Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Thatt hardcodes the number of formats into lavfi and will break when a
shared lavu is updated, adding new formats.

Make ff_parse_channel_layout() accept unknown layouts too.

The functions are unused

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Detect when filtering known layouts from an explicit list
results in an empty list.

Fix erratic behavior.

The following commit:
b97d61f avfilter/ff_merge_formats: only merge if doing so does not loose chroma or alpha
introduced an exception to avoid lossy conversions.
Add a comment to explain the logic.
Fix the call to avoid applying it on audio formats.

Fixes Ticket1280

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The first parameter is a pointer and NULL is more correct

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Also remove it in once case when it is not needed.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

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

It was deprecated and removed after the recent 2->3 major bump.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

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

I changed the *_set_common_* functions to only set unset formats, then
added a wrapper that calls them after the filters query_formats.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

It is only useful inside filters and we don't allow user filters for
now.

Those functions are only useful inside filters. It is better to not
support user filters until the API is more stable.

The list goes back to being simple integers,
and avfilter_make_format64_list is fixed to work
with the correct structure directly.

all_channel_layouts.h is not a real header file and breaks make checkheaders.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The planar/packed switch and the packing_formats list is no longer
required, since the planar/packed information is now stored in the sample
format enum.

This is technically a major API break, possibly it should be not too
painful as we marked the audio filtering API as unstable.

It's more convenient to have them all in one file.

This fixes a double-free crash if lists are the same due to the two
merge_ref() calls at the end of the (useless) merging that happens.

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

A list of formats may have been dynamically created by the calling code,
and thus should not be referenced by the sink buffer context.

Avoid possible invalid data reference.

instead of trying to continue.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Note, this is a theoretical fix, iam not aware of a case where this function receives
duplicates in its input.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

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

Replace sizeof((*avff)->formats)
with    sizeof(*(*avff)->formats)

as the size of the array element is given by the pointed element
rather than by its pointer.

In particular fix computation with the pending patch when
sizeof(int64_t) != sizeof(int64_t *).

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This list is mainly useful to be directly used as a parameter by the
audio sink buffer, when there is no need to force a specific channel
layout.

The list of formats is generated programmatically, and avoids channel
layouts not supported by libavfilter (with more than 8 channels).

We preferred to avoid compile-time generation in order to avoid some
unnecessary complexity (build hacks, generating code maintainance
etc.).

A more compact way to express this list through the use of macros
should be possible when libavfilter will support more than 8 channels,
as there will be no need to filter out channel layouts with more than
8 channels.

See thread:
Subject: [FFmpeg-devel] [PATCH] lavfi: add ff_all_channel_layouts internal symbol
Date: Sat, 20 Aug 2011 15:33:16 +0200

A function name should tell what the function does rather than what
the function returns. This also avoids possible conflicts
(e.g. between a function and a public list of all supported formats),
and clarifies the code.

Breaks audio API/ABI, add a backward compatibility layer for video
API/ABI.

Also consistent with AVCodecContext.sample_rate. Simplify/avoid
pointless type checks and conversions.

Breaks audio API/ABI.