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ARM: NEON optimised vector_fmul_window
[ffmpeg] / libavcodec / h263dec.c
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 7bb8204008198240752a3fea3788ff7906c71c21..03d758d037dfee784ddd97d31ee2aff33a425ff1 100644 (file)
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -1,6 +1,6 @@
 /*
  * H.263 decoder
- * Copyright (c) 2001 Fabrice Bellard.
+ * Copyright (c) 2001 Fabrice Bellard
  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
@@ -35,7 +35,7 @@
 //#define DEBUG
 //#define PRINT_FRAME_TIME
 
-int ff_h263_decode_init(AVCodecContext *avctx)
+av_cold int ff_h263_decode_init(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
@@ -111,7 +111,7 @@ int ff_h263_decode_init(AVCodecContext *avctx)
         if (MPV_common_init(s) < 0)
             return -1;
 
-    if (ENABLE_MSMPEG4_DECODER && s->h263_msmpeg4)
+    if (CONFIG_MSMPEG4_DECODER && s->h263_msmpeg4)
         ff_msmpeg4_decode_init(s);
     else
         h263_decode_init_vlc(s);
@@ -119,7 +119,7 @@ int ff_h263_decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-int ff_h263_decode_end(AVCodecContext *avctx)
+av_cold int ff_h263_decode_end(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
@@ -295,7 +295,7 @@ static int decode_slice(MpegEncContext *s){
             max_extra+= 17;
 
         /* buggy padding but the frame should still end approximately at the bitstream end */
-        if((s->workaround_bugs&FF_BUG_NO_PADDING) && s->error_resilience>=3)
+        if((s->workaround_bugs&FF_BUG_NO_PADDING) && s->error_recognition>=3)
             max_extra+= 48;
         else if((s->workaround_bugs&FF_BUG_NO_PADDING))
             max_extra+= 256*256*256*64;
@@ -355,9 +355,9 @@ uint64_t time= rdtsc();
     if(s->flags&CODEC_FLAG_TRUNCATED){
         int next;
 
-        if(ENABLE_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){
+        if(CONFIG_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){
             next= ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size);
-        }else if(ENABLE_H263_DECODER && s->codec_id==CODEC_ID_H263){
+        }else if(CONFIG_H263_DECODER && s->codec_id==CODEC_ID_H263){
             next= ff_h263_find_frame_end(&s->parse_context, buf, buf_size);
         }else{
             av_log(s->avctx, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n");
@@ -390,9 +390,9 @@ retry:
     }
 
     /* let's go :-) */
-    if (ENABLE_WMV2_DECODER && s->msmpeg4_version==5) {
+    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5) {
         ret= ff_wmv2_decode_picture_header(s);
-    } else if (ENABLE_MSMPEG4_DECODER && s->msmpeg4_version) {
+    } else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {
         ret = msmpeg4_decode_picture_header(s);
     } else if (s->h263_pred) {
         if(s->avctx->extradata_size && s->picture_number==0){
@@ -402,9 +402,6 @@ retry:
             ret = ff_mpeg4_decode_picture_header(s, &gb);
         }
         ret = ff_mpeg4_decode_picture_header(s, &s->gb);
-
-        if(s->flags& CODEC_FLAG_LOW_DELAY)
-            s->low_delay=1;
     } else if (s->codec_id == CODEC_ID_H263I) {
         ret = intel_h263_decode_picture_header(s);
     } else if (s->h263_flv) {
@@ -424,19 +421,19 @@ retry:
     avctx->has_b_frames= !s->low_delay;
 
     if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){
-        if(s->stream_codec_tag == ff_get_fourcc("XVID") ||
-           s->codec_tag == ff_get_fourcc("XVID") || s->codec_tag == ff_get_fourcc("XVIX") ||
-           s->codec_tag == ff_get_fourcc("RMP4"))
+        if(s->stream_codec_tag == AV_RL32("XVID") ||
+           s->codec_tag == AV_RL32("XVID") || s->codec_tag == AV_RL32("XVIX") ||
+           s->codec_tag == AV_RL32("RMP4"))
             s->xvid_build= -1;
 #if 0
-        if(s->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==1
+        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==1
            && s->padding_bug_score > 0 && s->low_delay) // XVID with modified fourcc
             s->xvid_build= -1;
 #endif
     }
 
     if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){
-        if(s->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)
+        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)
             s->divx_version= 400; //divx 4
     }
 
@@ -446,10 +443,10 @@ retry:
     }
 
     if(s->workaround_bugs&FF_BUG_AUTODETECT){
-        if(s->codec_tag == ff_get_fourcc("XVIX"))
+        if(s->codec_tag == AV_RL32("XVIX"))
             s->workaround_bugs|= FF_BUG_XVID_ILACE;
 
-        if(s->codec_tag == ff_get_fourcc("UMP4")){
+        if(s->codec_tag == AV_RL32("UMP4")){
             s->workaround_bugs|= FF_BUG_UMP4;
         }
 
@@ -508,7 +505,7 @@ retry:
             s->padding_bug_score= 256*256*256*64;
 
         /* very ugly XVID padding bug detection FIXME/XXX solve this differently
-         * lets hope this at least works
+         * Let us hope this at least works.
          */
         if(   s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0
            && s->codec_id==CODEC_ID_MPEG4 && s->vo_type==0)
@@ -548,8 +545,8 @@ retry:
 }
 #endif
 
-#if defined(HAVE_MMX) && defined(CONFIG_GPL)
-    if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && avctx->idct_algo == FF_IDCT_AUTO && (mm_flags & MM_MMX)){
+#if HAVE_MMX
+    if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && avctx->idct_algo == FF_IDCT_AUTO && (mm_flags & FF_MM_MMX)){
         avctx->idct_algo= FF_IDCT_XVIDMMX;
         avctx->coded_width= 0; // force reinit
 //        dsputil_init(&s->dsp, avctx);
@@ -623,7 +620,7 @@ retry:
 
     //the second part of the wmv2 header contains the MB skip bits which are stored in current_picture->mb_type
     //which is not available before MPV_frame_start()
-    if (ENABLE_WMV2_DECODER && s->msmpeg4_version==5){
+    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){
         ret = ff_wmv2_decode_secondary_picture_header(s);
         if(ret<0) return ret;
         if(ret==1) goto intrax8_decoded;
@@ -650,7 +647,7 @@ retry:
     }
 
     if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==FF_I_TYPE)
-        if(!ENABLE_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, buf_size) < 0){
+        if(!CONFIG_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, buf_size) < 0){
             s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;
         }
 
@@ -723,6 +720,7 @@ AVCodec mpeg4_decoder = {
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
+    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
 };
 
 AVCodec h263_decoder = {
@@ -736,6 +734,7 @@ AVCodec h263_decoder = {
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
+    .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998"),
 };
 
 AVCodec msmpeg4v1_decoder = {
@@ -748,6 +747,7 @@ AVCodec msmpeg4v1_decoder = {
     ff_h263_decode_end,
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
 };
 
 AVCodec msmpeg4v2_decoder = {
@@ -760,6 +760,7 @@ AVCodec msmpeg4v2_decoder = {
     ff_h263_decode_end,
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
 };
 
 AVCodec msmpeg4v3_decoder = {
@@ -772,6 +773,7 @@ AVCodec msmpeg4v3_decoder = {
     ff_h263_decode_end,
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
 };
 
 AVCodec wmv1_decoder = {
@@ -784,6 +786,7 @@ AVCodec wmv1_decoder = {
     ff_h263_decode_end,
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+    .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
 };
 
 AVCodec h263i_decoder = {
@@ -796,6 +799,7 @@ AVCodec h263i_decoder = {
     ff_h263_decode_end,
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+    .long_name = NULL_IF_CONFIG_SMALL("Intel H.263"),
 };
 
 AVCodec flv_decoder = {
@@ -807,5 +811,6 @@ AVCodec flv_decoder = {
     NULL,
     ff_h263_decode_end,
     ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1
+    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
+    .long_name= NULL_IF_CONFIG_SMALL("Flash Video"),
 };
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