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https://git.ffmpeg.org/ffmpeg.git
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avutil: remove deprecated FF_API_FIFO_OLD_API
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
parent
43c62b11aa
commit
4105899245
219
libavutil/fifo.c
219
libavutil/fifo.c
@ -290,222 +290,3 @@ void av_fifo_freep2(AVFifo **f)
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av_freep(f);
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}
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}
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#if FF_API_FIFO_OLD_API
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#include "internal.h"
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FF_DISABLE_DEPRECATION_WARNINGS
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#define OLD_FIFO_SIZE_MAX (size_t)FFMIN3(INT_MAX, UINT32_MAX, SIZE_MAX)
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AVFifoBuffer *av_fifo_alloc_array(size_t nmemb, size_t size)
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{
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AVFifoBuffer *f;
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void *buffer;
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if (nmemb > OLD_FIFO_SIZE_MAX / size)
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return NULL;
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buffer = av_realloc_array(NULL, nmemb, size);
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if (!buffer)
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return NULL;
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f = av_mallocz(sizeof(AVFifoBuffer));
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if (!f) {
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av_free(buffer);
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return NULL;
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}
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f->buffer = buffer;
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f->end = f->buffer + nmemb * size;
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av_fifo_reset(f);
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return f;
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}
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AVFifoBuffer *av_fifo_alloc(unsigned int size)
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{
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return av_fifo_alloc_array(size, 1);
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}
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void av_fifo_free(AVFifoBuffer *f)
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{
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if (f) {
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av_freep(&f->buffer);
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av_free(f);
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}
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}
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void av_fifo_freep(AVFifoBuffer **f)
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{
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if (f) {
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av_fifo_free(*f);
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*f = NULL;
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}
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}
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void av_fifo_reset(AVFifoBuffer *f)
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{
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f->wptr = f->rptr = f->buffer;
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f->wndx = f->rndx = 0;
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}
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int av_fifo_size(const AVFifoBuffer *f)
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{
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return (uint32_t)(f->wndx - f->rndx);
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}
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int av_fifo_space(const AVFifoBuffer *f)
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{
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return f->end - f->buffer - av_fifo_size(f);
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}
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int av_fifo_realloc2(AVFifoBuffer *f, unsigned int new_size)
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{
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unsigned int old_size = f->end - f->buffer;
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if (new_size > OLD_FIFO_SIZE_MAX)
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return AVERROR(EINVAL);
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if (old_size < new_size) {
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size_t offset_r = f->rptr - f->buffer;
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size_t offset_w = f->wptr - f->buffer;
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uint8_t *tmp;
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tmp = av_realloc(f->buffer, new_size);
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if (!tmp)
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return AVERROR(ENOMEM);
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// move the data from the beginning of the ring buffer
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// to the newly allocated space
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// the second condition distinguishes full vs empty fifo
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if (offset_w <= offset_r && av_fifo_size(f)) {
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const size_t copy = FFMIN(new_size - old_size, offset_w);
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memcpy(tmp + old_size, tmp, copy);
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if (copy < offset_w) {
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memmove(tmp, tmp + copy , offset_w - copy);
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offset_w -= copy;
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} else
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offset_w = old_size + copy;
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}
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f->buffer = tmp;
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f->end = f->buffer + new_size;
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f->rptr = f->buffer + offset_r;
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f->wptr = f->buffer + offset_w;
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}
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return 0;
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}
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int av_fifo_grow(AVFifoBuffer *f, unsigned int size)
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{
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unsigned int old_size = f->end - f->buffer;
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if(size + (unsigned)av_fifo_size(f) < size)
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return AVERROR(EINVAL);
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size += av_fifo_size(f);
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if (old_size < size)
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return av_fifo_realloc2(f, FFMAX(size, 2*old_size));
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return 0;
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}
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/* src must NOT be const as it can be a context for func that may need
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* updating (like a pointer or byte counter) */
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int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size,
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int (*func)(void *, void *, int))
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{
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int total = size;
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uint32_t wndx= f->wndx;
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uint8_t *wptr= f->wptr;
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if (size > av_fifo_space(f))
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return AVERROR(ENOSPC);
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do {
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int len = FFMIN(f->end - wptr, size);
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if (func) {
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len = func(src, wptr, len);
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if (len <= 0)
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break;
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} else {
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memcpy(wptr, src, len);
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src = (uint8_t *)src + len;
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}
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wptr += len;
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if (wptr >= f->end)
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wptr = f->buffer;
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wndx += len;
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size -= len;
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} while (size > 0);
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f->wndx= wndx;
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f->wptr= wptr;
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return total - size;
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}
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int av_fifo_generic_peek_at(AVFifoBuffer *f, void *dest, int offset, int buf_size, void (*func)(void*, void*, int))
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{
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uint8_t *rptr = f->rptr;
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if (offset < 0 || buf_size > av_fifo_size(f) - offset)
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return AVERROR(EINVAL);
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if (offset >= f->end - rptr)
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rptr += offset - (f->end - f->buffer);
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else
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rptr += offset;
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while (buf_size > 0) {
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int len;
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if (rptr >= f->end)
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rptr -= f->end - f->buffer;
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len = FFMIN(f->end - rptr, buf_size);
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if (func)
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func(dest, rptr, len);
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else {
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memcpy(dest, rptr, len);
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dest = (uint8_t *)dest + len;
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}
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buf_size -= len;
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rptr += len;
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}
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return 0;
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}
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int av_fifo_generic_peek(AVFifoBuffer *f, void *dest, int buf_size,
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void (*func)(void *, void *, int))
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{
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return av_fifo_generic_peek_at(f, dest, 0, buf_size, func);
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}
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int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size,
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void (*func)(void *, void *, int))
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{
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if (buf_size > av_fifo_size(f))
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return AVERROR(EINVAL);
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do {
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int len = FFMIN(f->end - f->rptr, buf_size);
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if (func)
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func(dest, f->rptr, len);
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else {
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memcpy(dest, f->rptr, len);
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dest = (uint8_t *)dest + len;
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}
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av_fifo_drain(f, len);
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buf_size -= len;
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} while (buf_size > 0);
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return 0;
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}
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/** Discard data from the FIFO. */
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void av_fifo_drain(AVFifoBuffer *f, int size)
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{
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av_assert2(av_fifo_size(f) >= size);
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f->rptr += size;
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if (f->rptr >= f->end)
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f->rptr -= f->end - f->buffer;
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f->rndx += size;
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}
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FF_ENABLE_DEPRECATION_WARNINGS
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#endif
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179
libavutil/fifo.h
179
libavutil/fifo.h
@ -239,185 +239,6 @@ void av_fifo_reset2(AVFifo *f);
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*/
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void av_fifo_freep2(AVFifo **f);
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#if FF_API_FIFO_OLD_API
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typedef struct AVFifoBuffer {
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uint8_t *buffer;
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uint8_t *rptr, *wptr, *end;
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uint32_t rndx, wndx;
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} AVFifoBuffer;
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/**
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* Initialize an AVFifoBuffer.
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* @param size of FIFO
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* @return AVFifoBuffer or NULL in case of memory allocation failure
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* @deprecated use av_fifo_alloc2()
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*/
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attribute_deprecated
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AVFifoBuffer *av_fifo_alloc(unsigned int size);
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/**
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* Initialize an AVFifoBuffer.
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* @param nmemb number of elements
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* @param size size of the single element
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* @return AVFifoBuffer or NULL in case of memory allocation failure
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* @deprecated use av_fifo_alloc2()
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*/
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attribute_deprecated
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AVFifoBuffer *av_fifo_alloc_array(size_t nmemb, size_t size);
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/**
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* Free an AVFifoBuffer.
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* @param f AVFifoBuffer to free
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* @deprecated use the AVFifo API with av_fifo_freep2()
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*/
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attribute_deprecated
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void av_fifo_free(AVFifoBuffer *f);
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/**
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* Free an AVFifoBuffer and reset pointer to NULL.
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* @param f AVFifoBuffer to free
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* @deprecated use the AVFifo API with av_fifo_freep2()
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*/
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attribute_deprecated
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void av_fifo_freep(AVFifoBuffer **f);
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/**
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* Reset the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied.
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* @param f AVFifoBuffer to reset
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* @deprecated use av_fifo_reset2() with the new AVFifo-API
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*/
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attribute_deprecated
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void av_fifo_reset(AVFifoBuffer *f);
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/**
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* Return the amount of data in bytes in the AVFifoBuffer, that is the
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* amount of data you can read from it.
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* @param f AVFifoBuffer to read from
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* @return size
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* @deprecated use av_fifo_can_read() with the new AVFifo-API
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*/
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attribute_deprecated
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int av_fifo_size(const AVFifoBuffer *f);
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/**
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* Return the amount of space in bytes in the AVFifoBuffer, that is the
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* amount of data you can write into it.
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* @param f AVFifoBuffer to write into
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* @return size
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* @deprecated use av_fifo_can_write() with the new AVFifo-API
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*/
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attribute_deprecated
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int av_fifo_space(const AVFifoBuffer *f);
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/**
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* Feed data at specific position from an AVFifoBuffer to a user-supplied callback.
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* Similar as av_fifo_gereric_read but without discarding data.
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* @param f AVFifoBuffer to read from
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* @param offset offset from current read position
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* @param buf_size number of bytes to read
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* @param func generic read function
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* @param dest data destination
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*
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* @return a non-negative number on success, a negative error code on failure
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*
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* @deprecated use the new AVFifo-API with av_fifo_peek() when func == NULL,
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* av_fifo_peek_to_cb() otherwise
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*/
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attribute_deprecated
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int av_fifo_generic_peek_at(AVFifoBuffer *f, void *dest, int offset, int buf_size, void (*func)(void*, void*, int));
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/**
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* Feed data from an AVFifoBuffer to a user-supplied callback.
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* Similar as av_fifo_gereric_read but without discarding data.
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* @param f AVFifoBuffer to read from
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* @param buf_size number of bytes to read
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* @param func generic read function
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* @param dest data destination
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*
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* @return a non-negative number on success, a negative error code on failure
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*
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* @deprecated use the new AVFifo-API with av_fifo_peek() when func == NULL,
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* av_fifo_peek_to_cb() otherwise
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*/
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attribute_deprecated
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int av_fifo_generic_peek(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
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/**
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* Feed data from an AVFifoBuffer to a user-supplied callback.
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* @param f AVFifoBuffer to read from
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* @param buf_size number of bytes to read
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* @param func generic read function
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* @param dest data destination
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*
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* @return a non-negative number on success, a negative error code on failure
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*
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* @deprecated use the new AVFifo-API with av_fifo_read() when func == NULL,
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* av_fifo_read_to_cb() otherwise
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*/
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attribute_deprecated
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int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
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/**
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* Feed data from a user-supplied callback to an AVFifoBuffer.
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* @param f AVFifoBuffer to write to
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* @param src data source; non-const since it may be used as a
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* modifiable context by the function defined in func
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* @param size number of bytes to write
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* @param func generic write function; the first parameter is src,
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* the second is dest_buf, the third is dest_buf_size.
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* func must return the number of bytes written to dest_buf, or <= 0 to
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* indicate no more data available to write.
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* If func is NULL, src is interpreted as a simple byte array for source data.
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* @return the number of bytes written to the FIFO or a negative error code on failure
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*
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* @deprecated use the new AVFifo-API with av_fifo_write() when func == NULL,
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* av_fifo_write_from_cb() otherwise
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*/
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attribute_deprecated
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int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int));
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/**
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* Resize an AVFifoBuffer.
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* In case of reallocation failure, the old FIFO is kept unchanged.
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*
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* @param f AVFifoBuffer to resize
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* @param size new AVFifoBuffer size in bytes
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* @return <0 for failure, >=0 otherwise
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*
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* @deprecated use the new AVFifo-API with av_fifo_grow2() to increase FIFO size,
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* decreasing FIFO size is not supported
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*/
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attribute_deprecated
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int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size);
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/**
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* Enlarge an AVFifoBuffer.
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* In case of reallocation failure, the old FIFO is kept unchanged.
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* The new fifo size may be larger than the requested size.
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*
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* @param f AVFifoBuffer to resize
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* @param additional_space the amount of space in bytes to allocate in addition to av_fifo_size()
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* @return <0 for failure, >=0 otherwise
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*
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* @deprecated use the new AVFifo-API with av_fifo_grow2(); note that unlike
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* this function it adds to the allocated size, rather than to the used size
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*/
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attribute_deprecated
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int av_fifo_grow(AVFifoBuffer *f, unsigned int additional_space);
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/**
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* Read and discard the specified amount of data from an AVFifoBuffer.
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* @param f AVFifoBuffer to read from
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* @param size amount of data to read in bytes
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*
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* @deprecated use the new AVFifo-API with av_fifo_drain2()
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*/
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attribute_deprecated
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void av_fifo_drain(AVFifoBuffer *f, int size);
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#endif
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/**
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* @}
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*/
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@ -105,7 +105,6 @@
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* @{
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*/
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#define FF_API_FIFO_OLD_API (LIBAVUTIL_VERSION_MAJOR < 59)
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#define FF_API_XVMC (LIBAVUTIL_VERSION_MAJOR < 59)
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#define FF_API_OLD_CHANNEL_LAYOUT (LIBAVUTIL_VERSION_MAJOR < 59)
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#define FF_API_AV_FOPEN_UTF8 (LIBAVUTIL_VERSION_MAJOR < 59)
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