opt_codec() is mostly copied over from ffplay.c.
This is useful when different decoders have different capabilities,
or to test a specific decoder.
Signed-off-by: Maryla Ustarroz-Calonge <maryla@google.com>
This creates a new codec id for mxf vbi_vanc_smpte_436M streams.
This makes it easier to use from other [de]muxers and bitstream filters.
It's just the data in Table 7 (starts on page 13) of:
https://pub.smpte.org/latest/st436/s436m-2006.pdf
Signed-off-by: Jacob Lifshay <programmerjake@gmail.com>
Add check for the return value of av_packet_alloc() to avoid potential NULL pointer dereference.
Moreover, replace redundant av_free() with fprintf().
Fixes: 9a38184a14 ("examples/decode_audio: allocate the packet dynamically")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
As noted in the code in several places, some DVB subtitle decoders
don't handle 2bpp color. This patch adds a min_bpp option which
sets a lower bound on the number of bits-per-pixel in the color
tables. It defaults to 4 to avoid the problematic 2bpp decoders.
Signed-off-by: Ronan Waide <waider@waider.ie>
Allows to output LRC with more precision than standard centiseconds.
Time base is determined by number of requested digits.
Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
This filter can detect various properties about the image, including
whether or not there are out-of-range values, or whether the input appears
to use straight or premultiplied alpha.
Of course, these can only be heuristics, with "undetermined" as the base
case. While we can definitely prove the existence of full range or
straight alpha colors, we can never infer the opposite.
This patch adds the pad_cuda video filter. A filter similar to the existing pad filter but accelerated by CUDA.
The filter shares the same options as the software pad filter.
Example usage:
ffmpeg -hwaccel cuda -hwaccel_output_format cuda -i input.mp4 -vf "pad_cuda=w=iw+100:h=ih+100:x=-1:y=-1:color=red" out.mp4
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
This patch doesn't effect WHIP usage via command, as WHIP always
needs to be explicitly specified
Signed-off-by: Jack Lau <jacklau1222@qq.com>
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This was requested by users of `vf_libplacebo`, to mirror the existing
option on the other `vf_scale_*` family of filters. While we have
`vf_normalize`, it was not as useful in the event that the content
stretching was actually desired.
Bridges an important usability gap between `vf_scale` and `vf_libplacebo`
that made mixing and matching the filters needlessly difficult.
The iirfilter is only used in its test tool since
01ecb7172b which
stopped using it in AAC, its only user.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
0. WHIP Version 3.
1. The WHIP muxer has been renamed and refined,
with improved logging context and error messages for SSL, DTLS, and RTC.
2. Magic numbers have been replaced with macros and extracted to functions,
and log levels have been altered for better clarity.
3. DTLS curve list has been updated,
and SRTP profile names have been refined for FFmpeg and OpenSSL.
4. ICE STUN magic number has been refined,
and RTP payload types have been updated based on Chrome's definition.
5. Fixed frame size has been refined to rtc->audio_par->frame_size,
and h264_mp4toannexb is now used to convert MP4/ISOM to annexb.
6. OPUS timestamp issue has been addressed,
and marker setting has been corrected after utilizing BSF.
7. DTLS handshake and ICE handling have been optimized for improved performance,
with a single handshake timeout and server role to prevent ARQ.
8. Consolidated ICE request/response handling and DTLS handshake into a single function,
and fixed OpenSSL build errors to work with Pion.
9. Merge TLS & DTLS implementation, shared BIO callbacks, read, write,
print_ssl_error, openssl_init_ca_key_cert,
init_bio_method function and shared same data structure
10. Modify configure that whip is enabled only dtls is
enabled(just support openssl for now) to fix build error
Co-authored-by: winlin <winlinvip@gmail.com>
Co-authored-by: yangrtc <yangrtc@aliyun.com>
Co-authored-by: cloudwebrtc <duanweiwei1982@gmail.com>
Co-authored-by: Haibo Chen <495810242@qq.com>
Co-authored-by: Steven Liu <lq@chinaffmpeg.org>
Co-authored-by: Jun Zhao <barryjzhao@tencent.com>
Signed-off-by: Jack Lau <jacklau1222@qq.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
Check the alpha plane for (almost) transparent frames, instead of checking
the luma channel for almost black frames.
Signed-off-by: Niklas Haas <git@haasn.dev>
Sponsored-by: nxtedition
