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-rw-r--r--libavformat/img2dec.c666
1 files changed, 595 insertions, 71 deletions
diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
index fc6da1b7fe..0cbcf4a9dc 100644
--- a/libavformat/img2dec.c
+++ b/libavformat/img2dec.c
@@ -3,45 +3,48 @@
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
* Copyright (c) 2004 Michael Niedermayer
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#define _DEFAULT_SOURCE
+#define _BSD_SOURCE
+#include <sys/stat.h>
#include "libavutil/avstring.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/parseutils.h"
+#include "libavutil/intreadwrite.h"
#include "avformat.h"
+#include "avio_internal.h"
#include "internal.h"
+#include "img2.h"
-typedef struct VideoDemuxData {
- const AVClass *class; /**< Class for private options. */
- int img_first;
- int img_last;
- int img_number;
- int img_count;
- int is_pipe;
- char path[1024];
- char *pixel_format; /**< Set by a private option. */
- char *video_size; /**< Set by a private option. */
- char *framerate; /**< Set by a private option. */
- int loop;
- int start_number;
-} VideoDemuxData;
+#if HAVE_GLOB
+/* Locally define as 0 (bitwise-OR no-op) any missing glob options that
+ are non-posix glibc/bsd extensions. */
+#ifndef GLOB_NOMAGIC
+#define GLOB_NOMAGIC 0
+#endif
+#ifndef GLOB_BRACE
+#define GLOB_BRACE 0
+#endif
+
+#endif /* HAVE_GLOB */
static const int sizes[][2] = {
{ 640, 480 },
@@ -70,15 +73,44 @@ static int infer_size(int *width_ptr, int *height_ptr, int size)
return -1;
}
-/* return -1 if no image found */
+static int is_glob(const char *path)
+{
+#if HAVE_GLOB
+ size_t span = 0;
+ const char *p = path;
+
+ while (p = strchr(p, '%')) {
+ if (*(++p) == '%') {
+ ++p;
+ continue;
+ }
+ if (span = strspn(p, "*?[]{}"))
+ break;
+ }
+ /* Did we hit a glob char or get to the end? */
+ return span != 0;
+#else
+ return 0;
+#endif
+}
+
+/**
+ * Get index range of image files matched by path.
+ *
+ * @param pfirst_index pointer to index updated with the first number in the range
+ * @param plast_index pointer to index updated with the last number in the range
+ * @param path path which has to be matched by the image files in the range
+ * @param start_index minimum accepted value for the first index in the range
+ * @return -1 if no image file could be found
+ */
static int find_image_range(int *pfirst_index, int *plast_index,
- const char *path, int max_start)
+ const char *path, int start_index, int start_index_range)
{
char buf[1024];
int range, last_index, range1, first_index;
/* find the first image */
- for (first_index = 0; first_index < max_start; first_index++) {
+ for (first_index = start_index; first_index < start_index + start_index_range; first_index++) {
if (av_get_frame_filename(buf, sizeof(buf), path, first_index) < 0) {
*pfirst_index =
*plast_index = 1;
@@ -89,7 +121,7 @@ static int find_image_range(int *pfirst_index, int *plast_index,
if (avio_check(buf, AVIO_FLAG_READ) > 0)
break;
}
- if (first_index == 5)
+ if (first_index == start_index + start_index_range)
goto fail;
/* find the last image */
@@ -129,20 +161,26 @@ static int img_read_probe(AVProbeData *p)
if (p->filename && ff_guess_image2_codec(p->filename)) {
if (av_filename_number_test(p->filename))
return AVPROBE_SCORE_MAX;
+ else if (is_glob(p->filename))
+ return AVPROBE_SCORE_MAX;
+ else if (p->filename[strcspn(p->filename, "*?{")]) // probably PT_GLOB
+ return AVPROBE_SCORE_EXTENSION + 2; // score chosen to be a tad above the image pipes
+ else if (p->buf_size == 0)
+ return 0;
+ else if (av_match_ext(p->filename, "raw") || av_match_ext(p->filename, "gif"))
+ return 5;
else
return AVPROBE_SCORE_EXTENSION;
}
return 0;
}
-static int img_read_header(AVFormatContext *s1)
+int ff_img_read_header(AVFormatContext *s1)
{
VideoDemuxData *s = s1->priv_data;
- int first_index, last_index, ret = 0;
- int width = 0, height = 0;
+ int first_index = 1, last_index = 1;
AVStream *st;
enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
- AVRational framerate;
s1->ctx_flags |= AVFMTCTX_NOHEADER;
@@ -157,17 +195,6 @@ static int img_read_header(AVFormatContext *s1)
s->pixel_format);
return AVERROR(EINVAL);
}
- if (s->video_size &&
- (ret = av_parse_video_size(&width, &height, s->video_size)) < 0) {
- av_log(s, AV_LOG_ERROR,
- "Could not parse video size: %s.\n", s->video_size);
- return ret;
- }
- if ((ret = av_parse_video_rate(&framerate, s->framerate)) < 0) {
- av_log(s, AV_LOG_ERROR,
- "Could not parse framerate: %s.\n", s->framerate);
- return ret;
- }
av_strlcpy(s->path, s1->filename, sizeof(s->path));
s->img_number = 0;
@@ -181,23 +208,94 @@ static int img_read_header(AVFormatContext *s1)
st->need_parsing = AVSTREAM_PARSE_FULL;
}
- avpriv_set_pts_info(st, 60, framerate.den, framerate.num);
+ if (s->ts_from_file == 2) {
+#if !HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
+ av_log(s1, AV_LOG_ERROR, "POSIX.1-2008 not supported, nanosecond file timestamps unavailable\n");
+ return AVERROR(ENOSYS);
+#endif
+ avpriv_set_pts_info(st, 64, 1, 1000000000);
+ } else if (s->ts_from_file)
+ avpriv_set_pts_info(st, 64, 1, 1);
+ else
+ avpriv_set_pts_info(st, 64, s->framerate.den, s->framerate.num);
- if (width && height) {
- st->codec->width = width;
- st->codec->height = height;
+ if (s->width && s->height) {
+ st->codec->width = s->width;
+ st->codec->height = s->height;
}
if (!s->is_pipe) {
- if (find_image_range(&first_index, &last_index, s->path,
- FFMAX(s->start_number, 5)) < 0)
- return AVERROR(ENOENT);
+ if (s->pattern_type == PT_GLOB_SEQUENCE) {
+ s->use_glob = is_glob(s->path);
+ if (s->use_glob) {
+#if HAVE_GLOB
+ char *p = s->path, *q, *dup;
+ int gerr;
+#endif
+
+ av_log(s1, AV_LOG_WARNING, "Pattern type 'glob_sequence' is deprecated: "
+ "use pattern_type 'glob' instead\n");
+#if HAVE_GLOB
+ dup = q = av_strdup(p);
+ while (*q) {
+ /* Do we have room for the next char and a \ insertion? */
+ if ((p - s->path) >= (sizeof(s->path) - 2))
+ break;
+ if (*q == '%' && strspn(q + 1, "%*?[]{}"))
+ ++q;
+ else if (strspn(q, "\\*?[]{}"))
+ *p++ = '\\';
+ *p++ = *q++;
+ }
+ *p = 0;
+ av_free(dup);
+
+ gerr = glob(s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC, NULL, &s->globstate);
+ if (gerr != 0) {
+ return AVERROR(ENOENT);
+ }
+ first_index = 0;
+ last_index = s->globstate.gl_pathc - 1;
+#endif
+ }
+ }
+ if ((s->pattern_type == PT_GLOB_SEQUENCE && !s->use_glob) || s->pattern_type == PT_SEQUENCE) {
+ if (find_image_range(&first_index, &last_index, s->path,
+ s->start_number, s->start_number_range) < 0) {
+ av_log(s1, AV_LOG_ERROR,
+ "Could find no file with path '%s' and index in the range %d-%d\n",
+ s->path, s->start_number, s->start_number + s->start_number_range - 1);
+ return AVERROR(ENOENT);
+ }
+ } else if (s->pattern_type == PT_GLOB) {
+#if HAVE_GLOB
+ int gerr;
+ gerr = glob(s->path, GLOB_NOCHECK|GLOB_BRACE|GLOB_NOMAGIC, NULL, &s->globstate);
+ if (gerr != 0) {
+ return AVERROR(ENOENT);
+ }
+ first_index = 0;
+ last_index = s->globstate.gl_pathc - 1;
+ s->use_glob = 1;
+#else
+ av_log(s1, AV_LOG_ERROR,
+ "Pattern type 'glob' was selected but globbing "
+ "is not supported by this libavformat build\n");
+ return AVERROR(ENOSYS);
+#endif
+ } else if (s->pattern_type != PT_GLOB_SEQUENCE && s->pattern_type != PT_NONE) {
+ av_log(s1, AV_LOG_ERROR,
+ "Unknown value '%d' for pattern_type option\n", s->pattern_type);
+ return AVERROR(EINVAL);
+ }
s->img_first = first_index;
s->img_last = last_index;
- s->img_number = s->start_number != 1 ? s->start_number : first_index;
+ s->img_number = first_index;
/* compute duration */
- st->start_time = 0;
- st->duration = last_index - first_index + 1;
+ if (!s->ts_from_file) {
+ st->start_time = 0;
+ st->duration = last_index - first_index + 1;
+ }
}
if (s1->video_codec_id) {
@@ -206,9 +304,55 @@ static int img_read_header(AVFormatContext *s1)
} else if (s1->audio_codec_id) {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = s1->audio_codec_id;
+ } else if (s1->iformat->raw_codec_id) {
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = s1->iformat->raw_codec_id;
} else {
+ const char *str = strrchr(s->path, '.');
+ s->split_planes = str && !av_strcasecmp(str + 1, "y");
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_id = ff_guess_image2_codec(s->path);
+ if (s1->pb) {
+ int probe_buffer_size = 2048;
+ uint8_t *probe_buffer = av_realloc(NULL, probe_buffer_size + AVPROBE_PADDING_SIZE);
+ AVInputFormat *fmt = NULL;
+ AVProbeData pd = { 0 };
+
+ if (!probe_buffer)
+ return AVERROR(ENOMEM);
+
+ probe_buffer_size = avio_read(s1->pb, probe_buffer, probe_buffer_size);
+ if (probe_buffer_size < 0) {
+ av_free(probe_buffer);
+ return probe_buffer_size;
+ }
+ memset(probe_buffer + probe_buffer_size, 0, AVPROBE_PADDING_SIZE);
+
+ pd.buf = probe_buffer;
+ pd.buf_size = probe_buffer_size;
+ pd.filename = s1->filename;
+
+ while ((fmt = av_iformat_next(fmt))) {
+ if (fmt->read_header != ff_img_read_header ||
+ !fmt->read_probe ||
+ (fmt->flags & AVFMT_NOFILE) ||
+ !fmt->raw_codec_id)
+ continue;
+ if (fmt->read_probe(&pd) > 0) {
+ st->codec->codec_id = fmt->raw_codec_id;
+ break;
+ }
+ }
+ if (s1->flags & AVFMT_FLAG_CUSTOM_IO) {
+ avio_seek(s1->pb, 0, SEEK_SET);
+ } else
+ ffio_rewind_with_probe_data(s1->pb, &probe_buffer, probe_buffer_size);
+ }
+ if (st->codec->codec_id == AV_CODEC_ID_NONE)
+ st->codec->codec_id = ff_guess_image2_codec(s->path);
+ if (st->codec->codec_id == AV_CODEC_ID_LJPEG)
+ st->codec->codec_id = AV_CODEC_ID_MJPEG;
+ if (st->codec->codec_id == AV_CODEC_ID_ALIAS_PIX) // we cannot distingiush this from BRENDER_PIX
+ st->codec->codec_id = AV_CODEC_ID_NONE;
}
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
pix_fmt != AV_PIX_FMT_NONE)
@@ -217,10 +361,11 @@ static int img_read_header(AVFormatContext *s1)
return 0;
}
-static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
+int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt)
{
VideoDemuxData *s = s1->priv_data;
- char filename[1024];
+ char filename_bytes[1024];
+ char *filename = filename_bytes;
int i, res;
int size[3] = { 0 }, ret[3] = { 0 };
AVIOContext *f[3] = { NULL };
@@ -233,10 +378,18 @@ static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
}
if (s->img_number > s->img_last)
return AVERROR_EOF;
- if (av_get_frame_filename(filename, sizeof(filename),
+ if (s->pattern_type == PT_NONE) {
+ av_strlcpy(filename_bytes, s->path, sizeof(filename_bytes));
+ } else if (s->use_glob) {
+#if HAVE_GLOB
+ filename = s->globstate.gl_pathv[s->img_number];
+#endif
+ } else {
+ if (av_get_frame_filename(filename_bytes, sizeof(filename_bytes),
s->path,
s->img_number) < 0 && s->img_number > 1)
return AVERROR(EIO);
+ }
for (i = 0; i < 3; i++) {
if (avio_open2(&f[i], filename, AVIO_FLAG_READ,
&s1->interrupt_callback, NULL) < 0) {
@@ -248,32 +401,86 @@ static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
}
size[i] = avio_size(f[i]);
- if (codec->codec_id != AV_CODEC_ID_RAWVIDEO)
+ if (!s->split_planes)
break;
filename[strlen(filename) - 1] = 'U' + i;
}
+ if (codec->codec_id == AV_CODEC_ID_NONE) {
+ AVProbeData pd = { 0 };
+ AVInputFormat *ifmt;
+ uint8_t header[PROBE_BUF_MIN + AVPROBE_PADDING_SIZE];
+ int ret;
+ int score = 0;
+
+ ret = avio_read(f[0], header, PROBE_BUF_MIN);
+ if (ret < 0)
+ return ret;
+ memset(header + ret, 0, sizeof(header) - ret);
+ avio_skip(f[0], -ret);
+ pd.buf = header;
+ pd.buf_size = ret;
+ pd.filename = filename;
+
+ ifmt = av_probe_input_format3(&pd, 1, &score);
+ if (ifmt && ifmt->read_packet == ff_img_read_packet && ifmt->raw_codec_id)
+ codec->codec_id = ifmt->raw_codec_id;
+ }
+
if (codec->codec_id == AV_CODEC_ID_RAWVIDEO && !codec->width)
infer_size(&codec->width, &codec->height, size[0]);
} else {
f[0] = s1->pb;
- if (f[0]->eof_reached)
- return AVERROR(EIO);
- size[0] = 4096;
+ if (avio_feof(f[0]) && s->loop && s->is_pipe)
+ avio_seek(f[0], 0, SEEK_SET);
+ if (avio_feof(f[0]))
+ return AVERROR_EOF;
+ if (s->frame_size > 0) {
+ size[0] = s->frame_size;
+ } else if (!s1->streams[0]->parser) {
+ size[0] = avio_size(s1->pb);
+ } else {
+ size[0] = 4096;
+ }
}
res = av_new_packet(pkt, size[0] + size[1] + size[2]);
- if (res < 0)
- return res;
+ if (res < 0) {
+ goto fail;
+ }
pkt->stream_index = 0;
pkt->flags |= AV_PKT_FLAG_KEY;
+ if (s->ts_from_file) {
+ struct stat img_stat;
+ if (stat(filename, &img_stat)) {
+ res = AVERROR(EIO);
+ goto fail;
+ }
+ pkt->pts = (int64_t)img_stat.st_mtime;
+#if HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
+ if (s->ts_from_file == 2)
+ pkt->pts = 1000000000*pkt->pts + img_stat.st_mtim.tv_nsec;
+#endif
+ av_add_index_entry(s1->streams[0], s->img_number, pkt->pts, 0, 0, AVINDEX_KEYFRAME);
+ } else if (!s->is_pipe) {
+ pkt->pts = s->pts;
+ }
+
+ if (s->is_pipe)
+ pkt->pos = avio_tell(f[0]);
pkt->size = 0;
for (i = 0; i < 3; i++) {
if (f[i]) {
ret[i] = avio_read(f[i], pkt->data + pkt->size, size[i]);
+ if (s->loop && s->is_pipe && ret[i] == AVERROR_EOF) {
+ if (avio_seek(f[i], 0, SEEK_SET) >= 0) {
+ pkt->pos = 0;
+ ret[i] = avio_read(f[i], pkt->data + pkt->size, size[i]);
+ }
+ }
if (!s->is_pipe)
- avio_close(f[i]);
+ avio_closep(&f[i]);
if (ret[i] > 0)
pkt->size += ret[i];
}
@@ -281,22 +488,84 @@ static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
if (ret[0] <= 0 || ret[1] < 0 || ret[2] < 0) {
av_free_packet(pkt);
- return AVERROR(EIO); /* signal EOF */
+ if (ret[0] < 0) {
+ res = ret[0];
+ } else if (ret[1] < 0) {
+ res = ret[1];
+ } else if (ret[2] < 0) {
+ res = ret[2];
+ } else {
+ res = AVERROR_EOF;
+ }
+ goto fail;
} else {
s->img_count++;
s->img_number++;
+ s->pts++;
+ return 0;
+ }
+
+fail:
+ if (!s->is_pipe) {
+ for (i = 0; i < 3; i++) {
+ avio_closep(&f[i]);
+ }
+ }
+ return res;
+}
+
+static int img_read_close(struct AVFormatContext* s1)
+{
+#if HAVE_GLOB
+ VideoDemuxData *s = s1->priv_data;
+ if (s->use_glob) {
+ globfree(&s->globstate);
+ }
+#endif
+ return 0;
+}
+
+static int img_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
+{
+ VideoDemuxData *s1 = s->priv_data;
+ AVStream *st = s->streams[0];
+
+ if (s1->ts_from_file) {
+ int index = av_index_search_timestamp(st, timestamp, flags);
+ if(index < 0)
+ return -1;
+ s1->img_number = st->index_entries[index].pos;
return 0;
}
+
+ if (timestamp < 0 || !s1->loop && timestamp > s1->img_last - s1->img_first)
+ return -1;
+ s1->img_number = timestamp%(s1->img_last - s1->img_first + 1) + s1->img_first;
+ s1->pts = timestamp;
+ return 0;
}
#define OFFSET(x) offsetof(VideoDemuxData, x)
#define DEC AV_OPT_FLAG_DECODING_PARAM
-static const AVOption options[] = {
- { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, DEC },
- { "video_size", "", OFFSET(video_size), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, DEC },
- { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, { .str = "25" }, 0, 0, DEC },
- { "loop", "", OFFSET(loop), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, DEC },
- { "start_number", "first number in the sequence", OFFSET(start_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, INT_MAX, DEC },
+const AVOption ff_img_options[] = {
+ { "framerate", "set the video framerate", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, DEC },
+ { "loop", "force loop over input file sequence", OFFSET(loop), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, DEC },
+
+ { "pattern_type", "set pattern type", OFFSET(pattern_type), AV_OPT_TYPE_INT, {.i64=PT_GLOB_SEQUENCE}, 0, INT_MAX, DEC, "pattern_type"},
+ { "glob_sequence","select glob/sequence pattern type", 0, AV_OPT_TYPE_CONST, {.i64=PT_GLOB_SEQUENCE}, INT_MIN, INT_MAX, DEC, "pattern_type" },
+ { "glob", "select glob pattern type", 0, AV_OPT_TYPE_CONST, {.i64=PT_GLOB }, INT_MIN, INT_MAX, DEC, "pattern_type" },
+ { "sequence", "select sequence pattern type", 0, AV_OPT_TYPE_CONST, {.i64=PT_SEQUENCE }, INT_MIN, INT_MAX, DEC, "pattern_type" },
+ { "none", "disable pattern matching", 0, AV_OPT_TYPE_CONST, {.i64=PT_NONE }, INT_MIN, INT_MAX, DEC, "pattern_type" },
+
+ { "pixel_format", "set video pixel format", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
+ { "start_number", "set first number in the sequence", OFFSET(start_number), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, DEC },
+ { "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 },
+ { "video_size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, DEC },
+ { "frame_size", "force frame size in bytes", OFFSET(frame_size), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, DEC },
+ { "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" },
+ { "none", "none", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 2, DEC, "ts_type" },
+ { "sec", "second precision", 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 2, DEC, "ts_type" },
+ { "ns", "nano second precision", 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 2, DEC, "ts_type" },
{ NULL },
};
@@ -304,7 +573,7 @@ static const AVOption options[] = {
static const AVClass img2_class = {
.class_name = "image2 demuxer",
.item_name = av_default_item_name,
- .option = options,
+ .option = ff_img_options,
.version = LIBAVUTIL_VERSION_INT,
};
AVInputFormat ff_image2_demuxer = {
@@ -312,8 +581,10 @@ AVInputFormat ff_image2_demuxer = {
.long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
.priv_data_size = sizeof(VideoDemuxData),
.read_probe = img_read_probe,
- .read_header = img_read_header,
- .read_packet = img_read_packet,
+ .read_header = ff_img_read_header,
+ .read_packet = ff_img_read_packet,
+ .read_close = img_read_close,
+ .read_seek = img_read_seek,
.flags = AVFMT_NOFILE,
.priv_class = &img2_class,
};
@@ -322,15 +593,268 @@ AVInputFormat ff_image2_demuxer = {
static const AVClass img2pipe_class = {
.class_name = "image2pipe demuxer",
.item_name = av_default_item_name,
- .option = options,
+ .option = ff_img_options,
.version = LIBAVUTIL_VERSION_INT,
};
AVInputFormat ff_image2pipe_demuxer = {
.name = "image2pipe",
.long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
.priv_data_size = sizeof(VideoDemuxData),
- .read_header = img_read_header,
- .read_packet = img_read_packet,
+ .read_header = ff_img_read_header,
+ .read_packet = ff_img_read_packet,
.priv_class = &img2pipe_class,
};
#endif
+
+static int bmp_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+ int ihsize;
+
+ if (AV_RB16(b) != 0x424d)
+ return 0;
+
+ ihsize = AV_RL32(b+14);
+ if (ihsize < 12 || ihsize > 255)
+ return 0;
+
+ if (!AV_RN32(b + 6)) {
+ return AVPROBE_SCORE_EXTENSION + 1;
+ }
+ return AVPROBE_SCORE_EXTENSION / 4;
+}
+
+static int dds_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if ( AV_RB64(b) == 0x444453207c000000
+ && AV_RL32(b + 8)
+ && AV_RL32(b + 12))
+ return AVPROBE_SCORE_MAX - 1;
+ return 0;
+}
+
+static int dpx_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+ int w, h;
+ int is_big = (AV_RN32(b) == AV_RN32("SDPX"));
+
+ if (p->buf_size < 0x304+8)
+ return 0;
+ w = is_big ? AV_RB32(p->buf + 0x304) : AV_RL32(p->buf + 0x304);
+ h = is_big ? AV_RB32(p->buf + 0x308) : AV_RL32(p->buf + 0x308);
+ if (w <= 0 || h <= 0)
+ return 0;
+
+ if (is_big || AV_RN32(b) == AV_RN32("XPDS"))
+ return AVPROBE_SCORE_EXTENSION + 1;
+ return 0;
+}
+
+static int exr_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RL32(b) == 20000630)
+ return AVPROBE_SCORE_EXTENSION + 1;
+ return 0;
+}
+
+static int j2k_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RB64(b) == 0x0000000c6a502020 ||
+ AV_RB32(b) == 0xff4fff51)
+ return AVPROBE_SCORE_EXTENSION + 1;
+ return 0;
+}
+
+static int jpeg_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+ int i, state = 0xD8;
+
+ if (AV_RB16(b) != 0xFFD8 ||
+ AV_RB32(b) == 0xFFD8FFF7)
+ return 0;
+
+ b += 2;
+ for (i = 0; i < p->buf_size - 3; i++) {
+ int c;
+ if (b[i] != 0xFF)
+ continue;
+ c = b[i + 1];
+ switch (c) {
+ case 0xD8:
+ return 0;
+ case 0xC0:
+ case 0xC1:
+ case 0xC2:
+ case 0xC3:
+ case 0xC5:
+ case 0xC6:
+ case 0xC7:
+ if (state != 0xD8)
+ return 0;
+ state = 0xC0;
+ break;
+ case 0xDA:
+ if (state != 0xC0)
+ return 0;
+ state = 0xDA;
+ break;
+ case 0xD9:
+ if (state != 0xDA)
+ return 0;
+ state = 0xD9;
+ break;
+ case 0xE0:
+ case 0xE1:
+ case 0xE2:
+ case 0xE3:
+ case 0xE4:
+ case 0xE5:
+ case 0xE6:
+ case 0xE7:
+ case 0xE8:
+ case 0xE9:
+ case 0xEA:
+ case 0xEB:
+ case 0xEC:
+ case 0xED:
+ case 0xEE:
+ case 0xEF:
+ i += AV_RB16(&b[i + 2]) + 1;
+ break;
+ default:
+ if ( (c >= 0x02 && c <= 0xBF)
+ || c == 0xC8)
+ return 0;
+ }
+ }
+
+ if (state == 0xD9)
+ return AVPROBE_SCORE_EXTENSION + 1;
+ return AVPROBE_SCORE_EXTENSION / 8;
+}
+
+static int jpegls_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RB32(b) == 0xffd8fff7)
+ return AVPROBE_SCORE_EXTENSION + 1;
+ return 0;
+}
+
+static int qdraw_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if ( p->buf_size >= 528
+ && (AV_RB64(b + 520) & 0xFFFFFFFFFFFF) == 0x001102ff0c00
+ && AV_RB16(b + 520)
+ && AV_RB16(b + 518))
+ return AVPROBE_SCORE_MAX * 3 / 4;
+ if ( (AV_RB64(b + 8) & 0xFFFFFFFFFFFF) == 0x001102ff0c00
+ && AV_RB16(b + 8)
+ && AV_RB16(b + 6))
+ return AVPROBE_SCORE_EXTENSION / 4;
+ return 0;
+}
+
+static int pictor_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RL16(b) == 0x1234)
+ return AVPROBE_SCORE_EXTENSION / 4;
+ return 0;
+}
+
+static int png_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RB64(b) == 0x89504e470d0a1a0a)
+ return AVPROBE_SCORE_MAX - 1;
+ return 0;
+}
+
+static int sgi_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RB16(b) == 474 &&
+ (b[2] & ~1) == 0 &&
+ (b[3] & ~3) == 0 && b[3] &&
+ (AV_RB16(b + 4) & ~7) == 0 && AV_RB16(b + 4))
+ return AVPROBE_SCORE_EXTENSION + 1;
+ return 0;
+}
+
+static int sunrast_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RB32(b) == 0x59a66a95)
+ return AVPROBE_SCORE_EXTENSION + 1;
+ return 0;
+}
+
+static int tiff_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RB32(b) == 0x49492a00 ||
+ AV_RB32(b) == 0x4D4D002a)
+ return AVPROBE_SCORE_EXTENSION + 1;
+ return 0;
+}
+
+static int webp_probe(AVProbeData *p)
+{
+ const uint8_t *b = p->buf;
+
+ if (AV_RB32(b) == 0x52494646 &&
+ AV_RB32(b + 8) == 0x57454250)
+ return AVPROBE_SCORE_MAX - 1;
+ return 0;
+}
+
+#define IMAGEAUTO_DEMUXER(imgname, codecid)\
+static const AVClass imgname ## _class = {\
+ .class_name = AV_STRINGIFY(imgname) " demuxer",\
+ .item_name = av_default_item_name,\
+ .option = ff_img_options,\
+ .version = LIBAVUTIL_VERSION_INT,\
+};\
+AVInputFormat ff_image_ ## imgname ## _pipe_demuxer = {\
+ .name = AV_STRINGIFY(imgname) "_pipe",\
+ .long_name = NULL_IF_CONFIG_SMALL("piped " AV_STRINGIFY(imgname) " sequence"),\
+ .priv_data_size = sizeof(VideoDemuxData),\
+ .read_probe = imgname ## _probe,\
+ .read_header = ff_img_read_header,\
+ .read_packet = ff_img_read_packet,\
+ .priv_class = & imgname ## _class,\
+ .flags = AVFMT_GENERIC_INDEX, \
+ .raw_codec_id = codecid,\
+};
+
+IMAGEAUTO_DEMUXER(bmp, AV_CODEC_ID_BMP)
+IMAGEAUTO_DEMUXER(dds, AV_CODEC_ID_DDS)
+IMAGEAUTO_DEMUXER(dpx, AV_CODEC_ID_DPX)
+IMAGEAUTO_DEMUXER(exr, AV_CODEC_ID_EXR)
+IMAGEAUTO_DEMUXER(j2k, AV_CODEC_ID_JPEG2000)
+IMAGEAUTO_DEMUXER(jpeg, AV_CODEC_ID_MJPEG)
+IMAGEAUTO_DEMUXER(jpegls, AV_CODEC_ID_JPEGLS)
+IMAGEAUTO_DEMUXER(pictor, AV_CODEC_ID_PICTOR)
+IMAGEAUTO_DEMUXER(png, AV_CODEC_ID_PNG)
+IMAGEAUTO_DEMUXER(qdraw, AV_CODEC_ID_QDRAW)
+IMAGEAUTO_DEMUXER(sgi, AV_CODEC_ID_SGI)
+IMAGEAUTO_DEMUXER(sunrast, AV_CODEC_ID_SUNRAST)
+IMAGEAUTO_DEMUXER(tiff, AV_CODEC_ID_TIFF)
+IMAGEAUTO_DEMUXER(webp, AV_CODEC_ID_WEBP)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 09:18:38 +0000