parser: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>

libavcodec/parser.c

@@ -23,14 +23,18 @@
 #include <stdint.h>
 #include <string.h>
 
-#include "parser.h"
 #include "libavutil/mem.h"
 
+#include "parser.h"
+
 static AVCodecParser *av_first_parser = NULL;
 
-AVCodecParser* av_parser_next(AVCodecParser *p){
-    if(p) return p->next;
-    else  return av_first_parser;
+AVCodecParser *av_parser_next(AVCodecParser *p)
+{
+    if (p)
+        return p->next;
+    else
+        return av_first_parser;
 }
 
 void av_register_codec_parser(AVCodecParser *parser)
@@ -45,10 +49,10 @@ AVCodecParserContext *av_parser_init(int codec_id)
     AVCodecParser *parser;
     int ret;
 
-    if(codec_id == AV_CODEC_ID_NONE)
+    if (codec_id == AV_CODEC_ID_NONE)
         return NULL;
 
-    for(parser = av_first_parser; parser != NULL; parser = parser->next) {
+    for (parser = av_first_parser; parser != NULL; parser = parser->next) {
         if (parser->codec_ids[0] == codec_id ||
             parser->codec_ids[1] == codec_id ||
             parser->codec_ids[2] == codec_id ||
@@ -57,7 +61,8 @@ AVCodecParserContext *av_parser_init(int codec_id)
             goto found;
     }
     return NULL;
- found:
+
+found:
     s = av_mallocz(sizeof(AVCodecParserContext));
     if (!s)
         return NULL;
@@ -77,9 +82,9 @@ AVCodecParserContext *av_parser_init(int codec_id)
             return NULL;
         }
     }
-    s->fetch_timestamp=1;
-    s->pict_type = AV_PICTURE_TYPE_I;
-    s->key_frame = -1;
+    s->fetch_timestamp      = 1;
+    s->pict_type            = AV_PICTURE_TYPE_I;
+    s->key_frame            = -1;
     s->convergence_duration = 0;
     s->dts_sync_point       = INT_MIN;
     s->dts_ref_dts_delta    = INT_MIN;
@@ -87,71 +92,70 @@ AVCodecParserContext *av_parser_init(int codec_id)
     return s;
 }
 
-void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove){
+void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove)
+{
     int i;
 
-    s->dts= s->pts= AV_NOPTS_VALUE;
-    s->pos= -1;
-    s->offset= 0;
-    for(i = 0; i < AV_PARSER_PTS_NB; i++) {
-        if (   s->cur_offset + off >= s->cur_frame_offset[i]
-            && (s->frame_offset < s->cur_frame_offset[i] ||
-              (!s->frame_offset && !s->next_frame_offset)) // first field/frame
-            && s->cur_frame_end[i]) {
-            s->dts= s->cur_frame_dts[i];
-            s->pts= s->cur_frame_pts[i];
-            s->pos= s->cur_frame_pos[i];
+    s->dts    =
+    s->pts    = AV_NOPTS_VALUE;
+    s->pos    = -1;
+    s->offset = 0;
+    for (i = 0; i < AV_PARSER_PTS_NB; i++) {
+        if (s->cur_offset + off >= s->cur_frame_offset[i] &&
+            (s->frame_offset < s->cur_frame_offset[i] ||
+             (!s->frame_offset && !s->next_frame_offset)) &&
+            s->cur_frame_end[i]) {
+            s->dts    = s->cur_frame_dts[i];
+            s->pts    = s->cur_frame_pts[i];
+            s->pos    = s->cur_frame_pos[i];
             s->offset = s->next_frame_offset - s->cur_frame_offset[i];
-            if(remove)
-                s->cur_frame_offset[i]= INT64_MAX;
-            if(s->cur_offset + off < s->cur_frame_end[i])
+            if (remove)
+                s->cur_frame_offset[i] = INT64_MAX;
+            if (s->cur_offset + off < s->cur_frame_end[i])
                 break;
         }
     }
 }
 
-int av_parser_parse2(AVCodecParserContext *s,
-                     AVCodecContext *avctx,
+int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx,
                      uint8_t **poutbuf, int *poutbuf_size,
                      const uint8_t *buf, int buf_size,
-                     int64_t pts, int64_t dts,
-                     int64_t pos)
+                     int64_t pts, int64_t dts, int64_t pos)
 {
     int index, i;
     uint8_t dummy_buf[FF_INPUT_BUFFER_PADDING_SIZE];
 
-    if(!(s->flags & PARSER_FLAG_FETCHED_OFFSET)) {
+    if (!(s->flags & PARSER_FLAG_FETCHED_OFFSET)) {
         s->next_frame_offset =
         s->cur_offset        = pos;
-        s->flags |= PARSER_FLAG_FETCHED_OFFSET;
+        s->flags            |= PARSER_FLAG_FETCHED_OFFSET;
     }
 
     if (buf_size == 0) {
         /* padding is always necessary even if EOF, so we add it here */
         memset(dummy_buf, 0, sizeof(dummy_buf));
         buf = dummy_buf;
-    } else if (s->cur_offset + buf_size !=
-               s->cur_frame_end[s->cur_frame_start_index]) { /* skip remainder packets */
+    } else if (s->cur_offset + buf_size != s->cur_frame_end[s->cur_frame_start_index]) { /* skip remainder packets */
         /* add a new packet descriptor */
-            i = (s->cur_frame_start_index + 1) & (AV_PARSER_PTS_NB - 1);
-            s->cur_frame_start_index = i;
-            s->cur_frame_offset[i] = s->cur_offset;
-            s->cur_frame_end[i] = s->cur_offset + buf_size;
-            s->cur_frame_pts[i] = pts;
-            s->cur_frame_dts[i] = dts;
-            s->cur_frame_pos[i] = pos;
+        i = (s->cur_frame_start_index + 1) & (AV_PARSER_PTS_NB - 1);
+        s->cur_frame_start_index = i;
+        s->cur_frame_offset[i]   = s->cur_offset;
+        s->cur_frame_end[i]      = s->cur_offset + buf_size;
+        s->cur_frame_pts[i]      = pts;
+        s->cur_frame_dts[i]      = dts;
+        s->cur_frame_pos[i]      = pos;
     }
 
-    if (s->fetch_timestamp){
-        s->fetch_timestamp=0;
-        s->last_pts = s->pts;
-        s->last_dts = s->dts;
-        s->last_pos = s->pos;
+    if (s->fetch_timestamp) {
+        s->fetch_timestamp = 0;
+        s->last_pts        = s->pts;
+        s->last_dts        = s->dts;
+        s->last_pos        = s->pos;
         ff_fetch_timestamp(s, 0, 0);
     }
-
     /* WARNING: the returned index can be negative */
-    index = s->parser->parser_parse(s, avctx, (const uint8_t **)poutbuf, poutbuf_size, buf, buf_size);
+    index = s->parser->parser_parse(s, avctx, (const uint8_t **) poutbuf,
+                                    poutbuf_size, buf, buf_size);
     /* update the file pointer */
     if (*poutbuf_size) {
         /* fill the data for the current frame */
@@ -159,7 +163,7 @@ int av_parser_parse2(AVCodecParserContext *s,
 
         /* offset of the next frame */
         s->next_frame_offset = s->cur_offset + index;
-        s->fetch_timestamp=1;
+        s->fetch_timestamp   = 1;
     }
     if (index < 0)
         index = 0;
@@ -167,30 +171,32 @@ int av_parser_parse2(AVCodecParserContext *s,
     return index;
 }
 
-int av_parser_change(AVCodecParserContext *s,
-                     AVCodecContext *avctx,
+int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx,
                      uint8_t **poutbuf, int *poutbuf_size,
-                     const uint8_t *buf, int buf_size, int keyframe){
-
-    if(s && s->parser->split){
-        if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){
-            int i= s->parser->split(avctx, buf, buf_size);
-            buf += i;
+                     const uint8_t *buf, int buf_size, int keyframe)
+{
+    if (s && s->parser->split) {
+        if ((avctx->flags  & CODEC_FLAG_GLOBAL_HEADER) ||
+            (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)) {
+            int i = s->parser->split(avctx, buf, buf_size);
+            buf      += i;
             buf_size -= i;
         }
     }
 
     /* cast to avoid warning about discarding qualifiers */
-    *poutbuf= (uint8_t *) buf;
-    *poutbuf_size= buf_size;
-    if(avctx->extradata){
+    *poutbuf      = (uint8_t *) buf;
+    *poutbuf_size = buf_size;
+    if (avctx->extradata) {
         if ((keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER))) {
-            int size= buf_size + avctx->extradata_size;
-            *poutbuf_size= size;
-            *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
+            int size = buf_size + avctx->extradata_size;
+
+            *poutbuf_size = size;
+            *poutbuf      = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
 
             memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
-            memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+            memcpy((*poutbuf) + avctx->extradata_size, buf,
+                   buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
             return 1;
         }
     }
@@ -200,7 +206,7 @@ int av_parser_change(AVCodecParserContext *s,
 
 void av_parser_close(AVCodecParserContext *s)
 {
-    if(s){
+    if (s) {
         if (s->parser->parser_close)
             s->parser->parser_close(s);
         av_free(s->priv_data);
@@ -208,31 +214,33 @@ void av_parser_close(AVCodecParserContext *s)
     }
 }
 
-int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size)
+int ff_combine_frame(ParseContext *pc, int next,
+                     const uint8_t **buf, int *buf_size)
 {
-    if(pc->overread){
+    if (pc->overread) {
         av_dlog(NULL, "overread %d, state:%X next:%d index:%d o_index:%d\n",
                 pc->overread, pc->state, next, pc->index, pc->overread_index);
-        av_dlog(NULL, "%X %X %X %X\n", (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]);
+        av_dlog(NULL, "%X %X %X %X\n",
+                (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]);
     }
 
     /* Copy overread bytes from last frame into buffer. */
-    for(; pc->overread>0; pc->overread--){
-        pc->buffer[pc->index++]= pc->buffer[pc->overread_index++];
-    }
+    for (; pc->overread > 0; pc->overread--)
+        pc->buffer[pc->index++] = pc->buffer[pc->overread_index++];
 
     /* flush remaining if EOF */
-    if(!*buf_size && next == END_NOT_FOUND){
-        next= 0;
-    }
+    if (!*buf_size && next == END_NOT_FOUND)
+        next = 0;
 
-    pc->last_index= pc->index;
+    pc->last_index = pc->index;
 
     /* copy into buffer end return */
-    if(next == END_NOT_FOUND){
-        void* new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size, (*buf_size) + pc->index + FF_INPUT_BUFFER_PADDING_SIZE);
+    if (next == END_NOT_FOUND) {
+        void *new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size,
+                                           (*buf_size) + pc->index +
+                                           FF_INPUT_BUFFER_PADDING_SIZE);
 
-        if(!new_buffer)
+        if (!new_buffer)
             return AVERROR(ENOMEM);
         pc->buffer = new_buffer;
         memcpy(&pc->buffer[pc->index], *buf, *buf_size);
@@ -240,34 +248,37 @@ int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_s
         return -1;
     }
 
-    *buf_size=
-    pc->overread_index= pc->index + next;
+    *buf_size          =
+    pc->overread_index = pc->index + next;
 
     /* append to buffer */
-    if(pc->index){
-        void* new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size, next + pc->index + FF_INPUT_BUFFER_PADDING_SIZE);
+    if (pc->index) {
+        void *new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size,
+                                           next + pc->index +
+                                           FF_INPUT_BUFFER_PADDING_SIZE);
 
-        if(!new_buffer)
+        if (!new_buffer)
             return AVERROR(ENOMEM);
         pc->buffer = new_buffer;
         if (next > -FF_INPUT_BUFFER_PADDING_SIZE)
             memcpy(&pc->buffer[pc->index], *buf,
                    next + FF_INPUT_BUFFER_PADDING_SIZE);
         pc->index = 0;
-        *buf= pc->buffer;
+        *buf      = pc->buffer;
     }
 
     /* store overread bytes */
-    for(;next < 0; next++){
-        pc->state = (pc->state<<8) | pc->buffer[pc->last_index + next];
-        pc->state64 = (pc->state64<<8) | pc->buffer[pc->last_index + next];
+    for (; next < 0; next++) {
+        pc->state   = (pc->state   << 8) | pc->buffer[pc->last_index + next];
+        pc->state64 = (pc->state64 << 8) | pc->buffer[pc->last_index + next];
         pc->overread++;
     }
 
-    if(pc->overread){
+    if (pc->overread) {
         av_dlog(NULL, "overread %d, state:%X next:%d index:%d o_index:%d\n",
                 pc->overread, pc->state, next, pc->index, pc->overread_index);
-        av_dlog(NULL, "%X %X %X %X\n", (*buf)[0], (*buf)[1],(*buf)[2],(*buf)[3]);
+        av_dlog(NULL, "%X %X %X %X\n",
+                (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]);
     }
 
     return 0;
@@ -280,16 +291,15 @@ void ff_parse_close(AVCodecParserContext *s)
     av_freep(&pc->buffer);
 }
 
-int ff_mpeg4video_split(AVCodecContext *avctx,
-                           const uint8_t *buf, int buf_size)
+int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
 {
     int i;
-    uint32_t state= -1;
+    uint32_t state = -1;
 
-    for(i=0; i<buf_size; i++){
-        state= (state<<8) | buf[i];
-        if(state == 0x1B3 || state == 0x1B6)
-            return i-3;
+    for (i = 0; i < buf_size; i++) {
+        state = (state << 8) | buf[i];
+        if (state == 0x1B3 || state == 0x1B6)
+            return i - 3;
     }
     return 0;
 }