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author | hkuang <hkuang@google.com> | 2014-04-09 14:20:00 -0700 |
---|---|---|
committer | Lajos Molnar <lajos@google.com> | 2014-04-10 17:18:16 +0000 |
commit | 4fb68e5dd4e93c7599dc905d861de11ac39c5585 (patch) | |
tree | a9a16f0806a169ec4291bcd60bbfefccebb338d4 /libvpx/vp9/encoder/vp9_lookahead.c | |
parent | 2ec72e65689c948e92b826ae1e867bf369e72f13 (diff) | |
download | android_external_libvpx-4fb68e5dd4e93c7599dc905d861de11ac39c5585.tar.gz android_external_libvpx-4fb68e5dd4e93c7599dc905d861de11ac39c5585.tar.bz2 android_external_libvpx-4fb68e5dd4e93c7599dc905d861de11ac39c5585.zip |
Roll latest libvpx to fix hang when doing adaptive playback.
VP9 decoder will hang when switching from frames with 2 tiles to
4 tiles on a 4 core device.
libvpx hash:4fffefe189a9123d4b04482c26a1be5eb632b397
(cherry picked from commit 6ac915abcdb404a00d927fe6308a47fcf09d9519)
Bug: 13931133
Change-Id: I24a51fd572ca7e872bc440491e2c645a20e9a736
Diffstat (limited to 'libvpx/vp9/encoder/vp9_lookahead.c')
-rw-r--r-- | libvpx/vp9/encoder/vp9_lookahead.c | 51 |
1 files changed, 33 insertions, 18 deletions
diff --git a/libvpx/vp9/encoder/vp9_lookahead.c b/libvpx/vp9/encoder/vp9_lookahead.c index a88d5ec..cf03e01 100644 --- a/libvpx/vp9/encoder/vp9_lookahead.c +++ b/libvpx/vp9/encoder/vp9_lookahead.c @@ -28,8 +28,8 @@ struct lookahead_ctx { /* Return the buffer at the given absolute index and increment the index */ -static struct lookahead_entry * pop(struct lookahead_ctx *ctx, - unsigned int *idx) { +static struct lookahead_entry *pop(struct lookahead_ctx *ctx, + unsigned int *idx) { unsigned int index = *idx; struct lookahead_entry *buf = ctx->buf + index; @@ -55,16 +55,19 @@ void vp9_lookahead_destroy(struct lookahead_ctx *ctx) { } -struct lookahead_ctx * vp9_lookahead_init(unsigned int width, - unsigned int height, - unsigned int subsampling_x, - unsigned int subsampling_y, - unsigned int depth) { +struct lookahead_ctx *vp9_lookahead_init(unsigned int width, + unsigned int height, + unsigned int subsampling_x, + unsigned int subsampling_y, + unsigned int depth) { struct lookahead_ctx *ctx = NULL; // Clamp the lookahead queue depth depth = clamp(depth, 1, MAX_LAG_BUFFERS); + // Allocate memory to keep previous source frames available. + depth += MAX_PRE_FRAMES; + // Allocate the lookahead structures ctx = calloc(1, sizeof(*ctx)); if (ctx) { @@ -96,7 +99,7 @@ int vp9_lookahead_push(struct lookahead_ctx *ctx, YV12_BUFFER_CONFIG *src, int mb_cols = (src->y_width + 15) >> 4; #endif - if (ctx->sz + 1 > ctx->max_sz) + if (ctx->sz + 1 + MAX_PRE_FRAMES > ctx->max_sz) return 1; ctx->sz++; buf = pop(ctx, &ctx->write_idx); @@ -159,11 +162,11 @@ int vp9_lookahead_push(struct lookahead_ctx *ctx, YV12_BUFFER_CONFIG *src, } -struct lookahead_entry * vp9_lookahead_pop(struct lookahead_ctx *ctx, - int drain) { +struct lookahead_entry *vp9_lookahead_pop(struct lookahead_ctx *ctx, + int drain) { struct lookahead_entry *buf = NULL; - if (ctx->sz && (drain || ctx->sz == ctx->max_sz)) { + if (ctx->sz && (drain || ctx->sz == ctx->max_sz - MAX_PRE_FRAMES)) { buf = pop(ctx, &ctx->read_idx); ctx->sz--; } @@ -171,16 +174,28 @@ struct lookahead_entry * vp9_lookahead_pop(struct lookahead_ctx *ctx, } -struct lookahead_entry * vp9_lookahead_peek(struct lookahead_ctx *ctx, - int index) { +struct lookahead_entry *vp9_lookahead_peek(struct lookahead_ctx *ctx, + int index) { struct lookahead_entry *buf = NULL; - if (index < (int)ctx->sz) { - index += ctx->read_idx; - if (index >= (int)ctx->max_sz) - index -= ctx->max_sz; - buf = ctx->buf + index; + if (index >= 0) { + // Forward peek + if (index < (int)ctx->sz) { + index += ctx->read_idx; + if (index >= (int)ctx->max_sz) + index -= ctx->max_sz; + buf = ctx->buf + index; + } + } else if (index < 0) { + // Backward peek + if (-index <= MAX_PRE_FRAMES) { + index += ctx->read_idx; + if (index < 0) + index += ctx->max_sz; + buf = ctx->buf + index; + } } + return buf; } |