Change all occurences of "inofficial" to "unofficial" in code, comments

[ffmpeg] / libavcodec / h264_parser.c

diff --git a/libavcodec/h264_parser.c b/libavcodec/h264_parser.c
index e00c15bb606790a19886263e937c43c9b080bcd6..890e0a8930a8134564778b6a31f22ad5fb5b14ec 100644 (file)
--- a/libavcodec/h264_parser.c
+++ b/libavcodec/h264_parser.c
@@ -20,7 +20,7 @@
  */
 
 /**
- * @file libavcodec/h264_parser.c
+ * @file
  * H.264 / AVC / MPEG4 part10 parser.
  * @author Michael Niedermayer <michaelni@gmx.at>
  */
@@ -70,7 +70,7 @@ int ff_h264_find_frame_end(H264Context *h, const uint8_t *buf, int buf_size)
             else            state>>=1; //2->1, 1->0, 0->0
         }else if(state<=5){
             int v= buf[i] & 0x1F;
-            if(v==7 || v==8 || v==9){
+            if(v==6 || v==7 || v==8 || v==9){
                 if(pc->frame_start_found){
                     i++;
                     goto found;
@@ -112,14 +112,20 @@ static inline int parse_nal_units(AVCodecParserContext *s,
 {
     H264Context *h = s->priv_data;
     const uint8_t *buf_end = buf + buf_size;
+    unsigned int pps_id;
     unsigned int slice_type;
-    int state;
+    int state = -1;
     const uint8_t *ptr;
 
     /* set some sane default values */
     s->pict_type = FF_I_TYPE;
+    s->key_frame = 0;
 
     h->s.avctx= avctx;
+    h->sei_recovery_frame_cnt = -1;
+    h->sei_dpb_output_delay         =  0;
+    h->sei_cpb_removal_delay        = -1;
+    h->sei_buffering_period_present =  0;
 
     for(;;) {
         int src_length, dst_length, consumed;
@@ -152,10 +158,75 @@ static inline int parse_nal_units(AVCodecParserContext *s,
             ff_h264_decode_sei(h);
             break;
         case NAL_IDR_SLICE:
+            s->key_frame = 1;
+            /* fall through */
         case NAL_SLICE:
             get_ue_golomb(&h->s.gb);  // skip first_mb_in_slice
             slice_type = get_ue_golomb_31(&h->s.gb);
             s->pict_type = golomb_to_pict_type[slice_type % 5];
+            if (h->sei_recovery_frame_cnt >= 0) {
+                /* key frame, since recovery_frame_cnt is set */
+                s->key_frame = 1;
+            }
+            pps_id= get_ue_golomb(&h->s.gb);
+            if(pps_id>=MAX_PPS_COUNT) {
+                av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
+                return -1;
+            }
+            if(!h->pps_buffers[pps_id]) {
+                av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS referenced\n");
+                return -1;
+            }
+            h->pps= *h->pps_buffers[pps_id];
+            if(!h->sps_buffers[h->pps.sps_id]) {
+                av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS referenced\n");
+                return -1;
+            }
+            h->sps = *h->sps_buffers[h->pps.sps_id];
+            h->frame_num = get_bits(&h->s.gb, h->sps.log2_max_frame_num);
+
+            avctx->profile = h->sps.profile_idc;
+            avctx->level   = h->sps.level_idc;
+
+            if(h->sps.frame_mbs_only_flag){
+                h->s.picture_structure= PICT_FRAME;
+            }else{
+                if(get_bits1(&h->s.gb)) { //field_pic_flag
+                    h->s.picture_structure= PICT_TOP_FIELD + get_bits1(&h->s.gb); //bottom_field_flag
+                } else {
+                    h->s.picture_structure= PICT_FRAME;
+                }
+            }
+
+            if(h->sps.pic_struct_present_flag) {
+                switch (h->sei_pic_struct) {
+                    case SEI_PIC_STRUCT_TOP_FIELD:
+                    case SEI_PIC_STRUCT_BOTTOM_FIELD:
+                        s->repeat_pict = 0;
+                        break;
+                    case SEI_PIC_STRUCT_FRAME:
+                    case SEI_PIC_STRUCT_TOP_BOTTOM:
+                    case SEI_PIC_STRUCT_BOTTOM_TOP:
+                        s->repeat_pict = 1;
+                        break;
+                    case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
+                    case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
+                        s->repeat_pict = 2;
+                        break;
+                    case SEI_PIC_STRUCT_FRAME_DOUBLING:
+                        s->repeat_pict = 3;
+                        break;
+                    case SEI_PIC_STRUCT_FRAME_TRIPLING:
+                        s->repeat_pict = 5;
+                        break;
+                    default:
+                        s->repeat_pict = h->s.picture_structure == PICT_FRAME ? 1 : 0;
+                        break;
+                }
+            } else {
+                s->repeat_pict = h->s.picture_structure == PICT_FRAME ? 1 : 0;
+            }
+
             return 0; /* no need to evaluate the rest */
         }
         buf += consumed;
@@ -174,6 +245,14 @@ static int h264_parse(AVCodecParserContext *s,
     ParseContext *pc = &h->s.parse_context;
     int next;
 
+    if (!h->got_first) {
+        h->got_first = 1;
+        if (avctx->extradata_size) {
+            h->s.avctx = avctx;
+            ff_h264_decode_extradata(h);
+        }
+    }
+
     if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){
         next= buf_size;
     }else{
@@ -191,6 +270,19 @@ static int h264_parse(AVCodecParserContext *s,
         }
 
         parse_nal_units(s, avctx, buf, buf_size);
+
+        if (h->sei_cpb_removal_delay >= 0) {
+            s->dts_sync_point    = h->sei_buffering_period_present;
+            s->dts_ref_dts_delta = h->sei_cpb_removal_delay;
+            s->pts_dts_delta     = h->sei_dpb_output_delay;
+        } else {
+            s->dts_sync_point    = INT_MIN;
+            s->dts_ref_dts_delta = INT_MIN;
+            s->pts_dts_delta     = INT_MIN;
+        }
+        if (s->flags & PARSER_FLAG_ONCE) {
+            s->flags &= PARSER_FLAG_COMPLETE_FRAMES;
+        }
     }
 
     *poutbuf = buf;
@@ -228,13 +320,20 @@ static void close(AVCodecParserContext *s)
     ParseContext *pc = &h->s.parse_context;
 
     av_free(pc->buffer);
+    ff_h264_free_context(h);
 }
 
+static int init(AVCodecParserContext *s)
+{
+    H264Context *h = s->priv_data;
+    h->thread_context[0] = h;
+    return 0;
+}
 
 AVCodecParser h264_parser = {
     { CODEC_ID_H264 },
     sizeof(H264Context),
-    NULL,
+    init,
     h264_parse,
     close,
     h264_split,