* VBLE Decoder
*/
-#define BITSTREAM_READER_LE
+#include "libavutil/imgutils.h"
+#define BITSTREAM_READER_LE
#include "avcodec.h"
-#include "get_bits.h"
+#include "bitstream.h"
#include "huffyuvdsp.h"
#include "internal.h"
#include "mathops.h"
uint8_t *val; /* First holds the lengths of vlc symbols and then their values */
} VBLEContext;
-static uint8_t vble_read_reverse_unary(GetBitContext *gb)
+static uint8_t vble_read_reverse_unary(BitstreamContext *bc)
{
/* At most we need to read 9 bits total to get indices up to 8 */
- uint8_t val = show_bits(gb, 8);
+ uint8_t val = bitstream_peek(bc, 8);
if (val) {
val = 7 - av_log2_16bit(ff_reverse[val]);
- skip_bits(gb, val + 1);
+ bitstream_skip(bc, val + 1);
return val;
} else {
- skip_bits(gb, 8);
- if (get_bits1(gb))
+ bitstream_skip(bc, 8);
+ if (bitstream_read_bit(bc))
return 8;
}
return UINT8_MAX;
}
-static int vble_unpack(VBLEContext *ctx, GetBitContext *gb)
+static int vble_unpack(VBLEContext *ctx, BitstreamContext *bc)
{
int i;
/* Read all the lengths in first */
for (i = 0; i < ctx->size; i++) {
- ctx->val[i] = vble_read_reverse_unary(gb);
+ ctx->val[i] = vble_read_reverse_unary(bc);
if (ctx->val[i] == UINT8_MAX)
return -1;
for (i = 0; i < ctx->size; i++) {
/* Check we have enough bits left */
- if (get_bits_left(gb) < ctx->val[i])
+ if (bitstream_bits_left(bc) < ctx->val[i])
return -1;
/* get_bits can't take a length of 0 */
if (ctx->val[i])
- ctx->val[i] = (1 << ctx->val[i]) + get_bits(gb, ctx->val[i]) - 1;
+ ctx->val[i] = (1 << ctx->val[i]) + bitstream_read(bc, ctx->val[i]) - 1;
}
return 0;
{
VBLEContext *ctx = avctx->priv_data;
AVFrame *pic = data;
- GetBitContext gb;
+ BitstreamContext bc;
const uint8_t *src = avpkt->data;
int version;
int offset = 0;
if (version != 1)
av_log(avctx, AV_LOG_WARNING, "Unsupported VBLE Version: %d\n", version);
- init_get_bits(&gb, src + 4, (avpkt->size - 4) * 8);
+ bitstream_init8(&bc, src + 4, avpkt->size - 4);
/* Unpack */
- if (vble_unpack(ctx, &gb) < 0) {
+ if (vble_unpack(ctx, &bc) < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid Code\n");
return AVERROR_INVALIDDATA;
}
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
avctx->bits_per_raw_sample = 8;
- ctx->size = avpicture_get_size(avctx->pix_fmt,
- avctx->width, avctx->height);
+ ctx->size = av_image_get_buffer_size(avctx->pix_fmt,
+ avctx->width, avctx->height, 1);
ctx->val = av_malloc(ctx->size * sizeof(*ctx->val));
.init = vble_decode_init,
.close = vble_decode_close,
.decode = vble_decode_frame,
- .capabilities = CODEC_CAP_DR1,
+ .capabilities = AV_CODEC_CAP_DR1,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
};