23 #define _DEFAULT_SOURCE
45 #define GLOB_NOMAGIC 0
86 while (p = strchr(p,
'%')) {
91 if (span = strspn(p,
"*?[]{}"))
111 const char *path,
int start_index,
int start_index_range)
114 int range, last_index, range1, first_index;
117 for (first_index = start_index; first_index < start_index + start_index_range; first_index++) {
128 if (first_index == start_index + start_index_range)
132 last_index = first_index;
141 last_index + range1) < 0)
147 if (range >= (1 << 30))
155 *pfirst_index = first_index;
156 *plast_index = last_index;
185 int first_index = 1, last_index = 1;
196 if (
s->pixel_format &&
215 if (
s->ts_from_file == 2) {
216 #if !HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
217 av_log(
s1,
AV_LOG_ERROR,
"POSIX.1-2008 not supported, nanosecond file timestamps unavailable\n");
221 }
else if (
s->ts_from_file)
228 if (
s->width &&
s->height) {
245 char *p =
s->path, *q, *dup;
250 "use pattern_type 'glob' instead\n");
255 if ((p -
s->path) >= (
sizeof(
s->path) - 2))
257 if (*q ==
'%' && strspn(q + 1,
"%*?[]{}"))
259 else if (strspn(q,
"\\*?[]{}"))
266 gerr = glob(
s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC,
NULL, &
s->globstate);
271 last_index =
s->globstate.gl_pathc - 1;
277 s->start_number,
s->start_number_range) < 0) {
279 "Could find no file with path '%s' and index in the range %d-%d\n",
280 s->path,
s->start_number,
s->start_number +
s->start_number_range - 1);
283 }
else if (
s->pattern_type ==
PT_GLOB) {
286 gerr = glob(
s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC,
NULL, &
s->globstate);
291 last_index =
s->globstate.gl_pathc - 1;
295 "Pattern type 'glob' was selected but globbing "
296 "is not supported by this libavformat build\n");
301 "Unknown value '%d' for pattern_type option\n",
s->pattern_type);
304 s->img_first = first_index;
305 s->img_last = last_index;
306 s->img_number = first_index;
308 if (!
s->ts_from_file) {
310 st->
duration = last_index - first_index + 1;
314 if (
s1->video_codec_id) {
317 }
else if (
s1->audio_codec_id) {
320 }
else if (
s1->iformat->raw_codec_id) {
324 const char *
str = strrchr(
s->path,
'.');
328 int probe_buffer_size = 2048;
331 void *fmt_iter =
NULL;
337 probe_buffer_size =
avio_read(
s1->pb, probe_buffer, probe_buffer_size);
338 if (probe_buffer_size < 0) {
340 return probe_buffer_size;
344 pd.
buf = probe_buffer;
385 char *packed_metadata =
NULL;
389 av_dict_set(&d,
"lavf.image2dec.source_path", filename, 0);
394 if (!packed_metadata)
397 packed_metadata, metadata_len);
408 char filename_bytes[1024];
409 char *filename = filename_bytes;
411 int size[3] = { 0 }, ret[3] = { 0 };
417 if (
s->loop &&
s->img_number >
s->img_last) {
418 s->img_number =
s->img_first;
420 if (
s->img_number >
s->img_last)
423 av_strlcpy(filename_bytes,
s->path,
sizeof(filename_bytes));
424 }
else if (
s->use_glob) {
426 filename =
s->globstate.gl_pathv[
s->img_number];
431 s->img_number) < 0 &&
s->img_number > 1)
434 for (
i = 0;
i < 3;
i++) {
436 !strcmp(filename_bytes,
s->path) &&
449 if (!
s->split_planes)
451 filename[strlen(filename) - 1] =
'U' +
i;
483 if (
s->frame_size > 0) {
484 size[0] =
s->frame_size;
485 }
else if (!
s1->streams[0]->parser) {
498 if (
s->ts_from_file) {
499 struct stat img_stat;
500 if (stat(filename, &img_stat)) {
504 pkt->
pts = (int64_t)img_stat.st_mtime;
506 if (
s->ts_from_file == 2)
507 pkt->
pts = 1000000000*
pkt->
pts + img_stat.st_mtim.tv_nsec;
510 }
else if (!
s->is_pipe) {
522 if (!
s->is_pipe &&
s->export_path_metadata == 1) {
529 for (
i = 0;
i < 3;
i++) {
538 if (!
s->is_pipe &&
f[
i] !=
s1->pb)
545 if (ret[0] <= 0 || ret[1] < 0 || ret[2] < 0) {
548 }
else if (ret[1] < 0) {
550 }
else if (ret[2] < 0) {
565 for (
i = 0;
i < 3;
i++) {
578 globfree(&
s->globstate);
589 if (
s1->ts_from_file) {
597 if (timestamp < 0 || !s1->
loop && timestamp >
s1->img_last -
s1->img_first)
599 s1->img_number = timestamp%(
s1->img_last -
s1->img_first + 1) +
s1->img_first;
604 #define OFFSET(x) offsetof(VideoDemuxData, x)
605 #define DEC AV_OPT_FLAG_DECODING_PARAM
606 #define COMMON_OPTIONS \
607 { "framerate", "set the video framerate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT_MAX, DEC }, \
608 { "pixel_format", "set video pixel format", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, \
609 { "video_size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, DEC }, \
610 { "loop", "force loop over input file sequence", OFFSET(loop), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, DEC }, \
613 #if CONFIG_IMAGE2_DEMUXER
620 {
"start_number",
"set first number in the sequence",
OFFSET(start_number),
AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX,
DEC },
621 {
"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 },
622 {
"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" },
626 {
"export_path_metadata",
"enable metadata containing input path information",
OFFSET(export_path_metadata),
AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1,
DEC }, \
630 static const AVClass img2_class = {
646 .priv_class = &img2_class,
655 #if CONFIG_IMAGE2PIPE_DEMUXER
656 static const AVClass img2pipe_class = {
663 .
name =
"image2pipe",
668 .priv_class = &img2pipe_class,
681 if (ihsize < 12 || ihsize > 255)
705 if (
AV_RB64(
b) == 0x444453207c000000
722 if (
w <= 0 ||
h <= 0)
743 if (
AV_RB64(
b) == 0x0000000c6a502020 ||
847 while (++b < p->buf + 128)
859 && (
AV_RB64(
b + 520) & 0xFFFFFFFFFFFF) == 0x001102ff0c00
863 if ( (
AV_RB64(
b + 8) & 0xFFFFFFFFFFFF) == 0x001102ff0c00
883 if (
AV_RB64(
b) == 0x89504e470d0a1a0a)
900 if ((
b[4] == 0) && (
b[5] == 1)) {
910 if ((color_mode <= 9) && (color_mode != 5) && (color_mode != 6))
922 (
b[3] & ~3) == 0 &&
b[3] &&
942 if (memcmp(p->
buf,
"<?xml", 5))
951 if (!memcmp(
b,
"<svg", 4))
981 return b[0] ==
'P' &&
b[1] == magic +
'0';
990 if (
b[2] ==
'\n' && (
b[3] ==
'#' || (
b[3] >=
'0' &&
b[3] <=
'9')))
1020 if (!memcmp(
b,
"PG ML ", 6))
1037 if (!memcmp(p->
buf,
"/* XBM X10 format */", 20))
1040 if (!memcmp(p->
buf,
"#define", 7))
1049 if (
AV_RB64(
b) == 0x2f2a2058504d202a && *(
b+8) ==
'/')
1057 unsigned width, bpp, bpad, lsize;
1099 if (!memcmp(p->
buf,
"PCD_OPA", 7))
1102 if (p->
buf_size < 0x807 || memcmp(p->
buf + 0x800,
"PCD_IPI", 7))
1108 #define IMAGEAUTO_DEMUXER(imgname, codecid)\
1109 static const AVClass imgname ## _class = {\
1110 .class_name = AV_STRINGIFY(imgname) " demuxer",\
1111 .item_name = av_default_item_name,\
1112 .option = ff_img2pipe_options,\
1113 .version = LIBAVUTIL_VERSION_INT,\
1115 AVInputFormat ff_image_ ## imgname ## _pipe_demuxer = {\
1116 .name = AV_STRINGIFY(imgname) "_pipe",\
1117 .long_name = NULL_IF_CONFIG_SMALL("piped " AV_STRINGIFY(imgname) " sequence"),\
1118 .priv_data_size = sizeof(VideoDemuxData),\
1119 .read_probe = imgname ## _probe,\
1120 .read_header = ff_img_read_header,\
1121 .read_packet = ff_img_read_packet,\
1122 .priv_class = & imgname ## _class,\
1123 .flags = AVFMT_GENERIC_INDEX, \
1124 .raw_codec_id = codecid,\
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_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.