Optimized memset with mmi in following functions:
1. ff_h264_add_pixels4_8_mmi.
2. ff_h264_idct_add_8_mmi.
3. ff_h264_idct8_add_8_mmi.
This optimization improved h264 decoding performance about 1.3%(tested on loongson 3A3000).
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Reoptimize function ff_put_h264_chroma_mc8_mmi and ff_avg_h264_chroma_mc8_mmi.
Performance of h264 decoding improved about 5%(from 69fps to 73fps, tested on loongson 3A3000).
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Performance of mpeg4 decoding improved about 23%(from 128fps to 158fps, tested on loongson 3A3000).
Reoptimized following functions with mmi.
1. ff_simple_idct_put_8_mmi
2. ff_simple_idct_add_8_mmi
3. ff_simple_idct_8_mmi
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes the following warnings:
libavcodec/v4l2_m2m_enc.c:51:12: warning: missing braces around initializer
libavcodec/v4l2_m2m_enc.c:71:12: warning: missing braces around initializer
Just remove some dead variable assignments, unneeded variables and
change the FFMAX order to something more readable. Still identical.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Much simpler than regular decoding, does allow for 5.1 and 7.1
streams to be decoded without desync.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Unlike the range, the gradient start value does not have to be lower
than the end value.
Does allow more files to be correctly decoded without errors.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Encoder frame_number may be double-counted if some frames are cached and then flushed.
Take qsv encoder (some frames are cached firsty for asynchronism) as example,
./ffmpeg -loglevel verbose -hwaccel qsv -c:v h264_qsv -i in.mp4 -vframes 100 -c:v h264_qsv out.mp4
frame_number passed to encoder is double-counted and larger than the accurate value.
Libx264 encoding with B frames can also reproduce it.
Signed-off-by: Zhong Li <zhong.li@intel.com>
Fixes: signed integer overflow: -19818 + -2147483648 cannot be represented in type 'int'
Fixes: 9545/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SNOW_fuzzer-4928769537081344
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Packets of sizes 80ms, 100ms and 120ms are allowed since libopus 1.2
Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This reverts commit 7e0df5910e.
"complete frames" containers, even if they don't need to assemble
packets, still depended on this code for proper packet duration and
timestamp generation.
remove redundant av_init_packet after av_packet_unref.
av_packet_unref have call av_init_packet and reset the packet size.
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
fix the waring: libavcodec/libkvazaar.c:210:27: warning: passing argument 3 of ‘av_image_copy’ from incompatible pointer type [-Wincompatible-pointer-types]
frame->data, frame->linesize,
^~~~~
In file included from libavcodec/libkvazaar.c:31:0:
./libavutil/imgutils.h:119:6: note: expected ‘const uint8_t ** {aka const unsigned char **}’ but argument is of type ‘uint8_t * const* {aka unsigned char * const*}’
void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
Add fix a memory leak issue as James's comments.
V2: use a local pict_type since coded_frame is deprecated.
Signed-off-by: Zhong Li <zhong.li@intel.com>
