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demuxer_lavf: add an option for disabling hacks

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This commit is contained in:
wm4 2015-04-17 22:03:25 +02:00
parent 55ba4db742
commit 01cfcd6814
2 changed files with 11 additions and 0 deletions
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6
DOCS/man/options.rst
View File

@ -2022,6 +2022,12 @@ Demuxer
``--demuxer-lavf-format=<name>``
Force a specific libavformat demuxer.
``--demuxer-lavf-hacks=<yes|no>``
By default, some formats will be handled differently from other formats
by explicitly checking for them. Most of these compensate for weird or
imperfect behavior from libavformat demuxers. Passing ``no`` disables
these. For debugging and testing only.
``--demuxer-lavf-genpts-mode=<no|lavf>``
Mode for deriving missing packet PTS values from packet DTS. ``lavf``
enables libavformat's ``genpts`` option. ``no`` disables it. This used

5
demux/demux_lavf.c
View File

@ -65,6 +65,7 @@ struct demux_lavf_opts {
char *format;
char *cryptokey;
char **avopts;
int hacks;
int genptsmode;
};
@ -78,6 +79,7 @@ const struct m_sub_options demux_lavf_conf = {
OPT_FLAG("allow-mimetype", allow_mimetype, 0),
OPT_INTRANGE("probescore", probescore, 0, 1, AVPROBE_SCORE_MAX),
OPT_STRING("cryptokey", cryptokey, 0),
OPT_FLAG("hacks", hacks, 0),
OPT_CHOICE("genpts-mode", genptsmode, 0,
({"lavf", 1}, {"no", 0})),
OPT_KEYVALUELIST("o", avopts, 0),
@ -86,6 +88,7 @@ const struct m_sub_options demux_lavf_conf = {
.size = sizeof(struct demux_lavf_opts),
.defaults = &(const struct demux_lavf_opts){
.allow_mimetype = 1,
.hacks = 1,
// AVPROBE_SCORE_MAX/4 + 1 is the "recommended" limit. Below that, the
// user is supposed to retry with larger probe sizes until a higher
// value is reached.
@ -351,6 +354,8 @@ static int lavf_check_file(demuxer_t *demuxer, enum demux_check check)
for (int n = 0; format_hacks[n].ff_name; n++) {
const struct format_hack *entry = &format_hacks[n];
if (!lavfdopts->hacks)
continue;
if (!matches_avinputformat_name(priv, entry->ff_name))
continue;
if (entry->mime_type && strcasecmp(entry->mime_type, mime_type) != 0)