Revert "lavc/ccaption_dec: reap_screen() is responsible for clearing output buffer and signaling screen_changed"

This reverts commit 53ee84f8.

This reverts commit 26abdd61.

This reverts commit fe225b11.

Fixes ticket #5140.
Reviewed-by: James Zern

Durations outside are not supported

Fixes Ticket5114
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: James Almer <jamrial@gmail.com>

Fixes Ticket 5115
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Ricardo Constantino <wiiaboo@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavc/ccaption_dec: reap_screen() is responsible for clearing output buffer and signaling screen_changed

moves the screen_changed bit and the bprint_clear into reap_screen() so
the logic is centralized and callers do not need to touch the bit or the
buffer before calling reap_screen()

Reviewed-by: Christophe Gisquet <christophe.gisquet@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Reviewed-by: Christophe Gisquet <christophe.gisquet@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

The function documentation explicitly mentions it needs to be a multiple of 4.
Reviewed-by: Christophe Gisquet <christophe.gisquet@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

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

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

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

In many older QuickTime files, the audio format, or "fourcc", is
0x00000000. The QuickTime File Format Specification states the following
regarding this situation:

"This format descriptor should not be used, but may be found in some
files. Samples are assumed to be stored in either 'raw ' or 'twos'
format, depending on the sample size field in the sound description."

MPlayer handles this logic by itself, but FFmpeg/FFplay currently does
not.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

In many older QuickTime files, the audio format, or "fourcc", is
0x00000000. The QuickTime File Format Specification states the following
regarding this situation:

"This format descriptor should not be used, but may be found in some
files. Samples are assumed to be stored in either 'raw ' or 'twos'
format, depending on the sample size field in the sound description."

MPlayer handles this logic by itself, but FFmpeg/FFplay currently does
not.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

In the spirit of commit a956840c. Simple method to reproduce:
pass -vstats_file /dev/full to ffmpeg.

All raw fclose usages in ffmpeg.c taken care of here.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

This is faster; precision assured as result is a float.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

av_popcount is not defined in intmath.h.

Reviewed-by: ubitux
Signed-off-by: James Almer <jamrial@gmail.com>

No idea why this wasn't ever detected by a static analyzer.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

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