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libavformat/concatdec: remove support for unsafe=-1

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It only makes sense as the default value,
but it is not the default since 689211d572.
This commit is contained in:
Nicolas George 2021-07-28 12:38:08 +02:00
parent 5b258c2770
commit 46fb395952
2 changed files with 5 additions and 10 deletions
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9
doc/demuxers.texi
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@ -96,8 +96,7 @@ backslash or single quotes.
All subsequent file-related directives apply to that file.
@item @code{ffconcat version 1.0}
Identify the script type and version. It also sets the @option{safe} option
to 1 if it was -1.
Identify the script type and version.
To make FFmpeg recognize the format automatically, this directive must
appear exactly as is (no extra space or byte-order-mark) on the very first
@ -177,7 +176,8 @@ This demuxer accepts the following option:
@table @option
@item safe
If set to 1, reject unsafe file paths. A file path is considered safe if it
If set to 1, reject unsafe file paths and directives.
A file path is considered safe if it
does not contain a protocol specification and is relative and all components
only contain characters from the portable character set (letters, digits,
period, underscore and hyphen) and have no period at the beginning of a
@ -187,9 +187,6 @@ If set to 0, any file name is accepted.
The default is 1.
-1 is equivalent to 1 if the format was automatically
probed and 0 otherwise.
@item auto_convert
If set to 1, try to perform automatic conversions on packet data to make the
streams concatenable.

6
libavformat/concatdec.c
View File

@ -118,7 +118,7 @@ static int add_file(AVFormatContext *avf, char *filename, ConcatFile **rfile,
size_t url_len;
int ret;
if (cat->safe > 0 && !safe_filename(filename)) {
if (cat->safe && !safe_filename(filename)) {
av_log(avf, AV_LOG_ERROR, "Unsafe file name '%s'\n", filename);
FAIL(AVERROR(EPERM));
}
@ -476,8 +476,6 @@ static int concat_read_header(AVFormatContext *avf)
av_log(avf, AV_LOG_ERROR, "Line %d: invalid version\n", line);
FAIL(AVERROR_INVALIDDATA);
}
if (cat->safe < 0)
cat->safe = 1;
} else {
av_log(avf, AV_LOG_ERROR, "Line %d: unknown keyword '%s'\n",
line, keyword);
@ -757,7 +755,7 @@ static int concat_seek(AVFormatContext *avf, int stream,
static const AVOption options[] = {
{ "safe", "enable safe mode",
OFFSET(safe), AV_OPT_TYPE_BOOL, {.i64 = 1}, -1, 1, DEC },
OFFSET(safe), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, DEC },
{ "auto_convert", "automatically convert bitstream format",
OFFSET(auto_convert), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, DEC },
{ "segment_time_metadata", "output file segment start time and duration as packet metadata",