This enables the user (i.e. avconv) to automatically convert to the supported
sample format if needed.

This matches the output sample format and the range of the output values.

the user is not required to set bit_rate

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

There are no reason for "if (c_valid) { ... }" to appear before
"if (b_valid) { ... }".

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

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

The current code is a generalization of the earlier progressive MV
prediction code. This was supposed to predict MVs for both interlaced
and progressive pictures. But the interlaced MV prediction is buggy
and works mostly by luck.

This partially fixes interlaced MV prediction.

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

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

Found with asan and the venerable 1-dog.avi sample.

Filenames are brittle across renames and add no useful information.

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

run: The number of zero coefficients preceding a non-zero coefficient,
in the scan order. The absolute value of the non-zero coefficient is
called "level".

The run-level code makes illegal reads when trying to set up tables for
nonsense level 0.

run: The number of zero coefficients preceding a non-zero coefficient,
in the scan order. The absolute value of the non-zero coefficient is
called "level".

The run-level code makes illegal reads when trying to set up tables for
nonsense level 0.

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

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

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

Fixes the following conformance suite samples:
HCBP1_HHI_A.264, HCBP2_HHI_A.264, HCMP1_HHI_A.264 (main)
HCHP1_HHI_B.264, HCHP2_HHI_A.264, HCHP3_HHI_A.264 (frext)

This allows using these wrappers in the gcrypt mutex callbacks.

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

This extends the lock manager in avcodec to manage two separate
mutexes via the user-specified lock functions.

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

This allows it to use the defaults specified by preset/tune,
without overwriting it with the default value from the
AVCodecContext field.

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

This makes the code compile when FF_API_X264_GLOBAL_OPTS or
FF_API_LAME_GLOBAL_OPTS is 0.

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

This function used to set codec_type. With the current fallback
implementation based on avcodec_get_context_defaults3, codec_type
won't be set to the value passed in, but will be set to
AVMEDIA_TYPE_UNKNOWN. Legacy callers of this function might expect
this field to be set to the value passed in.

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

If attribute_deprecated is used in an enum declaration, it
should follow the 'enum' keyword, otherwise it's ignored
silently. This is the only case of attribute_deprecated for
enum declarations currently.

Currently, this attribute_deprecated doesn't have any effect.
If moved to the right place, it emits a warning every single
time avcodec.h is included, like this:

avcodec.h:2827: warning: ‘AVLPCType’ is deprecated (declared at avcodec.h:543)

There is already a working attribute_deprecated for the
corresponding field in AVCodecContext, so therefore this
one shouldn't be needed.

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

The calling convention only allows 4 non-stack parameter, with each
float or int register being skipped if not used.

fixes Bug 64

The new decoder is much smaller and has better code quality.
Cleanup and fixes courtesy of Kostya Shishkov.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Add some parameters to existing function documentation.
Remove some unneeded documentation.
Convert some static function documentation to non-doxygen style.

This fixes a bug where the whole buffer was returned as decoded audio due to
*data_size not being set to zero and the return value being >= 0.

we only support decoding of mono imc

ask for a sample if not mono