Signed-off-by: Martin Storsjö <martin@martin.st>

This is more consistent with naming in the rest of Libav.

Prevents it from referring to the rest of the list.

This is required for letting applications to create and destroy
AVFilterInOut structs in a convenient way.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Right now, e.g. scale,[in]overlay would connect scale to the first
overlay input and [in] to the second, which goes against the
documentation and is unintuitive.

The bug happens because of the ordering mess in curr_inputs variable:
1) the unlabeled links from the previous filter are added to it in
correct order
2) input labels are parsed and inserted to the beginning one by one
(i.e. in reverse order)
3) curr_inputs is matched against filter inputs in reverse order

Fix the problem by always using proper ordering without trying to be
clever.

Unlike avfilter_graph_parse(), it returns unlinked inputs and outputs
to the caller, which allows parsing of graphs where inputs/outputs are
not known in advance.

Require "void *" rather than "AVClass *" for the log context type.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fix crash in create_filter() which occurrs if a scale filter with no
args is provided.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Make avfilter_graph_parse() only release the internal structures
allocated during the parsing, and leave to free the graph itself to
the calling code.

This approach looks cleaner, as the graph is not allocated by the
function.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Originally committed as revision 26334 to svn://svn.ffmpeg.org/ffmpeg/trunk

invalid filterchain is detected.

Originally committed as revision 25936 to svn://svn.ffmpeg.org/ffmpeg/trunk

headers.

Originally committed as revision 25838 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25761 to svn://svn.ffmpeg.org/ffmpeg/trunk

each specified output link label.

Fix crash.

Originally committed as revision 25723 to svn://svn.ffmpeg.org/ffmpeg/trunk

The new name is shorter and more consistent with the FFmpeg API, and
sounds less evil.

Originally committed as revision 25707 to svn://svn.ffmpeg.org/ffmpeg/trunk

avfilter_graph_parse() declaration to libavfilter/avfiltergraph.h.

Simplify, and less confusing for the user.

Originally committed as revision 25705 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25703 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25700 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25699 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25698 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25697 to svn://svn.ffmpeg.org/ffmpeg/trunk

link label parsed by parse_link_name() is invalid.

Originally committed as revision 25696 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25695 to svn://svn.ffmpeg.org/ffmpeg/trunk

Less confusing.

Originally committed as revision 25694 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25693 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25692 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25691 to svn://svn.ffmpeg.org/ffmpeg/trunk

The new name is shorter and more consistent with the rest of the API.

This change breaks libavfilter API/ABI.

Originally committed as revision 25674 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25225 to svn://svn.ffmpeg.org/ffmpeg/trunk

AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name);
to:
int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);

This way it is possible to propagate an error code telling the reason
of the failure.

Originally committed as revision 24765 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24423 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24422 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24421 to svn://svn.ffmpeg.org/ffmpeg/trunk

messages.

Originally committed as revision 24420 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24419 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24418 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24016 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23147 to svn://svn.ffmpeg.org/ffmpeg/trunk

Add ';' and '\n' to the terminating characters for the name of a
filter, and ';' to the terminating characters for its args.

Originally committed as revision 20800 to svn://svn.ffmpeg.org/ffmpeg/trunk

things like

[in] vflip [out];

Originally committed as revision 18772 to svn://svn.ffmpeg.org/ffmpeg/trunk

This also avoids the need for '\=' escaping.

Originally committed as revision 18726 to svn://svn.ffmpeg.org/ffmpeg/trunk

strspn().

Originally committed as revision 18645 to svn://svn.ffmpeg.org/ffmpeg/trunk

consistency with the rest of the API.

Originally committed as revision 17624 to svn://svn.ffmpeg.org/ffmpeg/trunk