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img_encode_begin()

Prepare to encode a frame to a stream

Synopsis:

#include <img.h>

int img_encode_begin( img_codec_t codec,
                      io_stream_t *output,
                      uintptr_t *encode_data );

codec: The codec to use. To figure out a codec to use, see img_codec_list(), img_codec_list_byext(), and img_codec_list_bymime().
output: The output destination.
encode_data: An address of a uintptr_t which the encoder uses to store data it needs across the encode process. Pass a valid address of a uintptr_t initialized to 0, not NULL.

img

This function prepares to encode a frame (or series of frames) to a stream.

IMG_ERR_OK: Success.
IMG_ERR_NOTIMPL: The codec doesn't support encoding.
Other: Any other code that a encoder's encode_egin() function may pass back to flag an error (see img_errno.h for a list of defined errors).

Image library