[vlc-devel] [PATCH 08/13] Replace decoder_sys_t* by void*

Romain Vimont rom1v at videolabs.io
Tue Apr 24 11:18:26 CEST 2018


See #17078
---
 include/vlc_codec.h              |  2 +-
 modules/codec/avcodec/subtitle.c |  4 +++-
 modules/codec/avcodec/video.c    | 19 +++++++++++--------
 modules/codec/cc.c               |  3 ++-
 modules/codec/crystalhd.c        | 11 ++++++-----
 modules/codec/cvdsub.c           |  4 +++-
 modules/codec/flac.c             | 13 +++++++------
 modules/codec/kate.c             |  9 ++++++---
 modules/codec/oggspots.c         |  3 ++-
 modules/codec/opus.c             |  2 +-
 modules/codec/png.c              |  5 +++--
 modules/codec/rawvideo.c         |  2 +-
 modules/codec/scte18.c           |  4 +++-
 modules/codec/speex.c            | 11 ++++++-----
 modules/codec/spudec/spudec.c    |  5 ++++-
 modules/codec/stl.c              | 10 ++++++----
 modules/codec/textst.c           | 15 +++++++++------
 modules/codec/theora.c           | 14 +++++++++-----
 modules/codec/ttml/substtml.c    |  5 +++--
 modules/codec/vorbis.c           |  9 ++++++---
 modules/codec/webvtt/subsvtt.c   | 24 +++++++++++++++---------
 modules/packetizer/avparser.c    |  9 +++++----
 modules/packetizer/copy.c        | 19 +++++++++++--------
 modules/packetizer/h264.c        |  5 +++--
 modules/packetizer/hevc.c        |  5 +++--
 modules/packetizer/mpeg4audio.c  |  5 +++--
 modules/packetizer/mpeg4video.c  | 12 ++++++------
 modules/packetizer/mpegaudio.c   |  2 +-
 28 files changed, 139 insertions(+), 92 deletions(-)

diff --git a/include/vlc_codec.h b/include/vlc_codec.h
index a4842a5f3e..0ba09d736d 100644
--- a/include/vlc_codec.h
+++ b/include/vlc_codec.h
@@ -56,7 +56,7 @@ struct decoder_t
 
     /* Module properties */
     module_t *          p_module;
-    decoder_sys_t *     p_sys;
+    void               *p_sys;
 
     /* Input format ie from demuxer (XXX: a lot of field could be invalid) */
     es_format_t         fmt_in;
diff --git a/modules/codec/avcodec/subtitle.c b/modules/codec/avcodec/subtitle.c
index b03dd648d0..2623a2c9b2 100644
--- a/modules/codec/avcodec/subtitle.c
+++ b/modules/codec/avcodec/subtitle.c
@@ -317,12 +317,14 @@ static subpicture_t *ConvertSubtitle(decoder_t *dec, AVSubtitle *ffsub, mtime_t
     if (!spu)
         return NULL;
 
+    decoder_sys_t *p_sys = dec->p_sys;
+
     //msg_Err(dec, "%lld %d %d",
     //        pts, ffsub->start_display_time, ffsub->end_display_time);
     spu->i_start    = pts + ffsub->start_display_time * INT64_C(1000);
     spu->i_stop     = pts + ffsub->end_display_time * INT64_C(1000);
     spu->b_absolute = true; /* We have offset and size for subtitle */
-    spu->b_ephemer  = dec->p_sys->b_need_ephemer;
+    spu->b_ephemer  = p_sys->b_need_ephemer;
                     /* We only show subtitle for i_stop time only */
 
     if (avctx->coded_width != 0 && avctx->coded_height != 0) {
diff --git a/modules/codec/avcodec/video.c b/modules/codec/avcodec/video.c
index 13223e0e59..24c3d11261 100644
--- a/modules/codec/avcodec/video.c
+++ b/modules/codec/avcodec/video.c
@@ -337,15 +337,17 @@ static int lavc_UpdateVideoFormat(decoder_t *dec, AVCodecContext *ctx,
     if (val)
         return val;
 
+    decoder_sys_t *p_sys = dec->p_sys;
+
     /* always have date in fields/ticks units */
-    if(dec->p_sys->pts.i_divider_num)
-        date_Change(&dec->p_sys->pts, fmt_out.i_frame_rate *
-                                      __MAX(ctx->ticks_per_frame, 1),
-                                      fmt_out.i_frame_rate_base);
+    if(p_sys->pts.i_divider_num)
+        date_Change(&p_sys->pts, fmt_out.i_frame_rate *
+                                 __MAX(ctx->ticks_per_frame, 1),
+                                 fmt_out.i_frame_rate_base);
     else
-        date_Init(&dec->p_sys->pts, fmt_out.i_frame_rate *
-                                    __MAX(ctx->ticks_per_frame, 1),
-                                    fmt_out.i_frame_rate_base);
+        date_Init(&p_sys->pts, fmt_out.i_frame_rate *
+                               __MAX(ctx->ticks_per_frame, 1),
+                               fmt_out.i_frame_rate_base);
 
     fmt_out.p_palette = dec->fmt_out.video.p_palette;
     dec->fmt_out.video.p_palette = NULL;
@@ -1363,7 +1365,8 @@ static int lavc_va_GetFrame(struct AVCodecContext *ctx, AVFrame *frame,
                             picture_t *pic)
 {
     decoder_t *dec = ctx->opaque;
-    vlc_va_t *va = dec->p_sys->p_va;
+    decoder_sys_t *p_sys = dec->p_sys;
+    vlc_va_t *va = p_sys->p_va;
 
     if (vlc_va_Get(va, pic, &frame->data[0]))
     {
diff --git a/modules/codec/cc.c b/modules/codec/cc.c
index cc52ba8e05..d51a6d0569 100644
--- a/modules/codec/cc.c
+++ b/modules/codec/cc.c
@@ -502,6 +502,7 @@ static subpicture_t *Subtitle( decoder_t *p_dec, eia608_t *h, mtime_t i_pts )
     p_spu->b_absolute = false;
 
     subpicture_updater_sys_t *p_spu_sys = p_spu->updater.p_sys;
+    decoder_sys_t *p_dec_sys = p_dec->p_sys;
 
     /* Set first region defaults */
     /* The "leavetext" alignment is a special mode where the subpicture
@@ -512,7 +513,7 @@ static subpicture_t *Subtitle( decoder_t *p_dec, eia608_t *h, mtime_t i_pts )
 
     /* Set style defaults (will be added to segments if none set) */
     p_spu_sys->p_default_style->i_style_flags |= STYLE_MONOSPACED;
-    if( p_dec->p_sys->b_opaque )
+    if( p_dec_sys->b_opaque )
     {
         p_spu_sys->p_default_style->i_background_alpha = STYLE_ALPHA_OPAQUE >> 1;
         p_spu_sys->p_default_style->i_features |= STYLE_HAS_BACKGROUND_ALPHA;
diff --git a/modules/codec/crystalhd.c b/modules/codec/crystalhd.c
index edb597f9e6..4ca058e66e 100644
--- a/modules/codec/crystalhd.c
+++ b/modules/codec/crystalhd.c
@@ -183,8 +183,8 @@ static int OpenDecoder( vlc_object_t *p_this )
     p_sys->i_nal_size       = 4; // assume 4 byte start codes
     p_sys->i_sps_pps_size   = 0;
     p_sys->p_sps_pps_buf    = NULL;
-    p_dec->p_sys->p_pic     = NULL;
-    p_dec->p_sys->proc_out  = NULL;
+    p_sys->p_pic            = NULL;
+    p_sys->proc_out         = NULL;
 
     /* Win32 code *
      * We cannot link and ship BCM dll, even with LGPL license (too big)
@@ -392,7 +392,8 @@ static BC_STATUS ourCallback(void *shnd, uint32_t width, uint32_t height, uint32
     VLC_UNUSED(width); VLC_UNUSED(height); VLC_UNUSED(stride);
 
     decoder_t *p_dec          = (decoder_t *)shnd;
-    BC_DTS_PROC_OUT *proc_out = p_dec->p_sys->proc_out;
+    decoder_sys_t *p_sys      = p_dec->p_sys;
+    BC_DTS_PROC_OUT *proc_out = p_sys->proc_out;
     BC_DTS_PROC_OUT *proc_in  = (BC_DTS_PROC_OUT*)pOut;
 
     /* Direct Rendering */
@@ -401,11 +402,11 @@ static BC_STATUS ourCallback(void *shnd, uint32_t width, uint32_t height, uint32
         !(proc_in->PicInfo.flags & VDEC_FLAG_FIELDPAIR) )
     {
         if( !decoder_UpdateVideoFormat( p_dec ) )
-            p_dec->p_sys->p_pic = decoder_NewPicture( p_dec );
+            p_sys->p_pic = decoder_NewPicture( p_dec );
     }
 
     /* */
-    picture_t *p_pic = p_dec->p_sys->p_pic;
+    picture_t *p_pic = p_sys->p_pic;
     if( !p_pic )
         return BC_STS_ERROR;
 
diff --git a/modules/codec/cvdsub.c b/modules/codec/cvdsub.c
index 3905bec032..c6fd0b0ddd 100644
--- a/modules/codec/cvdsub.c
+++ b/modules/codec/cvdsub.c
@@ -139,8 +139,10 @@ static int PacketizerOpen( vlc_object_t *p_this )
 
     if( DecoderOpen( p_this ) != VLC_SUCCESS ) return VLC_EGENERIC;
 
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
     p_dec->fmt_out.i_codec = VLC_CODEC_CVD;
-    p_dec->p_sys->b_packetizer = true;
+    p_sys->b_packetizer = true;
 
     return VLC_SUCCESS;
 }
diff --git a/modules/codec/flac.c b/modules/codec/flac.c
index 31c9cca04b..13580f9a90 100644
--- a/modules/codec/flac.c
+++ b/modules/codec/flac.c
@@ -394,6 +394,7 @@ static void DecoderErrorCallback( const FLAC__StreamDecoder *decoder,
 {
     VLC_UNUSED(decoder);
     decoder_t *p_dec = (decoder_t *)client_data;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
     switch( status )
     {
@@ -416,7 +417,7 @@ static void DecoderErrorCallback( const FLAC__StreamDecoder *decoder,
         msg_Err( p_dec, "got decoder error: %d", status );
     }
 
-    FLAC__stream_decoder_flush( p_dec->p_sys->p_flac );
+    FLAC__stream_decoder_flush( p_sys->p_flac );
     return;
 }
 /*****************************************************************************
@@ -626,7 +627,7 @@ static void Flush( decoder_t *p_dec )
     decoder_sys_t *p_sys = p_dec->p_sys;
 
     if( p_sys->b_stream_info )
-        FLAC__stream_decoder_flush( p_dec->p_sys->p_flac );
+        FLAC__stream_decoder_flush( p_sys->p_flac );
     date_Set( &p_sys->end_date, 0 );
 }
 
@@ -671,18 +672,18 @@ static int DecodeBlock( decoder_t *p_dec, block_t *p_block )
     {
         decoder_state_error( p_dec,
                              FLAC__stream_decoder_get_state( p_sys->p_flac ) );
-        FLAC__stream_decoder_flush( p_dec->p_sys->p_flac );
+        FLAC__stream_decoder_flush( p_sys->p_flac );
     }
 
     /* If the decoder is in the "aborted" state,
      * FLAC__stream_decoder_process_single() won't return an error. */
-    switch ( FLAC__stream_decoder_get_state(p_dec->p_sys->p_flac) )
+    switch ( FLAC__stream_decoder_get_state(p_sys->p_flac) )
     {
         case FLAC__STREAM_DECODER_ABORTED:
-            FLAC__stream_decoder_flush( p_dec->p_sys->p_flac );
+            FLAC__stream_decoder_flush( p_sys->p_flac );
             break;
         case FLAC__STREAM_DECODER_END_OF_STREAM:
-            FLAC__stream_decoder_reset( p_dec->p_sys->p_flac );
+            FLAC__stream_decoder_reset( p_sys->p_flac );
             break;
         default:
             break;
diff --git a/modules/codec/kate.c b/modules/codec/kate.c
index b50d94c7d0..663635ed70 100644
--- a/modules/codec/kate.c
+++ b/modules/codec/kate.c
@@ -436,12 +436,13 @@ static int OpenDecoder( vlc_object_t *p_this )
 static int OpenPacketizer( vlc_object_t *p_this )
 {
     decoder_t *p_dec = (decoder_t*)p_this;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
     int i_ret = OpenDecoder( p_this );
 
     if( i_ret == VLC_SUCCESS )
     {
-        p_dec->p_sys->b_packetizer = true;
+        p_sys->b_packetizer = true;
         p_dec->fmt_out.i_codec = VLC_CODEC_KATE;
     }
 
@@ -1247,9 +1248,11 @@ static void ParseKateComments( decoder_t *p_dec )
     char *psz_name, *psz_value, *psz_comment;
     int i = 0;
 
-    while ( i < p_dec->p_sys->kc.comments )
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
+    while ( i < p_sys->kc.comments )
     {
-        psz_comment = strdup( p_dec->p_sys->kc.user_comments[i] );
+        psz_comment = strdup( p_sys->kc.user_comments[i] );
         if( !psz_comment )
             break;
         psz_name = psz_comment;
diff --git a/modules/codec/oggspots.c b/modules/codec/oggspots.c
index 4683b4c9b9..dc3e21cd93 100644
--- a/modules/codec/oggspots.c
+++ b/modules/codec/oggspots.c
@@ -138,11 +138,12 @@ static int OpenDecoder(vlc_object_t* p_this)
 static int OpenPacketizer(vlc_object_t* p_this)
 {
     decoder_t* p_dec = (decoder_t*)p_this;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
     int i_ret = OpenDecoder(p_this);
 
     if (i_ret == VLC_SUCCESS) {
-        p_dec->p_sys->b_packetizer = true;
+        p_sys->b_packetizer = true;
         p_dec->fmt_out.i_codec = VLC_CODEC_OGGSPOTS;
     }
 
diff --git a/modules/codec/opus.c b/modules/codec/opus.c
index 4bc70dc402..01295d5991 100644
--- a/modules/codec/opus.c
+++ b/modules/codec/opus.c
@@ -177,7 +177,7 @@ static int OpenDecoder( vlc_object_t *p_this )
     /* Allocate the memory needed to store the decoder's structure */
     if( ( p_dec->p_sys = p_sys = malloc(sizeof(decoder_sys_t)) ) == NULL )
         return VLC_ENOMEM;
-    p_dec->p_sys->b_has_headers = false;
+    p_sys->b_has_headers = false;
 
     date_Set( &p_sys->end_date, 0 );
 
diff --git a/modules/codec/png.c b/modules/codec/png.c
index e9bc71c6a7..d8af7c58c8 100644
--- a/modules/codec/png.c
+++ b/modules/codec/png.c
@@ -116,11 +116,12 @@ static int OpenDecoder( vlc_object_t *p_this )
     }
 
     /* Allocate the memory needed to store the decoder's structure */
-    p_dec->p_sys = malloc( sizeof(decoder_sys_t) );
+    decoder_sys_t *p_sys = malloc( sizeof(decoder_sys_t) );
     if( p_dec->p_sys == NULL )
         return VLC_ENOMEM;
+    p_dec->p_sys = p_sys;
 
-    p_dec->p_sys->p_obj = p_this;
+    p_sys->p_obj = p_this;
 
     /* Set output properties */
     p_dec->fmt_out.i_codec = VLC_CODEC_RGBA;
diff --git a/modules/codec/rawvideo.c b/modules/codec/rawvideo.c
index e98061dc60..8fdd57ec21 100644
--- a/modules/codec/rawvideo.c
+++ b/modules/codec/rawvideo.c
@@ -244,7 +244,7 @@ static int DecodeFrame( decoder_t *p_dec, block_t *p_block )
     FillPicture( p_dec, p_block, p_pic );
 
     /* Date management: 1 frame per packet */
-    p_pic->date = date_Get( &p_dec->p_sys->pts );
+    p_pic->date = date_Get( &p_sys->pts );
     date_Increment( &p_sys->pts, 1 );
 
     if( p_block->i_flags & BLOCK_FLAG_INTERLACED_MASK )
diff --git a/modules/codec/scte18.c b/modules/codec/scte18.c
index 2a2181fd3b..ebcb9315cd 100644
--- a/modules/codec/scte18.c
+++ b/modules/codec/scte18.c
@@ -178,7 +178,9 @@ static int Decode( decoder_t *p_dec, block_t *p_block )
     if (p_block->i_flags & (BLOCK_FLAG_CORRUPTED))
         goto exit;
 
-    scte18_cea_t *p_cea = scte18_cea_Decode( p_dec->p_sys->p_handle, p_block );
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
+    scte18_cea_t *p_cea = scte18_cea_Decode( p_sys->p_handle, p_block );
     if( p_cea )
     {
         p_spu = decoder_NewSubpictureText( p_dec );
diff --git a/modules/codec/speex.c b/modules/codec/speex.c
index 9f6884a40c..bfaf85a3db 100644
--- a/modules/codec/speex.c
+++ b/modules/codec/speex.c
@@ -216,10 +216,10 @@ static int OpenDecoder( vlc_object_t *p_this )
     /* Allocate the memory needed to store the decoder's structure */
     if( ( p_dec->p_sys = p_sys = malloc(sizeof(decoder_sys_t)) ) == NULL )
         return VLC_ENOMEM;
-    p_dec->p_sys->bits.buf_size = 0;
-    p_dec->p_sys->b_packetizer = false;
-    p_dec->p_sys->rtp_rate = p_dec->fmt_in.audio.i_rate;
-    p_dec->p_sys->b_has_headers = false;
+    p_sys->bits.buf_size = 0;
+    p_sys->b_packetizer = false;
+    p_sys->rtp_rate = p_dec->fmt_in.audio.i_rate;
+    p_sys->b_has_headers = false;
 
     date_Set( &p_sys->end_date, 0 );
 
@@ -255,12 +255,13 @@ static int OpenDecoder( vlc_object_t *p_this )
 static int OpenPacketizer( vlc_object_t *p_this )
 {
     decoder_t *p_dec = (decoder_t*)p_this;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
     int i_ret = OpenDecoder( p_this );
 
     if( i_ret == VLC_SUCCESS )
     {
-        p_dec->p_sys->b_packetizer = true;
+        p_sys->b_packetizer = true;
         p_dec->fmt_out.i_codec = VLC_CODEC_SPEEX;
     }
 
diff --git a/modules/codec/spudec/spudec.c b/modules/codec/spudec/spudec.c
index 09aeb376e8..67f3418252 100644
--- a/modules/codec/spudec/spudec.c
+++ b/modules/codec/spudec/spudec.c
@@ -113,8 +113,11 @@ static int PacketizerOpen( vlc_object_t *p_this )
     {
         return VLC_EGENERIC;
     }
+
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
     p_dec->pf_packetize  = Packetize;
-    p_dec->p_sys->b_packetizer = true;
+    p_sys->b_packetizer = true;
     es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
     p_dec->fmt_out.i_codec = VLC_CODEC_SPU;
 
diff --git a/modules/codec/stl.c b/modules/codec/stl.c
index d97667c169..7211ad368a 100644
--- a/modules/codec/stl.c
+++ b/modules/codec/stl.c
@@ -381,6 +381,8 @@ static int Decode(decoder_t *p_dec, block_t *p_block)
     if (p_block == NULL) /* No Drain */
         return VLCDEC_SUCCESS;
 
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
     if(p_block->i_buffer < STL_TTI_SIZE)
         p_block->i_flags |= BLOCK_FLAG_CORRUPTED;
 
@@ -395,11 +397,11 @@ static int Decode(decoder_t *p_dec, block_t *p_block)
         }
     }
 
-    const char *psz_charset = cct_nums[p_dec->p_sys->cct - CCT_BEGIN].str;
+    const char *psz_charset = cct_nums[p_sys->cct - CCT_BEGIN].str;
     for (size_t i = 0; i < p_block->i_buffer / STL_TTI_SIZE; i++)
     {
-        stl_sg_t *p_group = &p_dec->p_sys->groups[p_block->p_buffer[0]];
-        if(ParseTTI(p_group, &p_block->p_buffer[i * STL_TTI_SIZE], psz_charset, p_dec->p_sys->i_fps) &&
+        stl_sg_t *p_group = &p_sys->groups[p_block->p_buffer[0]];
+        if(ParseTTI(p_group, &p_block->p_buffer[i * STL_TTI_SIZE], psz_charset, p_sys->i_fps) &&
            p_group->p_segment != NULL )
         {
             /* output */
@@ -426,7 +428,7 @@ static int Decode(decoder_t *p_dec, block_t *p_block)
         }
     }
 
-    ResetGroups(p_dec->p_sys);
+    ResetGroups(p_sys);
 
     block_Release(p_block);
     return VLCDEC_SUCCESS;
diff --git a/modules/codec/textst.c b/modules/codec/textst.c
index c5c414f1cb..72d615f209 100644
--- a/modules/codec/textst.c
+++ b/modules/codec/textst.c
@@ -64,7 +64,7 @@ vlc_module_end()
 static size_t textst_FillRegion(decoder_t *p_dec, const uint8_t *p_data, size_t i_data,
                                 subpicture_updater_sys_region_t *p_region)
 {
-    VLC_UNUSED(p_dec);
+    decoder_sys_t *p_sys = p_dec->p_sys;
     text_segment_t **pp_last = &p_region->p_segments;
     text_style_t *p_style = NULL;
 
@@ -122,8 +122,8 @@ static size_t textst_FillRegion(decoder_t *p_dec, const uint8_t *p_data, size_t
                         p_style->i_style_flags |= STYLE_ITALIC;
                     if(p_data[0] & 0x04)
                         p_style->i_style_flags |= STYLE_OUTLINE;
-                    p_style->i_outline_color = p_dec->p_sys->palette[p_data[1]] & 0x00FFFFFF;
-                    p_style->i_outline_alpha = p_dec->p_sys->palette[p_data[1]] >> 24;
+                    p_style->i_outline_color = p_sys->palette[p_data[1]] & 0x00FFFFFF;
+                    p_style->i_outline_alpha = p_sys->palette[p_data[1]] >> 24;
                     p_style->i_features |= STYLE_HAS_FLAGS | STYLE_HAS_OUTLINE_ALPHA | STYLE_HAS_OUTLINE_COLOR;
                     //p_data[2] outline__thickness
                  }
@@ -136,8 +136,8 @@ static size_t textst_FillRegion(decoder_t *p_dec, const uint8_t *p_data, size_t
              case BD_TEXTST_DATA_FONT_COLOR:
                  if(i_data > 1 && (p_style || (p_style = text_style_Create( STYLE_NO_DEFAULTS ))))
                  {
-                    p_style->i_font_color = p_dec->p_sys->palette[p_data[1]] & 0x00FFFFFF;
-                    p_style->i_font_alpha = p_dec->p_sys->palette[p_data[1]] >> 24;
+                    p_style->i_font_color = p_sys->palette[p_data[1]] & 0x00FFFFFF;
+                    p_style->i_font_alpha = p_sys->palette[p_data[1]] >> 24;
                     p_style->i_features |= STYLE_HAS_FONT_ALPHA | STYLE_HAS_FONT_COLOR;
                  }
                  break;
@@ -171,13 +171,16 @@ static size_t textst_Decode_palette(decoder_t *p_dec, const uint8_t *p_data, siz
 {
     if(i_data < 2)
         return i_data;
+
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
     uint16_t i_size = GetWBE(&p_data[0]);
     p_data += 2; i_data -= 2;
 
     i_size = i_data = __MIN(i_data, i_size);
     while (i_data > 4)
     {
-        p_dec->p_sys->palette[p_data[0]] = /* YCrCbT to ARGB */
+        p_sys->palette[p_data[0]] = /* YCrCbT to ARGB */
                 ( (uint32_t)((float)p_data[1] +1.402f * (p_data[2]-128)) << 16 ) |
                 ( (uint32_t)((float)p_data[1] -0.34414 * (p_data[3]-128) -0.71414 * (p_data[2]-128)) << 8 ) |
                 ( (uint32_t)((float)p_data[1] +1.722 * (p_data[3]-128)) ) |
diff --git a/modules/codec/theora.c b/modules/codec/theora.c
index d48edaab47..fce1dcade5 100644
--- a/modules/codec/theora.c
+++ b/modules/codec/theora.c
@@ -159,7 +159,7 @@ static int OpenDecoder( vlc_object_t *p_this )
     /* Allocate the memory needed to store the decoder's structure */
     if( ( p_dec->p_sys = p_sys = malloc(sizeof(*p_sys)) ) == NULL )
         return VLC_ENOMEM;
-    p_dec->p_sys->b_packetizer = false;
+    p_sys->b_packetizer = false;
     p_sys->b_has_headers = false;
     p_sys->i_pts = VLC_TS_INVALID;
     p_sys->b_decoded_first_keyframe = false;
@@ -183,12 +183,13 @@ static int OpenDecoder( vlc_object_t *p_this )
 static int OpenPacketizer( vlc_object_t *p_this )
 {
     decoder_t *p_dec = (decoder_t*)p_this;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
     int i_ret = OpenDecoder( p_this );
 
     if( i_ret == VLC_SUCCESS )
     {
-        p_dec->p_sys->b_packetizer = true;
+        p_sys->b_packetizer = true;
         p_dec->fmt_out.i_codec = VLC_CODEC_THEORA;
     }
 
@@ -550,6 +551,9 @@ static void ParseTheoraComments( decoder_t *p_dec )
 {
     char *psz_name, *psz_value, *psz_comment;
     int i = 0;
+
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
     /* Regarding the th_comment structure: */
 
     /* The metadata is stored as a series of (tag, value) pairs, in
@@ -565,14 +569,14 @@ static void ParseTheoraComments( decoder_t *p_dec )
        the bitstream format itself treats them as 8-bit clean vectors,
        possibly containing null characters, and so the length array
        should be treated as their authoritative length. */
-    while ( i < p_dec->p_sys->tc.comments )
+    while ( i < p_sys->tc.comments )
     {
-        int clen = p_dec->p_sys->tc.comment_lengths[i];
+        int clen = p_sys->tc.comment_lengths[i];
         if ( clen <= 0 || clen >= INT_MAX ) { i++; continue; }
         psz_comment = (char *)malloc( clen + 1 );
         if( !psz_comment )
             break;
-        memcpy( (void*)psz_comment, (void*)p_dec->p_sys->tc.user_comments[i], clen + 1 );
+        memcpy( (void*)psz_comment, (void*)p_sys->tc.user_comments[i], clen + 1 );
         psz_name = psz_comment;
         psz_value = strchr( psz_comment, '=' );
         if( psz_value )
diff --git a/modules/codec/ttml/substtml.c b/modules/codec/ttml/substtml.c
index edbc79a955..75b3711ae9 100644
--- a/modules/codec/ttml/substtml.c
+++ b/modules/codec/ttml/substtml.c
@@ -1107,6 +1107,7 @@ static int ParseBlock( decoder_t *p_dec, const block_t *p_block )
 
             subpicture_updater_sys_t *p_spu_sys = p_spu->updater.p_sys;
             subpicture_updater_sys_region_t *p_updtregion = NULL;
+            decoder_sys_t *p_dec_sys = p_dec->p_sys;
 
             /* Create region update info from each ttml region */
             for( ttml_region_t *p_region = p_regions;
@@ -1125,8 +1126,8 @@ static int ParseBlock( decoder_t *p_dec, const block_t *p_block )
                 }
 
                 /* broken legacy align var (can't handle center...). Will change only regions content. */
-                if( p_dec->p_sys->i_align & SUBPICTURE_ALIGN_MASK )
-                    p_spu_sys->region.inner_align = p_dec->p_sys->i_align;
+                if( p_dec_sys->i_align & SUBPICTURE_ALIGN_MASK )
+                    p_spu_sys->region.inner_align = p_dec_sys->i_align;
 
                 p_spu_sys->margin_ratio = 0.0;
 
diff --git a/modules/codec/vorbis.c b/modules/codec/vorbis.c
index b4a8bda30f..4a724a5b63 100644
--- a/modules/codec/vorbis.c
+++ b/modules/codec/vorbis.c
@@ -271,12 +271,13 @@ static int OpenDecoder( vlc_object_t *p_this )
 static int OpenPacketizer( vlc_object_t *p_this )
 {
     decoder_t *p_dec = (decoder_t*)p_this;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
     int i_ret = OpenDecoder( p_this );
 
     if( i_ret == VLC_SUCCESS )
     {
-        p_dec->p_sys->b_packetizer = true;
+        p_sys->b_packetizer = true;
         p_dec->fmt_out.i_codec = VLC_CODEC_VORBIS;
     }
 
@@ -608,9 +609,11 @@ static void ParseVorbisComments( decoder_t *p_dec )
     char *psz_name, *psz_value, *psz_comment;
     int i = 0;
 
-    while( i < p_dec->p_sys->vc.comments )
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
+    while( i < p_sys->vc.comments )
     {
-        psz_comment = strdup( p_dec->p_sys->vc.user_comments[i] );
+        psz_comment = strdup( p_sys->vc.user_comments[i] );
         if( !psz_comment )
             break;
         psz_name = psz_comment;
diff --git a/modules/codec/webvtt/subsvtt.c b/modules/codec/webvtt/subsvtt.c
index 667482c133..5b92dbded7 100644
--- a/modules/codec/webvtt/subsvtt.c
+++ b/modules/codec/webvtt/subsvtt.c
@@ -862,7 +862,8 @@ static void webvtt_domnode_SelectNodesInTree( decoder_t *p_dec, const vlc_css_se
 static void webvtt_domnode_SelectRuleNodes( decoder_t *p_dec, const vlc_css_rule_t *p_rule,
                                             mtime_t i_playbacktime, vlc_array_t *p_results )
 {
-    const webvtt_dom_node_t *p_cues = p_dec->p_sys->p_root->p_child;
+    decoder_sys_t *p_sys = p_dec->p_sys;
+    const webvtt_dom_node_t *p_cues = p_sys->p_root->p_child;
     for( const vlc_css_selector_t *p_sel = p_rule->p_selectors; p_sel; p_sel = p_sel->p_next )
     {
         vlc_array_t tempresults;
@@ -1309,6 +1310,7 @@ static text_style_t * ComputeStyle( decoder_t *p_dec, const webvtt_dom_node_t *p
     text_style_t *p_style = NULL;
     text_style_t *p_dfltstyle = NULL;
     mtime_t i_tagtime = -1;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
     for( const webvtt_dom_node_t *p_node = p_leaf ; p_node; p_node = p_node->p_parent )
     {
@@ -1364,7 +1366,7 @@ static text_style_t * ComputeStyle( decoder_t *p_dec, const webvtt_dom_node_t *p
                 else if ( !strcmp( p_tagnode->psz_tag, "v" ) && p_tagnode->psz_attrs )
                 {
 #ifdef HAVE_CSS
-                    if( p_dec->p_sys->p_css_rules == NULL ) /* Only auto style when no CSS sheet */
+                    if( p_sys->p_css_rules == NULL ) /* Only auto style when no CSS sheet */
 #endif
                     {
                         if( p_style || (p_style = text_style_Create( STYLE_NO_DEFAULTS )) )
@@ -1714,13 +1716,14 @@ static void RenderRegions( decoder_t *p_dec, mtime_t i_start, mtime_t i_stop )
 {
     subpicture_t *p_spu = NULL;
     subpicture_updater_sys_region_t *p_updtregion = NULL;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
 #ifdef HAVE_CSS
-    ApplyCSSRules( p_dec, p_dec->p_sys->p_css_rules, i_start );
+    ApplyCSSRules( p_dec, p_sys->p_css_rules, i_start );
 #endif
 
     const webvtt_dom_cue_t *p_rlcue = NULL;
-    for( const webvtt_dom_node_t *p_node = p_dec->p_sys->p_root->p_child;
+    for( const webvtt_dom_node_t *p_node = p_sys->p_root->p_child;
                                   p_node; p_node = p_node->p_next )
     {
         if( p_node->type == NODE_REGION )
@@ -1879,6 +1882,7 @@ static int ProcessISOBMFF( decoder_t *p_dec,
                            const uint8_t *p_buffer, size_t i_buffer,
                            mtime_t i_start, mtime_t i_stop )
 {
+    decoder_sys_t *p_sys = p_dec->p_sys;
     mp4_box_iterator_t it;
     mp4_box_iterator_Init( &it, p_buffer, i_buffer );
     while( mp4_box_iterator_Next( &it ) )
@@ -1916,7 +1920,7 @@ static int ProcessISOBMFF( decoder_t *p_dec,
                 free( psz );
             }
 
-            webvtt_region_t *p_region = webvtt_region_GetByID( p_dec->p_sys,
+            webvtt_region_t *p_region = webvtt_region_GetByID( p_sys,
                                                                p_cue->settings.psz_region );
             if( p_region )
             {
@@ -1925,8 +1929,8 @@ static int ProcessISOBMFF( decoder_t *p_dec,
             }
             else
             {
-                webvtt_domnode_AppendLast( &p_dec->p_sys->p_root->p_child, p_cue );
-                p_cue->p_parent = (webvtt_dom_node_t *) p_dec->p_sys->p_root;
+                webvtt_domnode_AppendLast( &p_sys->p_root->p_child, p_cue );
+                p_cue->p_parent = (webvtt_dom_node_t *) p_sys->p_root;
             }
         }
     }
@@ -2052,13 +2056,15 @@ static int DecodeBlock( decoder_t *p_dec, block_t *p_block )
     if( p_block == NULL ) /* No Drain */
         return VLCDEC_SUCCESS;
 
+    decoder_sys_t *p_sys = p_dec->p_sys;
+
     mtime_t i_start = p_block->i_pts - VLC_TS_0;
     mtime_t i_stop = i_start + p_block->i_length;
 
     if( p_block->i_flags & BLOCK_FLAG_DISCONTINUITY )
-        ClearCuesByTime( &p_dec->p_sys->p_root->p_child, INT64_MAX );
+        ClearCuesByTime( &p_sys->p_root->p_child, INT64_MAX );
     else
-        ClearCuesByTime( &p_dec->p_sys->p_root->p_child, i_start );
+        ClearCuesByTime( &p_sys->p_root->p_child, i_start );
 
     ProcessISOBMFF( p_dec, p_block->p_buffer, p_block->i_buffer,
                     i_start, i_stop );
diff --git a/modules/packetizer/avparser.c b/modules/packetizer/avparser.c
index 364141ac1f..aae267734a 100644
--- a/modules/packetizer/avparser.c
+++ b/modules/packetizer/avparser.c
@@ -142,11 +142,12 @@ int OpenPacketizer( vlc_object_t *p_this )
 void ClosePacketizer( vlc_object_t *p_this )
 {
     decoder_t     *p_dec = (decoder_t*)p_this;
-    if (likely( p_dec->p_sys != NULL ))
+    decoder_sys_t *p_sys = p_dec->p_sys;
+    if (likely( p_sys != NULL ))
     {
-        avcodec_free_context( &p_dec->p_sys->p_codec_ctx );
-        av_parser_close( p_dec->p_sys->p_parser_ctx );
-        free( p_dec->p_sys );
+        avcodec_free_context( &p_sys->p_codec_ctx );
+        av_parser_close( p_sys->p_parser_ctx );
+        free( p_sys );
     }
 }
 
diff --git a/modules/packetizer/copy.c b/modules/packetizer/copy.c
index 073a663ed8..f37e68dd18 100644
--- a/modules/packetizer/copy.c
+++ b/modules/packetizer/copy.c
@@ -132,10 +132,11 @@ static int Open( vlc_object_t *p_this )
 static void Close( vlc_object_t *p_this )
 {
     decoder_t     *p_dec = (decoder_t*)p_this;
+    decoder_sys_t *p_sys = p_dec->p_sys;
 
-    if( p_dec->p_sys->p_block )
+    if( p_sys->p_block )
     {
-        block_ChainRelease( p_dec->p_sys->p_block );
+        block_ChainRelease( p_sys->p_block );
     }
 
     free( p_dec->p_sys );
@@ -143,11 +144,12 @@ static void Close( vlc_object_t *p_this )
 
 static void Flush( decoder_t *p_dec )
 {
-    block_t *p_ret = p_dec->p_sys->p_block;
+    decoder_sys_t *p_sys = p_dec->p_sys;
+    block_t *p_ret = p_sys->p_block;
     if ( p_ret )
     {
         block_Release( p_ret );
-        p_dec->p_sys->p_block = NULL;
+        p_sys->p_block = NULL;
     }
 }
 
@@ -157,7 +159,8 @@ static void Flush( decoder_t *p_dec )
 static block_t *Packetize ( decoder_t *p_dec, block_t **pp_block )
 {
     block_t *p_block;
-    block_t *p_ret = p_dec->p_sys->p_block;
+    decoder_sys_t *p_sys = p_dec->p_sys;
+    block_t *p_ret = p_sys->p_block;
 
     if( pp_block == NULL || *pp_block == NULL )
         return NULL;
@@ -187,10 +190,10 @@ static block_t *Packetize ( decoder_t *p_dec, block_t **pp_block )
         if (p_dec->fmt_in.i_codec != VLC_CODEC_OPUS)
             p_ret->i_length = p_block->i_pts - p_ret->i_pts;
     }
-    p_dec->p_sys->p_block = p_block;
+    p_sys->p_block = p_block;
 
-    if( p_ret && p_dec->p_sys->pf_parse )
-        p_dec->p_sys->pf_parse( p_dec, p_ret );
+    if( p_ret && p_sys->pf_parse )
+        p_sys->pf_parse( p_dec, p_ret );
     return p_ret;
 }
 
diff --git a/modules/packetizer/h264.c b/modules/packetizer/h264.c
index 76b6ed5286..f7c068a4f9 100644
--- a/modules/packetizer/h264.c
+++ b/modules/packetizer/h264.c
@@ -327,7 +327,7 @@ static int Open( vlc_object_t *p_this )
     p_sys->p_ccs = cc_storage_new();
     if( unlikely(!p_sys->p_ccs) )
     {
-        free( p_dec->p_sys );
+        free( p_sys );
         return VLC_ENOMEM;
     }
 
@@ -519,7 +519,8 @@ static block_t *PacketizeAVC1( decoder_t *p_dec, block_t **pp_block )
  *****************************************************************************/
 static block_t *GetCc( decoder_t *p_dec, decoder_cc_desc_t *p_desc )
 {
-    return cc_storage_get_current( p_dec->p_sys->p_ccs, p_desc );
+    decoder_sys_t *p_sys = p_dec->p_sys;
+    return cc_storage_get_current( p_sys->p_ccs, p_desc );
 }
 
 /****************************************************************************
diff --git a/modules/packetizer/hevc.c b/modules/packetizer/hevc.c
index ec8873af7c..151fbf81bc 100644
--- a/modules/packetizer/hevc.c
+++ b/modules/packetizer/hevc.c
@@ -187,7 +187,7 @@ static int Open(vlc_object_t *p_this)
     INITQ(frame);
     INITQ(post);
 
-    packetizer_Init(&p_dec->p_sys->packetizer,
+    packetizer_Init(&p_sys->packetizer,
                     p_hevc_startcode, sizeof(p_hevc_startcode), startcode_FindAnnexB,
                     p_hevc_startcode, 1, 5,
                     PacketizeReset, PacketizeParse, PacketizeValidate, p_dec);
@@ -318,7 +318,8 @@ static void PacketizeFlush( decoder_t *p_dec )
  *****************************************************************************/
 static block_t *GetCc( decoder_t *p_dec, decoder_cc_desc_t *p_desc )
 {
-    return cc_storage_get_current( p_dec->p_sys->p_ccs, p_desc );
+    decoder_sys_t *p_sys = p_dec->p_sys;
+    return cc_storage_get_current( p_sys->p_ccs, p_desc );
 }
 
 /****************************************************************************
diff --git a/modules/packetizer/mpeg4audio.c b/modules/packetizer/mpeg4audio.c
index eb39e70eb3..5c4a3208f5 100644
--- a/modules/packetizer/mpeg4audio.c
+++ b/modules/packetizer/mpeg4audio.c
@@ -150,9 +150,10 @@ enum
 };
 
 #define WARN_ONCE(warn, msg) do{\
-        if( (p_dec->p_sys->i_warnings & warn) == 0 )\
+        decoder_sys_t *p_sys = p_dec->p_sys;\
+        if( (p_sys->i_warnings & warn) == 0 )\
         {\
-            p_dec->p_sys->i_warnings |= warn;\
+            p_sys->i_warnings |= warn;\
             msg_Warn( p_dec, msg );\
         }\
     } while(0)
diff --git a/modules/packetizer/mpeg4video.c b/modules/packetizer/mpeg4video.c
index 8b26ed557d..7ad0e67a54 100644
--- a/modules/packetizer/mpeg4video.c
+++ b/modules/packetizer/mpeg4video.c
@@ -510,7 +510,7 @@ static int ParseVOP( decoder_t *p_dec, block_t *p_vop )
     if( !bs_read1( &s ) ) return VLC_EGENERIC; /* Marker */
 
     /* VOP time increment */
-    i_time_increment_bits = vlc_log2(p_dec->p_sys->i_fps_num - 1) + 1;
+    i_time_increment_bits = vlc_log2(p_sys->i_fps_num - 1) + 1;
     if( i_time_increment_bits < 1 ) i_time_increment_bits = 1;
     i_time_increment = bs_read( &s, i_time_increment_bits );
 
@@ -519,13 +519,13 @@ static int ParseVOP( decoder_t *p_dec, block_t *p_vop )
     {
         p_sys->i_last_time_ref = p_sys->i_time_ref;
         p_sys->i_time_ref +=
-            (i_modulo_time_base * p_dec->p_sys->i_fps_num);
+            (i_modulo_time_base * p_sys->i_fps_num);
         i_time_ref = p_sys->i_time_ref;
     }
     else
     {
         i_time_ref = p_sys->i_last_time_ref +
-            (i_modulo_time_base * p_dec->p_sys->i_fps_num);
+            (i_modulo_time_base * p_sys->i_fps_num);
     }
 
 #if 0
@@ -534,7 +534,7 @@ static int ParseVOP( decoder_t *p_dec, block_t *p_vop )
              p_vop->i_pts, p_vop->i_dts );
 #endif
 
-    if( p_dec->p_sys->i_fps_num < 5 && /* Work-around buggy streams */
+    if( p_sys->i_fps_num < 5 && /* Work-around buggy streams */
         p_dec->fmt_in.video.i_frame_rate > 0 &&
         p_dec->fmt_in.video.i_frame_rate_base > 0 )
     {
@@ -542,11 +542,11 @@ static int ParseVOP( decoder_t *p_dec, block_t *p_vop )
         p_dec->fmt_in.video.i_frame_rate_base /
         p_dec->fmt_in.video.i_frame_rate;
     }
-    else if( p_dec->p_sys->i_fps_num )
+    else if( p_sys->i_fps_num )
         p_sys->i_interpolated_pts +=
             ( CLOCK_FREQ * (i_time_ref + i_time_increment -
               p_sys->i_last_time - p_sys->i_last_timeincr) /
-              p_dec->p_sys->i_fps_num );
+              p_sys->i_fps_num );
 
     p_sys->i_last_time = i_time_ref;
     p_sys->i_last_timeincr = i_time_increment;
diff --git a/modules/packetizer/mpegaudio.c b/modules/packetizer/mpegaudio.c
index 9e6d357b3c..1529d25215 100644
--- a/modules/packetizer/mpegaudio.c
+++ b/modules/packetizer/mpegaudio.c
@@ -399,7 +399,7 @@ static block_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
             if( p_sys->i_bit_rate == 0 )
             {
                 /* Free bitrate, but 99% emulated startcode :( */
-                if( p_dec->p_sys->i_free_frame_size == MPGA_HEADER_SIZE )
+                if( p_sys->i_free_frame_size == MPGA_HEADER_SIZE )
                 {
                     msg_Dbg( p_dec, "free bitrate mode");
                 }
-- 
2.17.0



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