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42 Commits

Author SHA1 Message Date
Andreas Rheinhardt
56e9e0273a avcodec/encode: Always use intermediate buffer in ff_alloc_packet2() 
Up until now, ff_alloc_packet2() has a min_size parameter:
It is supposed to be a lower bound on the final size of the packet
to allocate. If it is not too far from the upper bound (namely,
if it is at least half the upper bound), then ff_alloc_packet2()
already allocates the final, already refcounted packet; if it is
not, then the packet is not refcounted and its data only points to
a buffer owned by the AVCodecContext (in this case, the packet will
be made refcounted in encode_simple_internal() in libavcodec/encode.c).
The goal of this was to avoid data copies and intermediate buffers
if one has a precise lower bound.

Yet those encoders for which precise lower bounds exist have recently
been switched to ff_get_encode_buffer() (which automatically allocates
final buffers), leaving only two encoders to actually set the min_size
to something else than zero (namely aliaspixenc and hapenc). Both of
these encoders use a very low lower bound that is not helpful in any
nontrivial case.

This commit therefore removes the min_size parameter as well as the
codepath in ff_alloc_packet2() for the allocation of final buffers.
Furthermore, the function has been renamed to ff_alloc_packet() and
moved to encode.h alongside ff_get_encode_buffer().

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2021-06-08 12:52:50 +02:00
Andreas Rheinhardt
856c1402fe avcodec/flashsv2enc: Mark encoder as init-threadsafe 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-05-02 03:14:00 +02:00
Andreas Rheinhardt
a247ac640d avcodec: Constify AVCodecs 
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2021-04-27 10:43:15 -03:00
Andreas Rheinhardt
b7b73e83e3 avcodec/flashsv2enc: Fix undefined NULL + 0 
Affected the vsynth*-flashsv2 FATE-tests.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-04-01 14:52:43 +02:00
Andreas Rheinhardt
9267e2ff0d avcodec/flashsv2enc: Fix use of uninitialized value 
Before 257a83b969157eb76c18158a4e503e908d8b1125, certain buffers were
zero-allocated in the init function and only reallocated lateron if they
turned out to be too small; now they are only allocated during init,
leading to use-of-uninitialized values lateron. The same could happen
before if the dimensions are big enough so that the buffers would be
reallocated, as the new part of the reallocated buffer would not be
zeroed (happened for 960x960). So always zero the buffers in the
function designed to init them.

Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-28 13:59:00 +01:00
Marton Balint
257a83b969 avcodec/flashsv2enc: factorize updating block dimensions 
The patch changes the init function to initialize block dimensions to fixed
64x64 instead of the previously used image width/height based value.

This should not cause any actual change in behaviour because block dimensions
are recalculated on every keyframe in optimum_block_width() and
optimum_block_height() functions and in the current code the result is always
64x64 regardless of the image dimensions used.

Signed-off-by: Marton Balint <cus@passwd.hu>
 2021-01-23 20:13:39 +01:00
Andreas Rheinhardt
b14c42aa2a avcodec/flashsv2enc: Return better error codes 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-09-19 18:45:30 +02:00
Andreas Rheinhardt
42ed9707b5 avcodec/flashsv2enc: Cleanup generically after init failure 
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-09-19 18:45:03 +02:00
Andreas Rheinhardt
319dbcf440 avcodec/flashsv2enc: Check allocations for success before usage 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-09-19 18:39:58 +02:00
Ganesh Ajjanagadde
0fe1c50e50 all: do standards compliant absdiff computation 
This resolves implementation defined behavior, and also silences -Wabsolute-value in clang 3.5+.
Moreover, the generated asm is identical to before modulo nop padding.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-09-18 22:42:38 +02:00
Michael Niedermayer
29d147c94d Merge commit '059a934806d61f7af9ab3fd9f74994b838ea5eba' 
* commit '059a934806d61f7af9ab3fd9f74994b838ea5eba':
  lavc: Consistently prefix input buffer defines

Conflicts:
	doc/examples/decoding_encoding.c
	libavcodec/4xm.c
	libavcodec/aac_adtstoasc_bsf.c
	libavcodec/aacdec.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.h
	libavcodec/asvenc.c
	libavcodec/avcodec.h
	libavcodec/avpacket.c
	libavcodec/dvdec.c
	libavcodec/ffv1enc.c
	libavcodec/g2meet.c
	libavcodec/gif.c
	libavcodec/h264.c
	libavcodec/h264_mp4toannexb_bsf.c
	libavcodec/huffyuvdec.c
	libavcodec/huffyuvenc.c
	libavcodec/jpeglsenc.c
	libavcodec/libxvid.c
	libavcodec/mdec.c
	libavcodec/motionpixels.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/noise_bsf.c
	libavcodec/nuv.c
	libavcodec/nvenc.c
	libavcodec/options.c
	libavcodec/parser.c
	libavcodec/pngenc.c
	libavcodec/proresenc_kostya.c
	libavcodec/qsvdec.c
	libavcodec/svq1enc.c
	libavcodec/tiffenc.c
	libavcodec/truemotion2.c
	libavcodec/utils.c
	libavcodec/utvideoenc.c
	libavcodec/vc1dec.c
	libavcodec/wmalosslessdec.c
	libavformat/adxdec.c
	libavformat/aiffdec.c
	libavformat/apc.c
	libavformat/apetag.c
	libavformat/avidec.c
	libavformat/bink.c
	libavformat/cafdec.c
	libavformat/flvdec.c
	libavformat/id3v2.c
	libavformat/isom.c
	libavformat/matroskadec.c
	libavformat/mov.c
	libavformat/mpc.c
	libavformat/mpc8.c
	libavformat/mpegts.c
	libavformat/mvi.c
	libavformat/mxfdec.c
	libavformat/mxg.c
	libavformat/nutdec.c
	libavformat/oggdec.c
	libavformat/oggparsecelt.c
	libavformat/oggparseflac.c
	libavformat/oggparseopus.c
	libavformat/oggparsespeex.c
	libavformat/omadec.c
	libavformat/rawdec.c
	libavformat/riffdec.c
	libavformat/rl2.c
	libavformat/rmdec.c
	libavformat/rtpdec_latm.c
	libavformat/rtpdec_mpeg4.c
	libavformat/rtpdec_qdm2.c
	libavformat/rtpdec_svq3.c
	libavformat/sierravmd.c
	libavformat/smacker.c
	libavformat/smush.c
	libavformat/spdifenc.c
	libavformat/takdec.c
	libavformat/tta.c
	libavformat/utils.c
	libavformat/vqf.c
	libavformat/westwood_vqa.c
	libavformat/xmv.c
	libavformat/xwma.c
	libavformat/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 23:15:19 +02:00
Michael Niedermayer
e36db49b7b avcodec: Add a min size parameter to ff_alloc_packet2() 
This parameter can be used to inform the allocation code about how much
downsizing might occur, and can be used to optimize how to allocate the
packet

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 19:57:52 +02:00
Dyami Caliri
50833c9f7b Fix buffer_size argument to init_put_bits() in multiple encoders. 
Several encoders were multiplying the buffer size by 8, in order to get
a bit size. However, the buffer_size argument is for the byte size of
the buffer. We had experienced crashes encoding prores (Anatoliy) at
size 4096x4096.
 2015-02-26 20:14:00 +01:00
Michael Niedermayer
71bd6ea0fa avcodec/flashsv2enc: use av_realloc_array() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-15 23:00:52 +01:00
Carl Eugen Hoyos
3428865163 lavc/flashsv2enc: Fix encoding resolution error message. 2014-11-13 22:13:33 +01:00
Michael Niedermayer
87961a8a50 avcodec/flashsv2enc: fix "unused variable" warnings 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-28 15:50:35 +02:00
Michael Niedermayer
b8f4410ff6 avcodec/flashsv2enc: drop dependancy on sizeof(AVFrame) 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-17 16:58:06 +01:00
Clément Bœsch
b46f19100b cosmetics: group remaining .name and .long_name. 
See b2bed9325.
 2013-10-04 13:33:20 +00:00
Michael Niedermayer
ac627b3d38 Merge commit '716d413c13981da15323c7a3821860536eefdbbb' 
* commit '716d413c13981da15323c7a3821860536eefdbbb':
  Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat

Conflicts:
	doc/examples/muxing.c
	ffmpeg.h
	ffmpeg_filter.c
	ffmpeg_opt.c
	ffplay.c
	ffprobe.c
	libavcodec/8bps.c
	libavcodec/aasc.c
	libavcodec/aura.c
	libavcodec/avcodec.h
	libavcodec/avs.c
	libavcodec/bfi.c
	libavcodec/bmp.c
	libavcodec/bmpenc.c
	libavcodec/c93.c
	libavcodec/cscd.c
	libavcodec/cyuv.c
	libavcodec/dpx.c
	libavcodec/dpxenc.c
	libavcodec/eatgv.c
	libavcodec/escape124.c
	libavcodec/ffv1.c
	libavcodec/flashsv.c
	libavcodec/fraps.c
	libavcodec/h264.c
	libavcodec/huffyuv.c
	libavcodec/iff.c
	libavcodec/imgconvert.c
	libavcodec/indeo3.c
	libavcodec/kmvc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libopenjpegenc.c
	libavcodec/libx264.c
	libavcodec/ljpegenc.c
	libavcodec/mjpegdec.c
	libavcodec/mjpegenc.c
	libavcodec/motionpixels.c
	libavcodec/mpeg12.c
	libavcodec/mpeg12enc.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo_enc.c
	libavcodec/pamenc.c
	libavcodec/pcxenc.c
	libavcodec/pgssubdec.c
	libavcodec/pngdec.c
	libavcodec/pngenc.c
	libavcodec/pnm.c
	libavcodec/pnmdec.c
	libavcodec/pnmenc.c
	libavcodec/ptx.c
	libavcodec/qdrw.c
	libavcodec/qpeg.c
	libavcodec/qtrleenc.c
	libavcodec/raw.c
	libavcodec/rawdec.c
	libavcodec/rl2.c
	libavcodec/sgidec.c
	libavcodec/sgienc.c
	libavcodec/snowdec.c
	libavcodec/snowenc.c
	libavcodec/sunrast.c
	libavcodec/targa.c
	libavcodec/targaenc.c
	libavcodec/tiff.c
	libavcodec/tiffenc.c
	libavcodec/tmv.c
	libavcodec/truemotion2.c
	libavcodec/utils.c
	libavcodec/vb.c
	libavcodec/vp3.c
	libavcodec/wnv1.c
	libavcodec/xl.c
	libavcodec/xwddec.c
	libavcodec/xwdenc.c
	libavcodec/yop.c
	libavdevice/v4l2.c
	libavdevice/x11grab.c
	libavfilter/avfilter.c
	libavfilter/avfilter.h
	libavfilter/buffersrc.c
	libavfilter/drawutils.c
	libavfilter/formats.c
	libavfilter/src_movie.c
	libavfilter/vf_ass.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_fade.c
	libavfilter/vf_format.c
	libavfilter/vf_hflip.c
	libavfilter/vf_lut.c
	libavfilter/vf_overlay.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavfilter/vf_transpose.c
	libavfilter/vf_yadif.c
	libavfilter/video.c
	libavfilter/vsrc_testsrc.c
	libavformat/movenc.c
	libavformat/mxf.h
	libavformat/utils.c
	libavformat/yuv4mpeg.c
	libavutil/imgutils.c
	libavutil/pixdesc.c
	libswscale/input.c
	libswscale/output.c
	libswscale/swscale_internal.h
	libswscale/swscale_unscaled.c
	libswscale/utils.c
	libswscale/x86/swscale_template.c
	libswscale/x86/yuv2rgb.c
	libswscale/x86/yuv2rgb_template.c
	libswscale/yuv2rgb.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-10-08 21:06:57 +02:00
Daniel Verkamp
124f0b2f46 flashsv2enc: only encode diff blocks when needed 
A flashsv2 block may have a "diff block" to indicate which scan lines of
the block are actually encoded.  However, this diff block need not be
used when the entire block is coded.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-08 05:36:34 +02:00
Michael Niedermayer
097c64ffcb flashsv2enc: remove experimental flag, the encoder seems working now 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-07 22:53:21 +02:00
Michael Niedermayer
dbb9117d18 flashsv2enc: move blockbuffer realloc to reconfigure_at_keyframe() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-07 21:46:34 +02:00
Michael Niedermayer
9b6467fd46 flashv2enc: reallocate not only on block count changes but on dimension changes. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-07 21:46:34 +02:00
Derek Buitenhuis
3174987b42 flashsv2enc: Replace a VLA with a heap alloc 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-07 21:46:34 +02:00
Michael Niedermayer
9b326fc261 flashsv2enc: fix prev-Z-prime encoding 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-07 21:46:34 +02:00
Michael Niedermayer
7a72695c05 Merge commit '36ef5369ee9b336febc2c270f8718cec4476cb85' 
* commit '36ef5369ee9b336febc2c270f8718cec4476cb85':
  Replace all CODEC_ID_* with AV_CODEC_ID_*
  lavc: add AV prefix to codec ids.

Conflicts:
	doc/APIchanges
	doc/examples/decoding_encoding.c
	doc/examples/muxing.c
	ffmpeg.c
	ffprobe.c
	ffserver.c
	libavcodec/8svx.c
	libavcodec/avcodec.h
	libavcodec/dnxhd_parser.c
	libavcodec/dvdsubdec.c
	libavcodec/error_resilience.c
	libavcodec/h263dec.c
	libavcodec/libvorbisenc.c
	libavcodec/mjpeg_parser.c
	libavcodec/mjpegenc.c
	libavcodec/mpeg12.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/pcm.c
	libavcodec/r210dec.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/version.h
	libavdevice/alsa-audio-dec.c
	libavdevice/bktr.c
	libavdevice/v4l2.c
	libavformat/asfdec.c
	libavformat/asfenc.c
	libavformat/avformat.h
	libavformat/avidec.c
	libavformat/caf.c
	libavformat/electronicarts.c
	libavformat/flacdec.c
	libavformat/flvdec.c
	libavformat/flvenc.c
	libavformat/framecrcenc.c
	libavformat/img2.c
	libavformat/img2dec.c
	libavformat/img2enc.c
	libavformat/ipmovie.c
	libavformat/isom.c
	libavformat/matroska.c
	libavformat/matroskadec.c
	libavformat/matroskaenc.c
	libavformat/mov.c
	libavformat/movenc.c
	libavformat/mp3dec.c
	libavformat/mpeg.c
	libavformat/mpegts.c
	libavformat/mxf.c
	libavformat/mxfdec.c
	libavformat/mxfenc.c
	libavformat/nsvdec.c
	libavformat/nut.c
	libavformat/oggenc.c
	libavformat/pmpdec.c
	libavformat/rawdec.c
	libavformat/rawenc.c
	libavformat/riff.c
	libavformat/sdp.c
	libavformat/utils.c
	libavformat/vocenc.c
	libavformat/wtv.c
	libavformat/xmv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-08-07 22:45:46 +02:00
Paul B Mahol
1b129c2abc flashsv2enc: align codec declarations 
While here constify enums for .pix_fmts.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2012-06-14 15:48:43 +00:00
Carl Eugen Hoyos
db11fc5392 Fix flashsv2 encoder error message. 2012-05-12 13:11:56 +02:00
Michael Niedermayer
2a37ac042f flashsv2enc: fix division by zero 
Fixes other half of Ticket1105

Found-by: ami_stuff
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-05-12 12:07:02 +02:00
Michael Niedermayer
40d8c89cb6 flashsvenc: fix image sizes below 192x192 
Fixes half of Ticket1105

Found-by: ami_stuff
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-05-12 12:06:37 +02:00
Paul B Mahol
ae2c33b0c2 cosmetics: remove superfluous curly brackets 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-03-23 03:09:07 +01:00
Michael Niedermayer
3f35b66512 flashv2enc: switch to ff_alloc_packet2() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-03-22 19:03:19 +01:00
Michael Niedermayer
131698af55 flashsv2enc: switch to encode2() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-02-24 03:30:42 +01:00
Paul B Mahol
7099f36578 lavc: replace rest of deprecated FF_*_TYPE with AV_PICTURE_TYPE_* 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-01-03 03:25:22 +01:00
Paul B Mahol
ba10207bbe Use more designated initializers. 
Also remove some pointless NULL/0 assigments.

C++ code must be left as it is because named struct
initializers are not supported by C++ standard.
 2011-12-30 20:00:53 +01:00
Clément Bœsch
1912c215e0 doxygen: remove a few @file parameters. 
It is not mandatory and prevents breakage on rename.
 2011-10-04 08:04:17 +02:00
Michael Niedermayer
4517ba092e flashsv2enc:fix segfault 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-04-29 18:31:17 +02:00
Michael Niedermayer
f0f3425311 flashsv2enc: mark encoder experimental 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-04-29 03:06:06 +02:00
Michael Niedermayer
c83a528193 flashsv2enc: remove useless casts 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-04-29 02:43:12 +02:00
Michael Niedermayer
ba9c4db59a flashsv2enc: use av_freep() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-04-29 02:41:13 +02:00
Michael Niedermayer
f6a5edb64c flashsv2enc: remove useless if() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-04-29 02:40:22 +02:00
Joshua Warner
3f6dc4a130 encoder for adobe's flash ScreenVideo2 codec 2011-04-29 02:35:59 +02:00