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This has been reimplemented in the "rewind" input plugin.
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This replaces the rewinding buffer code from the CURL input plugin.
It is more generic, and allows rewinding even when the server sends
Icy-Metadata (which would have been too difficult to implement within
the CURL plugin).
This is a rather complex patch for the stable branch (v0.15.x), but it
fixes a serious problem: the "vorbis" decoder plugin was unable to
play streams with Icy-Metadata, because it couldn't rewind the stream
after detecting the codec (Vorbis vs. FLAC).
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When the connection is lost while buffering, the CURL input plugin may
enter an endless loop, because it does not check the EOF condition.
This patch makes fill_buffer() return success only if there's at least
one buffer, which is enough of a check.x
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When a received chunk of data has only icy-metadata, there was no
usable data left for input_curl_read() to return, and thus it returned
0 bytes. "0" however is a special value for "end of file" or
"error". This patch makes input_curl_read() read more data from the
socket, until the read request can be fulfilled (or until there's
really EOF).
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strcasecmp() is locale dependent, making it a bad choice for internal
string comparisons.
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The old global settings "http_proxy_host", "http_proxy_port",
"http_proxy_user" and "http_proxy_password" continue to work.
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This updates the copyright header to all be the same, which is
pretty much an update of where to mail request for a copy of the GPL
and the years of the MPD project. This also puts all committers under
'The Music Player Project' umbrella. These entries should go
individually in the AUTHORS file, for consistancy.
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The GLIB_CHECK_VERSION() macro was used improperly, which broke build
on GLib < 2.14. Add a "!" for negation.
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Allow input plugins to configure with an "input" block in mpd.conf.
Also allow the user to disable a plugin completely.
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Instead of hard-coding the plugin global initialization in
input_stream_global_init(), make it walk the plugin list and
initialize all plugins.
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Create a sub directory for input plugins.
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Start to separate private from public input_stream API.
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Use GLIB_CHECK_VERSION() instead of manually checking
GLIB_MAJOR_VERSION, ...
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Define G_LOG_DOMAIN.
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This way, plugins can manipulate the plugin pointer during open().
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config_get_string() is easier to use than config_get_param() because
it unpacks the config_param struct.
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Renamed functions, types, variables.
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Calling input_curl_select() after EOF has been reached causes an
assertion failure. This can happen if the HTTP response is empty.
Check c->eof before calling input_curl_select().
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Set the "ready" flag for empty resources.
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To check for early connect failures, call curl_multi_info_read() in
the constructor input_curl_open(). This fixes an assertion failure.
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g_queue_clear() was introduced in GLib 2.14. Add a macro hack for
older GLib versions to emulate it.
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If http_proxy_{host, port, user, password} are provided in mpd.conf
they are not passed on to libcurl. As a result mpd cannot stream from
behind an http proxy.
The attached patch `http_proxy.patch` makes the relevant calls to
curl_easy_setopt(...) for all proxy configuration parameters, but is
only tested for host and port.
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When decoder_run_song() (decoder_thread.c) waits for the input stream
to become ready, it did that in a busy loop. Add a select() call to
input_curl_buffer() during connect/handshake (i.e. before the first
chunk of body data was received), to let the CPU relax.
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Get rid of the non-portable Linux list library, part II.
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Fix a typo in the icy-metadata patch.
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The tag() method reads a tag from the stream. This replaces the
meta_name and meta_title attributes.
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Follow HTTP redirects, but no more than 5.
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Send "Music Player Daemon " + VERSION as the User-Agent request
header.
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input_curl.c does not support parsing shoutcast metadata yet. Disable
the "Icy-Metadata" header for now, since it may cause corruptions in
the stream.
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If the caller attempts to seek only a few bytes forward, chances are
good that the offset is already in the buffer. In this case, simply
fast-forward the buffer.
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Added some assertions.
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If someone calls seek() with an invalid (negative) offset, the curl
implementation of that method returned false, but left this invalid
offset in input_stream.offset. Move the calculation to a temporary
variable.
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HTTP servers respond with "416 Requested Range Not Satisfiable" when a
client attempts to seek to the end of the file. Catch this special
case in input_curl_seek(). This fixes a glitch in the ogg vorbis
decoder plugin.
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Since we are using curl_multi_info_read() / CURLMSG_DONE for detecting
end-of-response, we can remove all running_handles==0 checks. For
some reason, that has never worked correctly.
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curl_multi_info_read() is the authoritative source of the
"end-of-response" information. Always set c->eof when a CURLMSG_DONE
message is received, and check the result (success/failure) after
that.
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Define the special value "-1" as "unknown size". Previously, there
was no indicator for streams with unknown size, which might confuse
some decoders.
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libcurl provides better error messages than curl_multi_strerror() when
you set the ERRORBUFFER option.
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The read() method must not return a negative value. Make it return 0
on error, just like the file input stream. Also set the "error"
attribute to -1.
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I had this option enabled during development, but at some point, it
must have gotten lost. FAILONERROR makes the curl stream fail when
the server returns a status code 400 or higher. We are not interested
in the server's error document.
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The function curl_multi_info_read() provides access to errors from the
curl easy interface.
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During codec detection, the beginning of the stream is consumed. This
is a common operation, which takes a lot of time when handling remote
resources. To optimize this, remember the first 64 kB of a stream.
This way, we can rewind the stream without actually fetching the start
of the stream again.
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size_t and long aren't 64 bit safe (i.e. files larger than 2 GB on a
32 bit OS). Use off_t instead, which is a 64 bit integer if compiled
with large file support.
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Don't attempt to open a HTTP URL as a local file, and don't send a
local path to libcurl.
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If the server sends the headers "icy-name", "ice-name",
"x-audiocast-name", set the stream title.
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Replaced the local variable "colon" (which had only temporary meaning)
with the variable "value". It is a pointer to the first byte of the
header value.
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