vpx_codec_err_t vpx_codec_encode(vpx_codec_ctx_t *ctx,
const vpx_image_t *img,
vpx_codec_pts_t pts,
unsigned long duration,
vpx_enc_frame_flags_t flags,
unsigned long deadline)
{
vpx_codec_err_t res;
if (!ctx || (img && !duration))
res = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv)
res = VPX_CODEC_ERROR;
else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
res = VPX_CODEC_INCAPABLE;
else
{
/* Execute in a normalized floating point environment, if the platform
* requires it.
*/
FLOATING_POINT_INIT();
res = ctx->iface->enc.encode(ctx->priv->alg_priv, img, pts,
duration, flags, deadline);
FLOATING_POINT_RESTORE();
}
return SAVE_STATUS(ctx, res);
}
vpx_codec_err_t vpx_codec_encode(vpx_codec_ctx_t *ctx,
const vpx_image_t *img,
vpx_codec_pts_t pts,
unsigned long duration,
vpx_enc_frame_flags_t flags,
unsigned long deadline) {
vpx_codec_err_t res = VPX_CODEC_OK;
if (!ctx || (img && !duration))
res = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv)
res = VPX_CODEC_ERROR;
else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
res = VPX_CODEC_INCAPABLE;
else {
unsigned int num_enc = ctx->priv->enc.total_encoders;
/* Execute in a normalized floating point environment, if the platform
* requires it.
*/
FLOATING_POINT_INIT();
if (num_enc == 1)
res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts,
duration, flags, deadline);
else {
/* Multi-resolution encoding:
* Encode multi-levels in reverse order. For example,
* if mr_total_resolutions = 3, first encode level 2,
* then encode level 1, and finally encode level 0.
*/
int i;
ctx += num_enc - 1;
if (img) img += num_enc - 1;
for (i = num_enc - 1; i >= 0; i--) {
if ((res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts,
duration, flags, deadline)))
break;
ctx--;
if (img) img--;
}
ctx++;
}
FLOATING_POINT_RESTORE();
}
return SAVE_STATUS(ctx, res);
}