h264: make it possible to compile without error_resilience.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

configure

@@ -1656,7 +1656,7 @@ mdct_select="fft"
 rdft_select="fft"
 mpegaudio_select="mpegaudiodsp"
 mpegaudiodsp_select="dct"
-mpegvideo_select="videodsp"
+mpegvideo_select="error_resilience videodsp"
 mpegvideoenc_select="mpegvideo"
 
 # decoders / encoders
@@ -1707,7 +1707,7 @@ h263_decoder_select="error_resilience h263_parser mpegvideo"
 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
 h263i_decoder_select="h263_decoder"
 h263p_encoder_select="h263_encoder"
-h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel videodsp"
+h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
 huffyuv_encoder_select="huffman"
 iac_decoder_select="fft mdct sinewin"
 imc_decoder_select="fft mdct sinewin"
@@ -1868,7 +1868,7 @@ wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
 
 # parsers
-h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel videodsp"
+h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
 mpeg4video_parser_select="error_resilience mpegvideo"
 mpegvideo_parser_select="error_resilience mpegvideo"
 vc1_parser_select="error_resilience mpegvideo"

libavcodec/h264.c

@@ -1270,6 +1270,7 @@ static int context_init(H264Context *h)
     h->ref_cache[1][scan8[7]  + 1] =
     h->ref_cache[1][scan8[13] + 1] = PART_NOT_AVAILABLE;
 
+    if (CONFIG_ERROR_RESILIENCE) {
     /* init ER */
     er->avctx          = h->avctx;
     er->dsp            = &h->dsp;
@@ -1309,6 +1310,7 @@ static int context_init(H264Context *h)
     er->dc_val[2] = er->dc_val[1] + c_size;
     for (i = 0; i < yc_size; i++)
         h->dc_val_base[i] = 1024;
+    }
 
     return 0;
 
@@ -1339,9 +1341,11 @@ static av_cold void common_init(H264Context *h)
 
     h->dequant_coeff_pps = -1;
 
+    if (CONFIG_ERROR_RESILIENCE) {
         h->dsp.dct_bits = 16;
         /* needed so that IDCT permutation is known early */
         ff_dsputil_init(&h->dsp, h->avctx);
+    }
     ff_videodsp_init(&h->vdsp, 8);
 
     memset(h->pps.scaling_matrix4, 16, 6 * 16 * sizeof(uint8_t));
@@ -1765,9 +1769,11 @@ int ff_h264_frame_start(H264Context *h)
     h->cur_pic     = *h->cur_pic_ptr;
     h->cur_pic.f.extended_data = h->cur_pic.f.data;
 
+    if (CONFIG_ERROR_RESILIENCE) {
         ff_er_frame_start(&h->er);
         h->er.last_pic =
         h->er.next_pic = NULL;
+    }
 
     assert(h->linesize && h->uvlinesize);
 
@@ -2777,7 +2783,8 @@ static int field_end(H264Context *h, int in_setup)
      * past end by one (callers fault) and resync_mb_y != 0
      * causes problems for the first MB line, too.
      */
-    if (!FIELD_PICTURE && h->current_slice && !h->sps.new) {
+    if (CONFIG_ERROR_RESILIENCE &&
+        !FIELD_PICTURE && h->current_slice && !h->sps.new) {
         h->er.cur_pic  = h->cur_pic_ptr;
         ff_er_frame_end(&h->er);
     }
@@ -2880,8 +2887,10 @@ static int h264_set_parameter_from_sps(H264Context *h)
             ff_h264qpel_init(&h->h264qpel, h->sps.bit_depth_luma);
             ff_h264_pred_init(&h->hpc, h->avctx->codec_id, h->sps.bit_depth_luma,
                               h->sps.chroma_format_idc);
+            if (CONFIG_ERROR_RESILIENCE) {
                 h->dsp.dct_bits = h->sps.bit_depth_luma > 8 ? 32 : 16;
                 ff_dsputil_init(&h->dsp, h->avctx);
+            }
             ff_videodsp_init(&h->vdsp, h->sps.bit_depth_luma);
         } else {
             av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
@@ -3043,7 +3052,9 @@ static int h264_slice_header_init(H264Context *h, int reinit)
             H264Context *c;
             c = h->thread_context[i] = av_mallocz(sizeof(H264Context));
             c->avctx       = h->avctx;
+            if (CONFIG_ERROR_RESILIENCE) {
                 c->dsp         = h->dsp;
+            }
             c->vdsp        = h->vdsp;
             c->h264dsp     = h->h264dsp;
             c->h264qpel    = h->h264qpel;
@@ -4152,11 +4163,13 @@ static void decode_finish_row(H264Context *h)
 static void er_add_slice(H264Context *h, int startx, int starty,
                          int endx, int endy, int status)
 {
+    if (CONFIG_ERROR_RESILIENCE) {
         ERContext *er = &h->er;
 
         er->ref_count = h->ref_count[0];
         ff_er_add_slice(er, startx, starty, endx, endy, status);
     }
+}
 
 static int decode_slice(struct AVCodecContext *avctx, void *arg)
 {
@@ -4344,7 +4357,9 @@ static int execute_decode_slices(H264Context *h, int context_count)
         av_assert0(context_count > 0);
         for (i = 1; i < context_count; i++) {
             hx                    = h->thread_context[i];
+            if (CONFIG_ERROR_RESILIENCE) {
                 hx->er.error_count = 0;
+            }
             hx->x264_build        = h->x264_build;
         }
 
@@ -4357,9 +4372,11 @@ static int execute_decode_slices(H264Context *h, int context_count)
         h->mb_y              = hx->mb_y;
         h->droppable         = hx->droppable;
         h->picture_structure = hx->picture_structure;
+        if (CONFIG_ERROR_RESILIENCE) {
             for (i = 1; i < context_count; i++)
                 h->er.error_count += h->thread_context[i]->er.error_count;
         }
+    }
 
     return 0;
 }

libavcodec/h264.h

@@ -256,7 +256,6 @@ typedef struct MMCO {
  */
 typedef struct H264Context {
     AVCodecContext *avctx;
-    DSPContext       dsp;
     VideoDSPContext vdsp;
     H264DSPContext h264dsp;
     H264ChromaContext h264chroma;
@@ -264,6 +263,7 @@ typedef struct H264Context {
     MotionEstContext me;
     ParseContext parse_context;
     GetBitContext gb;
+    DSPContext       dsp;
     ERContext er;
 
     Picture *DPB;