Encode a frame to an output stream on the filesystem
#include <img.h>
int img_write( img_lib_t ilib,
io_stream_t* output,
const img_encode_callouts_t* callouts,
img_t* img
img_codec_t* codec );
- ilib
- A handle for the image library, returned by img_lib_attach().
- output
- An io_stream_t to use for the output.
- callouts
- A pointer to an img_encode_callouts_t structure that provides system callouts for the encoder. If you specify NULL for this value, the library supplies a set of default callouts.
- img
- The address of an img_t structure describing the frame to be encoded.
- codec
- The codec to use for the encoding. You must use one of img_codec_list_byext() or
img_codec_list_bymime() to get the codec.
img
This function encodes a frame to an io_stream_t output stream on the filesystem.
- IMG_ERR_OK
- Success
- IMG_ERR_FILE
- Error accessing path (errno is set).
- IMG_ERR_MEM
- Memory-allocation failure.
- IMG_ERR_FORMAT
- No appropriate codec could be found that handles the extension included in the provided filename. The codec you require could be missing or corrupt.
- IMG_ERR_NOSUPPORT
- Input data format not supported; the codec and application could not agree on an output format.
- IMG_ERR_TRUNC
- Error writing data; file was truncated.
- IMG_ERR_INTR
- Encode was interrupted by application.
Image library
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
img_t,
img_lib_attach()