generic-library/vpx
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Refactor the vp9_get_frame code for frame parallel.

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In frame parallel decoding mode,  there will be still several frames inside
the decoder when application stop calling vpx_codec_decode to decode frames.
The application will need to keep calling vpx_codec_get_frame to get all the
remaining decoded frames in the decoder.

Change-Id: I2ce8260a91282f045bb9a6093ff8a606b1990f14
This commit is contained in:
hkuang 2014-05-23 15:18:41 -07:00
parent ad943aa817
commit 6f5aba069a
1 changed files with 11 additions and 18 deletions
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29
vp9/vp9_dx_iface.c
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@ -38,7 +38,6 @@ struct vpx_codec_alg_priv {
vpx_decrypt_cb decrypt_cb;
void *decrypt_state;
vpx_image_t img;
int img_avail;
int invert_tile_order;
// External frame buffer info to save for VP9 common.
@ -245,15 +244,11 @@ static void init_decoder(vpx_codec_alg_priv_t *ctx) {
static vpx_codec_err_t decode_one(vpx_codec_alg_priv_t *ctx,
const uint8_t **data, unsigned int data_sz,
void *user_priv, int64_t deadline) {
YV12_BUFFER_CONFIG sd;
vp9_ppflags_t flags = {0, 0, 0};
vp9_ppflags_t flags = {0};
VP9_COMMON *cm = NULL;
(void)deadline;
vp9_zero(sd);
ctx->img_avail = 0;
// Determine the stream parameters. Note that we rely on peek_si to
// validate that we have a buffer that does not wrap around the top
// of the heap.
@ -288,13 +283,6 @@ static vpx_codec_err_t decode_one(vpx_codec_alg_priv_t *ctx,
if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)
set_ppflags(ctx, &flags);
if (vp9_get_raw_frame(ctx->pbi, &sd, &flags))
return update_error_state(ctx, &cm->error);
yuvconfig2image(&ctx->img, &sd, user_priv);
ctx->img.fb_priv = cm->frame_bufs[cm->new_fb_idx].raw_frame_buffer.priv;
ctx->img_avail = 1;
return VPX_CODEC_OK;
}
@ -423,15 +411,20 @@ static vpx_image_t *decoder_get_frame(vpx_codec_alg_priv_t *ctx,
vpx_codec_iter_t *iter) {
vpx_image_t *img = NULL;
if (ctx->img_avail) {
// iter acts as a flip flop, so an image is only returned on the first
// call to get_frame.
if (!(*iter)) {
// iter acts as a flip flop, so an image is only returned on the first
// call to get_frame.
if (*iter == NULL && ctx->pbi != NULL) {
YV12_BUFFER_CONFIG sd;
vp9_ppflags_t flags = {0, 0, 0};
if (vp9_get_raw_frame(ctx->pbi, &sd, &flags) == 0) {
VP9_COMMON *cm = &ctx->pbi->common;
yuvconfig2image(&ctx->img, &sd, NULL);
ctx->img.fb_priv = cm->frame_bufs[cm->new_fb_idx].raw_frame_buffer.priv;
img = &ctx->img;
*iter = img;
}
}
ctx->img_avail = 0;
return img;
}