Philip Langdale [Thu, 10 Mar 2011 06:09:00 +0000 (22:09 -0800)]
CrystalHD decoder support v7
The Broadcom CrystalHD decoder chips provide hardware video
decoding for a number of video formats. It does so using a
memory:memory interface where a compressed bitstream is fed
in and decompressed pictures are copied out. As such, it works
independent of any graphics hardware in the system.
Features supported in this initial version:
* Support for Linux (using current drivers/library from git.wilsonet.com)
* Support for 70015 hardware
* Formats: MPEG2, MPEG4 Part 2, H.264, VC1 and DivX 3.11 (untested)
* Progressive content
* Non-H.264 Interlaced content
* H.264 MBAFF content
Features missing in this initial version:
* Support for OSX (might work - untested)
* Support for Windows
* Support for 70012 hardware
* H.264 PAFF content
Signed-off-by: Philip Langdale <philipl@overt.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Justin Ruggles [Tue, 8 Mar 2011 18:18:56 +0000 (13:18 -0500)]
ac3enc: shift coefficients to 24-bit following MDCT rather than using an exponent offset.
This makes channel coupling more accurate, increasing quality for stereo
content. It also simplifies exponent extraction and mantissa quantization
by no longer needing to apply an offset to the exponents.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
In retry_transfer_wrapper, do not check url_interrupt_cb, causes problems
when writing and pressing q during encoding. Instead, check url_interrupt_cb
at the end.
Note that when a protocol is interrupted by url_interrupt_cb, some data may
be silently discarded: the protocol context is not suitable for anything
anymore.
Signed-off-by: Nicolas George <nicolas.george@normalesup.org> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 688c22e033a48ebf84fb4b52642bbd40f11e9c4e)
When decoding latm config, use the corresponding aac context and its
m4ac instead of using NULL and a local variable. This fixes decoding of
audio in MPEG TS from SBTVD (the Brazillian Digital TV Sytem), when
there is no extradata. This is the case when using the decoder with
gst-ffmpeg and a GStreamer mpegts demuxer.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 36864ac3540445c513484017aa9927e942fac24a)
Sean McGovern [Fri, 4 Mar 2011 03:22:43 +0000 (22:22 -0500)]
h264_mp3toannexb_bsg: don't crash, but warn, if PPS/SPS not found.
Should an AVC-1 in MP4 stream not contain SPS or PPS NAL units,
this BSF is then unable to allocate an output buffer for the
modified stream. Warn that the resulting stream may be unplayable.
Martin Storsjö [Mon, 28 Feb 2011 13:39:36 +0000 (15:39 +0200)]
URLProtocol: Add URL_PROTOCOL_FLAG_NESTED_SCHEME
If this flag is set, the protocol can handle URLs where the
scheme is a nested scheme such as applehttp+file: - the protocol
can handle any URL where the first segment of the nested scheme
belongs to this protocol.
In retry_transfer_wrapper, do not check url_interrupt_cb, causes problems
when writing and pressing q during encoding. Instead, check url_interrupt_cb
at the end.
Note that when a protocol is interrupted by url_interrupt_cb, some data may
be silently discarded: the protocol context is not suitable for anything
anymore.
Signed-off-by: Nicolas George <nicolas.george@normalesup.org> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
When decoding latm config, use the corresponding aac context and its
m4ac instead of using NULL and a local variable. This fixes decoding of
audio in MPEG TS from SBTVD (the Brazillian Digital TV Sytem), when
there is no extradata. This is the case when using the decoder with
gst-ffmpeg and a GStreamer mpegts demuxer.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Peter Ross [Thu, 3 Mar 2011 11:37:05 +0000 (22:37 +1100)]
avio: add avio_skip macro
This is a substitute for the url_fskip function that was deprecated by
commit 0300db8ad778a194b4a8ec98f6da3de5b41c46ee. avio_fskip is provided to
improve demuxer code readability. It distinguishes the act of skipping over
unknown or irrelevant bytes from the standard avio_seek operation.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Sean McGovern [Fri, 4 Mar 2011 03:22:43 +0000 (22:22 -0500)]
h264_mp3toannexb_bsg: don't crash, but warn, if PPS/SPS not found.
Should an AVC-1 in MP4 stream not contain SPS or PPS NAL units,
this BSF is then unable to allocate an output buffer for the
modified stream. Warn that the resulting stream may be unplayable.
Fix roundup issue #2386.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Martin Storsjö [Mon, 28 Feb 2011 13:39:36 +0000 (15:39 +0200)]
URLProtocol: Add URL_PROTOCOL_FLAG_NESTED_SCHEME
If this flag is set, the protocol can handle URLs where the
scheme is a nested scheme such as applehttp+file: - the protocol
can handle any URL where the first segment of the nested scheme
belongs to this protocol.
Revert "lavf: deprecate get_strz() in favor of avio_get_str"
This API is simply ridiculous.
We of course keep API/ABI compatibility only useage of the worse API
is reverted.
Justin Ruggles [Fri, 4 Mar 2011 21:41:49 +0000 (16:41 -0500)]
ac3enc: add num_rematrixing_bands to AC3EncodeContext and use it instead of the hardcoded value.
Currently it is always 4, but this change will allow it to be adjusted when
bandwidth-related features are added such as channel coupling, enhanced
channel coupling, and spectral extension.
(cherry picked from commit 53e35fd340d75c40395e4446b76a72bb1962899b)
Justin Ruggles [Fri, 4 Mar 2011 21:41:49 +0000 (16:41 -0500)]
ac3enc: add num_rematrixing_bands to AC3EncodeContext and use it instead of the hardcoded value.
Currently it is always 4, but this change will allow it to be adjusted when
bandwidth-related features are added such as channel coupling, enhanced
channel coupling, and spectral extension.
Mans Rullgard [Wed, 2 Mar 2011 13:08:15 +0000 (13:08 +0000)]
threads: allow thread count of zero
This moves setting the thread count to a minimum of 1 to
frame_thread_init(), allowing a value of zero to propagate
through to the codec if frame threading is not used. This
makes auto-threads work in libx264.
Martin Storsjö [Sat, 26 Feb 2011 23:02:32 +0000 (01:02 +0200)]
aviobuf: Write new data at s->buf_end in fill_buffer
In most cases, s->buf_ptr will be equal to s->buf_end when
fill_buffer is called, but this may not always be the case, if
we're seeking forward by reading (permitted by the short seek
threshold).
If fill_buffer is writing to s->buf_ptr instead of s->buf_end (when
they aren't equal and s->buf_ptr is ahead of s->buffer), the data
between s->buf_ptr and s->buf_end is overwritten, leading to
inconsistent buffer content. This could return incorrect data if
later seeking back into the area before the current s->buf_ptr.
projects / ffmpeg / log