| Commit message (Collapse) | Author | Age | Files | Lines |
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Unfortunately, libarchive detects a stream of 0s as tar, as demonstrated
by "mpv /dev/zero". This is inconvenient in some cases.
One example is the .cue demuxer trying to open a raw audio .bin file,
which it allows only if probing fails (as .bin is raw and normally will
not look like any real file format). Although this use-case is
worthless.
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The cdio API always reads in sectors (fixed CDIO_CD_FRAMESIZE_RAW
blocks). In the past, mpv/MPlayer streams had a way for a stream to
signal a sector size, so the stream's fill_buffer implementation could
ignore the length argument. Later, that was removed, but stream_cdda.c
was left with assuming that the read size was always larger than the
sector size (rightfully at the time). Even later, this assumption was
broken with commit f37f4de, when it was suddenly possibly that smaller
reads were performed (at ring buffer boundaries). It returned EOF if the
buffer size was too small, so playback stopped very early.
Fix this by explicitly handling arbitrary sizes.
Tested with a .cue/.bin file only.
Fixes: #7384
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Why the fuck am I even bothering with this crap?
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This reverts commit 1b0129c4143fe73ef0ee3c3f1e2bed734c374d40.
It turns out most of the files affected by the idiotic use-case actually
use this old naming pattern, which I hoped was unused.
This means for now we'll always assume .rar files are multi-part (until
proven otherwise), but the following commit tries to fix this.
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The / was added some time ago, because it simplifies some other things.
But there is actually no reason to reject old URLs.
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Seems like I'm still not done with rar playback stuff...
It turns out the reason for archive_read_open1() opening all volumes had
nothing to do with libarchive's rar code, but was a consequence of how
multi volume support is implemented in libarchive, and due to the fact
that we enabled archive_read_support_format_zip_seekable() (through
archive_read_support_format_zip()).
The seekable zip format will seek to the end of the file and search for
a zip "header" there. It could possibly be considered a libarchive bug
that it does that even if it's fairly sure that it's a RAR file.
We already do probing on a small buffer read from the start of the file
(i.e. not giving libarchive a way to seek the stream before we think
it's an archive), but that does not help, since libarchive needs to
probe _again_. libarchive does not seem to provide a function to query
the format (no archive_read_get_format()). Which seems quite strange,
but at least I didn't find one.
This commit works this around by doing some manual rar/zip probing. We
could have gone only with rar probing. But detecting zip separately
allows us to avoid that stream_libarchive seeks to the end during early
probing. This is an additional bonus on top of "fixing" multi volume
rar.
The zip probing is from archive_read_format_zip_streamable_bid(). The
rar signature is the common prefix of the rar and rar5 formats in
libarchive (presumably the RAR fixed header parts without version).
If the demuxer seeks to the end of the rar entry, this will still open
all volumes; I'm not sure whether the old/removed rar code in mpv could
handle this better.
See: #7182
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Well that was too much misery when trying to deal with an idiotic
feature, so it had to be compensated for.
Replace insults with proper explanation, libarchive sort of isn't guilty
in the first place, and their format support is pretty good all things
considered.
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This turned every "normal" .rar filename into a multi-volume one
accidentally. Since the detection is purely by filename (due to lack of
support by libarchive I guess), it causes the nasty message added in the
previous commit to appear for every .rar file. Just drop it.
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I'm done.
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See manpage additions. The libarchive behavior mentioned in the last
paragraph there is technically unrelated, but makes this new option
mostly pointless.
See: #7182
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To annoy the user.
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Just add the entries as volumes directly.
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Instead of opening every volume on start just to see if it's there, all
all volumes that could possibly exist, and "handle" it on opening. This
requires working around some of libarchive's amazing stupidity and using
some empirically determined behavior. Will possibly break if libarchive
changes some of this behavior.
See: #7182
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We whitelist formats (and not all of them). RAR v5 is a separated format
entry for inexplicable reasons. (It's a separate implementation, but who
really wants to support only either of the rar formats?)
I'm not sure if it was libarchive 3.3.3. Their git history is absolutely
chaotic. These people do not know how to use git. I couldn't be bothered
to dig deeper.
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The code is more explicit now and less confusing,
and debug messages for the channel parsing for the several delivery systems
are now more similar.
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Make concat streams use the "worst" origin of its parts, which may or
may not be what makes sense. stream_memory has no natural way to do
this, so just add a vague comment.
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mpv has a very weak and very annoying policy that determines whether a
playlist should be used or not. For example, if you play a remote
playlist, you usually don't want it to be able to read local filesystem
entries. (Although for a media player the impact is small I guess.)
It's weak and annoying as in that it does not prevent certain cases
which could be interpreted as bad in some cases, such as allowing
playlists on the local filesystem to reference remote URLs. It probably
barely makes sense, but we just want to exclude some other "definitely
not a good idea" things, all while playlists generally just work, so
whatever.
The policy is:
- from the command line anything is played
- local playlists can reference anything except "unsafe" streams
("unsafe" means special stream inputs like libavfilter graphs)
- remote playlists can reference only remote URLs
- things like "memory://" and archives are "transparent" to this
This commit does... something. It replaces the weird stream flags with a
slightly clearer "origin" value, which is now consequently passed down
and used everywhere. It fixes some deviations from the described policy.
I wanted to force archives to reference only content within them, but
this would probably have been more complicated (or required different
abstractions), and I'm too lazy to figure it out, so archives are now
"transparent" (playlists within archives behave the same outside).
There may be a lot of bugs in this.
This is unfortunately a very noisy commit because:
- every stream open call now needs to pass the origin
- so does every demuxer open call (=> params param. gets mandatory)
- most stream were changed to provide the "origin" value
- the origin value needed to be passed along in a lot of places
- I was too lazy to split the commit
Fixes: #7274
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This has the advantage that playlists within the archive will work as
expected, because demux_playlist will correctly join the archive base
URL and entry name. Before this change, it could skip before the "|",
resulting in a broken URL.
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This warning seems to be designed well. It doesn't seem to warn on
fallthrough-only case statements, so it's compatible to well written
code.
stream_dvdnav.c had an obscure bug in inactive code, fix it.
stream_dvb.c is the only place where it intentionally falls through, I
guess I'll just leave it alone.
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This is preparation to get rid of the option-to-property bridge
(mp_on_set_option). This is a pretty insane thing that redirects
accesses to options to properties. It was needed in the ever ongoing
transition from something to... something else.
A good example for the need of this bridge is applying profiles at
runtime. This obviously goes through the config parser, but should also
make all changes effective, for which traditionally the property layer
is used.
There isn't much left that needs this bridge. This commit changes a
bunch of options (which also have a property implementation) to use
option change notifications instead. Many of the properties are still
left, but perform unrelated functions like OSD formatting.
This should be mostly compatible. There may be some subtle behavior
changes. For example, "hwdec" and "record-file" do not check for changes
anymore before applying them, so writing the current value to them
suddenly does something, while it was ignored before.
DVB changes untested, but should work.
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Until now, we've made FFmpeg use the default network timeout - which is
apparently infinite. I don't know if this was changed at some point,
although it seems likely, as I was sure there was a more useful default.
For most use cases, a smaller timeout is more useful (for example
recording something in the background), so force a timeout of 1 minute.
See: #5793
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stream_skip() semantics were kind of bad, especially after the recent
change to the stream code. Forward stream_skip() calls could still
trigger a seek and fail, even if it was supposed to actually skip data.
(Maybe the idea that stream_skip() should try to seek is worthless in
the first place.)
Rename it to stream_seek_skip() (takes absolute position now because I
think that's better), and make it always skip if the stream is marked as
forward.
While we're at it, make EOF detection more robust. I guess s->eof
shouldn't exist at all, since it's valid only "sometimes". It should be
removed... but not today. A 1-byte stream_read_peek() call is good to
get the s->eof flag set to a correct value.
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It was set, but its value was never used. The stream cache used to use
it, but it was removed. It controlled how much data it tried to read
from the underlying stream at once.
The user can now control the buffer size with --stream-buffer-size,
which achieves a similar effect, because the stream will in the common
case read half of the buffer size at once. In fact, the new default size
is 128KB, i.e. 64KB read size, which is as much as stream_file and
stream_cb requested by default. stream_memory requested more, but it
doesn't matter anyway. Only stream_smb set a larger size with 128KB.
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This is overlay convoluted as a stream control, and important enough to
warrant "first class" functionality.
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The dvdnav API reads in 2K blocks (dvdnav_get_next_block()). The mpv
wrapper (fill_buffer() in this file) expects that the read size done by
the mpv core is at least 2K for this reason. If not, it returns an
error.
This used to be OK, because there was a thing called section alignment
in the core code. This was removed because the core shouldn't suffer
from optical disc idiosyncrasies. Which means that ever since, it has
been working only by coincidence, or maybe not at all.
Fixing this would require keeping a buffer in the priv struct, and
returning it piece by piece if the core makes smaller reads. I have no
intention of writing such code, so add an error message asking for a
patch. If anyone actually cares about DVD, maybe it'll get fixed.
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This isn't really needed, since it doesn't support byte seeking (only
for avoiding that demux_disc fucks up even more if the nested demux_lavf
tries to seek in the TS).
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This is slightly better, although not much, and ultimately doesn't
matter.
The public API in stream_cb.h also uses char*, but can't change that.
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stream_read_peek() duplicated what stream_read_more() checks for anyway
(whether the forward buffer is large enough). This can be skipped by
making the stream_read_more() return value more consistent.
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demux_mkv was the only thing using this, and everything else accessed it
directly. No need to keep the indirection wrapper around.
(Funny how this getter was in the initial commit of MPlayer.)
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(Only half of the buffer is actually used in a useful way, see manpage
or commit which added the option.)
Might have some advantages with broken network filesystem drivers.
See: #6802
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Was probably worthless, and I can't measure a difference anymore (I used
to be able and it still seemed worth doing so back then).
When the default buffer size is enlarged in the next commit, the inline
buffer probably won't even be useful in theory, because the data will
rarely be on the same page as the other stream fields. It surely makes
the inline buffer seem like a ridiculous micro-optimization. Farewell...
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In some corner cases (see #6802), it can be beneficial to use a larger
stream buffer size. Use this as argument to rewrite everything for no
reason.
Turn stream.c itself into a ring buffer, with configurable size. The
latter would have been easily achievable with minimal changes, and the
ring buffer is the hard part. There is no reason to have a ring buffer
at all, except possibly if ffmpeg don't fix their awful mp4 demuxer, and
some subtle issues with demux_mkv.c wanting to seek back by small
offsets (the latter was handled with small stream_peek() calls, which
are unneeded now).
In addition, this turns small forward seeks into reads (where data is
simply skipped). Before this commit, only stream_skip() did this (which
also mean that stream_skip() simply calls stream_seek() now).
Replace all stream_peek() calls with something else (usually
stream_read_peek()). The function was a problem, because it returned a
pointer to the internal buffer, which is now a ring buffer with
wrapping. The new function just copies the data into a buffer, and in
some cases requires callers to dynamically allocate memory. (The most
common case, demux_lavf.c, required a separate buffer allocation anyway
due to FFmpeg "idiosyncrasies".) This is the bulk of the demuxer_*
changes.
I'm not happy with this. There still isn't a good reason why there
should be a ring buffer, that is complex, and most of the time just
wastes half of the available memory. Maybe another rewrite soon.
It also contains bugs; you're an alpha tester now.
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And remove libavutil includes where possible.
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demux_playlist.c is the only remaining user of this. Not sure if it
should stay this way, but for now I'll say yes.
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Getting this out of the way in preparation for reworking stream
internals.
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This partially reverts commit a9d83eac40c94f44d19fab7b6955331f10efe301
("Remove optical disc fancification layers").
Mostly due to the timestamp crap, this was never really going to work.
The playback layer is sensitive to timestamps, and derives the playback
time directly from the low level packet timestamps. DVD/BD works
differently, and libdvdnav/libbluray do not make it easy at all to
compensate for this. Which is why it never worked well, but not doing it
at all is even more awful.
demux_disc.c tried this and rewrote packet timestamps from low level TS
to playback time. So restore demux_disc.c, which should bring behavior
back to the old often non-working but slightly better state.
I did not revert anything that affects components above the demuxer
layer. For example, the properties for switching DVD angles or listing
disc titles are still gone. (Disc titles could be reimplemented as
editions. But not by me.)
This commit modifies the reverted code a bit; this can't be avoided,
because the internal API changed quite a bit. The old seek resync in
demux_lavf.c (which was a hack) is replaced with a hack. SEEK_FORCE and
demux_params.external_stream are new additions.
Some of this could/should be further cleaned up. If you don't want
"proper" DVD/BD support to disappear, you should probably volunteer.
Now why am I wasting my time for this? Just because some idiot users are
too lazy to rip their ever-wearing out shitty physical discs? Then why
should I not be lazy and drop support completely? They won't even be
thankful for me maintaining this horrible garbage for no compensation.
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This is realized by dvbin-channel-switch-offset,
which is a numeric offset on the channel initially tuned to.
Since the channel list is kept in the stream alone
depending on detected hardware and chosen card,
and no available backchannel to the player, there's no direct
property which could be switched.
Using input.conf like:
H cycle dvbin-channel-switch-offset up
K cycle dvbin-channel-switch-offset down
Q set dvbin-prog "ZDF HD"
allow fast and reliable channel switching again.
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If any parameters have been updated, reinitiate streaming_start.
Throttle checks since we poll from streaming_read.
This also requires the player to re-initialize, since all video
and audio streams and even the transport format may change.
This is added in the next commit.
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Notably, this allows to call dvb_streaming_start more than once,
simplifying e.g. channel switching.
Also, get rid of unused timeout variable.
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This is now treated in dvb_parse_path consistently
instead of logic scattered over various functions.
This is a requirement to sensibly re-evaluate config
after options have been changed, since we have two ways
to configure the stream (decorated URI and config parameters).
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This also allows the use of m_config_cache_alloc
which allows to watch config updates.
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Add yet another variant of the stream open function. This time, make it
so that it's possible to add new open parameters in an extendable way,
which should put an end to having to change this every other year.
Effectively get rid of the overly special stream_create_instance()
function and use the new one instead, which requires changes in
stream_concat.c and stream_memory.c. The function is still in private in
stream.c, but I preferred to make the mentioned users go through the new
function for orthogonality. The error handling (mostly logging) was
adjusted accordingly.
This should not have any functional changes. (To preempt any excuses, I
didn't actually test stream_concat and stream_memory.)
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This allows stream_cb backends to implement blocking
behavior inside read_fn, and still get notified when the user
wants to cancel and stop playback.
Signed-off-by: Aman Gupta <aman@tmm1.net>
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(At first I left this intentionally, because the temporarily disabled
stream ctrl code used it, but there's actually no reason to annoy
everyone with the warning.)
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Using LC_ALL_MASK is unnece |
