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softworkz
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Jul 4, 2022
davs2_decoder_close doesn't free those on the fly frames which
don't get output yet. It's a design bug, but easy to workaround.
Before the patch:
Direct leak of 1198606 byte(s) in 2 object(s) allocated from:
#0 0x563af5e1e5f0 in malloc (ffmpeg+0x6675f0)
#1 0x563af9765ef3 in davs2_malloc davs2/source/common/common.h:1240
#2 0x563af9765ef3 in davs2_alloc_picture davs2/source/common/header.cc:815
Indirect leak of 3595818 byte(s) in 6 object(s) allocated from:
#0 0x563af5e1e5f0 in malloc (ffmpeg+0x6675f0)
#1 0x563af9765ef3 in davs2_malloc davs2/source/common/common.h:1240
#2 0x563af9765ef3 in davs2_alloc_picture davs2/source/common/header.cc:815
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
softworkz
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Dec 21, 2023
In close_output(), a dummy frame is created with format NONE passed to enc_open(), which isn't prepared for it. The NULL pointer dereference happened at av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth. When fgt.graph is NULL, skip fg_output_frame() since there is nothing to output. frame #0: 0x0000005555bc34a4 ffmpeg_g`enc_open(opaque=0xb400007efe2db690, frame=0xb400007efe2d9f70) at ffmpeg_enc.c:235:44 frame #1: 0x0000005555bef250 ffmpeg_g`enc_open(sch=0xb400007dde2d4090, enc=0xb400007e4e2daad0, frame=0xb400007efe2d9f70) at ffmpeg_sched.c:1462:11 frame #2: 0x0000005555bee094 ffmpeg_g`send_to_enc(sch=0xb400007dde2d4090, enc=0xb400007e4e2daad0, frame=0xb400007efe2d9f70) at ffmpeg_sched.c:1571:19 frame #3: 0x0000005555bee01c ffmpeg_g`sch_filter_send(sch=0xb400007dde2d4090, fg_idx=0, out_idx=0, frame=0xb400007efe2d9f70) at ffmpeg_sched.c:2154:12 frame #4: 0x0000005555bcf124 ffmpeg_g`close_output(ofp=0xb400007e4e2d85b0, fgt=0x0000007d1790eb08) at ffmpeg_filter.c:2225:15 frame #5: 0x0000005555bcb000 ffmpeg_g`fg_output_frame(ofp=0xb400007e4e2d85b0, fgt=0x0000007d1790eb08, frame=0x0000000000000000) at ffmpeg_filter.c:2317:16 frame #6: 0x0000005555bc7e48 ffmpeg_g`filter_thread(arg=0xb400007eae2ce7a0) at ffmpeg_filter.c:2836:15 frame #7: 0x0000005555bee568 ffmpeg_g`task_wrapper(arg=0xb400007d8e2db478) at ffmpeg_sched.c:2200:21 Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
softworkz
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Mar 12, 2024
The formal title of the muxer according to the specification is "RCWT (Raw Captions With Time)", so canonize this in the long name of the codec and docs. In the documentation section, point #2 was wrong: ccextractor extracts the Closed Captions data and stores normalized bits similarly to this muxer. Signed-off-by: Marth64 <marth64@proxyid.net>
softworkz
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Jan 17, 2025
Explicitly use ldur for unaligned offsets; newer versions of
armasm64 implicitly convert ldr to ldur as necessary, but older
versions require it explicitly written out.
This fixes these build errors:
ffmpeg\libavcodec\aarch64\vvc\inter.o.asm(2039) :
error A2518: operand 2: Memory offset must be aligned
ldr s5, [x1, #1]
ffmpeg\libavcodec\aarch64\vvc\inter.o.asm(2250) :
error A2518: operand 2: Memory offset must be aligned
ldr d7, [x1, #2]
Signed-off-by: Martin Storsjö <martin@martin.st>
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