[FFmpeg-cvslog] h264: move relevant fields from Picture to H264Picture

Vittorio Giovara git at videolan.org
Mon Mar 17 05:58:03 CET 2014


ffmpeg | branch: master | Vittorio Giovara <vittorio.giovara at gmail.com> | Wed Mar 12 09:13:07 2014 +0100| [9b749c8274f6b6f35dde2cf29b99fa4f719abf87] | committer: Vittorio Giovara

h264: move relevant fields from Picture to H264Picture

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9b749c8274f6b6f35dde2cf29b99fa4f719abf87
---

 libavcodec/dxva2_h264.c  |   10 +++----
 libavcodec/h264.c        |   73 +++++++++++++++++++++++++++++-----------------
 libavcodec/h264.h        |   55 ++++++++++++++++++++++++++++------
 libavcodec/h264_direct.c |    8 ++---
 libavcodec/h264_refs.c   |   52 ++++++++++++++++-----------------
 libavcodec/svq3.c        |   18 ++++++------
 libavcodec/vaapi_h264.c  |   10 +++----
 libavcodec/vdpau_h264.c  |   12 ++++----
 8 files changed, 148 insertions(+), 90 deletions(-)

diff --git a/libavcodec/dxva2_h264.c b/libavcodec/dxva2_h264.c
index 6457824..049f816 100644
--- a/libavcodec/dxva2_h264.c
+++ b/libavcodec/dxva2_h264.c
@@ -44,7 +44,7 @@ static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
 static void fill_picture_parameters(struct dxva_context *ctx, const H264Context *h,
                                     DXVA_PicParams_H264 *pp)
 {
-    const Picture *current_picture = h->cur_pic_ptr;
+    const H264Picture *current_picture = h->cur_pic_ptr;
     int i, j;
 
     memset(pp, 0, sizeof(*pp));
@@ -56,7 +56,7 @@ static void fill_picture_parameters(struct dxva_context *ctx, const H264Context
     pp->UsedForReferenceFlags  = 0;
     pp->NonExistingFrameFlags  = 0;
     for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
-        const Picture *r;
+        const H264Picture *r;
         if (j < h->short_ref_count) {
             r = h->short_ref[j++];
         } else {
@@ -226,7 +226,7 @@ static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
         unsigned i;
         for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
             if (list < h->list_count && i < h->ref_count[list]) {
-                const Picture *r = &h->ref_list[list][i];
+                const H264Picture *r = &h->ref_list[list][i];
                 unsigned plane;
                 fill_picture_entry(&slice->RefPicList[list][i],
                                    ff_dxva2_get_surface_index(ctx, r),
@@ -277,7 +277,7 @@ static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
     const H264Context *h = avctx->priv_data;
     const unsigned mb_count = h->mb_width * h->mb_height;
     struct dxva_context *ctx = avctx->hwaccel_context;
-    const Picture *current_picture = h->cur_pic_ptr;
+    const H264Picture *current_picture = h->cur_pic_ptr;
     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
     DXVA_Slice_H264_Short *slice = NULL;
     uint8_t  *dxva_data, *current, *end;
@@ -397,7 +397,7 @@ static int dxva2_h264_decode_slice(AVCodecContext *avctx,
 {
     const H264Context *h = avctx->priv_data;
     struct dxva_context *ctx = avctx->hwaccel_context;
-    const Picture *current_picture = h->cur_pic_ptr;
+    const H264Picture *current_picture = h->cur_pic_ptr;
     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
     unsigned position;
 
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index a672484..938b0c9 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -253,9 +253,9 @@ void ff_h264_draw_horiz_band(H264Context *h, int y, int height)
     }
 }
 
-static void unref_picture(H264Context *h, Picture *pic)
+static void unref_picture(H264Context *h, H264Picture *pic)
 {
-    int off = offsetof(Picture, tf) + sizeof(pic->tf);
+    int off = offsetof(H264Picture, tf) + sizeof(pic->tf);
     int i;
 
     if (!pic->f.buf[0])
@@ -287,7 +287,7 @@ static void release_unused_pictures(H264Context *h, int remove_current)
     }
 }
 
-static int ref_picture(H264Context *h, Picture *dst, Picture *src)
+static int ref_picture(H264Context *h, H264Picture *dst, H264Picture *src)
 {
     int ret, i;
 
@@ -398,7 +398,7 @@ static int init_table_pools(H264Context *h)
     return 0;
 }
 
-static int alloc_picture(H264Context *h, Picture *pic)
+static int alloc_picture(H264Context *h, H264Picture *pic)
 {
     int i, ret = 0;
 
@@ -454,7 +454,7 @@ fail:
     return (ret < 0) ? ret : AVERROR(ENOMEM);
 }
 
-static inline int pic_is_unused(H264Context *h, Picture *pic)
+static inline int pic_is_unused(H264Context *h, H264Picture *pic)
 {
     if (!pic->f.buf[0])
         return 1;
@@ -701,7 +701,7 @@ static int decode_rbsp_trailing(H264Context *h, const uint8_t *src)
     return 0;
 }
 
-static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n,
+static inline int get_lowest_part_list_y(H264Context *h, H264Picture *pic, int n,
                                          int height, int y_offset, int list)
 {
     int raw_my             = h->mv_cache[list][scan8[n]][1];
@@ -723,8 +723,8 @@ static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n,
     y_offset += 16 * (h->mb_y >> MB_FIELD(h));
 
     if (list0) {
-        int ref_n    = h->ref_cache[0][scan8[n]];
-        Picture *ref = &h->ref_list[0][ref_n];
+        int ref_n = h->ref_cache[0][scan8[n]];
+        H264Picture *ref = &h->ref_list[0][ref_n];
 
         // Error resilience puts the current picture in the ref list.
         // Don't try to wait on these as it will cause a deadlock.
@@ -740,7 +740,7 @@ static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n,
 
     if (list1) {
         int ref_n    = h->ref_cache[1][scan8[n]];
-        Picture *ref = &h->ref_list[1][ref_n];
+        H264Picture *ref = &h->ref_list[1][ref_n];
 
         if (ref->tf.progress->data != h->cur_pic.tf.progress->data ||
             (ref->reference & 3) != h->picture_structure) {
@@ -831,7 +831,7 @@ static void await_references(H264Context *h)
         for (ref = 0; ref < 48 && nrefs[list]; ref++) {
             int row = refs[list][ref];
             if (row >= 0) {
-                Picture *ref_pic      = &h->ref_list[list][ref];
+                H264Picture *ref_pic  = &h->ref_list[list][ref];
                 int ref_field         = ref_pic->reference - 1;
                 int ref_field_picture = ref_pic->field_picture;
                 int pic_height        = 16 * h->mb_height >> ref_field_picture;
@@ -865,7 +865,7 @@ static void await_references(H264Context *h)
         }
 }
 
-static av_always_inline void mc_dir_part(H264Context *h, Picture *pic,
+static av_always_inline void mc_dir_part(H264Context *h, H264Picture *pic,
                                          int n, int square, int height,
                                          int delta, int list,
                                          uint8_t *dest_y, uint8_t *dest_cb,
@@ -1010,7 +1010,7 @@ static av_always_inline void mc_part_std(H264Context *h, int n, int square,
     y_offset += 8 * (h->mb_y >> MB_FIELD(h));
 
     if (list0) {
-        Picture *ref = &h->ref_list[0][h->ref_cache[0][scan8[n]]];
+        H264Picture *ref = &h->ref_list[0][h->ref_cache[0][scan8[n]]];
         mc_dir_part(h, ref, n, square, height, delta, 0,
                     dest_y, dest_cb, dest_cr, x_offset, y_offset,
                     qpix_op, chroma_op, pixel_shift, chroma_idc);
@@ -1020,7 +1020,7 @@ static av_always_inline void mc_part_std(H264Context *h, int n, int square,
     }
 
     if (list1) {
-        Picture *ref = &h->ref_list[1][h->ref_cache[1][scan8[n]]];
+        H264Picture *ref = &h->ref_list[1][h->ref_cache[1][scan8[n]]];
         mc_dir_part(h, ref, n, square, height, delta, 1,
                     dest_y, dest_cb, dest_cr, x_offset, y_offset,
                     qpix_op, chroma_op, pixel_shift, chroma_idc);
@@ -1112,7 +1112,7 @@ static av_always_inline void mc_part_weighted(H264Context *h, int n, int square,
     } else {
         int list     = list1 ? 1 : 0;
         int refn     = h->ref_cache[list][scan8[n]];
-        Picture *ref = &h->ref_list[list][refn];
+        H264Picture *ref = &h->ref_list[list][refn];
         mc_dir_part(h, ref, n, square, height, delta, list,
                     dest_y, dest_cb, dest_cr, x_offset, y_offset,
                     qpix_put, chroma_put, pixel_shift, chroma_idc);
@@ -1598,7 +1598,7 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx)
       pic < old_ctx->DPB + MAX_PICTURE_COUNT) ?           \
      &new_ctx->DPB[pic - old_ctx->DPB] : NULL)
 
-static void copy_picture_range(Picture **to, Picture **from, int count,
+static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
                                H264Context *new_base,
                                H264Context *old_base)
 {
@@ -1607,7 +1607,7 @@ static void copy_picture_range(Picture **to, Picture **from, int count,
     for (i = 0; i < count; i++) {
         assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
                 IN_RANGE(from[i], old_base->DPB,
-                         sizeof(Picture) * MAX_PICTURE_COUNT) ||
+                         sizeof(H264Picture) * MAX_PICTURE_COUNT) ||
                 !from[i]));
         to[i] = REBASE_PICTURE(from[i], new_base, old_base);
     }
@@ -1854,7 +1854,7 @@ static int decode_update_thread_context(AVCodecContext *dst,
 
 static int h264_frame_start(H264Context *h)
 {
-    Picture *pic;
+    H264Picture *pic;
     int i, ret;
     const int pixel_shift = h->pixel_shift;
 
@@ -1946,8 +1946,8 @@ static int h264_frame_start(H264Context *h)
  */
 static void decode_postinit(H264Context *h, int setup_finished)
 {
-    Picture *out = h->cur_pic_ptr;
-    Picture *cur = h->cur_pic_ptr;
+    H264Picture *out = h->cur_pic_ptr;
+    H264Picture *cur = h->cur_pic_ptr;
     int i, pics, out_of_order, out_idx;
     int invalid = 0, cnt = 0;
 
@@ -2934,6 +2934,27 @@ static void init_scan_tables(H264Context *h)
     }
 }
 
+#if CONFIG_ERROR_RESILIENCE
+static void h264_set_erpic(ERPicture *dst, H264Picture *src)
+{
+    int i;
+
+    if (!src)
+        return;
+
+    dst->f = &src->f;
+    dst->tf = &src->tf;
+
+    for (i = 0; i < 2; i++) {
+        dst->motion_val[i] = src->motion_val[i];
+        dst->ref_index[i] = src->ref_index[i];
+    }
+
+    dst->mb_type = src->mb_type;
+    dst->field_picture = src->field_picture;
+}
+#endif /* CONFIG_ERROR_RESILIENCE */
+
 static int field_end(H264Context *h, int in_setup)
 {
     AVCodecContext *const avctx = h->avctx;
@@ -2974,11 +2995,11 @@ static int field_end(H264Context *h, int in_setup)
      * causes problems for the first MB line, too.
      */
     if (CONFIG_ERROR_RESILIENCE && !FIELD_PICTURE(h)) {
-        ff_mpeg_set_erpic(&h->er.cur_pic, h->cur_pic_ptr);
-        ff_mpeg_set_erpic(&h->er.last_pic,
-                          h->ref_count[0] ? &h->ref_list[0][0] : NULL);
-        ff_mpeg_set_erpic(&h->er.next_pic,
-                          h->ref_count[1] ? &h->ref_list[1][0] : NULL);
+        h264_set_erpic(&h->er.cur_pic, h->cur_pic_ptr);
+        h264_set_erpic(&h->er.last_pic,
+                       h->ref_count[0] ? &h->ref_list[0][0] : NULL);
+        h264_set_erpic(&h->er.next_pic,
+                       h->ref_count[1] ? &h->ref_list[1][0] : NULL);
         ff_er_frame_end(&h->er);
     }
     emms_c();
@@ -3628,7 +3649,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
 
         while (h->frame_num != h->prev_frame_num &&
                h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) {
-            Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
+            H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
             av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
                    h->frame_num, h->prev_frame_num);
             ret = h264_frame_start(h);
@@ -4914,7 +4935,7 @@ static int h264_decode_frame(AVCodecContext *avctx, void *data,
     /* end of stream, output what is still in the buffers */
 out:
     if (buf_size == 0) {
-        Picture *out;
+        H264Picture *out;
         int i, out_idx;
 
         h->cur_pic_ptr = NULL;
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index f29bc6a..2b85863 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -252,6 +252,43 @@ typedef struct MMCO {
     int long_arg;       ///< index, pic_num, or num long refs depending on opcode
 } MMCO;
 
+typedef struct H264Picture {
+    struct AVFrame f;
+    ThreadFrame tf;
+
+    AVBufferRef *qscale_table_buf;
+    int8_t *qscale_table;
+
+    AVBufferRef *motion_val_buf[2];
+    int16_t (*motion_val[2])[2];
+
+    AVBufferRef *mb_type_buf;
+    uint32_t *mb_type;
+
+    AVBufferRef *hwaccel_priv_buf;
+    void *hwaccel_picture_private; ///< hardware accelerator private data
+
+    AVBufferRef *ref_index_buf[2];
+    int8_t *ref_index[2];
+
+    int field_poc[2];       ///< top/bottom POC
+    int poc;                ///< frame POC
+    int frame_num;          ///< frame_num (raw frame_num from slice header)
+    int mmco_reset;         /**< MMCO_RESET set this 1. Reordering code must
+                                 not mix pictures before and after MMCO_RESET. */
+    int pic_id;             /**< pic_num (short -> no wrap version of pic_num,
+                                 pic_num & max_pic_num; long -> long_pic_num) */
+    int long_ref;           ///< 1->long term reference 0->short term reference
+    int ref_poc[2][2][32];  ///< POCs of the frames used as reference (FIXME need per slice)
+    int ref_count[2][2];    ///< number of entries in ref_poc         (FIXME need per slice)
+    int mbaff;              ///< 1 -> MBAFF frame 0-> not MBAFF
+    int field_picture;      ///< whether or not picture was encoded in separate fields
+
+    int needs_realloc;      ///< picture needs to be reallocated (eg due to a frame size change)
+    int reference;
+    int recovered;          ///< picture at IDR or recovery point + recovery count
+} H264Picture;
+
 /**
  * H264Context
  */
@@ -267,9 +304,9 @@ typedef struct H264Context {
     GetBitContext gb;
     ERContext er;
 
-    Picture *DPB;
-    Picture *cur_pic_ptr;
-    Picture cur_pic;
+    H264Picture *DPB;
+    H264Picture *cur_pic_ptr;
+    H264Picture cur_pic;
 
     int pixel_shift;    ///< 0 for 8-bit H264, 1 for high-bit-depth H264
     int chroma_qp[2];   // QPc
@@ -401,7 +438,7 @@ typedef struct H264Context {
     unsigned int ref_count[2];          ///< counts frames or fields, depending on current mb mode
     unsigned int list_count;
     uint8_t *list_counts;               ///< Array of list_count per MB specifying the slice type
-    Picture ref_list[2][48];            /**< 0..15: frame refs, 16..47: mbaff field refs.
+    H264Picture ref_list[2][48];        /**< 0..15: frame refs, 16..47: mbaff field refs.
                                          *   Reordered version of default_ref_list
                                          *   according to picture reordering in slice header */
     int ref2frm[MAX_SLICES][2][64];     ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
@@ -516,12 +553,12 @@ typedef struct H264Context {
 
     int redundant_pic_count;
 
-    Picture default_ref_list[2][32]; ///< base reference list for all slices of a coded picture
-    Picture *short_ref[32];
-    Picture *long_ref[32];
-    Picture *delayed_pic[MAX_DELAYED_PIC_COUNT + 2]; // FIXME size?
+    H264Picture default_ref_list[2][32]; ///< base reference list for all slices of a coded picture
+    H264Picture *short_ref[32];
+    H264Picture *long_ref[32];
+    H264Picture *delayed_pic[MAX_DELAYED_PIC_COUNT + 2]; // FIXME size?
     int last_pocs[MAX_DELAYED_PIC_COUNT];
-    Picture *next_output_pic;
+    H264Picture *next_output_pic;
     int outputed_poc;
     int next_outputed_poc;
 
diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c
index 85fda31..f62251d 100644
--- a/libavcodec/h264_direct.c
+++ b/libavcodec/h264_direct.c
@@ -67,7 +67,7 @@ void ff_h264_direct_dist_scale_factor(H264Context * const h){
 }
 
 static void fill_colmap(H264Context *h, int map[2][16+32], int list, int field, int colfield, int mbafi){
-    Picture * const ref1 = &h->ref_list[1][0];
+    H264Picture * const ref1 = &h->ref_list[1][0];
     int j, old_ref, rfield;
     int start= mbafi ? 16                      : 0;
     int end  = mbafi ? 16+2*h->ref_count[0]    : h->ref_count[0];
@@ -100,8 +100,8 @@ static void fill_colmap(H264Context *h, int map[2][16+32], int list, int field,
 }
 
 void ff_h264_direct_ref_list_init(H264Context * const h){
-    Picture * const ref1 = &h->ref_list[1][0];
-    Picture * const cur = h->cur_pic_ptr;
+    H264Picture * const ref1 = &h->ref_list[1][0];
+    H264Picture * const cur = h->cur_pic_ptr;
     int list, j, field;
     int sidx= (h->picture_structure&1)^1;
     int ref1sidx = (ref1->reference&1)^1;
@@ -140,7 +140,7 @@ void ff_h264_direct_ref_list_init(H264Context * const h){
     }
 }
 
-static void await_reference_mb_row(H264Context * const h, Picture *ref, int mb_y)
+static void await_reference_mb_row(H264Context * const h, H264Picture *ref, int mb_y)
 {
     int ref_field = ref->reference - 1;
     int ref_field_picture = ref->field_picture;
diff --git a/libavcodec/h264_refs.c b/libavcodec/h264_refs.c
index ccdb49b..277bc09 100644
--- a/libavcodec/h264_refs.c
+++ b/libavcodec/h264_refs.c
@@ -40,7 +40,7 @@ do {\
 } while (0)
 
 
-static void pic_as_field(Picture *pic, const int parity){
+static void pic_as_field(H264Picture *pic, const int parity){
     int i;
     for (i = 0; i < 4; ++i) {
         if (parity == PICT_BOTTOM_FIELD)
@@ -51,7 +51,7 @@ static void pic_as_field(Picture *pic, const int parity){
     pic->poc= pic->field_poc[parity == PICT_BOTTOM_FIELD];
 }
 
-static int split_field_copy(Picture *dest, Picture *src, int parity, int id_add)
+static int split_field_copy(H264Picture *dest, H264Picture *src, int parity, int id_add)
 {
     int match = !!(src->reference & parity);
 
@@ -67,8 +67,8 @@ static int split_field_copy(Picture *dest, Picture *src, int parity, int id_add)
     return match;
 }
 
-static int build_def_list(Picture *def, int def_len,
-                          Picture **in, int len, int is_long, int sel)
+static int build_def_list(H264Picture *def, int def_len,
+                          H264Picture **in, int len, int is_long, int sel)
 {
     int  i[2] = { 0 };
     int index = 0;
@@ -91,7 +91,7 @@ static int build_def_list(Picture *def, int def_len,
     return index;
 }
 
-static int add_sorted(Picture **sorted, Picture **src, int len, int limit, int dir)
+static int add_sorted(H264Picture **sorted, H264Picture **src, int len, int limit, int dir)
 {
     int i, best_poc;
     int out_i = 0;
@@ -118,7 +118,7 @@ int ff_h264_fill_default_ref_list(H264Context *h)
     int i, len;
 
     if (h->slice_type_nos == AV_PICTURE_TYPE_B) {
-        Picture *sorted[32];
+        H264Picture *sorted[32];
         int cur_poc, list;
         int lens[2];
 
@@ -139,7 +139,7 @@ int ff_h264_fill_default_ref_list(H264Context *h)
                                   h->long_ref, 16, 1, h->picture_structure);
 
             if (len < h->ref_count[list])
-                memset(&h->default_ref_list[list][len], 0, sizeof(Picture) * (h->ref_count[list] - len));
+                memset(&h->default_ref_list[list][len], 0, sizeof(H264Picture) * (h->ref_count[list] - len));
             lens[list] = len;
         }
 
@@ -148,7 +148,7 @@ int ff_h264_fill_default_ref_list(H264Context *h)
                         h->default_ref_list[0][i].f.buf[0]->buffer ==
                         h->default_ref_list[1][i].f.buf[0]->buffer; i++);
             if (i == lens[0]) {
-                Picture tmp;
+                H264Picture tmp;
                 COPY_PICTURE(&tmp, &h->default_ref_list[1][0]);
                 COPY_PICTURE(&h->default_ref_list[1][0], &h->default_ref_list[1][1]);
                 COPY_PICTURE(&h->default_ref_list[1][1], &tmp);
@@ -162,7 +162,7 @@ int ff_h264_fill_default_ref_list(H264Context *h)
                               h-> long_ref, 16, 1, h->picture_structure);
 
         if (len < h->ref_count[0])
-            memset(&h->default_ref_list[0][len], 0, sizeof(Picture) * (h->ref_count[0] - len));
+            memset(&h->default_ref_list[0][len], 0, sizeof(H264Picture) * (h->ref_count[0] - len));
     }
 #ifdef TRACE
     for (i = 0; i < h->ref_count[0]; i++) {
@@ -227,7 +227,7 @@ int ff_h264_decode_ref_pic_list_reordering(H264Context *h)
                 unsigned int modification_of_pic_nums_idc = get_ue_golomb_31(&h->gb);
                 unsigned int pic_id;
                 int i;
-                Picture *ref = NULL;
+                H264Picture *ref = NULL;
 
                 if (modification_of_pic_nums_idc == 3)
                     break;
@@ -301,7 +301,7 @@ int ff_h264_decode_ref_pic_list_reordering(H264Context *h)
                 if (i < 0) {
                     av_log(h->avctx, AV_LOG_ERROR,
                            "reference picture missing during reorder\n");
-                    memset(&h->ref_list[list][index], 0, sizeof(Picture)); // FIXME
+                    memset(&h->ref_list[list][index], 0, sizeof(H264Picture)); // FIXME
                 } else {
                     for (i = index; i + 1 < h->ref_count[list]; i++) {
                         if (ref->long_ref == h->ref_list[list][i].long_ref &&
@@ -339,8 +339,8 @@ void ff_h264_fill_mbaff_ref_list(H264Context *h)
     int list, i, j;
     for (list = 0; list < 2; list++) { //FIXME try list_count
         for (i = 0; i < h->ref_count[list]; i++) {
-            Picture *frame = &h->ref_list[list][i];
-            Picture *field = &h->ref_list[list][16 + 2 * i];
+            H264Picture *frame = &h->ref_list[list][i];
+            H264Picture *field = &h->ref_list[list][16 + 2 * i];
             COPY_PICTURE(field, frame);
             for (j = 0; j < 3; j++)
                 field[0].f.linesize[j] <<= 1;
@@ -373,7 +373,7 @@ void ff_h264_fill_mbaff_ref_list(H264Context *h)
  *         for display purposes) zero if one of the fields remains in
  *         reference
  */
-static inline int unreference_pic(H264Context *h, Picture *pic, int refmask)
+static inline int unreference_pic(H264Context *h, H264Picture *pic, int refmask)
 {
     int i;
     if (pic->reference &= refmask) {
@@ -389,19 +389,19 @@ static inline int unreference_pic(H264Context *h, Picture *pic, int refmask)
 }
 
 /**
- * Find a Picture in the short term reference list by frame number.
+ * Find a H264Picture in the short term reference list by frame number.
  * @param frame_num frame number to search for
  * @param idx the index into h->short_ref where returned picture is found
  *            undefined if no picture found.
  * @return pointer to the found picture, or NULL if no pic with the provided
  *                 frame number is found
  */
-static Picture *find_short(H264Context *h, int frame_num, int *idx)
+static H264Picture *find_short(H264Context *h, int frame_num, int *idx)
 {
     int i;
 
     for (i = 0; i < h->short_ref_count; i++) {
-        Picture *pic = h->short_ref[i];
+        H264Picture *pic = h->short_ref[i];
         if (h->avctx->debug & FF_DEBUG_MMCO)
             av_log(h->avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
         if (pic->frame_num == frame_num) {
@@ -424,16 +424,16 @@ static void remove_short_at_index(H264Context *h, int i)
     h->short_ref[i] = NULL;
     if (--h->short_ref_count)
         memmove(&h->short_ref[i], &h->short_ref[i + 1],
-                (h->short_ref_count - i) * sizeof(Picture*));
+                (h->short_ref_count - i) * sizeof(H264Picture*));
 }
 
 /**
  *
  * @return the removed picture or NULL if an error occurs
  */
-static Picture *remove_short(H264Context *h, int frame_num, int ref_mask)
+static H264Picture *remove_short(H264Context *h, int frame_num, int ref_mask)
 {
-    Picture *pic;
+    H264Picture *pic;
     int i;
 
     if (h->avctx->debug & FF_DEBUG_MMCO)
@@ -453,9 +453,9 @@ static Picture *remove_short(H264Context *h, int frame_num, int ref_mask)
  * that list.
  * @return the removed picture or NULL if an error occurs
  */
-static Picture *remove_long(H264Context *h, int i, int ref_mask)
+static H264Picture *remove_long(H264Context *h, int i, int ref_mask)
 {
-    Picture *pic;
+    H264Picture *pic;
 
     pic = h->long_ref[i];
     if (pic) {
@@ -495,7 +495,7 @@ static void print_short_term(H264Context *h)
     if (h->avctx->debug & FF_DEBUG_MMCO) {
         av_log(h->avctx, AV_LOG_DEBUG, "short term list:\n");
         for (i = 0; i < h->short_ref_count; i++) {
-            Picture *pic = h->short_ref[i];
+            H264Picture *pic = h->short_ref[i];
             av_log(h->avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n",
                    i, pic->frame_num, pic->poc, pic->f.data[0]);
         }
@@ -511,7 +511,7 @@ static void print_long_term(H264Context *h)
     if (h->avctx->debug & FF_DEBUG_MMCO) {
         av_log(h->avctx, AV_LOG_DEBUG, "long term list:\n");
         for (i = 0; i < 16; i++) {
-            Picture *pic = h->long_ref[i];
+            H264Picture *pic = h->long_ref[i];
             if (pic) {
                 av_log(h->avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n",
                        i, pic->frame_num, pic->poc, pic->f.data[0]);
@@ -570,7 +570,7 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count)
 {
     int i, av_uninit(j);
     int current_ref_assigned = 0, err = 0;
-    Picture *av_uninit(pic);
+    H264Picture *av_uninit(pic);
 
     if ((h->avctx->debug & FF_DEBUG_MMCO) && mmco_count == 0)
         av_log(h->avctx, AV_LOG_DEBUG, "no mmco here\n");
@@ -691,7 +691,7 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count)
 
             if (h->short_ref_count)
                 memmove(&h->short_ref[1], &h->short_ref[0],
-                        h->short_ref_count * sizeof(Picture*));
+                        h->short_ref_count * sizeof(H264Picture*));
 
             h->short_ref[0] = h->cur_pic_ptr;
             h->short_ref_count++;
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c
index 1275288..2396007 100644
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@@ -68,9 +68,9 @@
 typedef struct {
     H264Context h;
     HpelDSPContext hdsp;
-    Picture *cur_pic;
-    Picture *next_pic;
-    Picture *last_pic;
+    H264Picture *cur_pic;
+    H264Picture *next_pic;
+    H264Picture *last_pic;
     int halfpel_flag;
     int thirdpel_flag;
     int unknown_flag;
@@ -291,8 +291,8 @@ static inline void svq3_mc_dir_part(SVQ3Context *s,
                                     int mx, int my, int dxy,
                                     int thirdpel, int dir, int avg)
 {
-    H264Context *h     = &s->h;
-    const Picture *pic = (dir == 0) ? s->last_pic : s->next_pic;
+    H264Context *h = &s->h;
+    const H264Picture *pic = (dir == 0) ? s->last_pic : s->next_pic;
     uint8_t *src, *dest;
     int i, emu = 0;
     int blocksize = 2 - (width >> 3); // 16->0, 8->1, 4->2
@@ -1030,7 +1030,7 @@ static av_cold int svq3_decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static void free_picture(AVCodecContext *avctx, Picture *pic)
+static void free_picture(AVCodecContext *avctx, H264Picture *pic)
 {
     int i;
     for (i = 0; i < 2; i++) {
@@ -1042,7 +1042,7 @@ static void free_picture(AVCodecContext *avctx, Picture *pic)
     av_frame_unref(&pic->f);
 }
 
-static int get_buffer(AVCodecContext *avctx, Picture *pic)
+static int get_buffer(AVCodecContext *avctx, H264Picture *pic)
 {
     SVQ3Context *s = avctx->priv_data;
     H264Context *h = &s->h;
@@ -1125,7 +1125,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
     h->pict_type = h->slice_type;
 
     if (h->pict_type != AV_PICTURE_TYPE_B)
-        FFSWAP(Picture*, s->next_pic, s->last_pic);
+        FFSWAP(H264Picture*, s->next_pic, s->last_pic);
 
     av_frame_unref(&s->cur_pic->f);
 
@@ -1285,7 +1285,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
         *got_frame = 1;
 
     if (h->pict_type != AV_PICTURE_TYPE_B) {
-        FFSWAP(Picture*, s->cur_pic, s->next_pic);
+        FFSWAP(H264Picture*, s->cur_pic, s->next_pic);
     } else {
         av_frame_unref(&s->cur_pic->f);
     }
diff --git a/libavcodec/vaapi_h264.c b/libavcodec/vaapi_h264.c
index dfa2ec7..0fcd416 100644
--- a/libavcodec/vaapi_h264.c
+++ b/libavcodec/vaapi_h264.c
@@ -51,7 +51,7 @@ static void init_vaapi_pic(VAPictureH264 *va_pic)
  *                             supersedes pic's field type if nonzero.
  */
 static void fill_vaapi_pic(VAPictureH264 *va_pic,
-                           Picture       *pic,
+                           H264Picture   *pic,
                            int            pic_structure)
 {
     if (pic_structure == 0)
@@ -89,7 +89,7 @@ typedef struct DPB {
  * available.  The decoded picture buffer's size must be large enough
  * to receive the new VA API picture object.
  */
-static int dpb_add(DPB *dpb, Picture *pic)
+static int dpb_add(DPB *dpb, H264Picture *pic)
 {
     int i;
 
@@ -133,13 +133,13 @@ static int fill_vaapi_ReferenceFrames(VAPictureParameterBufferH264 *pic_param,
         init_vaapi_pic(&dpb.va_pics[i]);
 
     for (i = 0; i < h->short_ref_count; i++) {
-        Picture * const pic = h->short_ref[i];
+        H264Picture * const pic = h->short_ref[i];
         if (pic && pic->reference && dpb_add(&dpb, pic) < 0)
             return -1;
     }
 
     for (i = 0; i < 16; i++) {
-        Picture * const pic = h->long_ref[i];
+        H264Picture * const pic = h->long_ref[i];
         if (pic && pic->reference && dpb_add(&dpb, pic) < 0)
             return -1;
     }
@@ -155,7 +155,7 @@ static int fill_vaapi_ReferenceFrames(VAPictureParameterBufferH264 *pic_param,
  * @param[in]  ref_count   The number of reference pictures in ref_list
  */
 static void fill_vaapi_RefPicList(VAPictureH264 RefPicList[32],
-                                  Picture      *ref_list,
+                                  H264Picture  *ref_list,
                                   unsigned int  ref_count)
 {
     unsigned int i, n = 0;
diff --git a/libavcodec/vdpau_h264.c b/libavcodec/vdpau_h264.c
index 3e84644..6374e04 100644
--- a/libavcodec/vdpau_h264.c
+++ b/libavcodec/vdpau_h264.c
@@ -46,7 +46,7 @@ static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf)
     rf->frame_idx           = 0;
 }
 
-static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, Picture *pic,
+static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, H264Picture *pic,
                               int pic_structure)
 {
     VdpVideoSurface surface = ff_vdpau_get_surface_id(pic);
@@ -74,11 +74,11 @@ static void vdpau_h264_set_reference_frames(AVCodecContext *avctx)
 #define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames)
 
     for (list = 0; list < 2; ++list) {
-        Picture **lp = list ? h->long_ref : h->short_ref;
+        H264Picture **lp = list ? h->long_ref : h->short_ref;
         int i, ls    = list ? 16          : h->short_ref_count;
 
         for (i = 0; i < ls; ++i) {
-            Picture *pic = lp[i];
+            H264Picture *pic = lp[i];
             VdpReferenceFrameH264 *rf2;
             VdpVideoSurface surface_ref;
             int pic_frame_idx;
@@ -118,7 +118,7 @@ static int vdpau_h264_start_frame(AVCodecContext *avctx,
                                   const uint8_t *buffer, uint32_t size)
 {
     H264Context * const h = avctx->priv_data;
-    Picture *pic = h->cur_pic_ptr;
+    H264Picture *pic = h->cur_pic_ptr;
     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
     VdpPictureInfoH264 *info = &pic_ctx->info.h264;
 
@@ -170,7 +170,7 @@ static int vdpau_h264_decode_slice(AVCodecContext *avctx,
                                    const uint8_t *buffer, uint32_t size)
 {
     H264Context *h = avctx->priv_data;
-    Picture *pic   = h->cur_pic_ptr;
+    H264Picture *pic = h->cur_pic_ptr;
     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
     int val;
 
@@ -190,7 +190,7 @@ static int vdpau_h264_end_frame(AVCodecContext *avctx)
 {
     AVVDPAUContext *hwctx = avctx->hwaccel_context;
     H264Context *h = avctx->priv_data;
-    Picture *pic   = h->cur_pic_ptr;
+    H264Picture *pic = h->cur_pic_ptr;
     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
     VdpVideoSurface surf = ff_vdpau_get_surface_id(pic);
 



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