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Expose functions for managing non-image chunks on WebPAnimEncoder

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Change-Id: Ie6376267eee6df3517417b6cadafcdf6112bd854
This commit is contained in:
natewood 2024-02-27 06:59:54 -08:00
parent 1fb9f3dcf1
commit 45f995a37e
2 changed files with 69 additions and 1 deletions
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19
src/mux/anim_encode.c
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@ -1589,4 +1589,23 @@ const char* WebPAnimEncoderGetError(WebPAnimEncoder* enc) {
return enc->error_str_;
}
WebPMuxError WebPAnimEncoderSetChunk(
WebPAnimEncoder* enc, const char fourcc[4], const WebPData* chunk_data,
int copy_data) {
if (enc == NULL) return WEBP_MUX_INVALID_ARGUMENT;
return WebPMuxSetChunk(enc->mux_, fourcc, chunk_data, copy_data);
}
WebPMuxError WebPAnimEncoderGetChunk(
const WebPAnimEncoder* enc, const char fourcc[4], WebPData* chunk_data) {
if (enc == NULL) return WEBP_MUX_INVALID_ARGUMENT;
return WebPMuxGetChunk(enc->mux_, fourcc, chunk_data);
}
WebPMuxError WebPAnimEncoderDeleteChunk(
WebPAnimEncoder* enc, const char fourcc[4]) {
if (enc == NULL) return WEBP_MUX_INVALID_ARGUMENT;
return WebPMuxDeleteChunk(enc->mux_, fourcc);
}
// -----------------------------------------------------------------------------

51
src/webp/mux.h
View File

@ -22,7 +22,7 @@
extern "C" {
#endif
#define WEBP_MUX_ABI_VERSION 0x0108 // MAJOR(8b) + MINOR(8b)
#define WEBP_MUX_ABI_VERSION 0x0109 // MAJOR(8b) + MINOR(8b)
//------------------------------------------------------------------------------
// Mux API
@ -523,6 +523,55 @@ WEBP_EXTERN const char* WebPAnimEncoderGetError(WebPAnimEncoder* enc);
// enc - (in/out) object to be deleted
WEBP_EXTERN void WebPAnimEncoderDelete(WebPAnimEncoder* enc);
//------------------------------------------------------------------------------
// Non-image chunks.
// Note: Only non-image related chunks should be managed through chunk APIs.
// (Image related chunks are: "ANMF", "VP8 ", "VP8L" and "ALPH").
// Adds a chunk with id 'fourcc' and data 'chunk_data' in the enc object.
// Any existing chunk(s) with the same id will be removed.
// Parameters:
// enc - (in/out) object to which the chunk is to be added
// fourcc - (in) a character array containing the fourcc of the given chunk;
// e.g., "ICCP", "XMP ", "EXIF", etc.
// chunk_data - (in) the chunk data to be added
// copy_data - (in) value 1 indicates given data WILL be copied to the enc
// object and value 0 indicates data will NOT be copied.
// Returns:
// WEBP_MUX_INVALID_ARGUMENT - if enc, fourcc or chunk_data is NULL.
// WEBP_MUX_MEMORY_ERROR - on memory allocation error.
// WEBP_MUX_OK - on success.
WEBP_EXTERN WebPMuxError WebPAnimEncoderSetChunk(
WebPAnimEncoder* enc, const char fourcc[4], const WebPData* chunk_data,
int copy_data);
// Gets a reference to the data of the chunk with id 'fourcc' in the enc object.
// The caller should NOT free the returned data.
// Parameters:
// enc - (in) object from which the chunk data is to be fetched
// fourcc - (in) a character array containing the fourcc of the chunk;
// e.g., "ICCP", "XMP ", "EXIF", etc.
// chunk_data - (out) returned chunk data
// Returns:
// WEBP_MUX_INVALID_ARGUMENT - if enc, fourcc or chunk_data is NULL.
// WEBP_MUX_NOT_FOUND - If enc does not contain a chunk with the given id.
// WEBP_MUX_OK - on success.
WEBP_EXTERN WebPMuxError WebPAnimEncoderGetChunk(
const WebPAnimEncoder* enc, const char fourcc[4], WebPData* chunk_data);
// Deletes the chunk with the given 'fourcc' from the enc object.
// Parameters:
// enc - (in/out) object from which the chunk is to be deleted
// fourcc - (in) a character array containing the fourcc of the chunk;
// e.g., "ICCP", "XMP ", "EXIF", etc.
// Returns:
// WEBP_MUX_INVALID_ARGUMENT - if enc or fourcc is NULL.
// WEBP_MUX_NOT_FOUND - If enc does not contain a chunk with the given fourcc.
// WEBP_MUX_OK - on success.
WEBP_EXTERN WebPMuxError WebPAnimEncoderDeleteChunk(
WebPAnimEncoder* enc, const char fourcc[4]);
//------------------------------------------------------------------------------
#ifdef __cplusplus