_probe(const AVProbeData *p)
static int photocd_probe(const AVProbeData *p)
static int xwd_probe(const AVProbeData *p)
static int xbm_probe(const AVProbeData *p)
static int sgi_probe(const AVProbeData *p)
static int img_read_close(struct AVFormatContext *s1)
static int cri_probe(const AVProbeData *p)
static int exr_probe(const AVProbeData *p)
static int tiff_probe(const AVProbeData *p)
static int ppm_probe(const AVProbeData *p)
const AVOption ff_img2pipe_options[]
static int pnm_probe(const AVProbeData *p)
static int img_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
static int xpm_probe(const AVProbeData *p)
static int j2k_probe(const AVProbeData *p)
static int pgx_probe(const AVProbeData *p)
static int psd_probe(const AVProbeData *p)
static int sunrast_probe(const AVProbeData *p)
static int dpx_probe(const AVProbeData *p)
static int pgm_probe(const AVProbeData *p)
static int find_image_range(AVIOContext *pb, int *pfirst_index, int *plast_index, const char *path, int start_index, int start_index_range)
Get index range of image files matched by path.
static const int sizes[][2]
static int pcx_probe(const AVProbeData *p)
static int qdraw_probe(const AVProbeData *p)
static int infer_size(int *width_ptr, int *height_ptr, int size)
static int add_filename_as_pkt_side_data(char *filename, AVPacket *pkt)
Add this frame's source path and basename to packet's sidedata as a dictionary, so it can be used by ...
static int bmp_probe(const AVProbeData *p)
static int pgmyuv_probe(const AVProbeData *p)
static int dds_probe(const AVProbeData *p)
static int svg_probe(const AVProbeData *p)
int ff_img_read_header(AVFormatContext *s1)
static int pnm_magic_check(const AVProbeData *p, int magic)
static int gif_probe(const AVProbeData *p)
static int webp_probe(const AVProbeData *p)
static int pam_probe(const AVProbeData *p)
int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt)
static int pgmx_probe(const AVProbeData *p)
static int pictor_probe(const AVProbeData *p)
static int img_read_probe(const AVProbeData *p)
static int jpeg_probe(const AVProbeData *p)
static int png_probe(const AVProbeData *p)
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static av_cold int read_close(AVFormatContext *ctx)
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
MJPEG encoder and decoder.
enum AVPixelFormat av_get_pix_fmt(const char *name)
Return the pixel format corresponding to name.
AVPixelFormat
Pixel format.
static const uint8_t header[24]
#define FF_ARRAY_ELEMS(a)
Describe the class of an AVClass context structure.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
This struct describes the properties of an encoded stream.
enum AVMediaType codec_type
General type of the encoded data.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
This structure stores compressed data.
int flags
A combination of AV_PKT_FLAG values.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
int64_t pos
byte position in stream, -1 if unknown
This structure contains the data a format has to probe a file.
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
int64_t duration
Decoding: duration of the stream, in stream time base.
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base.
AVRational avg_frame_rate
Average framerate.
AVIndexEntry * index_entries
Only used if the format does not support seeking natively.
enum AVStreamParseType need_parsing
static av_always_inline int ff_subtitles_next_line(const char *ptr)
Get the number of characters to increment to jump to the next line, or to the end of the string.