h264: deMpegEncContextize

Most of the changes are just trivial are just trivial replacements of
fields from MpegEncContext with equivalent fields in H264Context.
Everything in h264* other than h264.c are those trivial changes.

The nontrivial parts are:
1) extracting a simplified version of the frame management code from
   mpegvideo.c. We don't need last/next_picture anymore, since h264 uses
   its own more complex system already and those were set only to appease
   the mpegvideo parts.
2) some tables that need to be allocated/freed in appropriate places.
3) hwaccels -- mostly trivial replacements.
   for dxva, the draw_horiz_band() call is moved from
   ff_dxva2_common_end_frame() to per-codec end_frame() callbacks,
   because it's now different for h264 and MpegEncContext-based
   decoders.
4) svq3 -- it does not use h264 complex reference system, so I just
   added some very simplistic frame management instead and dropped the
   use of ff_h264_frame_start(). Because of this I also had to move some
   initialization code to svq3.

Additional fixes for chroma format and bit depth changes by
Janne Grunau <janne-libav@jannau.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

1 files changed, 1 insertions, 6 deletions

diff --git a/libavcodec/vaapi_mpeg2.c b/libavcodec/vaapi_mpeg2.c
index cfe5d3abe0..eb94131215 100644
--- a/libavcodec/vaapi_mpeg2.c
+++ b/libavcodec/vaapi_mpeg2.c
@@ -99,11 +99,6 @@ static int vaapi_mpeg2_start_frame(AVCodecContext *avctx, av_unused const uint8_
     return 0;
 }
 
-static int vaapi_mpeg2_end_frame(AVCodecContext *avctx)
-{
-    return ff_vaapi_common_end_frame(avctx->priv_data);
-}
-
 static int vaapi_mpeg2_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
 {
     MpegEncContext * const s = avctx->priv_data;
@@ -144,6 +139,6 @@ AVHWAccel ff_mpeg2_vaapi_hwaccel = {
     .id             = AV_CODEC_ID_MPEG2VIDEO,
     .pix_fmt        = AV_PIX_FMT_VAAPI_VLD,
     .start_frame    = vaapi_mpeg2_start_frame,
-    .end_frame      = vaapi_mpeg2_end_frame,
+    .end_frame      = ff_vaapi_mpeg_end_frame,
     .decode_slice   = vaapi_mpeg2_decode_slice,
 };