vp9_dx_iface: Stop using iter parameter incorrectly

'iter' parameter is being checked for NULL in every call to
decoder_get_frame which is quite pointless because it is always
going to be NULL unless the application changed it. The code works
as described only because vp9_get_raw_frame returns -1 on all
subsequent calls after the first.

Change-Id: Ic736b9e8fe36fc1430fc11d6a9b292be02497248
parent a059dc09
......@@ -378,9 +378,11 @@ static vpx_image_t *decoder_get_frame(vpx_codec_alg_priv_t *ctx,
vpx_codec_iter_t *iter) {
vpx_image_t *img = NULL;
// 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) {
// Legacy parameter carried over from VP8. Has no effect for VP9 since we
// always return only 1 frame per decode call.
(void)iter;
if (ctx->pbi != NULL) {
YV12_BUFFER_CONFIG sd;
vp9_ppflags_t flags = { 0, 0, 0 };
if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) set_ppflags(ctx, &flags);
......
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