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avcodec/vp56: Add vpX_rac_is_end() to check for the end of input

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-08-11 22:28:31 +02:00
parent c0692cb2bb
commit 0fb83b4c91

View File

@ -227,6 +227,14 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
extern const uint8_t ff_vp56_norm_shift[256];
int ff_vp56_init_range_decoder(VP56RangeCoder *c, const uint8_t *buf, int buf_size);
/**
* vp5689 returns 1 if the end of the stream has been reached, 0 otherwise.
*/
static av_always_inline int vpX_rac_is_end(VP56RangeCoder *c)
{
return c->end <= c->buffer && c->bits >= 0;
}
static av_always_inline unsigned int vp56_rac_renorm(VP56RangeCoder *c)
{
int shift = ff_vp56_norm_shift[c->high];