From: Michael Niedermayer <michael@niedermayer.cc> To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> Subject: [FFmpeg-devel] [PATCH 5/9] avcodec/vlc: Pass VLC_MULTI_ELEM directly not by pointer Date: Sun, 22 Oct 2023 23:51:09 +0200 Message-ID: <20231022215113.3469-5-michael@niedermayer.cc> (raw) In-Reply-To: <20231022215113.3469-1-michael@niedermayer.cc> This makes the code more testable as uninitialized fields are 0 and not random values from the last call Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/vlc.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/libavcodec/vlc.c b/libavcodec/vlc.c index 9b7a42f79a3..4adec2da705 100644 --- a/libavcodec/vlc.c +++ b/libavcodec/vlc.c @@ -356,7 +356,7 @@ static void add_level(VLC_MULTI_ELEM *table, const int is16bit, uint32_t curcode, int curlen, int curlimit, int curlevel, const int minlen, const int max, - unsigned* levelcnt, VLC_MULTI_ELEM *info) + unsigned* levelcnt, VLC_MULTI_ELEM info) { int max_symbols = VLC_MULTI_MAX_SYMBOLS >> is16bit; for (int i = num-1; i >= max; i--) { @@ -372,16 +372,16 @@ static void add_level(VLC_MULTI_ELEM *table, const int is16bit, code = curcode + (buf[t].code >> curlen); newlimit = curlimit - l; l += curlen; - if (is16bit) AV_WN16(info->val+2*curlevel, sym); - else info->val[curlevel] = sym&0xFF; + if (is16bit) AV_WN16(info.val+2*curlevel, sym); + else info.val[curlevel] = sym&0xFF; if (curlevel) { // let's not add single entries uint32_t val = code >> (32 - numbits); uint32_t nb = val + (1U << (numbits - l)); - info->len = l; - info->num = curlevel+1; + info.len = l; + info.num = curlevel+1; for (; val < nb; val++) - AV_COPY64(table+val, info); + AV_COPY64(table+val, &info); levelcnt[curlevel-1]++; } @@ -435,7 +435,7 @@ static int vlc_multi_gen(VLC_MULTI_ELEM *table, const VLC *single, } add_level(table, is16bit, nb_codes, numbits, buf, - 0, 0, FFMIN(maxbits, numbits), 0, minbits, max, count, &info); + 0, 0, FFMIN(maxbits, numbits), 0, minbits, max, count, info); av_log(logctx, AV_LOG_DEBUG, "Joint: %d/%d/%d/%d/%d codes min=%ubits max=%u\n", count[0], count[1], count[2], count[3], count[4], minbits, max); -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
next prev parent reply other threads:[~2023-10-22 21:51 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-10-22 21:51 [FFmpeg-devel] [PATCH 1/9] avcodec/vlc: merge lost 16bit end of array check Michael Niedermayer 2023-10-22 21:51 ` [FFmpeg-devel] [PATCH 2/9] avcodec/vlc: dont pass nb_elems into multi vlc code Michael Niedermayer 2023-10-22 21:51 ` [FFmpeg-devel] [PATCH 3/9] avcodec/vlc: Skip subtable entries in multi VLC Michael Niedermayer 2023-10-22 21:51 ` [FFmpeg-devel] [PATCH 4/9] avcodec/vlc: Replace mysterious max computation code in multi vlc Michael Niedermayer 2023-10-22 21:51 ` Michael Niedermayer [this message] 2023-10-23 6:10 ` [FFmpeg-devel] [PATCH 5/9] avcodec/vlc: Pass VLC_MULTI_ELEM directly not by pointer Leo Izen 2023-10-23 16:04 ` Michael Niedermayer 2023-10-24 9:54 ` Leo Izen 2023-10-31 22:22 ` Michael Niedermayer 2023-10-22 21:51 ` [FFmpeg-devel] [PATCH 6/9] avcodec/vlc: Remove mysterious jitter loop in multi VLC Michael Niedermayer 2023-10-22 21:51 ` [FFmpeg-devel] [PATCH 7/9] Revert "avcodec/vlc: add correct upper limit for recursive function" Michael Niedermayer 2023-10-22 21:51 ` [FFmpeg-devel] [PATCH 8/9] Revert "avcodec/vlc: fix off by one in limit check for multi" Michael Niedermayer 2023-10-22 21:51 ` [FFmpeg-devel] [PATCH 9/9] avcodec/vlc: simplify min/maxbits in multi VLC Michael Niedermayer 2023-10-22 23:02 ` [FFmpeg-devel] [PATCH 1/9] avcodec/vlc: merge lost 16bit end of array check Paul B Mahol 2023-10-23 16:05 ` Michael Niedermayer 2023-10-26 22:35 ` Michael Niedermayer
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