[FFmpeg-cvslog] vp3/theora: flush after seek.

[Ronald S. Bultje]

ffmpeg | branch: release/0.8 | Ronald S. Bultje <rsbultje at gmail.com> | Tue Jul 26 10:58:29 2011 -0700| [8abaa83d2c5ddc1cfe3f5e3eabcaac2b33cd5f12] | committer: Anton Khirnov

vp3/theora: flush after seek.
(cherry picked from commit 8dcf5184307f072d55fb29373be05ef8b0fd02df)

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8abaa83d2c5ddc1cfe3f5e3eabcaac2b33cd5f12
---

 libavcodec/vp3.c |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+), 0 deletions(-)

diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index c3dff7f..c117a64 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -2321,6 +2321,26 @@ static av_cold int theora_decode_init(AVCodecContext *avctx)
     return vp3_decode_init(avctx);
 }
 
+static void vp3_decode_flush(AVCodecContext *avctx)
+{
+    Vp3DecodeContext *s = avctx->priv_data;
+
+    if (s->golden_frame.data[0]) {
+        if (s->golden_frame.data[0] == s->last_frame.data[0])
+            memset(&s->last_frame, 0, sizeof(AVFrame));
+        if (s->current_frame.data[0] == s->golden_frame.data[0])
+            memset(&s->current_frame, 0, sizeof(AVFrame));
+        ff_thread_release_buffer(avctx, &s->golden_frame);
+    }
+    if (s->last_frame.data[0]) {
+        if (s->current_frame.data[0] == s->last_frame.data[0])
+            memset(&s->current_frame, 0, sizeof(AVFrame));
+        ff_thread_release_buffer(avctx, &s->last_frame);
+    }
+    if (s->current_frame.data[0])
+        ff_thread_release_buffer(avctx, &s->current_frame);
+}
+
 AVCodec ff_theora_decoder = {
     "theora",
     AVMEDIA_TYPE_VIDEO,
@@ -2332,6 +2352,7 @@ AVCodec ff_theora_decoder = {
     vp3_decode_frame,
     CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
     NULL,
+    .flush = vp3_decode_flush,
     .long_name = NULL_IF_CONFIG_SMALL("Theora"),
     .update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
 };
@@ -2348,6 +2369,7 @@ AVCodec ff_vp3_decoder = {
     vp3_decode_frame,
     CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_FRAME_THREADS,
     NULL,
+    .flush = vp3_decode_flush,
     .long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
     .update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
 };