X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fh264.c;h=a61379cc9fa7df7b9b669284b48b62bf5b6762e9;hb=b95534bb674acfe7689ca03cb4fa215c28f8f44f;hp=aea6f4955c05f911d9ef9c27bcde1a35be626003;hpb=c3afe64d0cbe7141a1d90bd1b89895316913e1ea;p=ffmpeg

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index aea6f4955c0..a61379cc9fa 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -21,7 +21,7 @@
 
 /**
  * @file
- * H.264 / AVC / MPEG4 part10 codec.
+ * H.264 / AVC / MPEG-4 part10 codec.
  * @author Michael Niedermayer <michaelni@gmx.at>
  */
 
@@ -180,7 +180,7 @@ void ff_h264_free_tables(H264Context *h)
 int ff_h264_alloc_tables(H264Context *h)
 {
     const int big_mb_num = h->mb_stride * (h->mb_height + 1);
-    const int row_mb_num = 2*h->mb_stride*FFMAX(h->avctx->thread_count, 1);
+    const int row_mb_num = 2*h->mb_stride*FFMAX(h->nb_slice_ctx, 1);
     int x, y;
 
     FF_ALLOCZ_ARRAY_OR_GOTO(h->avctx, h->intra4x4_pred_mode,
@@ -312,7 +312,6 @@ static int h264_init_context(AVCodecContext *avctx, H264Context *h)
     h->cur_chroma_format_idc = -1;
 
     h->picture_structure     = PICT_FRAME;
-    h->slice_context_count   = 1;
     h->workaround_bugs       = avctx->workaround_bugs;
     h->flags                 = avctx->flags;
     h->poc.prev_poc_msb      = 1 << 16;
@@ -330,7 +329,7 @@ static int h264_init_context(AVCodecContext *avctx, H264Context *h)
 
     avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
 
-    h->nb_slice_ctx = (avctx->active_thread_type & FF_THREAD_SLICE) ?  H264_MAX_THREADS : 1;
+    h->nb_slice_ctx = (avctx->active_thread_type & FF_THREAD_SLICE) ? avctx->thread_count : 1;
     h->slice_ctx = av_mallocz_array(h->nb_slice_ctx, sizeof(*h->slice_ctx));
     if (!h->slice_ctx) {
         h->nb_slice_ctx = 0;
@@ -357,6 +356,38 @@ static int h264_init_context(AVCodecContext *avctx, H264Context *h)
     return 0;
 }
 
+static av_cold int h264_decode_end(AVCodecContext *avctx)
+{
+    H264Context *h = avctx->priv_data;
+    int i;
+
+    ff_h264_remove_all_refs(h);
+    ff_h264_free_tables(h);
+
+    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
+        ff_h264_unref_picture(h, &h->DPB[i]);
+        av_frame_free(&h->DPB[i].f);
+    }
+    memset(h->delayed_pic, 0, sizeof(h->delayed_pic));
+
+    h->cur_pic_ptr = NULL;
+
+    av_freep(&h->slice_ctx);
+    h->nb_slice_ctx = 0;
+
+    ff_h264_sei_uninit(&h->sei);
+    ff_h264_ps_uninit(&h->ps);
+
+    ff_h2645_packet_uninit(&h->pkt);
+
+    ff_h264_unref_picture(h, &h->cur_pic);
+    av_frame_free(&h->cur_pic.f);
+    ff_h264_unref_picture(h, &h->last_pic_for_ec);
+    av_frame_free(&h->last_pic_for_ec.f);
+
+    return 0;
+}
+
 static AVOnce h264_vlc_init = AV_ONCE_INIT;
 
 av_cold int ff_h264_decode_init(AVCodecContext *avctx)
@@ -368,10 +399,6 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx)
     if (ret < 0)
         return ret;
 
-    /* set defaults */
-    if (!avctx->has_b_frames)
-        h->low_delay = 1;
-
     ret = ff_thread_once(&h264_vlc_init, ff_h264_decode_init_vlc);
     if (ret != 0) {
         av_log(avctx, AV_LOG_ERROR, "pthread_once has failed.");
@@ -401,7 +428,6 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx)
     if (h->ps.sps && h->ps.sps->bitstream_restriction_flag &&
         h->avctx->has_b_frames < h->ps.sps->num_reorder_frames) {
         h->avctx->has_b_frames = h->ps.sps->num_reorder_frames;
-        h->low_delay           = 0;
     }
 
     avctx->internal->allocate_progress = 1;
@@ -456,8 +482,6 @@ static void decode_postinit(H264Context *h, int setup_finished)
     H264Picture *cur = h->cur_pic_ptr;
     int i, pics, out_of_order, out_idx;
 
-    h->cur_pic_ptr->f->pict_type = h->pict_type;
-
     if (h->next_output_pic)
         return;
 
@@ -631,7 +655,6 @@ static void decode_postinit(H264Context *h, int setup_finished)
         h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
         h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
     }
-    h->low_delay = !h->avctx->has_b_frames;
 
     for (i = 0; 1; i++) {
         if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
@@ -655,7 +678,6 @@ static void decode_postinit(H264Context *h, int setup_finished)
     } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
         av_log(h->avctx, AV_LOG_INFO, "Increasing reorder buffer to %d\n", out_of_order);
         h->avctx->has_b_frames = out_of_order;
-        h->low_delay = 0;
     }
 
     pics = 0;
@@ -860,9 +882,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)
 
     h->nal_unit_type= 0;
 
-    if(!h->slice_context_count)
-         h->slice_context_count= 1;
-    h->max_contexts = h->slice_context_count;
+    h->max_contexts = h->nb_slice_ctx;
     if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)) {
         h->current_slice = 0;
         if (!h->first_field)
@@ -1073,9 +1093,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
                     goto end;
                 context_count = 0;
             }
-            /* Slice could not be decoded in parallel mode, restart. Note
-             * that rbsp_buffer is not transferred, but since we no longer
-             * run in parallel mode this should not be an issue. */
+            /* Slice could not be decoded in parallel mode, restart. */
             sl               = &h->slice_ctx[0];
             goto again;
         }
@@ -1353,7 +1371,7 @@ static int h264_decode_frame(AVCodecContext *avctx, void *data,
                                     h->next_output_pic->mb_type,
                                     h->next_output_pic->qscale_table,
                                     h->next_output_pic->motion_val,
-                                    &h->low_delay,
+                                    NULL,
                                     h->mb_width, h->mb_height, h->mb_stride, 1);
             }
         }
@@ -1366,54 +1384,6 @@ static int h264_decode_frame(AVCodecContext *avctx, void *data,
     return get_consumed_bytes(buf_index, buf_size);
 }
 
-av_cold void ff_h264_free_context(H264Context *h)
-{
-    int i;
-
-    ff_h264_free_tables(h);
-
-    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
-        ff_h264_unref_picture(h, &h->DPB[i]);
-        av_frame_free(&h->DPB[i].f);
-    }
-    memset(h->delayed_pic, 0, sizeof(h->delayed_pic));
-
-    h->cur_pic_ptr = NULL;
-
-    for (i = 0; i < h->nb_slice_ctx; i++)
-        av_freep(&h->slice_ctx[i].rbsp_buffer);
-    av_freep(&h->slice_ctx);
-    h->nb_slice_ctx = 0;
-
-    ff_h264_sei_uninit(&h->sei);
-
-    for (i = 0; i < MAX_SPS_COUNT; i++)
-        av_buffer_unref(&h->ps.sps_list[i]);
-
-    for (i = 0; i < MAX_PPS_COUNT; i++)
-        av_buffer_unref(&h->ps.pps_list[i]);
-
-    av_buffer_unref(&h->ps.sps_ref);
-    av_buffer_unref(&h->ps.pps_ref);
-
-    ff_h2645_packet_uninit(&h->pkt);
-}
-
-static av_cold int h264_decode_end(AVCodecContext *avctx)
-{
-    H264Context *h = avctx->priv_data;
-
-    ff_h264_remove_all_refs(h);
-    ff_h264_free_context(h);
-
-    ff_h264_unref_picture(h, &h->cur_pic);
-    av_frame_free(&h->cur_pic.f);
-    ff_h264_unref_picture(h, &h->last_pic_for_ec);
-    av_frame_free(&h->last_pic_for_ec.f);
-
-    return 0;
-}
-
 #define OFFSET(x) offsetof(H264Context, x)
 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
 static const AVOption h264_options[] = {