static int vda_h264_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size) { VDAContext *vda = avctx->internal->hwaccel_priv_data; struct vda_context *vda_ctx = avctx->hwaccel_context; void *tmp; if (!vda_ctx->decoder) return -1; tmp = av_fast_realloc(vda->bitstream, &vda->allocated_size, vda->bitstream_size + size + 4); if (!tmp) return AVERROR(ENOMEM); vda->bitstream = tmp; AV_WB32(vda->bitstream + vda->bitstream_size, size); memcpy(vda->bitstream + vda->bitstream_size + 4, buffer, size); vda->bitstream_size += size + 4; return 0; }