asvdec: cosmetics, reformat

1 files changed, 128 insertions, 102 deletions

diff --git a/libavcodec/asvdec.c b/libavcodec/asvdec.c
index a53ba77fc5..16722a9192 100644
--- a/libavcodec/asvdec.c
+++ b/libavcodec/asvdec.c
@@ -46,124 +46,148 @@ static VLC dc_ccp_vlc;
 static VLC ac_ccp_vlc;
 static VLC asv2_level_vlc;
 
-static av_cold void init_vlcs(ASV1Context *a){
+static av_cold void init_vlcs(ASV1Context *a)
+{
     static int done = 0;
 
     if (!done) {
         done = 1;
 
         INIT_VLC_STATIC(&ccp_vlc, VLC_BITS, 17,
-                 &ff_asv_ccp_tab[0][1], 2, 1,
-                 &ff_asv_ccp_tab[0][0], 2, 1, 64);
+                        &ff_asv_ccp_tab[0][1], 2, 1,
+                        &ff_asv_ccp_tab[0][0], 2, 1, 64);
         INIT_VLC_STATIC(&dc_ccp_vlc, VLC_BITS, 8,
-                 &ff_asv_dc_ccp_tab[0][1], 2, 1,
-                 &ff_asv_dc_ccp_tab[0][0], 2, 1, 64);
+                        &ff_asv_dc_ccp_tab[0][1], 2, 1,
+                        &ff_asv_dc_ccp_tab[0][0], 2, 1, 64);
         INIT_VLC_STATIC(&ac_ccp_vlc, VLC_BITS, 16,
-                 &ff_asv_ac_ccp_tab[0][1], 2, 1,
-                 &ff_asv_ac_ccp_tab[0][0], 2, 1, 64);
+                        &ff_asv_ac_ccp_tab[0][1], 2, 1,
+                        &ff_asv_ac_ccp_tab[0][0], 2, 1, 64);
         INIT_VLC_STATIC(&level_vlc,  VLC_BITS, 7,
-                 &ff_asv_level_tab[0][1], 2, 1,
-                 &ff_asv_level_tab[0][0], 2, 1, 64);
+                        &ff_asv_level_tab[0][1], 2, 1,
+                        &ff_asv_level_tab[0][0], 2, 1, 64);
         INIT_VLC_STATIC(&asv2_level_vlc, ASV2_LEVEL_VLC_BITS, 63,
-                 &ff_asv2_level_tab[0][1], 2, 1,
-                 &ff_asv2_level_tab[0][0], 2, 1, 1024);
+                        &ff_asv2_level_tab[0][1], 2, 1,
+                        &ff_asv2_level_tab[0][0], 2, 1, 1024);
     }
 }
 
 //FIXME write a reversed bitstream reader to avoid the double reverse
-static inline int asv2_get_bits(GetBitContext *gb, int n){
-    return ff_reverse[ get_bits(gb, n) << (8-n) ];
+static inline int asv2_get_bits(GetBitContext *gb, int n)
+{
+    return ff_reverse[get_bits(gb, n) << (8-n)];
 }
 
-static inline int asv1_get_level(GetBitContext *gb){
-    int code= get_vlc2(gb, level_vlc.table, VLC_BITS, 1);
+static inline int asv1_get_level(GetBitContext *gb)
+{
+    int code = get_vlc2(gb, level_vlc.table, VLC_BITS, 1);
 
-    if(code==3) return get_sbits(gb, 8);
-    else        return code - 3;
+    if (code == 3)
+        return get_sbits(gb, 8);
+    else
+        return code - 3;
 }
 
-static inline int asv2_get_level(GetBitContext *gb){
-    int code= get_vlc2(gb, asv2_level_vlc.table, ASV2_LEVEL_VLC_BITS, 1);
+static inline int asv2_get_level(GetBitContext *gb)
+{
+    int code = get_vlc2(gb, asv2_level_vlc.table, ASV2_LEVEL_VLC_BITS, 1);
 
-    if(code==31) return (int8_t)asv2_get_bits(gb, 8);
-    else         return code - 31;
+    if (code == 31)
+        return (int8_t)asv2_get_bits(gb, 8);
+    else
+        return code - 31;
 }
 
-static inline int asv1_decode_block(ASV1Context *a, DCTELEM block[64]){
+static inline int asv1_decode_block(ASV1Context *a, DCTELEM block[64])
+{
     int i;
 
-    block[0]= 8*get_bits(&a->gb, 8);
+    block[0] = 8 * get_bits(&a->gb, 8);
 
-    for(i=0; i<11; i++){
-        const int ccp= get_vlc2(&a->gb, ccp_vlc.table, VLC_BITS, 1);
+    for (i = 0; i < 11; i++) {
+        const int ccp = get_vlc2(&a->gb, ccp_vlc.table, VLC_BITS, 1);
 
-        if(ccp){
-            if(ccp == 16) break;
-            if(ccp < 0 || i>=10){
+        if (ccp) {
+            if (ccp == 16)
+                break;
+            if (ccp < 0 || i >= 10) {
                 av_log(a->avctx, AV_LOG_ERROR, "coded coeff pattern damaged\n");
                 return -1;
             }
 
-            if(ccp&8) block[a->scantable.permutated[4*i+0]]= (asv1_get_level(&a->gb) * a->intra_matrix[4*i+0])>>4;
-            if(ccp&4) block[a->scantable.permutated[4*i+1]]= (asv1_get_level(&a->gb) * a->intra_matrix[4*i+1])>>4;
-            if(ccp&2) block[a->scantable.permutated[4*i+2]]= (asv1_get_level(&a->gb) * a->intra_matrix[4*i+2])>>4;
-            if(ccp&1) block[a->scantable.permutated[4*i+3]]= (asv1_get_level(&a->gb) * a->intra_matrix[4*i+3])>>4;
+            if (ccp & 8)
+                block[a->scantable.permutated[4 * i + 0]] = (asv1_get_level(&a->gb) * a->intra_matrix[4 * i + 0]) >> 4;
+            if (ccp & 4)
+                block[a->scantable.permutated[4 * i + 1]] = (asv1_get_level(&a->gb) * a->intra_matrix[4 * i + 1]) >> 4;
+            if (ccp & 2)
+                block[a->scantable.permutated[4 * i + 2]] = (asv1_get_level(&a->gb) * a->intra_matrix[4 * i + 2]) >> 4;
+            if (ccp & 1)
+                block[a->scantable.permutated[4 * i + 3]] = (asv1_get_level(&a->gb) * a->intra_matrix[4 * i + 3]) >> 4;
         }
     }
 
     return 0;
 }
 
-static inline int asv2_decode_block(ASV1Context *a, DCTELEM block[64]){
+static inline int asv2_decode_block(ASV1Context *a, DCTELEM block[64])
+{
     int i, count, ccp;
 
-    count= asv2_get_bits(&a->gb, 4);
+    count = asv2_get_bits(&a->gb, 4);
 
-    block[0]= 8*asv2_get_bits(&a->gb, 8);
+    block[0] = 8 * asv2_get_bits(&a->gb, 8);
 
-    ccp= get_vlc2(&a->gb, dc_ccp_vlc.table, VLC_BITS, 1);
-    if(ccp){
-        if(ccp&4) block[a->scantable.permutated[1]]= (asv2_get_level(&a->gb) * a->intra_matrix[1])>>4;
-        if(ccp&2) block[a->scantable.permutated[2]]= (asv2_get_level(&a->gb) * a->intra_matrix[2])>>4;
-        if(ccp&1) block[a->scantable.permutated[3]]= (asv2_get_level(&a->gb) * a->intra_matrix[3])>>4;
+    ccp = get_vlc2(&a->gb, dc_ccp_vlc.table, VLC_BITS, 1);
+    if (ccp) {
+        if (ccp & 4)
+            block[a->scantable.permutated[1]] = (asv2_get_level(&a->gb) * a->intra_matrix[1]) >> 4;
+        if (ccp & 2)
+            block[a->scantable.permutated[2]] = (asv2_get_level(&a->gb) * a->intra_matrix[2]) >> 4;
+        if (ccp & 1)
+            block[a->scantable.permutated[3]] = (asv2_get_level(&a->gb) * a->intra_matrix[3]) >> 4;
     }
 
-    for(i=1; i<count+1; i++){
-        const int ccp= get_vlc2(&a->gb, ac_ccp_vlc.table, VLC_BITS, 1);
-
-        if(ccp){
-            if(ccp&8) block[a->scantable.permutated[4*i+0]]= (asv2_get_level(&a->gb) * a->intra_matrix[4*i+0])>>4;
-            if(ccp&4) block[a->scantable.permutated[4*i+1]]= (asv2_get_level(&a->gb) * a->intra_matrix[4*i+1])>>4;
-            if(ccp&2) block[a->scantable.permutated[4*i+2]]= (asv2_get_level(&a->gb) * a->intra_matrix[4*i+2])>>4;
-            if(ccp&1) block[a->scantable.permutated[4*i+3]]= (asv2_get_level(&a->gb) * a->intra_matrix[4*i+3])>>4;
+    for (i = 1; i < count + 1; i++) {
+        const int ccp = get_vlc2(&a->gb, ac_ccp_vlc.table, VLC_BITS, 1);
+
+        if (ccp) {
+            if (ccp & 8)
+                block[a->scantable.permutated[4*i + 0]] = (asv2_get_level(&a->gb) * a->intra_matrix[4*i + 0]) >> 4;
+            if (ccp & 4)
+                block[a->scantable.permutated[4*i + 1]] = (asv2_get_level(&a->gb) * a->intra_matrix[4*i + 1]) >> 4;
+            if (ccp & 2)
+                block[a->scantable.permutated[4*i + 2]] = (asv2_get_level(&a->gb) * a->intra_matrix[4*i + 2]) >> 4;
+            if (ccp & 1)
+                block[a->scantable.permutated[4*i + 3]] = (asv2_get_level(&a->gb) * a->intra_matrix[4*i + 3]) >> 4;
         }
     }
 
     return 0;
 }
 
-static inline int decode_mb(ASV1Context *a, DCTELEM block[6][64]){
+static inline int decode_mb(ASV1Context *a, DCTELEM block[6][64])
+{
     int i;
 
     a->dsp.clear_blocks(block[0]);
 
-    if(a->avctx->codec_id == AV_CODEC_ID_ASV1){
-        for(i=0; i<6; i++){
-            if( asv1_decode_block(a, block[i]) < 0)
+    if (a->avctx->codec_id == AV_CODEC_ID_ASV1) {
+        for (i = 0; i < 6; i++) {
+            if (asv1_decode_block(a, block[i]) < 0)
                 return -1;
         }
-    }else{
-        for(i=0; i<6; i++){
-            if( asv2_decode_block(a, block[i]) < 0)
+    } else {
+        for (i = 0; i < 6; i++) {
+            if (asv2_decode_block(a, block[i]) < 0)
                 return -1;
         }
     }
     return 0;
 }
 
-static inline void idct_put(ASV1Context *a, int mb_x, int mb_y){
-    DCTELEM (*block)[64]= a->block;
-    int linesize= a->picture.linesize[0];
+static inline void idct_put(ASV1Context *a, int mb_x, int mb_y)
+{
+    DCTELEM (*block)[64] = a->block;
+    int linesize         = a->picture.linesize[0];
 
     uint8_t *dest_y  = a->picture.data[0] + (mb_y * 16* linesize              ) + mb_x * 16;
     uint8_t *dest_cb = a->picture.data[1] + (mb_y * 8 * a->picture.linesize[1]) + mb_x * 8;
@@ -174,7 +198,7 @@ static inline void idct_put(ASV1Context *a, int mb_x, int mb_y){
     a->dsp.idct_put(dest_y + 8*linesize    , linesize, block[2]);
     a->dsp.idct_put(dest_y + 8*linesize + 8, linesize, block[3]);
 
-    if(!(a->avctx->flags&CODEC_FLAG_GRAY)){
+    if (!(a->avctx->flags&CODEC_FLAG_GRAY)) {
         a->dsp.idct_put(dest_cb, a->picture.linesize[1], block[4]);
         a->dsp.idct_put(dest_cr, a->picture.linesize[2], block[5]);
     }
@@ -184,62 +208,62 @@ static int decode_frame(AVCodecContext *avctx,
                         void *data, int *got_frame,
                         AVPacket *avpkt)
 {
-    const uint8_t *buf = avpkt->data;
-    int buf_size = avpkt->size;
     ASV1Context * const a = avctx->priv_data;
-    AVFrame *picture = data;
-    AVFrame * const p= &a->picture;
+    const uint8_t *buf    = avpkt->data;
+    int buf_size          = avpkt->size;
+    AVFrame *picture      = data;
+    AVFrame * const p     = &a->picture;
     int mb_x, mb_y;
 
-    if(p->data[0])
+    if (p->data[0])
         avctx->release_buffer(avctx, p);
 
-    p->reference= 0;
-    if(ff_get_buffer(avctx, p) < 0){
+    p->reference = 0;
+    if (ff_get_buffer(avctx, p) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return -1;
     }
-    p->pict_type= AV_PICTURE_TYPE_I;
-    p->key_frame= 1;
+    p->pict_type = AV_PICTURE_TYPE_I;
+    p->key_frame = 1;
 
     av_fast_padded_malloc(&a->bitstream_buffer, &a->bitstream_buffer_size,
                           buf_size);
     if (!a->bitstream_buffer)
         return AVERROR(ENOMEM);
 
-    if(avctx->codec_id == AV_CODEC_ID_ASV1)
+    if (avctx->codec_id == AV_CODEC_ID_ASV1)
         a->dsp.bswap_buf((uint32_t*)a->bitstream_buffer, (const uint32_t*)buf, buf_size/4);
-    else{
+    else {
         int i;
-        for(i=0; i<buf_size; i++)
-            a->bitstream_buffer[i]= ff_reverse[ buf[i] ];
+        for (i = 0; i < buf_size; i++)
+            a->bitstream_buffer[i] = ff_reverse[buf[i]];
     }
 
     init_get_bits(&a->gb, a->bitstream_buffer, buf_size*8);
 
-    for(mb_y=0; mb_y<a->mb_height2; mb_y++){
-        for(mb_x=0; mb_x<a->mb_width2; mb_x++){
-            if( decode_mb(a, a->block) <0)
+    for (mb_y = 0; mb_y < a->mb_height2; mb_y++) {
+        for (mb_x = 0; mb_x < a->mb_width2; mb_x++) {
+            if (decode_mb(a, a->block) < 0)
                 return -1;
 
             idct_put(a, mb_x, mb_y);
         }
     }
 
-    if(a->mb_width2 != a->mb_width){
-        mb_x= a->mb_width2;
-        for(mb_y=0; mb_y<a->mb_height2; mb_y++){
-            if( decode_mb(a, a->block) <0)
+    if (a->mb_width2 != a->mb_width) {
+        mb_x = a->mb_width2;
+        for (mb_y = 0; mb_y < a->mb_height2; mb_y++) {
+            if (decode_mb(a, a->block) < 0)
                 return -1;
 
             idct_put(a, mb_x, mb_y);
         }
     }
 
-    if(a->mb_height2 != a->mb_height){
-        mb_y= a->mb_height2;
-        for(mb_x=0; mb_x<a->mb_width; mb_x++){
-            if( decode_mb(a, a->block) <0)
+    if (a->mb_height2 != a->mb_height) {
+        mb_y = a->mb_height2;
+        for (mb_x = 0; mb_x < a->mb_width; mb_x++) {
+            if (decode_mb(a, a->block) < 0)
                 return -1;
 
             idct_put(a, mb_x, mb_y);
@@ -251,51 +275,53 @@ static int decode_frame(AVCodecContext *avctx,
 
     emms_c();
 
-    return (get_bits_count(&a->gb)+31)/32*4;
+    return (get_bits_count(&a->gb) + 31) / 32 * 4;
 }
 
-static av_cold int decode_init(AVCodecContext *avctx){
+static av_cold int decode_init(AVCodecContext *avctx)
+{
     ASV1Context * const a = avctx->priv_data;
-    AVFrame *p= &a->picture;
+    AVFrame *p            = &a->picture;
+    const int scale       = avctx->codec_id == AV_CODEC_ID_ASV1 ? 1 : 2;
     int i;
-    const int scale= avctx->codec_id == AV_CODEC_ID_ASV1 ? 1 : 2;
 
     ff_asv_common_init(avctx);
     init_vlcs(a);
     ff_init_scantable(a->dsp.idct_permutation, &a->scantable, ff_asv_scantab);
-    avctx->pix_fmt= AV_PIX_FMT_YUV420P;
+    avctx->pix_fmt = AV_PIX_FMT_YUV420P;
 
-    a->inv_qscale= avctx->extradata[0];
-    if(a->inv_qscale == 0){
+    a->inv_qscale = avctx->extradata[0];
+    if (a->inv_qscale == 0) {
         av_log(avctx, AV_LOG_ERROR, "illegal qscale 0\n");
-        if(avctx->codec_id == AV_CODEC_ID_ASV1)
-            a->inv_qscale= 6;
+        if (avctx->codec_id == AV_CODEC_ID_ASV1)
+            a->inv_qscale = 6;
         else
-            a->inv_qscale= 10;
+            a->inv_qscale = 10;
     }
 
-    for(i=0; i<64; i++){
+    for (i = 0; i < 64; i++) {
         int index = ff_asv_scantab[i];
 
-        a->intra_matrix[i]= 64*scale*ff_mpeg1_default_intra_matrix[index] / a->inv_qscale;
+        a->intra_matrix[i] = 64 * scale * ff_mpeg1_default_intra_matrix[index] / a->inv_qscale;
     }
 
-    p->qstride= a->mb_width;
-    p->qscale_table= av_malloc( p->qstride * a->mb_height);
-    p->quality= (32*scale + a->inv_qscale/2)/a->inv_qscale;
-    memset(p->qscale_table, p->quality, p->qstride*a->mb_height);
+    p->qstride      = a->mb_width;
+    p->qscale_table = av_malloc(p->qstride * a->mb_height);
+    p->quality      = (32 * scale + a->inv_qscale / 2) / a->inv_qscale;
+    memset(p->qscale_table, p->quality, p->qstride * a->mb_height);
 
     return 0;
 }
 
-static av_cold int decode_end(AVCodecContext *avctx){
+static av_cold int decode_end(AVCodecContext *avctx)
+{
     ASV1Context * const a = avctx->priv_data;
 
     av_freep(&a->bitstream_buffer);
     av_freep(&a->picture.qscale_table);
-    a->bitstream_buffer_size=0;
+    a->bitstream_buffer_size = 0;
 
-    if(a->picture.data[0])
+    if (a->picture.data[0])
         avctx->release_buffer(avctx, &a->picture);
 
     return 0;