| Commit message (Collapse) | Author | Age |
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Generated with
sed -i 's|Copyright.*Andre Noll.*|SPDX-License-Identifier: GPL-2.0 */|g' *.c *.h
followed by manually tweaking the result a bit. No license change intended.
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Minor improvements to the API description in buffer_tree.h, a lot of \a and
\p removal in buffer_tree.c, and the addition of some missing \ref statements.
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Nothing major, just a few minor English issues.
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A lot of functions of the buffer tree API don't modify the memory
referenced by the pointers passed. This patch marks these pointer
arguments as constant.
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The GPLv2 line does not add any additional information, so drop
it. This leaves a single line of legalese text for most files, which
is about the amount of screen real estate it deserves.
This patch was created with the following script (plus some manual
fixups):
awk '{
if (NR <= 5) {
gs = gensub(/.*Copyright.* ([0-9]+).*Andre Noll.*/, "\\1", "g")
if (gs != $0)
year = gs
next
}
if (NR == 6 && year != "")
printf("/* Copyright (C) %s Andre Noll <maan@tuebingen.mpg.de>, see file COPYING. */\n", year)
print
}'
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Done with
files=$(git grep -l 'Copyright (C) [0-9]\{4\}\(-2014\)* Andre Noll')
sed --in-place= -e 's/Copyright (C) \([0-9]\{4\}\)-2014 Andre Noll/Copyright (C) \1 Andre Noll/1' $files
In previous years we ran a similar script to set the second year in
the range to the current year. This is kind of silly, so let's get
rid of this useless information.
This commit replaces "Copyright (C) A-B" by "Copyright (C) A" in
all file headers, i.e. only the first year (A) is left in. Accurate
information including time stamps for each change can be obtained
from the git history.
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The mail server on systemlinux.org was down for more than a week
lately, so let's use an alternative official address. This commit
changes all maan@systemlinux.org addresses to maan@tuebingen.mpg.de.
Most .c and .h files contain the email address in the copyright header,
so they must all be patched. Three other files contain the address
for a different reason:
* README lists email and git, gitweb and home page URLs
* configure.ac needs it for configure -h
* version.c contains it for the -V option of all commands
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This year, we're really on time. The changes in this patch were
created by the following silly script:
files=$(git grep -l 'Copyright (C) [0-9]\{4\}\(-2013\)* Andre Noll')
sed --in-place= -e 's/Copyright (C) \([0-9]\{4\}\)-2013 Andre Noll/Copyright (C) \1-2014 Andre Noll/1' $files
sed --in-place= -e 's/Copyright (C) 2013 Andre Noll/Copyright (C) 2013-2014 Andre Noll/1' $files
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This changes btr_splice_out_node() to take a pointer to a btrn, just
like btr_remove_node(). This allows to set the variable to NULL after
the node has been spliced out. The callers are updated accordingly.
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Better late than never.
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This instructs the ->execute handler of the check_wav task to ask its
parent nodes for the channel count, sample rate and sample format in
case no wav header was found and no value for the query was given at
the command line. Currently this can never succeed, since the only
parent node of the check_wav task is the stdin task, which has no
clue about these things. However, once check_wav is being used by
the resample filter, one parent might be a decoder which can tell.
This requires to add the new public btr_parent() to buffer_tree.c to
let the check_wav node obtain the node to start the search from.
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146316 btr_exec_up(): Also ask given node.
6d9c35 btr: Introduce btr_add_output_dont_free().
4ac313 btr: Remove btr_free_node().
Has been cooking in next for a week.
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At the moment, all buffers which are fed to a buffer tree must be
allocated on the heap since the buffer tree code automatically frees
the buffer once its refcount dropped to zero.
The new afh receiver, however, mmaps the audio file and likes to feed
chunks of this memory map into the buffer tree. This is currently
impossible because such buffers must not be freed.
This patch adds the new public function btr_add_output_dont_free()
which works like btr_add_output() but sets the new dont_free bit
which prevents the buffer from being deallocated.
Also btr_inplace_ok() is changed to return "false" whenever there
exists a buffer in the input queue with the dont_free bit set.
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This has turned out to be source for bugs. Deallocate everything
in btr_remove_node() hence making removing the node and freeing
its resources an atomic operation.
To avoid dangling pointers to freed btrn nodes, the argument of
btr_remove_node() is changed to to struct btr_node **btrnp.
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"loglevel" is declared as a global variable elsewhere, and gcc-3.3.3 complains
beacuse of this:
buffer_tree.h:199: warning: declaration of `loglevel' shadows a global declaration
Just call the thing "ll".
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This function is useful for the flac decoder.
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In case para_server dies unexpectedly, para_audiod may still have a partial status
item in the buffer tree node of the client task which can lead to a busy loop.
Fix this by flushing the input queue and invalidate the current audio format to prevent
recreating a buffer tree before the status task resumes.
There is already flush_input_queue() in buffer_tree.c but that can't be called by audiod.c
as it is a static function. Make it public and rename it to btr_drain() which is shorter and
more to the point and has the usual btr_ prefix.
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Hey, this is earlier than last year :)
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The oggvorbis decoder needs to know this info, so make it public. As we have already
btr_get_input_queue_size() it is natural to rename btr_bytes_pending() to
btr_get_output_queue_size().
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This allows the users of the buffer pool API to obtain references to both parts
of the buffer pool area in case there is free space available at the end of the
area as well as at the beginning.
This is needed for reading from file descriptors where reading less than a full
datagram would discard the remaining part (DCCP and UDP).
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The use of the client code in audiod requires a node to be inserted
as the _parent_ of some existing node, which was not neccessary
before. Therefore a new btrn pointer for the child node is added to
struct btr_node_description and btr_new_node() is adjusted accordingly.
The patch also adds a small helper sched_request_barrier() to
the scheduler.
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As the number of arguments to btr_new_node() grows, the code becomes
hard to read, especially since some callers must set many of the
arguments to NULL.
Using a pointer to a struct has the additional advantage that adding
new parameters does no longer require to touch all callers.
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The new code uses a buffer tree node which is inserted into an existing
buffer tree if possible, or put to the inactive list.
The grab command now takes the name of an existing parent node. The new
grab client node will be inserted as a child of this parent node.
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The consumers of the output of fecdec are typically the decoders
which have requirements on the minimal amount of data available
in one chunk. Using a buffer pool minimizes the number of memcpy()
operations needed during btr_merge when the current buffer is too small.
To fit the needs of fecdec, a new function btr_copy() is introduced
which copies a data buffer into the btr pool area and generates
btr buffers and references. btr_add_output_pool() had to be adjusted
a bit and all callers have been changed to match.
The patch also adds a new field "name" to the buffer_pool structure.
This makes the log output more readable.
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Using a buffer pool avoids quite some uses of memcpy() and memmove().
This patch also switches over the http receiver to use buffer pools.
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Still a bit rough and there are too many btr merges.
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This allows to have a single function which can be called from
both the pre_select and the post_select methods of all receivers/
filters/writers and from the stdin and stdout tasks.
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Also, close filter/receiver nodes in filter.c/recv.c instead of in
each post_select().
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A bit rough and only the mp3dec filter kind of works. Execute support
for mp3dec is also missing.
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Not yet finished.
Supporting btr required some changes in the buffer tree code
as well.
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