From f7813a5324be39d13ab536c245d15dfc602a7849 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Sun, 29 Dec 2013 12:19:38 +0000
Subject: basic type mechanism working

---
 ffmpeg/libavcodec/mpegvideo_xvmc.c | 52 +++++++++++++++++++++++++++++++++++---
 1 file changed, 48 insertions(+), 4 deletions(-)

(limited to 'ffmpeg/libavcodec/mpegvideo_xvmc.c')

diff --git a/ffmpeg/libavcodec/mpegvideo_xvmc.c b/ffmpeg/libavcodec/mpegvideo_xvmc.c
index 6b0c6ac..9fc97cb 100644
--- a/ffmpeg/libavcodec/mpegvideo_xvmc.c
+++ b/ffmpeg/libavcodec/mpegvideo_xvmc.c
@@ -30,6 +30,7 @@
 
 #include "xvmc.h"
 #include "xvmc_internal.h"
+#include "version.h"
 
 /**
  * Initialize the block field of the MpegEncContext pointer passed as
@@ -46,6 +47,15 @@ void ff_xvmc_init_block(MpegEncContext *s)
     s->block = (int16_t (*)[64])(render->data_blocks + render->next_free_data_block_num * 64);
 }
 
+static void exchange_uv(MpegEncContext *s)
+{
+    int16_t (*tmp)[64];
+
+    tmp           = s->pblocks[4];
+    s->pblocks[4] = s->pblocks[5];
+    s->pblocks[5] = tmp;
+}
+
 /**
  * Fill individual block pointers, so there are no gaps in the data_block array
  * in case not all blocks in the macroblock are coded.
@@ -63,6 +73,9 @@ void ff_xvmc_pack_pblocks(MpegEncContext *s, int cbp)
             s->pblocks[i] = NULL;
         cbp += cbp;
     }
+    if (s->swap_uv) {
+        exchange_uv(s);
+    }
 }
 
 /**
@@ -70,8 +83,9 @@ void ff_xvmc_pack_pblocks(MpegEncContext *s, int cbp)
  * This function should be called for every new field and/or frame.
  * It should be safe to call the function a few times for the same field.
  */
-int ff_xvmc_field_start(MpegEncContext *s, AVCodecContext *avctx)
+static int ff_xvmc_field_start(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size)
 {
+    struct MpegEncContext *s = avctx->priv_data;
     struct xvmc_pix_fmt *last, *next, *render = (struct xvmc_pix_fmt*)s->current_picture.f.data[2];
     const int mb_block_count = 4 + (1 << s->chroma_format);
 
@@ -138,20 +152,22 @@ return -1;
  * some leftover blocks, for example from error_resilience(), may remain.
  * It should be safe to call the function a few times for the same field.
  */
-void ff_xvmc_field_end(MpegEncContext *s)
+static int ff_xvmc_field_end(AVCodecContext *avctx)
 {
+    struct MpegEncContext *s = avctx->priv_data;
     struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)s->current_picture.f.data[2];
     assert(render);
 
     if (render->filled_mv_blocks_num > 0)
         ff_mpeg_draw_horiz_band(s, 0, 0);
+    return 0;
 }
 
 /**
  * Synthesize the data needed by XvMC to render one macroblock of data.
  * Fill all relevant fields, if necessary do IDCT.
  */
-void ff_xvmc_decode_mb(MpegEncContext *s)
+static void ff_xvmc_decode_mb(struct MpegEncContext *s)
 {
     XvMCMacroBlock *mv_block;
     struct xvmc_pix_fmt *render;
@@ -310,7 +326,7 @@ void ff_xvmc_decode_mb(MpegEncContext *s)
                  * slowdown. */
             }
             // copy blocks only if the codec doesn't support pblocks reordering
-            if (s->avctx->xvmc_acceleration == 1) {
+            if (!s->pack_pblocks) {
                 memcpy(&render->data_blocks[render->next_free_data_block_num*64],
                        s->pblocks[i], sizeof(*s->pblocks[i]));
             }
@@ -329,3 +345,31 @@ void ff_xvmc_decode_mb(MpegEncContext *s)
     if (render->filled_mv_blocks_num == render->allocated_mv_blocks)
         ff_mpeg_draw_horiz_band(s, 0, 0);
 }
+
+#if CONFIG_MPEG1_XVMC_HWACCEL
+AVHWAccel ff_mpeg1_xvmc_hwaccel = {
+    .name           = "mpeg1_xvmc",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_MPEG1VIDEO,
+    .pix_fmt        = AV_PIX_FMT_XVMC,
+    .start_frame    = ff_xvmc_field_start,
+    .end_frame      = ff_xvmc_field_end,
+    .decode_slice   = NULL,
+    .decode_mb      = ff_xvmc_decode_mb,
+    .priv_data_size = 0,
+};
+#endif
+
+#if CONFIG_MPEG2_XVMC_HWACCEL
+AVHWAccel ff_mpeg2_xvmc_hwaccel = {
+    .name           = "mpeg2_xvmc",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_MPEG2VIDEO,
+    .pix_fmt        = AV_PIX_FMT_XVMC,
+    .start_frame    = ff_xvmc_field_start,
+    .end_frame      = ff_xvmc_field_end,
+    .decode_slice   = NULL,
+    .decode_mb      = ff_xvmc_decode_mb,
+    .priv_data_size = 0,
+};
+#endif
-- 
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