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

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

Avoid using AV_PIX_FMT_NB, since that hardcodes the number of pixel
formats into lavfi and will break when a shared lavu is updated, adding
new pixel formats.

Avoid using AV_PIX_FMT_NB, since that hardcodes the number of pixel
formats into lavfi and will break when a shared lavu is updated, adding
new pixel formats.

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

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

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

Signed-off-by: NKostya Shishkov <kostya.shishkov@gmail.com>

Also include zero in the table, eliminating a special case in the
decoder.
Signed-off-by: NNiels Möller <nisse@southpole.se>
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

Removes an ugly $(if) to avoid conflicts with $(FFLIBS-) in the
top-level MAkefile.

This fixes compilation with MSVC.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

Add AV_PKT_DATA_DISPLAYMATRIX and AV_FRAME_DATA_DISPLAYMATRIX as stream and
frame side data (respectively) to describe a display transformation matrix
for linear transformation operations on the decoded video.

Add functions to easily extract a rotation angle from a matrix and
conversely to setup a matrix for a given rotation angle.
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

This also handles side data properly.

Side data count is incremented by by calling av_packet_new_side_data()
in the following loop, setting it explicitly results in the resulting
value being twice what it should be.

CC: libav-stable@libav.org

All encoders should output proper timestamps now.

Use OutputStream.last_mux_dts as an approximation of 'current' output
time instead.

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

Process 4 pixels at once.
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

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

This mirrors the demuxer behaviour and avoids accessing
AVCodecContext.codec, which should not be done in muxers.

Also, return a proper error code.

It is not supposed to be set from outside of libavcodec.
Set average framerate instead.

Do not call an AVCodecContext 'stream', that is highly confusing.
Also, add a local variable for the current AVStream in the loop over all
streams.

Do not leave a non-zero extradata_size set on failure

coded_frame is not meant to be changed from outside of lavc, and is not
used for decoding.
Set AVCodecContext.field_order instead.

Pad it with the required amount of zeros, check for malloc failure.