Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
 help / color / mirror / Atom feed
From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Subject: [FFmpeg-devel] [PATCH 26/61] avcodec/wnv1: Avoid unnecessary VLC structure
Date: Wed, 27 Sep 2023 00:16:57 +0200
Message-ID: <GV1P250MB0737866D206CE902A1911F988FC3A@GV1P250MB0737.EURP250.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <GV1P250MB073754E215A199E7219CC13A8FC3A@GV1P250MB0737.EURP250.PROD.OUTLOOK.COM>

Everything besides VLC.table is basically write-only
and even VLC.table can be removed by accessing the
underlying table directly.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavcodec/wnv1.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/libavcodec/wnv1.c b/libavcodec/wnv1.c
index ffc9174ab2..0e8dae598f 100644
--- a/libavcodec/wnv1.c
+++ b/libavcodec/wnv1.c
@@ -39,12 +39,12 @@ static const uint8_t code_tab[16][2] = {
 };
 
 #define CODE_VLC_BITS 9
-static VLC code_vlc;
+static VLCElem code_vlc[1 << CODE_VLC_BITS];
 
 /* returns modified base_value */
 static inline int wnv1_get_code(GetBitContext *gb, int shift, int base_value)
 {
-    int v = get_vlc2(gb, code_vlc.table, CODE_VLC_BITS, 1);
+    int v = get_vlc2(gb, code_vlc, CODE_VLC_BITS, 1);
 
     if (v == 8)
         return get_bits(gb, 8 - shift) << shift;
@@ -115,10 +115,10 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *p,
 
 static av_cold void wnv1_init_static(void)
 {
-    VLC_INIT_STATIC_FROM_LENGTHS(&code_vlc, CODE_VLC_BITS, 16,
-                                 &code_tab[0][1], 2,
-                                 &code_tab[0][0], 2, 1,
-                                 -7, VLC_INIT_OUTPUT_LE, 1 << CODE_VLC_BITS);
+    VLC_INIT_STATIC_TABLE_FROM_LENGTHS(code_vlc, CODE_VLC_BITS, 16,
+                                       &code_tab[0][1], 2,
+                                       &code_tab[0][0], 2, 1,
+                                       -7, VLC_INIT_OUTPUT_LE);
 }
 
 static av_cold int decode_init(AVCodecContext *avctx)
-- 
2.34.1

_______________________________________________
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".

  parent reply	other threads:[~2023-09-26 22:20 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-26 22:12 [FFmpeg-devel] [PATCH 01/61] avcodec/vlc: Add functions to init static VLCElem[] without VLC Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 02/61] avcodec/vp3: Make VLC tables static where possible Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 03/61] avcodec/vp3: Increase some VLC tables Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 04/61] avcodec/h264_cavlc: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 05/61] avcodec/h264_cavlc: Avoid indirection for coefficient table VLCs Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 06/61] avcodec/h264_cavlc: Remove code duplication Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 07/61] avcodec/asvdec: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 08/61] avcodec/faxcompr: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 09/61] avcodec/h261dec: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 10/61] avcodec/ituh263dec: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 11/61] avcodec/msmpeg4_vc1_data: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 12/61] avcodec/svq1dec: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 13/61] avcodec/svq1dec: Increase size of VLC Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 14/61] avcodec/rv40: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 15/61] avcodec/mpc7: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 16/61] avcodec/intrax8: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 17/61] avcodec/clearvideo: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 18/61] avcodec/atrac9dec: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 19/61] avcodec/imc: " Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 20/61] avcodec/refstruct: Add simple API for refcounted objects Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 21/61] avcodec/vp3: Share coefficient VLCs between threads Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 22/61] avcodec/vp3: Avoid complete VLC struct, only use VLCElem* Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 23/61] avcodec/vp3: Reindent after the previous commits Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 24/61] avcodec/rv34: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 25/61] avcodec/rv34: Constify pointer to static object Andreas Rheinhardt
2023-09-26 22:16 ` Andreas Rheinhardt [this message]
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 27/61] avcodec/mv30: Avoid unnecessary VLC structure Andreas Rheinhardt
2023-09-26 22:16 ` [FFmpeg-devel] [PATCH 28/61] avcodec/vqcdec: " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 29/61] avcodec/mobiclip: " Andreas Rheinhardt
2023-09-27 23:20   ` Michael Niedermayer
2023-09-27 23:44     ` Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 30/61] avcodec/mimic: " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 31/61] avcodec/imm4: " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 32/61] avcodec/lagarith: " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 33/61] avcodec/speedhqdec: " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 34/61] avcodec/vc1: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 35/61] avcodec/4xm: Avoid unnecessary " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 36/61] avcodec/indeo2: Avoid unnecessary VLC structure Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 37/61] avcodec/mss4: Partially inline max_depth and nb_bits of VLC Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 38/61] avcodec/mpeg4videodec: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 39/61] avcodec/msmpeg4dec: " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 40/61] avcodec/aacps: Remove unused AVCodecContext* parameter from ff_ps_apply Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 41/61] avcodec/aacps: Pass logctx as void* instead of AVCodecContext* Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 42/61] avcodec/aacdectab: Deduplicate common decoder tables Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 43/61] avcodec/aacdec_template: Deduplicate VLCs Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 44/61] avcodec/aacdec_template: Don't init unused table for fixed-point decoder Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 45/61] avcodec/aactab: Improve included headers Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 46/61] avcodec/aacdec_common: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 47/61] avcodec/aacsbr_template: Deduplicate VLCs Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 48/61] avcodec/aacdec_common: Avoid superfluous VLC structures for SBR VLCs Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 49/61] avcodec/aacdec_common: Switch to ff_vlc_init_tables_from_lengths() Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 50/61] avcodec/aacdec_common: Combine huffman tabs Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 51/61] avcodec/aacdec_common: Apply offset for SBR VLCs during init Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 52/61] avcodec/aacps: Move initializing common stuff to aacdec_common.c Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 53/61] avcodec/aacps_common: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 54/61] avcodec/aacps_common: Switch to ff_vlc_init_tables_from_lengths() Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 55/61] avcodec/aacps_common: Combine huffman tabels Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 56/61] avcodec/aacps_common: Apply offset for VLCs during init Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 57/61] avcodec/mpegaudiodec_common: Avoid superfluous VLC structures Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 58/61] avcodec/mpeg12: Avoid unnecessary " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 59/61] avcodec/wmaprodec: Avoid superfluous " Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 60/61] avcodec/wmavoice: Avoid unnecessary VLC structure Andreas Rheinhardt
2023-09-26 22:17 ` [FFmpeg-devel] [PATCH 61/61] avcodec/vlc: Remove unused macros Andreas Rheinhardt
2023-10-30 23:08 ` [FFmpeg-devel] [PATCH 01/61] avcodec/vlc: Add functions to init static VLCElem[] without VLC Andreas Rheinhardt

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=GV1P250MB0737866D206CE902A1911F988FC3A@GV1P250MB0737.EURP250.PROD.OUTLOOK.COM \
    --to=andreas.rheinhardt@outlook.com \
    --cc=ffmpeg-devel@ffmpeg.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://master.gitmailbox.com/ffmpegdev/0 ffmpegdev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 ffmpegdev ffmpegdev/ https://master.gitmailbox.com/ffmpegdev \
		ffmpegdev@gitmailbox.com
	public-inbox-index ffmpegdev

Example config snippet for mirrors.


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git