diff --git a/doc/APIchanges b/doc/APIchanges index 4fd30def410aa3c42ac9b02e082b302b70a79e57..69995949661cb55a8d75d6fb62d3e81a8f56bed9 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -15,6 +15,9 @@ libavutil: 2012-10-22 API changes, most recent first: +2014-05-xx - xxxxxxx - lavu 52.86.100 - fifo.h + Add av_fifo_alloc_array() function. + 2014-05-xx - xxxxxxx - lavu 53.15.0 - frame.h, display.h Add AV_FRAME_DATA_DISPLAYMATRIX for exporting frame-level spatial rendering on video frames for proper display. diff --git a/libavutil/fifo.c b/libavutil/fifo.c index 09ffa4fd26eb107cc37f9c83574f7913530bc708..77391ee7f27360b1fbd05d839e96587c8c379121 100644 --- a/libavutil/fifo.c +++ b/libavutil/fifo.c @@ -24,19 +24,34 @@ #include "common.h" #include "fifo.h" -AVFifoBuffer *av_fifo_alloc(unsigned int size) +static AVFifoBuffer *fifo_alloc_common(void *buffer, size_t size) { - AVFifoBuffer *f = av_mallocz(sizeof(AVFifoBuffer)); - if (!f) + AVFifoBuffer *f; + if (!buffer) + return NULL; + f = av_mallocz(sizeof(AVFifoBuffer)); + if (!f) { + av_free(buffer); return NULL; - f->buffer = av_malloc(size); + } + f->buffer = buffer; f->end = f->buffer + size; av_fifo_reset(f); - if (!f->buffer) - av_freep(&f); return f; } +AVFifoBuffer *av_fifo_alloc(unsigned int size) +{ + void *buffer = av_malloc(size); + return fifo_alloc_common(buffer, size); +} + +AVFifoBuffer *av_fifo_alloc_array(size_t nmemb, size_t size) +{ + void *buffer = av_malloc_array(nmemb, size); + return fifo_alloc_common(buffer, nmemb * size); +} + void av_fifo_free(AVFifoBuffer *f) { if (f) { diff --git a/libavutil/fifo.h b/libavutil/fifo.h index f0b11094d0c40b27de20a8182609fa8e193e85bd..dda7dd2e964500d683a3801478fb9fed30fdd617 100644 --- a/libavutil/fifo.h +++ b/libavutil/fifo.h @@ -41,6 +41,14 @@ typedef struct AVFifoBuffer { */ AVFifoBuffer *av_fifo_alloc(unsigned int size); +/** + * Initialize an AVFifoBuffer. + * @param nmemb number of elements + * @param size size of the single element + * @return AVFifoBuffer or NULL in case of memory allocation failure + */ +AVFifoBuffer *av_fifo_alloc_array(size_t nmemb, size_t size); + /** * Free an AVFifoBuffer. * @param f AVFifoBuffer to free diff --git a/libavutil/version.h b/libavutil/version.h index 9eeba9abd953bc2aed6372bc6afc71bc0cfd4a39..b134615a5bf91e048f2f642f7f1553b8e265f332 100644 --- a/libavutil/version.h +++ b/libavutil/version.h @@ -56,7 +56,7 @@ */ #define LIBAVUTIL_VERSION_MAJOR 52 -#define LIBAVUTIL_VERSION_MINOR 85 +#define LIBAVUTIL_VERSION_MINOR 86 #define LIBAVUTIL_VERSION_MICRO 100 #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \