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);
}
aom_image_t *aom_codec_get_frame(aom_codec_ctx_t *ctx, aom_codec_iter_t *iter) {
aom_image_t *img;
if (!ctx || !iter || !ctx->iface || !ctx->priv)
img = NULL;
else
img = ctx->iface->dec.get_frame(get_alg_priv(ctx), iter);
return img;
}
vpx_codec_err_t vpx_codec_enc_config_set(vpx_codec_ctx_t *ctx,
const vpx_codec_enc_cfg_t *cfg) {
vpx_codec_err_t res;
if (!ctx || !ctx->iface || !ctx->priv || !cfg)
res = VPX_CODEC_INVALID_PARAM;
else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
res = VPX_CODEC_INCAPABLE;
else
res = ctx->iface->enc.cfg_set(get_alg_priv(ctx), cfg);
return SAVE_STATUS(ctx, res);
}
aom_codec_err_t aom_codec_decode(aom_codec_ctx_t *ctx, const uint8_t *data,
size_t data_sz, void *user_priv) {
aom_codec_err_t res;
/* Sanity checks */
/* NULL data ptr allowed if data_sz is 0 too */
if (!ctx || (!data && data_sz) || (data && !data_sz))
res = AOM_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv)
res = AOM_CODEC_ERROR;
else {
res = ctx->iface->dec.decode(get_alg_priv(ctx), data, data_sz, user_priv);
}
return SAVE_STATUS(ctx, res);
}
vpx_fixed_buf_t *vpx_codec_get_global_headers(vpx_codec_ctx_t *ctx) {
vpx_fixed_buf_t *buf = NULL;
if (ctx) {
if (!ctx->iface || !ctx->priv)
ctx->err = VPX_CODEC_ERROR;
else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
ctx->err = VPX_CODEC_INCAPABLE;
else if (!ctx->iface->enc.get_glob_hdrs)
ctx->err = VPX_CODEC_INCAPABLE;
else
buf = ctx->iface->enc.get_glob_hdrs(get_alg_priv(ctx));
}
return buf;
}
const vpx_image_t *vpx_codec_get_preview_frame(vpx_codec_ctx_t *ctx) {
vpx_image_t *img = NULL;
if (ctx) {
if (!ctx->iface || !ctx->priv)
ctx->err = VPX_CODEC_ERROR;
else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
ctx->err = VPX_CODEC_INCAPABLE;
else if (!ctx->iface->enc.get_preview)
ctx->err = VPX_CODEC_INCAPABLE;
else
img = ctx->iface->enc.get_preview(get_alg_priv(ctx));
}
return img;
}
aom_codec_err_t aom_codec_set_frame_buffer_functions(
aom_codec_ctx_t *ctx, aom_get_frame_buffer_cb_fn_t cb_get,
aom_release_frame_buffer_cb_fn_t cb_release, void *cb_priv) {
aom_codec_err_t res;
if (!ctx || !cb_get || !cb_release) {
res = AOM_CODEC_INVALID_PARAM;
} else if (!ctx->iface || !ctx->priv ||
!(ctx->iface->caps & AOM_CODEC_CAP_EXTERNAL_FRAME_BUFFER)) {
res = AOM_CODEC_ERROR;
} else {
res = ctx->iface->dec.set_fb_fn(get_alg_priv(ctx), cb_get, cb_release,
cb_priv);
}
return SAVE_STATUS(ctx, res);
}
const vpx_codec_cx_pkt_t *vpx_codec_get_cx_data(vpx_codec_ctx_t *ctx,
vpx_codec_iter_t *iter) {
const vpx_codec_cx_pkt_t *pkt = NULL;
if (ctx) {
if (!iter)
ctx->err = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv)
ctx->err = VPX_CODEC_ERROR;
else if (!(ctx->iface->caps & VPX_CODEC_CAP_ENCODER))
ctx->err = VPX_CODEC_INCAPABLE;
else
pkt = ctx->iface->enc.get_cx_data(get_alg_priv(ctx), iter);
}
if (pkt && pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
// If the application has specified a destination area for the
// compressed data, and the codec has not placed the data there,
// and it fits, copy it.
vpx_codec_priv_t *const priv = ctx->priv;
char *const dst_buf = (char *)priv->enc.cx_data_dst_buf.buf;
if (dst_buf &&
pkt->data.raw.buf != dst_buf &&
pkt->data.raw.sz + priv->enc.cx_data_pad_before +
priv->enc.cx_data_pad_after <= priv->enc.cx_data_dst_buf.sz) {
vpx_codec_cx_pkt_t *modified_pkt = &priv->enc.cx_data_pkt;
memcpy(dst_buf + priv->enc.cx_data_pad_before, pkt->data.raw.buf,
pkt->data.raw.sz);
*modified_pkt = *pkt;
modified_pkt->data.raw.buf = dst_buf;
modified_pkt->data.raw.sz += priv->enc.cx_data_pad_before +
priv->enc.cx_data_pad_after;
pkt = modified_pkt;
}
if (dst_buf == pkt->data.raw.buf) {
priv->enc.cx_data_dst_buf.buf = dst_buf + pkt->data.raw.sz;
priv->enc.cx_data_dst_buf.sz -= pkt->data.raw.sz;
}
}
return pkt;
}
aom_codec_err_t aom_codec_get_stream_info(aom_codec_ctx_t *ctx,
aom_codec_stream_info_t *si) {
aom_codec_err_t res;
if (!ctx || !si) {
res = AOM_CODEC_INVALID_PARAM;
} else if (!ctx->iface || !ctx->priv) {
res = AOM_CODEC_ERROR;
} else {
/* Set default/unknown values */
si->w = 0;
si->h = 0;
res = ctx->iface->dec.get_si(get_alg_priv(ctx), si);
}
return SAVE_STATUS(ctx, res);
}
vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx,
vpx_codec_stream_info_t *si) {
vpx_codec_err_t res;
if (!ctx || !si || si->sz < sizeof(vpx_codec_stream_info_t))
res = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv)
res = VPX_CODEC_ERROR;
else {
/* Set default/unknown values */
si->w = 0;
si->h = 0;
res = ctx->iface->dec.get_si(get_alg_priv(ctx), si);
}
return SAVE_STATUS(ctx, res);
}
vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, const uint8_t *data,
unsigned int data_sz, void *user_priv,
long deadline) {
vpx_codec_err_t res;
/* Sanity checks */
/* NULL data ptr allowed if data_sz is 0 too */
if (!ctx || (!data && data_sz) || (data && !data_sz))
res = VPX_CODEC_INVALID_PARAM;
else if (!ctx->iface || !ctx->priv)
res = VPX_CODEC_ERROR;
else {
res = ctx->iface->dec.decode(get_alg_priv(ctx), data, data_sz, user_priv,
deadline);
}
return SAVE_STATUS(ctx, res);
}