This is the most that can be represented with the current channel layout
system. This limit should be raised/removed when a better system is
implemented.
This misfeature is most likely completely useless and conflicts with
removing the mpegvideo-specific fields from AVFrame. In the improbable
case it is actually useful, it should be reimplemented in a better way.
These could be used for reference counting, or for keeping track of
decoding progress in references in multithreaded decoders.
Support is provided by gcc/msvc/suncc intrinsics, with a fallback using
pthread mutexes.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
When parsing the Xing/Info tag, don't set the bit rate if it's an Info tag.
When parsing the stream, don't override the bit rate if it's already set,
otherwise calculate the mean bit rate from parsed frames. This way, the bit
rate will be set correctly both for CBR and VBR streams.
CC:libav-stable@libav.org
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The IIR filter numerically diverges in such cases, this could easily be
fixed but would make the filter slower on some platforms
Fixes Ticket2246
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '70762508ec5919474edb92a5b1f266fd06640f9c':
lavc: Prettify printing of codec tags containing non alphanumeric characters
h264: Rename the jpeg_420 pixfmt list to match the common naming structure
Conflicts:
libavcodec/h264.c
libavcodec/utils.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This makes the decoder independent of mpegvideo.
This copy of the draw_horiz_band code is simplified compared to
the "generic" mpegvideo one which still has a number of special
cases for different codecs.
Signed-off-by: Martin Storsjö <martin@martin.st>
Make av_get_codec_tag_string() show codec tag string characters in a more
intelligible ways. For example the ascii char "@" is used as a number, so
should be displayed like "[64]" rather than as a printable character.
Apart alphanumeric chars, only the characters ' ' and '.' are used
literally in codec tags, all the other characters represent numbers.
This also avoids relying on locale-dependent character class functions.
Signed-off-by: Martin Storsjö <martin@martin.st>
This patch changes existing mathematical functions with faster
ones. Speeds up encoding more than 10%. Tested on x86 and
MIPS platforms.
Signed-off-by: Bojan Zivkovic <bojan@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The escape API will be useful to perform escaping programmatically, which
is required when crafting argument strings, and will be used for context
printing as well.
This is based on the ffescape tool code, with a few extensions and fixes.
* commit '5da51284937649a8ebb84fa951c235438fcbf8ae':
cavs: Add a dependency on h264chroma
lavc: Split out ff_hwaccel_pixfmt_list_420[] over individual codecs
Conflicts:
libavcodec/h263dec.c
libavcodec/h264.c
libavcodec/mpeg12.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5a4e9fe855282a99586050a507d0a486ad39df5b':
avcodec/internal: Fix #if DECODE_AUDIO / ENCODE_AUDIO name mismatch
shorten: use the unsigned type where needed
Merged-by: Michael Niedermayer <michaelni@gmx.at>
