]> git.sesse.net Git - ffmpeg/blobdiff - libavcodec/dxva2_h264.c
Move DECODE_BYTES_PAD* macros before Doxygen comments.
[ffmpeg] / libavcodec / dxva2_h264.c
index 00caa76677546a2b81d6caae3f961fa338d0c1fd..332a76302be4b7e0c72797471c39b5ddab194a21 100644 (file)
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "dxva2.h"
-#include "avcodec.h"
-
-#include "mpegvideo.h"
+#include "dxva2_internal.h"
 #include "h264.h"
 #include "h264data.h"
 
@@ -37,24 +34,6 @@ struct dxva2_picture_context {
     unsigned              bitstream_size;
 };
 
-static void *get_surface(const Picture *picture)
-{
-    return picture->data[3];
-}
-static unsigned get_surface_index(const struct dxva_context *ctx,
-                                  const Picture *picture)
-{
-    void *surface = get_surface(picture);
-    unsigned i;
-
-    for (i = 0; i < ctx->surface_count; i++)
-        if (ctx->surface[i] == surface)
-            return i;
-
-    assert(0);
-    return 0;
-}
-
 static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
                                unsigned index, unsigned flag)
 {
@@ -67,28 +46,28 @@ static void fill_picture_parameters(struct dxva_context *ctx, const H264Context
 {
     const MpegEncContext *s = &h->s;
     const Picture *current_picture = s->current_picture_ptr;
-    int i;
+    int i, j;
 
     memset(pp, 0, sizeof(*pp));
     /* Configure current picture */
     fill_picture_entry(&pp->CurrPic,
-                       get_surface_index(ctx, current_picture),
+                       ff_dxva2_get_surface_index(ctx, current_picture),
                        s->picture_structure == PICT_BOTTOM_FIELD);
     /* Configure the set of references */
     pp->UsedForReferenceFlags  = 0;
     pp->NonExistingFrameFlags  = 0;
-    for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
-        if (i < h->short_ref_count + h->long_ref_count) {
-            const Picture *r;
-            if (i < h->short_ref_count) {
-                r = h->short_ref[i];
-                assert(!r->long_ref);
-            } else {
-                r = h->long_ref[i - h->short_ref_count];
-                assert(r->long_ref);
-            }
+    for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
+        const Picture *r;
+        if (j < h->short_ref_count) {
+            r = h->short_ref[j++];
+        } else {
+            r = NULL;
+            while (!r && j < h->short_ref_count + 16)
+                r = h->long_ref[j++ - h->short_ref_count];
+        }
+        if (r) {
             fill_picture_entry(&pp->RefFrameList[i],
-                               get_surface_index(ctx, r),
+                               ff_dxva2_get_surface_index(ctx, r),
                                r->long_ref != 0);
 
             if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
@@ -203,9 +182,9 @@ static void fill_slice_short(DXVA_Slice_H264_Short *slice,
 static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
                             unsigned position, unsigned size)
 {
-    H264Context *h = avctx->priv_data; /* FIXME Can't use const because of get_bits_count */
+    const H264Context *h = avctx->priv_data;
     struct dxva_context *ctx = avctx->hwaccel_context;
-    MpegEncContext *s = &h->s;
+    const MpegEncContext *s = &h->s;
     unsigned list;
 
     memset(slice, 0, sizeof(*slice));
@@ -225,8 +204,8 @@ static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
         slice->num_ref_idx_l0_active_minus1 = h->ref_count[0] - 1;
     if (h->list_count > 1)
         slice->num_ref_idx_l1_active_minus1 = h->ref_count[1] - 1;
-    slice->slice_alpha_c0_offset_div2   = h->slice_alpha_c0_offset / 2;
-    slice->slice_beta_offset_div2       = h->slice_beta_offset / 2;
+    slice->slice_alpha_c0_offset_div2   = h->slice_alpha_c0_offset / 2 - 26;
+    slice->slice_beta_offset_div2       = h->slice_beta_offset     / 2 - 26;
     slice->Reserved8Bits                = 0;
 
     for (list = 0; list < 2; list++) {
@@ -236,16 +215,16 @@ static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
                 const Picture *r = &h->ref_list[list][i];
                 unsigned plane;
                 fill_picture_entry(&slice->RefPicList[list][i],
-                                   get_surface_index(ctx, r),
+                                   ff_dxva2_get_surface_index(ctx, r),
                                    r->reference == PICT_BOTTOM_FIELD);
                 for (plane = 0; plane < 3; plane++) {
                     int w, o;
                     if (plane == 0 && h->luma_weight_flag[list]) {
-                        w = h->luma_weight[list][i];
-                        o = h->luma_offset[list][i];
+                        w = h->luma_weight[i][list][0];
+                        o = h->luma_weight[i][list][1];
                     } else if (plane >= 1 && h->chroma_weight_flag[list]) {
-                        w = h->chroma_weight[list][i][plane-1];
-                        o = h->chroma_offset[list][i][plane-1];
+                        w = h->chroma_weight[i][list][plane-1][0];
+                        o = h->chroma_weight[i][list][plane-1][1];
                     } else {
                         w = 1 << (plane == 0 ? h->luma_log2_weight_denom :
                                                h->chroma_log2_weight_denom);
@@ -277,47 +256,12 @@ static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
     slice->slice_id = h->current_slice - 1;
 }
 
-static int commit_buffer(AVCodecContext *avctx,
-                         struct dxva_context *ctx,
-                         DXVA2_DecodeBufferDesc *dsc,
-                         unsigned type, const void *data, unsigned size,
-                         unsigned mb_count)
-{
-    void     *dxva_data;
-    unsigned dxva_size;
-    int      result;
-
-    if (FAILED(IDirectXVideoDecoder_GetBuffer(ctx->decoder, type,
-                                              &dxva_data, &dxva_size))) {
-        av_log(avctx, AV_LOG_ERROR, "Failed to get a buffer for %d\n", type);
-        return -1;
-    }
-    if (size <= dxva_size) {
-        memcpy(dxva_data, data, size);
-
-        memset(dsc, 0, sizeof(*dsc));
-        dsc->CompressedBufferType = type;
-        dsc->DataSize             = size;
-        dsc->NumMBsInBuffer       = mb_count;
-
-        result = 0;
-    } else {
-        av_log(avctx, AV_LOG_ERROR, "Buffer for type %d was too small\n", type);
-        result = -1;
-    }
-    if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(ctx->decoder, type))) {
-        av_log(avctx, AV_LOG_ERROR, "Failed to release buffer type %d\n", type);
-        result = -1;
-    }
-    return result;
-}
-
 static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
                                              DXVA2_DecodeBufferDesc *bs,
                                              DXVA2_DecodeBufferDesc *sc)
 {
-    H264Context *h = avctx->priv_data;
-    MpegEncContext *s = &h->s;
+    const H264Context *h = avctx->priv_data;
+    const MpegEncContext *s = &h->s;
     const unsigned mb_count = s->mb_width * s->mb_height;
     struct dxva_context *ctx = avctx->hwaccel_context;
     const Picture *current_picture = h->s.current_picture_ptr;
@@ -404,9 +348,9 @@ static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
         slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
     }
     assert((bs->DataSize & 127) == 0);
-    return commit_buffer(avctx, ctx, sc,
-                         DXVA2_SliceControlBufferType,
-                         slice_data, slice_size, mb_count);
+    return ff_dxva2_commit_buffer(avctx, ctx, sc,
+                                  DXVA2_SliceControlBufferType,
+                                  slice_data, slice_size, mb_count);
 }
 
 
@@ -437,7 +381,7 @@ static int start_frame(AVCodecContext *avctx,
 static int decode_slice(AVCodecContext *avctx,
                         const uint8_t *buffer, uint32_t size)
 {
-    H264Context *h = avctx->priv_data; /* FIXME Can't use const because of get_bits_count */
+    const H264Context *h = avctx->priv_data;
     struct dxva_context *ctx = avctx->hwaccel_context;
     const Picture *current_picture = h->s.current_picture_ptr;
     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
@@ -464,82 +408,6 @@ static int decode_slice(AVCodecContext *avctx,
     return 0;
 }
 
-static int ff_dxva2_common_end_frame(AVCodecContext *avctx, MpegEncContext *s,
-                                     const void *pp, unsigned pp_size,
-                                     const void *qm, unsigned qm_size,
-                                     int (*commit_bs_si)(AVCodecContext *,
-                                                         DXVA2_DecodeBufferDesc *bs,
-                                                         DXVA2_DecodeBufferDesc *slice))
-{
-    struct dxva_context *ctx = avctx->hwaccel_context;
-    unsigned               buffer_count = 0;
-    DXVA2_DecodeBufferDesc buffer[4];
-    DXVA2_DecodeExecuteParams exec;
-    int      result;
-
-    if (FAILED(IDirectXVideoDecoder_BeginFrame(ctx->decoder,
-                                               get_surface(s->current_picture_ptr),
-                                               NULL))) {
-        av_log(avctx, AV_LOG_ERROR, "Failed to begin frame\n");
-        return -1;
-    }
-
-    result = commit_buffer(avctx, ctx, &buffer[buffer_count],
-                           DXVA2_PictureParametersBufferType,
-                           pp, pp_size, 0);
-    if (result) {
-        av_log(avctx, AV_LOG_ERROR,
-               "Failed to add picture parameter buffer\n");
-        goto end;
-    }
-    buffer_count++;
-
-    if (qm_size > 0) {
-        result = commit_buffer(avctx, ctx, &buffer[buffer_count],
-                               DXVA2_InverseQuantizationMatrixBufferType,
-                               qm, qm_size, 0);
-        if (result) {
-            av_log(avctx, AV_LOG_ERROR,
-                   "Failed to add inverse quantization matrix buffer\n");
-            goto end;
-        }
-        buffer_count++;
-    }
-
-    result = commit_bs_si(avctx,
-                          &buffer[buffer_count + 0],
-                          &buffer[buffer_count + 1]);
-    if (result) {
-        av_log(avctx, AV_LOG_ERROR,
-               "Failed to add bitstream or slice control buffer\n");
-        goto end;
-    }
-    buffer_count += 2;
-
-    /* TODO Film Grain when possible */
-
-    assert(buffer_count == 1 + (qm_size > 0) + 2);
-
-    memset(&exec, 0, sizeof(exec));
-    exec.NumCompBuffers      = buffer_count;
-    exec.pCompressedBuffers  = buffer;
-    exec.pExtensionData      = NULL;
-    if (FAILED(IDirectXVideoDecoder_Execute(ctx->decoder, &exec))) {
-        av_log(avctx, AV_LOG_ERROR, "Failed to execute\n");
-        result = -1;
-    }
-
-end:
-    if (FAILED(IDirectXVideoDecoder_EndFrame(ctx->decoder, NULL))) {
-        av_log(avctx, AV_LOG_ERROR, "Failed to end frame\n");
-        result = -1;
-    }
-
-    if (!result)
-        ff_draw_horiz_band(s, 0, s->avctx->height);
-    return result;
-}
-
 static int end_frame(AVCodecContext *avctx)
 {
     H264Context *h = avctx->priv_data;
@@ -557,7 +425,7 @@ static int end_frame(AVCodecContext *avctx)
 
 AVHWAccel h264_dxva2_hwaccel = {
     .name           = "h264_dxva2",
-    .type           = CODEC_TYPE_VIDEO,
+    .type           = AVMEDIA_TYPE_VIDEO,
     .id             = CODEC_ID_H264,
     .pix_fmt        = PIX_FMT_DXVA2_VLD,
     .capabilities   = 0,